Use first class task objects instead of global counter

The global counter approach is easy to understand but it's brittle and depends on implicit behaviour that is not very discoverable.

With a global counter, if any goroutine accidentally decrements the counter twice, we'll think lazygit is idle when it's actually busy.
Likewise if a goroutine accidentally increments the counter twice we'll think lazygit is busy when it's actually idle.
With the new approach we have a map of tasks where each task can either be busy or not. We create a new task and add it to the map
when we spawn a worker goroutine (among other things) and we remove it once the task is done.

The task can also be paused and continued for situations where we switch back and forth between running a program and asking for user
input.

In order for this to work with `git push` (and other commands that require credentials) we need to obtain the task from gocui when
we create the worker goroutine, and then pass it along to the commands package to pause/continue the task as required. This is
MUCH more discoverable than the old approach which just decremented and incremented the global counter from within the commands package,
but it's at the cost of expanding some function signatures (arguably a good thing).

Likewise, whenever you want to call WithWaitingStatus or WithLoaderPanel the callback will now have access to the task for pausing/
continuing. We only need to actually make use of this functionality in a couple of places so it's a high price to pay, but I don't
know if I want to introduce a WithWaitingStatusTask and WithLoaderPanelTask function (open to suggestions).

docs/dev/Busy.md

@@ -25,27 +25,27 @@ First, it's important to distinguish three different types of goroutines:
 
 The point of distinguishing worker goroutines from background goroutines is that when any worker goroutine is running, we consider Lazygit to be 'busy', whereas this is not the case with background goroutines. It would be pointless to have background goroutines be considered 'busy' because then Lazygit would be considered busy for the entire duration of the program!
 
-Lazygit is considered to be 'busy' so long as the counter remains greater than zero, and as soon as it hits zero, Lazygit is considered 'idle' and the integration test is notified. So it's important that we play by the rules below to ensure that after the user does anything, all the processing that follows happens in a contiguous block of busy-ness with no gaps.
+In gocui, the underlying package we use for managing the UI and events, we keep track of how many busy goroutines there are using the `Task` type. A task represents some work being done by lazygit. The gocui Gui struct holds a map of tasks and allows creating a new task (which adds it to the map), pausing/continuing a task, and marking a task as done (which removes it from the map). Lazygit is considered to be busy so long as there is at least one busy task in the map; otherwise it's considered idle. When Lazygit goes from busy to idle, it notifies the integration test.
 
-In gocui, the underlying package we use for managing the UI and events, we keep track of how many busy goroutines there are with a `busyCount` counter.
+It's important that we play by the rules below to ensure that after the user does anything, all the processing that follows happens in a contiguous block of busy-ness with no gaps.
 
 ### Spawning a worker goroutine
 
-Here's the basic implementation of `OnWorker`:
+Here's the basic implementation of `OnWorker` (using the same flow as `WaitGroup`s):
 
 ```go
-func (g *Gui) OnWorker(f func()) {
-	g.IncrementBusyCount()
+func (g *Gui) OnWorker(f func(*Task)) {
+	task := g.NewTask()
 	go func() {
-		f()
-		g.DecrementBusyCount()
+		f(task)
+		task.Done()
 	}()
 }
 ```
 
-The crucial thing here is that we increment the busy count _before_ spawning the goroutine, because it means that our counter never goes to zero while there's still work being done. If we incremented the busy count within the goroutine, the current function could exit and decrement the counter to zero before the goroutine starts.
+The crucial thing here is that we create the task _before_ spawning the goroutine, because it means that we'll have at least one busy task in the map until the completion of the goroutine. If we created the task within the goroutine, the current function could exit and Lazygit would be considered idle before the goroutine starts, leading to our integration test prematurely progressing.
 
-You typically invoke this with `self.c.OnWorker(f)`
+You typically invoke this with `self.c.OnWorker(f)`. Note that the callback function receives the task. This allows the callback to pause/continue the task (see below).
 
 ### Spawning a background goroutine
 
@@ -59,30 +59,20 @@ Where `utils.Safe` is a helper function that ensures we clean up the gui if the
 
 ### Programmatically enqueing a UI event
 
-This is invoked with `self.c.OnUIThread(f)`. Internally, it increments the counter before enqueuing the function as an event and once that event is processed by the event queue (and any other pending events are processed) the counter is decremented again.
+This is invoked with `self.c.OnUIThread(f)`. Internally, it creates a task before enqueuing the function as an event (including the task in the event struct) and once that event is processed by the event queue (and any other pending events are processed) the task is removed from the map by calling `task.Done()`.
 
 ### Pressing a key
 
-If the user presses a key, an event will be enqueued automatically and the counter will be incremented before (and decremented after) the event is processed.
+If the user presses a key, an event will be enqueued automatically and a task will be created before (and `Done`'d after) the event is processed.
 
 ## Special cases
 
-There are a couple of special cases where we manually increment/decrement the counter in the code. These are subject to change but for the sake of completeness:
+There are a couple of special cases where we manually pause/continue the task directly in the client code. These are subject to change but for the sake of completeness:
 
 ### Writing to the main view(s)
 
-If the user focuses a file in the files panel, we run a `git diff` command for that file and write the output to the main view. But we only read enough of the command's output to fill the view's viewport: further loading only happens if the user scrolls. Given that we have a background goroutine for running the command and writing more output upon scrolling, we manually increment the busy count within that goroutine and then decrement it once the viewport is filled.
+If the user focuses a file in the files panel, we run a `git diff` command for that file and write the output to the main view. But we only read enough of the command's output to fill the view's viewport: further loading only happens if the user scrolls. Given that we have a background goroutine for running the command and writing more output upon scrolling, we create our own task and call `Done` on it as soon as the viewport is filled.
 
 ### Requesting credentials from a git command
 
-Some git commands (e.g. git push) may request credentials. This is the same deal as above; we use a background goroutine and manually increment/decrement the counter as we go from waiting on the git command to waiting on user input.
-
-## Future improvements
-
-### Better API
-
-The current approach is fairly simple in terms of the API which, except for the special cases above, encapsulates the incrementing/decrementing of the busy counter. But the counter is a form of global state and in future we may switch to an API where we have objects representing a task in progress, and those objects have `Start()`, `Finish()`, and `Pause()` methods. This would better defend against bugs caused by a random goroutine accidentally decrementing twice, for example.
-
-### More applications
-
-We could use the concept of idle/busy to show a loader whenever Lazygit is busy. But our current situation is pretty good: we have the `WithWaitingStatus()` method for running a function on a worker goroutine along with a message to show within the loader e.g. 'Refreshing branches'. If we find a situation where we're a function is taking a while and a loader isn't appearing, that's because we're running the code on the UI goroutine and we should just wrap the code in `WithWaitingStatus()`.
+Some git commands (e.g. git push) may request credentials. This is the same deal as above; we use a worker goroutine and manually pause continue its task as we go from waiting on the git command to waiting on user input. This requires passing the task through to the `Push` method so that it can be paused/continued.

go.mod

@@ -18,7 +18,7 @@ require (
 	github.com/integrii/flaggy v1.4.0
 	github.com/jesseduffield/generics v0.0.0-20220320043834-727e535cbe68
 	github.com/jesseduffield/go-git/v5 v5.1.2-0.20221018185014-fdd53fef665d
-	github.com/jesseduffield/gocui v0.3.1-0.20230708122437-f7e1c7c16828
+	github.com/jesseduffield/gocui v0.3.1-0.20230709105400-44d9f78b4b52
 	github.com/jesseduffield/kill v0.0.0-20220618033138-bfbe04675d10
 	github.com/jesseduffield/lazycore v0.0.0-20221012050358-03d2e40243c5
 	github.com/jesseduffield/minimal/gitignore v0.3.3-0.20211018110810-9cde264e6b1e

go.sum

@@ -72,8 +72,8 @@ github.com/jesseduffield/generics v0.0.0-20220320043834-727e535cbe68 h1:EQP2Tv8T
 github.com/jesseduffield/generics v0.0.0-20220320043834-727e535cbe68/go.mod h1:+LLj9/WUPAP8LqCchs7P+7X0R98HiFujVFANdNaxhGk=
 github.com/jesseduffield/go-git/v5 v5.1.2-0.20221018185014-fdd53fef665d h1:bO+OmbreIv91rCe8NmscRwhFSqkDJtzWCPV4Y+SQuXE=
 github.com/jesseduffield/go-git/v5 v5.1.2-0.20221018185014-fdd53fef665d/go.mod h1:nGNEErzf+NRznT+N2SWqmHnDnF9aLgANB1CUNEan09o=
-github.com/jesseduffield/gocui v0.3.1-0.20230708122437-f7e1c7c16828 h1:1Eos/Z+6/JhXZ9qsniKpKqLsf/z7dSoP2EBfK7T2Mic=
-github.com/jesseduffield/gocui v0.3.1-0.20230708122437-f7e1c7c16828/go.mod h1:dJ/BEUt3OWtaRg/PmuJWendRqREhre9JQ1SLvqrVJ8s=
+github.com/jesseduffield/gocui v0.3.1-0.20230709105400-44d9f78b4b52 h1:rrKgkOAVJD5rgC6aoX3zWTSiSiHkuQBA2JW/r+v1eKE=
+github.com/jesseduffield/gocui v0.3.1-0.20230709105400-44d9f78b4b52/go.mod h1:dJ/BEUt3OWtaRg/PmuJWendRqREhre9JQ1SLvqrVJ8s=
 github.com/jesseduffield/kill v0.0.0-20220618033138-bfbe04675d10 h1:jmpr7KpX2+2GRiE91zTgfq49QvgiqB0nbmlwZ8UnOx0=
 github.com/jesseduffield/kill v0.0.0-20220618033138-bfbe04675d10/go.mod h1:aA97kHeNA+sj2Hbki0pvLslmE4CbDyhBeSSTUUnOuVo=
 github.com/jesseduffield/lazycore v0.0.0-20221012050358-03d2e40243c5 h1:CDuQmfOjAtb1Gms6a1p5L2P8RhbLUq5t8aL7PiQd2uY=

pkg/commands/git_commands/remote.go

@@ -2,6 +2,8 @@ package git_commands
 
 import (
 	"fmt"
+
+	"github.com/jesseduffield/gocui"
 )
 
 type RemoteCommands struct {
@@ -46,12 +48,12 @@ func (self *RemoteCommands) UpdateRemoteUrl(remoteName string, updatedUrl string
 	return self.cmd.New(cmdArgs).Run()
 }
 
-func (self *RemoteCommands) DeleteRemoteBranch(remoteName string, branchName string) error {
+func (self *RemoteCommands) DeleteRemoteBranch(task *gocui.Task, remoteName string, branchName string) error {
 	cmdArgs := NewGitCmd("push").
 		Arg(remoteName, "--delete", branchName).
 		ToArgv()
 
-	return self.cmd.New(cmdArgs).PromptOnCredentialRequest().WithMutex(self.syncMutex).Run()
+	return self.cmd.New(cmdArgs).PromptOnCredentialRequest(task).WithMutex(self.syncMutex).Run()
 }
 
 // CheckRemoteBranchExists Returns remote branch

pkg/commands/git_commands/sync.go

@@ -2,6 +2,7 @@ package git_commands
 
 import (
 	"github.com/go-errors/errors"
+	"github.com/jesseduffield/gocui"
 	"github.com/jesseduffield/lazygit/pkg/commands/oscommands"
 )
 
@@ -23,7 +24,7 @@ type PushOpts struct {
 	SetUpstream    bool
 }
 
-func (self *SyncCommands) PushCmdObj(opts PushOpts) (oscommands.ICmdObj, error) {
+func (self *SyncCommands) PushCmdObj(task *gocui.Task, opts PushOpts) (oscommands.ICmdObj, error) {
 	if opts.UpstreamBranch != "" && opts.UpstreamRemote == "" {
 		return nil, errors.New(self.Tr.MustSpecifyOriginError)
 	}
@@ -35,12 +36,12 @@ func (self *SyncCommands) PushCmdObj(opts PushOpts) (oscommands.ICmdObj, error)
 		ArgIf(opts.UpstreamBranch != "", opts.UpstreamBranch).
 		ToArgv()
 
-	cmdObj := self.cmd.New(cmdArgs).PromptOnCredentialRequest().WithMutex(self.syncMutex)
+	cmdObj := self.cmd.New(cmdArgs).PromptOnCredentialRequest(task).WithMutex(self.syncMutex)
 	return cmdObj, nil
 }
 
-func (self *SyncCommands) Push(opts PushOpts) error {
-	cmdObj, err := self.PushCmdObj(opts)
+func (self *SyncCommands) Push(task *gocui.Task, opts PushOpts) error {
+	cmdObj, err := self.PushCmdObj(task, opts)
 	if err != nil {
 		return err
 	}
@@ -48,28 +49,24 @@ func (self *SyncCommands) Push(opts PushOpts) error {
 	return cmdObj.Run()
 }
 
-type FetchOptions struct {
-	Background bool
-}
-
-// Fetch fetch git repo
-func (self *SyncCommands) FetchCmdObj(opts FetchOptions) oscommands.ICmdObj {
+func (self *SyncCommands) Fetch(task *gocui.Task) error {
 	cmdArgs := NewGitCmd("fetch").
 		ArgIf(self.UserConfig.Git.FetchAll, "--all").
 		ToArgv()
 
 	cmdObj := self.cmd.New(cmdArgs)
-	if opts.Background {
-		cmdObj.DontLog().FailOnCredentialRequest()
-	} else {
-		cmdObj.PromptOnCredentialRequest()
-	}
-	return cmdObj.WithMutex(self.syncMutex)
+	cmdObj.PromptOnCredentialRequest(task)
+	return cmdObj.WithMutex(self.syncMutex).Run()
 }
 
-func (self *SyncCommands) Fetch(opts FetchOptions) error {
-	cmdObj := self.FetchCmdObj(opts)
-	return cmdObj.Run()
+func (self *SyncCommands) FetchBackground() error {
+	cmdArgs := NewGitCmd("fetch").
+		ArgIf(self.UserConfig.Git.FetchAll, "--all").
+		ToArgv()
+
+	cmdObj := self.cmd.New(cmdArgs)
+	cmdObj.DontLog().FailOnCredentialRequest()
+	return cmdObj.WithMutex(self.syncMutex).Run()
 }
 
 type PullOptions struct {
@@ -78,7 +75,7 @@ type PullOptions struct {
 	FastForwardOnly bool
 }
 
-func (self *SyncCommands) Pull(opts PullOptions) error {
+func (self *SyncCommands) Pull(task *gocui.Task, opts PullOptions) error {
 	cmdArgs := NewGitCmd("pull").
 		Arg("--no-edit").
 		ArgIf(opts.FastForwardOnly, "--ff-only").
@@ -88,22 +85,22 @@ func (self *SyncCommands) Pull(opts PullOptions) error {
 
 	// setting GIT_SEQUENCE_EDITOR to ':' as a way of skipping it, in case the user
 	// has 'pull.rebase = interactive' configured.
-	return self.cmd.New(cmdArgs).AddEnvVars("GIT_SEQUENCE_EDITOR=:").PromptOnCredentialRequest().WithMutex(self.syncMutex).Run()
+	return self.cmd.New(cmdArgs).AddEnvVars("GIT_SEQUENCE_EDITOR=:").PromptOnCredentialRequest(task).WithMutex(self.syncMutex).Run()
 }
 
-func (self *SyncCommands) FastForward(branchName string, remoteName string, remoteBranchName string) error {
+func (self *SyncCommands) FastForward(task *gocui.Task, branchName string, remoteName string, remoteBranchName string) error {
 	cmdArgs := NewGitCmd("fetch").
 		Arg(remoteName).
 		Arg(remoteBranchName + ":" + branchName).
 		ToArgv()
 
-	return self.cmd.New(cmdArgs).PromptOnCredentialRequest().WithMutex(self.syncMutex).Run()
+	return self.cmd.New(cmdArgs).PromptOnCredentialRequest(task).WithMutex(self.syncMutex).Run()
 }
 
-func (self *SyncCommands) FetchRemote(remoteName string) error {
+func (self *SyncCommands) FetchRemote(task *gocui.Task, remoteName string) error {
 	cmdArgs := NewGitCmd("fetch").
 		Arg(remoteName).
 		ToArgv()
 
-	return self.cmd.New(cmdArgs).PromptOnCredentialRequest().WithMutex(self.syncMutex).Run()
+	return self.cmd.New(cmdArgs).PromptOnCredentialRequest(task).WithMutex(self.syncMutex).Run()
 }

pkg/commands/git_commands/tag.go

@@ -1,5 +1,7 @@
 package git_commands
 
+import "github.com/jesseduffield/gocui"
+
 type TagCommands struct {
 	*GitCommon
 }
@@ -34,9 +36,9 @@ func (self *TagCommands) Delete(tagName string) error {
 	return self.cmd.New(cmdArgs).Run()
 }
 
-func (self *TagCommands) Push(remoteName string, tagName string) error {
+func (self *TagCommands) Push(task *gocui.Task, remoteName string, tagName string) error {
 	cmdArgs := NewGitCmd("push").Arg(remoteName, "tag", tagName).
 		ToArgv()
 
-	return self.cmd.New(cmdArgs).PromptOnCredentialRequest().WithMutex(self.syncMutex).Run()
+	return self.cmd.New(cmdArgs).PromptOnCredentialRequest(task).WithMutex(self.syncMutex).Run()
 }

pkg/commands/oscommands/cmd_obj.go

@@ -4,6 +4,7 @@ import (
 	"os/exec"
 	"strings"
 
+	"github.com/jesseduffield/gocui"
 	"github.com/samber/lo"
 	"github.com/sasha-s/go-deadlock"
 )
@@ -56,13 +57,14 @@ type ICmdObj interface {
 	// returns true if IgnoreEmptyError() was called
 	ShouldIgnoreEmptyError() bool
 
-	PromptOnCredentialRequest() ICmdObj
+	PromptOnCredentialRequest(task *gocui.Task) ICmdObj
 	FailOnCredentialRequest() ICmdObj
 
 	WithMutex(mutex *deadlock.Mutex) ICmdObj
 	Mutex() *deadlock.Mutex
 
 	GetCredentialStrategy() CredentialStrategy
+	GetTask() *gocui.Task
 }
 
 type CmdObj struct {
@@ -85,6 +87,7 @@ type CmdObj struct {
 
 	// if set to true, it means we might be asked to enter a username/password by this command.
 	credentialStrategy CredentialStrategy
+	task               *gocui.Task
 
 	// can be set so that we don't run certain commands simultaneously
 	mutex *deadlock.Mutex
@@ -192,8 +195,9 @@ func (self *CmdObj) RunAndProcessLines(onLine func(line string) (bool, error)) e
 	return self.runner.RunAndProcessLines(self, onLine)
 }
 
-func (self *CmdObj) PromptOnCredentialRequest() ICmdObj {
+func (self *CmdObj) PromptOnCredentialRequest(task *gocui.Task) ICmdObj {
 	self.credentialStrategy = PROMPT
+	self.task = task
 
 	return self
 }
@@ -207,3 +211,7 @@ func (self *CmdObj) FailOnCredentialRequest() ICmdObj {
 func (self *CmdObj) GetCredentialStrategy() CredentialStrategy {
 	return self.credentialStrategy
 }
+
+func (self *CmdObj) GetTask() *gocui.Task {
+	return self.task
+}

pkg/commands/oscommands/cmd_obj_runner.go

@@ -8,6 +8,7 @@ import (
 	"strings"
 
 	"github.com/go-errors/errors"
+	"github.com/jesseduffield/gocui"
 	"github.com/jesseduffield/lazygit/pkg/utils"
 	"github.com/sirupsen/logrus"
 )
@@ -308,7 +309,7 @@ func (self *cmdObjRunner) runAndDetectCredentialRequest(
 		tr := io.TeeReader(handler.stdoutPipe, cmdWriter)
 
 		go utils.Safe(func() {
-			self.processOutput(tr, handler.stdinPipe, promptUserForCredential)
+			self.processOutput(tr, handler.stdinPipe, promptUserForCredential, cmdObj.GetTask())
 		})
 	})
 }
@@ -317,6 +318,7 @@ func (self *cmdObjRunner) processOutput(
 	reader io.Reader,
 	writer io.Writer,
 	promptUserForCredential func(CredentialType) <-chan string,
+	task *gocui.Task,
 ) {
 	checkForCredentialRequest := self.getCheckForCredentialRequestFunc()
 
@@ -327,13 +329,9 @@ func (self *cmdObjRunner) processOutput(
 		askFor, ok := checkForCredentialRequest(newBytes)
 		if ok {
 			responseChan := promptUserForCredential(askFor)
-			// We assume that the busy count is greater than zero here because we're
-			// in the middle of a command. We decrement it so that The user can be prompted
-			// without lazygit thinking it's still doing its own processing. This helps
-			// integration tests know how long to wait before typing in a response.
-			self.guiIO.DecrementBusyCount()
+			task.Pause()
 			toInput := <-responseChan
-			self.guiIO.IncrementBusyCount()
+			task.Continue()
 			// If the return data is empty we don't write anything to stdin
 			if toInput != "" {
 				_, _ = writer.Write([]byte(toInput))

pkg/commands/oscommands/gui_io.go

@@ -27,9 +27,6 @@ type guiIO struct {
 	// that a command requests it.
 	// the 'credential' arg is something like 'username' or 'password'
 	promptForCredentialFn func(credential CredentialType) <-chan string
-
-	IncrementBusyCount func()
-	DecrementBusyCount func()
 }
 
 func NewGuiIO(
@@ -37,16 +34,12 @@ func NewGuiIO(
 	logCommandFn func(string, bool),
 	newCmdWriterFn func() io.Writer,
 	promptForCredentialFn func(CredentialType) <-chan string,
-	IncrementBusyCount func(),
-	DecrementBusyCount func(),
 ) *guiIO {
 	return &guiIO{
 		log:                   log,
 		logCommandFn:          logCommandFn,
 		newCmdWriterFn:        newCmdWriterFn,
 		promptForCredentialFn: promptForCredentialFn,
-		IncrementBusyCount:    IncrementBusyCount,
-		DecrementBusyCount:    DecrementBusyCount,
 	}
 }
 
@@ -58,7 +51,5 @@ func NewNullGuiIO(log *logrus.Entry) *guiIO {
 		logCommandFn:          func(string, bool) {},
 		newCmdWriterFn:        func() io.Writer { return io.Discard },
 		promptForCredentialFn: failPromptFn,
-		IncrementBusyCount:    func() {},
-		DecrementBusyCount:    func() {},
 	}
 }

pkg/gui/background.go

@@ -4,7 +4,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/jesseduffield/lazygit/pkg/commands/git_commands"
+	"github.com/jesseduffield/gocui"
 	"github.com/jesseduffield/lazygit/pkg/gui/types"
 	"github.com/jesseduffield/lazygit/pkg/utils"
 )
@@ -86,7 +86,7 @@ func (self *BackgroundRoutineMgr) goEvery(interval time.Duration, stop chan stru
 				if self.pauseBackgroundRefreshes {
 					continue
 				}
-				self.gui.c.OnWorker(func() { _ = function() })
+				self.gui.c.OnWorker(func(*gocui.Task) { _ = function() })
 			case <-stop:
 				return
 			}
@@ -95,7 +95,7 @@ func (self *BackgroundRoutineMgr) goEvery(interval time.Duration, stop chan stru
 }
 
 func (self *BackgroundRoutineMgr) backgroundFetch() (err error) {
-	err = self.gui.git.Sync.Fetch(git_commands.FetchOptions{Background: true})
+	err = self.gui.git.Sync.FetchBackground()
 
 	_ = self.gui.c.Refresh(types.RefreshOptions{Scope: []types.RefreshableView{types.BRANCHES, types.COMMITS, types.REMOTES, types.TAGS}, Mode: types.ASYNC})
 

pkg/gui/controllers/branches_controller.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"strings"
 
+	"github.com/jesseduffield/gocui"
 	"github.com/jesseduffield/lazygit/pkg/commands/git_commands"
 	"github.com/jesseduffield/lazygit/pkg/commands/models"
 	"github.com/jesseduffield/lazygit/pkg/gui/context"
@@ -363,11 +364,12 @@ func (self *BranchesController) fastForward(branch *models.Branch) error {
 		},
 	)
 
-	return self.c.WithLoaderPanel(message, func() error {
+	return self.c.WithLoaderPanel(message, func(task *gocui.Task) error {
 		if branch == self.c.Helpers().Refs.GetCheckedOutRef() {
 			self.c.LogAction(action)
 
 			err := self.c.Git().Sync.Pull(
+				task,
 				git_commands.PullOptions{
 					RemoteName:      branch.UpstreamRemote,
 					BranchName:      branch.UpstreamBranch,
@@ -381,7 +383,7 @@ func (self *BranchesController) fastForward(branch *models.Branch) error {
 			return self.c.Refresh(types.RefreshOptions{Mode: types.ASYNC})
 		} else {
 			self.c.LogAction(action)
-			err := self.c.Git().Sync.FastForward(branch.Name, branch.UpstreamRemote, branch.UpstreamBranch)
+			err := self.c.Git().Sync.FastForward(task, branch.Name, branch.UpstreamRemote, branch.UpstreamBranch)
 			if err != nil {
 				_ = self.c.Error(err)
 			}

pkg/gui/controllers/commits_files_controller.go

@@ -177,7 +177,7 @@ func (self *CommitFilesController) discard(node *filetree.CommitFileNode) error
 		Title:  self.c.Tr.DiscardFileChangesTitle,
 		Prompt: prompt,
 		HandleConfirm: func() error {
-			return self.c.WithWaitingStatus(self.c.Tr.RebasingStatus, func() error {
+			return self.c.WithWaitingStatus(self.c.Tr.RebasingStatus, func(*gocui.Task) error {
 				self.c.LogAction(self.c.Tr.Actions.DiscardOldFileChange)
 				if err := self.c.Git().Rebase.DiscardOldFileChanges(self.c.Model().Commits, self.c.Contexts().LocalCommits.GetSelectedLineIdx(), node.GetPath()); err != nil {
 					if err := self.c.Helpers().MergeAndRebase.CheckMergeOrRebase(err); err != nil {
@@ -205,7 +205,7 @@ func (self *CommitFilesController) edit(node *filetree.CommitFileNode) error {
 
 func (self *CommitFilesController) toggleForPatch(node *filetree.CommitFileNode) error {
 	toggle := func() error {
-		return self.c.WithWaitingStatus(self.c.Tr.UpdatingPatch, func() error {
+		return self.c.WithWaitingStatus(self.c.Tr.UpdatingPatch, func(*gocui.Task) error {
 			if !self.c.Git().Patch.PatchBuilder.Active() {
 				if err := self.startPatchBuilder(); err != nil {
 					return err

pkg/gui/controllers/custom_patch_options_menu_action.go

@@ -3,6 +3,7 @@ package controllers
 import (
 	"fmt"
 
+	"github.com/jesseduffield/gocui"
 	"github.com/jesseduffield/lazygit/pkg/commands/types/enums"
 	"github.com/jesseduffield/lazygit/pkg/gui/types"
 )
@@ -116,7 +117,7 @@ func (self *CustomPatchOptionsMenuAction) handleDeletePatchFromCommit() error {
 		return err
 	}
 
-	return self.c.WithWaitingStatus(self.c.Tr.RebasingStatus, func() error {
+	return self.c.WithWaitingStatus(self.c.Tr.RebasingStatus, func(*gocui.Task) error {
 		commitIndex := self.getPatchCommitIndex()
 		self.c.LogAction(self.c.Tr.Actions.RemovePatchFromCommit)
 		err := self.c.Git().Patch.DeletePatchesFromCommit(self.c.Model().Commits, commitIndex)
@@ -133,7 +134,7 @@ func (self *CustomPatchOptionsMenuAction) handleMovePatchToSelectedCommit() erro
 		return err
 	}
 
-	return self.c.WithWaitingStatus(self.c.Tr.RebasingStatus, func() error {
+	return self.c.WithWaitingStatus(self.c.Tr.RebasingStatus, func(*gocui.Task) error {
 		commitIndex := self.getPatchCommitIndex()
 		self.c.LogAction(self.c.Tr.Actions.MovePatchToSelectedCommit)
 		err := self.c.Git().Patch.MovePatchToSelectedCommit(self.c.Model().Commits, commitIndex, self.c.Contexts().LocalCommits.GetSelectedLineIdx())
@@ -151,7 +152,7 @@ func (self *CustomPatchOptionsMenuAction) handleMovePatchIntoWorkingTree() error
 	}
 
 	pull := func(stash bool) error {
-		return self.c.WithWaitingStatus(self.c.Tr.RebasingStatus, func() error {
+		return self.c.WithWaitingStatus(self.c.Tr.RebasingStatus, func(*gocui.Task) error {
 			commitIndex := self.getPatchCommitIndex()
 			self.c.LogAction(self.c.Tr.Actions.MovePatchIntoIndex)
 			err := self.c.Git().Patch.MovePatchIntoIndex(self.c.Model().Commits, commitIndex, stash)
@@ -181,7 +182,7 @@ func (self *CustomPatchOptionsMenuAction) handlePullPatchIntoNewCommit() error {
 		return err
 	}
 
-	return self.c.WithWaitingStatus(self.c.Tr.RebasingStatus, func() error {
+	return self.c.WithWaitingStatus(self.c.Tr.RebasingStatus, func(*gocui.Task) error {
 		commitIndex := self.getPatchCommitIndex()
 		self.c.LogAction(self.c.Tr.Actions.MovePatchIntoNewCommit)
 		err := self.c.Git().Patch.PullPatchIntoNewCommit(self.c.Model().Commits, commitIndex)

pkg/gui/controllers/files_controller.go

@@ -4,7 +4,6 @@ import (
 	"strings"
 
 	"github.com/jesseduffield/gocui"
-	"github.com/jesseduffield/lazygit/pkg/commands/git_commands"
 	"github.com/jesseduffield/lazygit/pkg/commands/models"
 	"github.com/jesseduffield/lazygit/pkg/gui/context"
 	"github.com/jesseduffield/lazygit/pkg/gui/filetree"
@@ -801,17 +800,17 @@ func (self *FilesController) onClickSecondary(opts gocui.ViewMouseBindingOpts) e
 }
 
 func (self *FilesController) fetch() error {
-	return self.c.WithLoaderPanel(self.c.Tr.FetchWait, func() error {
-		if err := self.fetchAux(); err != nil {
+	return self.c.WithLoaderPanel(self.c.Tr.FetchWait, func(task *gocui.Task) error {
+		if err := self.fetchAux(task); err != nil {
 			_ = self.c.Error(err)
 		}
 		return self.c.Refresh(types.RefreshOptions{Mode: types.ASYNC})
 	})
 }
 
-func (self *FilesController) fetchAux() (err error) {
+func (self *FilesController) fetchAux(task *gocui.Task) (err error) {
 	self.c.LogAction("Fetch")
-	err = self.c.Git().Sync.Fetch(git_commands.FetchOptions{})
+	err = self.c.Git().Sync.Fetch(task)
 
 	if err != nil && strings.Contains(err.Error(), "exit status 128") {
 		_ = self.c.ErrorMsg(self.c.Tr.PassUnameWrong)

pkg/gui/controllers/files_remove_controller.go

@@ -1,6 +1,7 @@
 package controllers
 
 import (
+	"github.com/jesseduffield/gocui"
 	"github.com/jesseduffield/lazygit/pkg/commands/models"
 	"github.com/jesseduffield/lazygit/pkg/gui/context"
 	"github.com/jesseduffield/lazygit/pkg/gui/filetree"
@@ -145,7 +146,7 @@ func (self *FilesRemoveController) remove(node *filetree.FileNode) error {
 }
 
 func (self *FilesRemoveController) ResetSubmodule(submodule *models.SubmoduleConfig) error {
-	return self.c.WithWaitingStatus(self.c.Tr.ResettingSubmoduleStatus, func() error {
+	return self.c.WithWaitingStatus(self.c.Tr.ResettingSubmoduleStatus, func(*gocui.Task) error {
 		self.c.LogAction(self.c.Tr.Actions.ResetSubmodule)
 
 		file := self.c.Helpers().WorkingTree.FileForSubmodule(submodule)

pkg/gui/controllers/helpers/app_status_helper.go

@@ -3,6 +3,7 @@ package helpers
 import (
 	"time"
 
+	"github.com/jesseduffield/gocui"
 	"github.com/jesseduffield/lazygit/pkg/gui/status"
 )
 
@@ -26,12 +27,12 @@ func (self *AppStatusHelper) Toast(message string) {
 }
 
 // withWaitingStatus wraps a function and shows a waiting status while the function is still executing
-func (self *AppStatusHelper) WithWaitingStatus(message string, f func() error) {
-	self.c.OnWorker(func() {
+func (self *AppStatusHelper) WithWaitingStatus(message string, f func(*gocui.Task) error) {
+	self.c.OnWorker(func(task *gocui.Task) {
 		self.statusMgr().WithWaitingStatus(message, func() {
 			self.renderAppStatus()
 
-			if err := f(); err != nil {
+			if err := f(task); err != nil {
 				self.c.OnUIThread(func() error {
 					return self.c.Error(err)
 				})
@@ -49,7 +50,7 @@ func (self *AppStatusHelper) GetStatusString() string {
 }
 
 func (self *AppStatusHelper) renderAppStatus() {
-	self.c.OnWorker(func() {
+	self.c.OnWorker(func(_ *gocui.Task) {
 		ticker := time.NewTicker(time.Millisecond * 50)
 		defer ticker.Stop()
 		for range ticker.C {

pkg/gui/controllers/helpers/cherry_pick_helper.go

@@ -1,6 +1,7 @@
 package helpers
 
 import (
+	"github.com/jesseduffield/gocui"
 	"github.com/jesseduffield/lazygit/pkg/commands/models"
 	"github.com/jesseduffield/lazygit/pkg/gui/modes/cherrypicking"
 	"github.com/jesseduffield/lazygit/pkg/gui/types"
@@ -75,7 +76,7 @@ func (self *CherryPickHelper) Paste() error {
 		Title:  self.c.Tr.CherryPick,
 		Prompt: self.c.Tr.SureCherryPick,
 		HandleConfirm: func() error {
-			return self.c.WithWaitingStatus(self.c.Tr.CherryPickingStatus, func() error {
+			return self.c.WithWaitingStatus(self.c.Tr.CherryPickingStatus, func(*gocui.Task) error {
 				self.c.LogAction(self.c.Tr.Actions.CherryPick)
 				err := self.c.Git().Rebase.CherryPickCommits(self.getData().CherryPickedCommits)
 				return self.rebaseHelper.CheckMergeOrRebase(err)

pkg/gui/controllers/helpers/gpg_helper.go

@@ -3,6 +3,7 @@ package helpers
 import (
 	"fmt"
 
+	"github.com/jesseduffield/gocui"
 	"github.com/jesseduffield/lazygit/pkg/commands/oscommands"
 	"github.com/jesseduffield/lazygit/pkg/gui/types"
 )
@@ -41,7 +42,7 @@ func (self *GpgHelper) WithGpgHandling(cmdObj oscommands.ICmdObj, waitingStatus
 }
 
 func (self *GpgHelper) runAndStream(cmdObj oscommands.ICmdObj, waitingStatus string, onSuccess func() error) error {
-	return self.c.WithWaitingStatus(waitingStatus, func() error {
+	return self.c.WithWaitingStatus(waitingStatus, func(*gocui.Task) error {
 		if err := cmdObj.StreamOutput().Run(); err != nil {
 			_ = self.c.Refresh(types.RefreshOptions{Mode: types.ASYNC})
 			return self.c.Error(

pkg/gui/controllers/helpers/refresh_helper.go

@@ -7,6 +7,7 @@ import (
 
 	"github.com/jesseduffield/generics/set"
 	"github.com/jesseduffield/generics/slices"
+	"github.com/jesseduffield/gocui"
 	"github.com/jesseduffield/lazygit/pkg/commands/git_commands"
 	"github.com/jesseduffield/lazygit/pkg/commands/models"
 	"github.com/jesseduffield/lazygit/pkg/commands/types/enums"
@@ -86,7 +87,9 @@ func (self *RefreshHelper) Refresh(options types.RefreshOptions) error {
 
 		refresh := func(f func()) {
 			if options.Mode == types.ASYNC {
-				self.c.OnWorker(f)
+				self.c.OnWorker(func(t *gocui.Task) {
+					f()
+				})
 			} else {
 				f()
 			}
@@ -198,7 +201,7 @@ func getModeName(mode types.RefreshMode) string {
 func (self *RefreshHelper) refreshReflogCommitsConsideringStartup() {
 	switch self.c.State().GetRepoState().GetStartupStage() {
 	case types.INITIAL:
-		self.c.OnWorker(func() {
+		self.c.OnWorker(func(_ *gocui.Task) {
 			_ = self.refreshReflogCommits()
 			self.refreshBranches()
 			self.c.State().GetRepoState().SetStartupStage(types.COMPLETE)

pkg/gui/controllers/helpers/refs_helper.go

@@ -5,6 +5,7 @@ import (
 	"strings"
 
 	"github.com/jesseduffield/generics/slices"
+	"github.com/jesseduffield/gocui"
 	"github.com/jesseduffield/lazygit/pkg/commands/git_commands"
 	"github.com/jesseduffield/lazygit/pkg/commands/models"
 	"github.com/jesseduffield/lazygit/pkg/gui/style"
@@ -50,7 +51,7 @@ func (self *RefsHelper) CheckoutRef(ref string, options types.CheckoutRefOptions
 		self.c.Contexts().LocalCommits.SetLimitCommits(true)
 	}
 
-	return self.c.WithWaitingStatus(waitingStatus, func() error {
+	return self.c.WithWaitingStatus(waitingStatus, func(*gocui.Task) error {
 		if err := self.c.Git().Branch.Checkout(ref, cmdOptions); err != nil {
 			// note, this will only work for english-language git commands. If we force git to use english, and the error isn't this one, then the user will receive an english command they may not understand. I'm not sure what the best solution to this is. Running the command once in english and a second time in the native language is one option
 

pkg/gui/controllers/helpers/suggestions_helper.go

@@ -5,6 +5,7 @@ import (
 	"os"
 
 	"github.com/jesseduffield/generics/slices"
+	"github.com/jesseduffield/gocui"
 	"github.com/jesseduffield/lazygit/pkg/commands/models"
 	"github.com/jesseduffield/lazygit/pkg/gui/presentation"
 	"github.com/jesseduffield/lazygit/pkg/gui/types"
@@ -100,7 +101,7 @@ func (self *SuggestionsHelper) GetBranchNameSuggestionsFunc() func(string) []*ty
 // Notably, unlike other suggestion functions we're not showing all the options
 // if nothing has been typed because there'll be too much to display efficiently
 func (self *SuggestionsHelper) GetFilePathSuggestionsFunc() func(string) []*types.Suggestion {
-	_ = self.c.WithWaitingStatus(self.c.Tr.LoadingFileSuggestions, func() error {
+	_ = self.c.WithWaitingStatus(self.c.Tr.LoadingFileSuggestions, func(*gocui.Task) error {
 		trie := patricia.NewTrie()
 		// load every non-gitignored file in the repo
 		ignore, err := gitignore.FromGit()

pkg/gui/controllers/helpers/update_helper.go

@@ -1,6 +1,7 @@
 package helpers
 
 import (
+	"github.com/jesseduffield/gocui"
 	"github.com/jesseduffield/lazygit/pkg/gui/types"
 	"github.com/jesseduffield/lazygit/pkg/updates"
 	"github.com/jesseduffield/lazygit/pkg/utils"
@@ -37,7 +38,7 @@ func (self *UpdateHelper) CheckForUpdateInBackground() {
 }
 
 func (self *UpdateHelper) CheckForUpdateInForeground() error {
-	return self.c.WithWaitingStatus(self.c.Tr.CheckingForUpdates, func() error {
+	return self.c.WithWaitingStatus(self.c.Tr.CheckingForUpdates, func(*gocui.Task) error {
 		self.updater.CheckForNewUpdate(func(newVersion string, err error) error {
 			if err != nil {
 				return self.c.Error(err)
@@ -53,7 +54,7 @@ func (self *UpdateHelper) CheckForUpdateInForeground() error {
 }
 
 func (self *UpdateHelper) startUpdating(newVersion string) {
-	_ = self.c.WithWaitingStatus(self.c.Tr.UpdateInProgressWaitingStatus, func() error {
+	_ = self.c.WithWaitingStatus(self.c.Tr.UpdateInProgressWaitingStatus, func(*gocui.Task) error {
 		self.c.State().SetUpdating(true)
 		err := self.updater.Update(newVersion)
 		return self.onUpdateFinish(err)

pkg/gui/controllers/local_commits_controller.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 
 	"github.com/fsmiamoto/git-todo-parser/todo"
+	"github.com/jesseduffield/gocui"
 	"github.com/jesseduffield/lazygit/pkg/commands/models"
 	"github.com/jesseduffield/lazygit/pkg/commands/types/enums"
 	"github.com/jesseduffield/lazygit/pkg/gui/context"
@@ -217,7 +218,7 @@ func (self *LocalCommitsController) squashDown(commit *models.Commit) error {
 		Title:  self.c.Tr.Squash,
 		Prompt: self.c.Tr.SureSquashThisCommit,
 		HandleConfirm: func() error {
-			return self.c.WithWaitingStatus(self.c.Tr.SquashingStatus, func() error {
+			return self.c.WithWaitingStatus(self.c.Tr.SquashingStatus, func(*gocui.Task) error {
 				self.c.LogAction(self.c.Tr.Actions.SquashCommitDown)
 				return self.interactiveRebase(todo.Squash)
 			})
@@ -242,7 +243,7 @@ func (self *LocalCommitsController) fixup(commit *models.Commit) error {
 		Title:  self.c.Tr.Fixup,
 		Prompt: self.c.Tr.SureFixupThisCommit,
 		HandleConfirm: func() error {
-			return self.c.WithWaitingStatus(self.c.Tr.FixingStatus, func() error {
+			return self.c.WithWaitingStatus(self.c.Tr.FixingStatus, func(*gocui.Task) error {
 				self.c.LogAction(self.c.Tr.Actions.FixupCommit)
 				return self.interactiveRebase(todo.Fixup)
 			})
@@ -338,7 +339,7 @@ func (self *LocalCommitsController) drop(commit *models.Commit) error {
 		Title:  self.c.Tr.DeleteCommitTitle,
 		Prompt: self.c.Tr.DeleteCommitPrompt,
 		HandleConfirm: func() error {
-			return self.c.WithWaitingStatus(self.c.Tr.DeletingStatus, func() error {
+			return self.c.WithWaitingStatus(self.c.Tr.DeletingStatus, func(*gocui.Task) error {
 				self.c.LogAction(self.c.Tr.Actions.DropCommit)
 				return self.interactiveRebase(todo.Drop)
 			})
@@ -355,7 +356,7 @@ func (self *LocalCommitsController) edit(commit *models.Commit) error {
 		return nil
 	}
 
-	return self.c.WithWaitingStatus(self.c.Tr.RebasingStatus, func() error {
+	return self.c.WithWaitingStatus(self.c.Tr.RebasingStatus, func(*gocui.Task) error {
 		self.c.LogAction(self.c.Tr.Actions.EditCommit)
 		err := self.c.Git().Rebase.EditRebase(commit.Sha)
 		return self.c.Helpers().MergeAndRebase.CheckMergeOrRebase(err)
@@ -460,7 +461,7 @@ func (self *LocalCommitsController) moveDown(commit *models.Commit) error {
 		return self.c.ErrorMsg(self.c.Tr.AlreadyRebasing)
 	}
 
-	return self.c.WithWaitingStatus(self.c.Tr.MovingStatus, func() error {
+	return self.c.WithWaitingStatus(self.c.Tr.MovingStatus, func(*gocui.Task) error {
 		self.c.LogAction(self.c.Tr.Actions.MoveCommitDown)
 		err := self.c.Git().Rebase.MoveCommitDown(self.c.Model().Commits, index)
 		if err == nil {
@@ -498,7 +499,7 @@ func (self *LocalCommitsController) moveUp(commit *models.Commit) error {
 		return self.c.ErrorMsg(self.c.Tr.AlreadyRebasing)
 	}
 
-	return self.c.WithWaitingStatus(self.c.Tr.MovingStatus, func() error {
+	return self.c.WithWaitingStatus(self.c.Tr.MovingStatus, func(*gocui.Task) error {
 		self.c.LogAction(self.c.Tr.Actions.MoveCommitUp)
 		err := self.c.Git().Rebase.MoveCommitUp(self.c.Model().Commits, index)
 		if err == nil {
@@ -524,7 +525,7 @@ func (self *LocalCommitsController) amendTo(commit *models.Commit) error {
 		Title:  self.c.Tr.AmendCommitTitle,
 		Prompt: self.c.Tr.AmendCommitPrompt,
 		HandleConfirm: func() error {
-			return self.c.WithWaitingStatus(self.c.Tr.AmendingStatus, func() error {
+			return self.c.WithWaitingStatus(self.c.Tr.AmendingStatus, func(*gocui.Task) error {
 				self.c.LogAction(self.c.Tr.Actions.AmendCommit)
 				err := self.c.Git().Rebase.AmendTo(self.c.Model().Commits, self.context().GetView().SelectedLineIdx())
 				return self.c.Helpers().MergeAndRebase.CheckMergeOrRebase(err)
@@ -558,7 +559,7 @@ func (self *LocalCommitsController) amendAttribute(commit *models.Commit) error
 }
 
 func (self *LocalCommitsController) resetAuthor() error {
-	return self.c.WithWaitingStatus(self.c.Tr.AmendingStatus, func() error {
+	return self.c.WithWaitingStatus(self.c.Tr.AmendingStatus, func(*gocui.Task) error {
 		self.c.LogAction(self.c.Tr.Actions.ResetCommitAuthor)
 		if err := self.c.Git().Rebase.ResetCommitAuthor(self.c.Model().Commits, self.context().GetSelectedLineIdx()); err != nil {
 			return self.c.Error(err)
@@ -573,7 +574,7 @@ func (self *LocalCommitsController) setAuthor() error {
 		Title:               self.c.Tr.SetAuthorPromptTitle,
 		FindSuggestionsFunc: self.c.Helpers().Suggestions.GetAuthorsSuggestionsFunc(),
 		HandleConfirm: func(value string) error {
-			return self.c.WithWaitingStatus(self.c.Tr.AmendingStatus, func() error {
+			return self.c.WithWaitingStatus(self.c.Tr.AmendingStatus, func(*gocui.Task) error {
 				self.c.LogAction(self.c.Tr.Actions.SetCommitAuthor)
 				if err := self.c.Git().Rebase.SetCommitAuthor(self.c.Model().Commits, self.context().GetSelectedLineIdx(), value); err != nil {
 					return self.c.Error(err)
@@ -671,7 +672,7 @@ func (self *LocalCommitsController) squashAllAboveFixupCommits(commit *models.Co
 		Title:  self.c.Tr.SquashAboveCommits,
 		Prompt: prompt,
 		HandleConfirm: func() error {
-			return self.c.WithWaitingStatus(self.c.Tr.SquashingStatus, func() error {
+			return self.c.WithWaitingStatus(self.c.Tr.SquashingStatus, func(*gocui.Task) error {
 				self.c.LogAction(self.c.Tr.Actions.SquashAllAboveFixupCommits)
 				err := self.c.Git().Rebase.SquashAllAboveFixupCommits(commit)
 				return self.c.Helpers().MergeAndRebase.CheckMergeOrRebase(err)
@@ -723,7 +724,7 @@ func (self *LocalCommitsController) handleOpenLogMenu() error {
 						self.context().SetLimitCommits(false)
 					}
 
-					return self.c.WithWaitingStatus(self.c.Tr.LoadingCommits, func() error {
+					return self.c.WithWaitingStatus(self.c.Tr.LoadingCommits, func(*gocui.Task) error {
 						return self.c.Refresh(
 							types.RefreshOptions{Mode: types.SYNC, Scope: []types.RefreshableView{types.COMMITS}},
 						)
@@ -766,7 +767,7 @@ func (self *LocalCommitsController) handleOpenLogMenu() error {
 					onPress := func(value string) func() error {
 						return func() error {
 							self.c.UserConfig.Git.Log.Order = value
-							return self.c.WithWaitingStatus(self.c.Tr.LoadingCommits, func() error {
+							return self.c.WithWaitingStatus(self.c.Tr.LoadingCommits, func(*gocui.Task) error {
 								return self.c.Refresh(
 									types.RefreshOptions{
 										Mode:  types.SYNC,
@@ -816,7 +817,7 @@ func (self *LocalCommitsController) GetOnFocus() func(types.OnFocusOpts) error {
 		context := self.context()
 		if context.GetSelectedLineIdx() > COMMIT_THRESHOLD && context.GetLimitCommits() {
 			context.SetLimitCommits(false)
-			self.c.OnWorker(func() {
+			self.c.OnWorker(func(_ *gocui.Task) {
 				if err := self.c.Refresh(types.RefreshOptions{Scope: []types.RefreshableView{types.COMMITS}}); err != nil {
 					_ = self.c.Error(err)
 				}

pkg/gui/controllers/remote_branches_controller.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"strings"
 
+	"github.com/jesseduffield/gocui"
 	"github.com/jesseduffield/lazygit/pkg/commands/models"
 	"github.com/jesseduffield/lazygit/pkg/gui/context"
 	"github.com/jesseduffield/lazygit/pkg/gui/types"
@@ -117,9 +118,9 @@ func (self *RemoteBranchesController) delete(selectedBranch *models.RemoteBranch
 		Title:  self.c.Tr.DeleteRemoteBranch,
 		Prompt: message,
 		HandleConfirm: func() error {
-			return self.c.WithWaitingStatus(self.c.Tr.DeletingStatus, func() error {
+			return self.c.WithWaitingStatus(self.c.Tr.DeletingStatus, func(task *gocui.Task) error {
 				self.c.LogAction(self.c.Tr.Actions.DeleteRemoteBranch)
-				err := self.c.Git().Remote.DeleteRemoteBranch(selectedBranch.RemoteName, selectedBranch.Name)
+				err := self.c.Git().Remote.DeleteRemoteBranch(task, selectedBranch.RemoteName, selectedBranch.Name)
 				if err != nil {
 					_ = self.c.Error(err)
 				}

pkg/gui/controllers/remotes_controller.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"strings"
 
+	"github.com/jesseduffield/gocui"
 	"github.com/jesseduffield/lazygit/pkg/commands/models"
 	"github.com/jesseduffield/lazygit/pkg/gui/context"
 	"github.com/jesseduffield/lazygit/pkg/gui/style"
@@ -197,8 +198,8 @@ func (self *RemotesController) edit(remote *models.Remote) error {
 }
 
 func (self *RemotesController) fetch(remote *models.Remote) error {
-	return self.c.WithWaitingStatus(self.c.Tr.FetchingRemoteStatus, func() error {
-		err := self.c.Git().Sync.FetchRemote(remote.Name)
+	return self.c.WithWaitingStatus(self.c.Tr.FetchingRemoteStatus, func(task *gocui.Task) error {
+		err := self.c.Git().Sync.FetchRemote(task, remote.Name)
 		if err != nil {
 			_ = self.c.Error(err)
 		}

pkg/gui/controllers/sub_commits_controller.go

@@ -1,6 +1,7 @@
 package controllers
 
 import (
+	"github.com/jesseduffield/gocui"
 	"github.com/jesseduffield/lazygit/pkg/gui/context"
 	"github.com/jesseduffield/lazygit/pkg/gui/types"
 )
@@ -59,7 +60,7 @@ func (self *SubCommitsController) GetOnFocus() func(types.OnFocusOpts) error {
 		context := self.context()
 		if context.GetSelectedLineIdx() > COMMIT_THRESHOLD && context.GetLimitCommits() {
 			context.SetLimitCommits(false)
-			self.c.OnWorker(func() {
+			self.c.OnWorker(func(_ *gocui.Task) {
 				if err := self.c.Refresh(types.RefreshOptions{Scope: []types.RefreshableView{types.SUB_COMMITS}}); err != nil {
 					_ = self.c.Error(err)
 				}

pkg/gui/controllers/submodules_controller.go

@@ -5,6 +5,7 @@ import (
 	"path/filepath"
 	"strings"
 
+	"github.com/jesseduffield/gocui"
 	"github.com/jesseduffield/lazygit/pkg/commands/models"
 	"github.com/jesseduffield/lazygit/pkg/gui/context"
 	"github.com/jesseduffield/lazygit/pkg/gui/style"
@@ -130,7 +131,7 @@ func (self *SubmodulesController) add() error {
 						Title:          self.c.Tr.NewSubmodulePath,
 						InitialContent: submoduleName,
 						HandleConfirm: func(submodulePath string) error {
-							return self.c.WithWaitingStatus(self.c.Tr.AddingSubmoduleStatus, func() error {
+							return self.c.WithWaitingStatus(self.c.Tr.AddingSubmoduleStatus, func(*gocui.Task) error {
 								self.c.LogAction(self.c.Tr.Actions.AddSubmodule)
 								err := self.c.Git().Submodule.Add(submoduleName, submodulePath, submoduleUrl)
 								if err != nil {
@@ -152,7 +153,7 @@ func (self *SubmodulesController) editURL(submodule *models.SubmoduleConfig) err
 		Title:          fmt.Sprintf(self.c.Tr.UpdateSubmoduleUrl, submodule.Name),
 		InitialContent: submodule.Url,
 		HandleConfirm: func(newUrl string) error {
-			return self.c.WithWaitingStatus(self.c.Tr.UpdatingSubmoduleUrlStatus, func() error {
+			return self.c.WithWaitingStatus(self.c.Tr.UpdatingSubmoduleUrlStatus, func(*gocui.Task) error {
 				self.c.LogAction(self.c.Tr.Actions.UpdateSubmoduleUrl)
 				err := self.c.Git().Submodule.UpdateUrl(submodule.Name, submodule.Path, newUrl)
 				if err != nil {
@@ -166,7 +167,7 @@ func (self *SubmodulesController) editURL(submodule *models.SubmoduleConfig) err
 }
 
 func (self *SubmodulesController) init(submodule *models.SubmoduleConfig) error {
-	return self.c.WithWaitingStatus(self.c.Tr.InitializingSubmoduleStatus, func() error {
+	return self.c.WithWaitingStatus(self.c.Tr.InitializingSubmoduleStatus, func(*gocui.Task) error {
 		self.c.LogAction(self.c.Tr.Actions.InitialiseSubmodule)
 		err := self.c.Git().Submodule.Init(submodule.Path)
 		if err != nil {
@@ -184,7 +185,7 @@ func (self *SubmodulesController) openBulkActionsMenu() error {
 			{
 				LabelColumns: []string{self.c.Tr.BulkInitSubmodules, style.FgGreen.Sprint(self.c.Git().Submodule.BulkInitCmdObj().ToString())},
 				OnPress: func() error {
-					return self.c.WithWaitingStatus(self.c.Tr.RunningCommand, func() error {
+					return self.c.WithWaitingStatus(self.c.Tr.RunningCommand, func(*gocui.Task) error {
 						self.c.LogAction(self.c.Tr.Actions.BulkInitialiseSubmodules)
 						err := self.c.Git().Submodule.BulkInitCmdObj().Run()
 						if err != nil {
@@ -199,7 +200,7 @@ func (self *SubmodulesController) openBulkActionsMenu() error {
 			{
 				LabelColumns: []string{self.c.Tr.BulkUpdateSubmodules, style.FgYellow.Sprint(self.c.Git().Submodule.BulkUpdateCmdObj().ToString())},
 				OnPress: func() error {
-					return self.c.WithWaitingStatus(self.c.Tr.RunningCommand, func() error {
+					return self.c.WithWaitingStatus(self.c.Tr.RunningCommand, func(*gocui.Task) error {
 						self.c.LogAction(self.c.Tr.Actions.BulkUpdateSubmodules)
 						if err := self.c.Git().Submodule.BulkUpdateCmdObj().Run(); err != nil {
 							return self.c.Error(err)
@@ -213,7 +214,7 @@ func (self *SubmodulesController) openBulkActionsMenu() error {
 			{
 				LabelColumns: []string{self.c.Tr.BulkDeinitSubmodules, style.FgRed.Sprint(self.c.Git().Submodule.BulkDeinitCmdObj().ToString())},
 				OnPress: func() error {
-					return self.c.WithWaitingStatus(self.c.Tr.RunningCommand, func() error {
+					return self.c.WithWaitingStatus(self.c.Tr.RunningCommand, func(*gocui.Task) error {
 						self.c.LogAction(self.c.Tr.Actions.BulkDeinitialiseSubmodules)
 						if err := self.c.Git().Submodule.BulkDeinitCmdObj().Run(); err != nil {
 							return self.c.Error(err)
@@ -229,7 +230,7 @@ func (self *SubmodulesController) openBulkActionsMenu() error {
 }
 
 func (self *SubmodulesController) update(submodule *models.SubmoduleConfig) error {
-	return self.c.WithWaitingStatus(self.c.Tr.UpdatingSubmoduleStatus, func() error {
+	return self.c.WithWaitingStatus(self.c.Tr.UpdatingSubmoduleStatus, func(*gocui.Task) error {
 		self.c.LogAction(self.c.Tr.Actions.UpdateSubmodule)
 		err := self.c.Git().Submodule.Update(submodule.Path)
 		if err != nil {

pkg/gui/controllers/sync_controller.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"strings"
 
+	"github.com/jesseduffield/gocui"
 	"github.com/jesseduffield/lazygit/pkg/commands/git_commands"
 	"github.com/jesseduffield/lazygit/pkg/commands/models"
 	"github.com/jesseduffield/lazygit/pkg/gui/types"
@@ -138,15 +139,16 @@ type PullFilesOptions struct {
 }
 
 func (self *SyncController) PullAux(opts PullFilesOptions) error {
-	return self.c.WithLoaderPanel(self.c.Tr.PullWait, func() error {
-		return self.pullWithLock(opts)
+	return self.c.WithLoaderPanel(self.c.Tr.PullWait, func(task *gocui.Task) error {
+		return self.pullWithLock(task, opts)
 	})
 }
 
-func (self *SyncController) pullWithLock(opts PullFilesOptions) error {
+func (self *SyncController) pullWithLock(task *gocui.Task, opts PullFilesOptions) error {
 	self.c.LogAction(opts.Action)
 
 	err := self.c.Git().Sync.Pull(
+		task,
 		git_commands.PullOptions{
 			RemoteName:      opts.UpstreamRemote,
 			BranchName:      opts.UpstreamBranch,
@@ -165,14 +167,16 @@ type pushOpts struct {
 }
 
 func (self *SyncController) pushAux(opts pushOpts) error {
-	return self.c.WithLoaderPanel(self.c.Tr.PushWait, func() error {
+	return self.c.WithLoaderPanel(self.c.Tr.PushWait, func(task *gocui.Task) error {
 		self.c.LogAction(self.c.Tr.Actions.Push)
-		err := self.c.Git().Sync.Push(git_commands.PushOpts{
-			Force:          opts.force,
-			UpstreamRemote: opts.upstreamRemote,
-			UpstreamBranch: opts.upstreamBranch,
-			SetUpstream:    opts.setUpstream,
-		})
+		err := self.c.Git().Sync.Push(
+			task,
+			git_commands.PushOpts{
+				Force:          opts.force,
+				UpstreamRemote: opts.upstreamRemote,
+				UpstreamBranch: opts.upstreamBranch,
+				SetUpstream:    opts.setUpstream,
+			})
 		if err != nil {
 			if !opts.force && strings.Contains(err.Error(), "Updates were rejected") {
 				forcePushDisabled := self.c.UserConfig.Git.DisableForcePushing

pkg/gui/controllers/tags_controller.go

@@ -1,6 +1,7 @@
 package controllers
 
 import (
+	"github.com/jesseduffield/gocui"
 	"github.com/jesseduffield/lazygit/pkg/commands/models"
 	"github.com/jesseduffield/lazygit/pkg/gui/context"
 	"github.com/jesseduffield/lazygit/pkg/gui/types"
@@ -121,9 +122,9 @@ func (self *TagsController) push(tag *models.Tag) error {
 		InitialContent:      "origin",
 		FindSuggestionsFunc: self.c.Helpers().Suggestions.GetRemoteSuggestionsFunc(),
 		HandleConfirm: func(response string) error {
-			return self.c.WithWaitingStatus(self.c.Tr.PushingTagStatus, func() error {
+			return self.c.WithWaitingStatus(self.c.Tr.PushingTagStatus, func(task *gocui.Task) error {
 				self.c.LogAction(self.c.Tr.Actions.PushTag)
-				err := self.c.Git().Tag.Push(response, tag.Name)
+				err := self.c.Git().Tag.Push(task, response, tag.Name)
 				if err != nil {
 					_ = self.c.Error(err)
 				}

pkg/gui/controllers/undo_controller.go

@@ -3,6 +3,7 @@ package controllers
 import (
 	"fmt"
 
+	"github.com/jesseduffield/gocui"
 	"github.com/jesseduffield/lazygit/pkg/commands/types/enums"
 	"github.com/jesseduffield/lazygit/pkg/gui/types"
 	"github.com/jesseduffield/lazygit/pkg/utils"
@@ -247,7 +248,7 @@ func (self *UndoController) hardResetWithAutoStash(commitSha string, options har
 			Title:  self.c.Tr.AutoStashTitle,
 			Prompt: self.c.Tr.AutoStashPrompt,
 			HandleConfirm: func() error {
-				return self.c.WithWaitingStatus(options.WaitingStatus, func() error {
+				return self.c.WithWaitingStatus(options.WaitingStatus, func(*gocui.Task) error {
 					if err := self.c.Git().Stash.Save(self.c.Tr.StashPrefix + commitSha); err != nil {
 						return self.c.Error(err)
 					}
@@ -268,7 +269,7 @@ func (self *UndoController) hardResetWithAutoStash(commitSha string, options har
 		})
 	}
 
-	return self.c.WithWaitingStatus(options.WaitingStatus, func() error {
+	return self.c.WithWaitingStatus(options.WaitingStatus, func(*gocui.Task) error {
 		return reset()
 	})
 }

pkg/gui/gui.go

@@ -472,10 +472,10 @@ func NewGui(
 		func() error { return gui.State.ContextMgr.Pop() },
 		func() types.Context { return gui.State.ContextMgr.Current() },
 		gui.createMenu,
-		func(message string, f func() error) { gui.helpers.AppStatus.WithWaitingStatus(message, f) },
+		func(message string, f func(*gocui.Task) error) { gui.helpers.AppStatus.WithWaitingStatus(message, f) },
 		func(message string) { gui.helpers.AppStatus.Toast(message) },
 		func() string { return gui.Views.Confirmation.TextArea.GetContent() },
-		func(f func()) { gui.c.OnWorker(f) },
+		func(f func(*gocui.Task)) { gui.c.OnWorker(f) },
 	)
 
 	guiCommon := &guiCommon{gui: gui, IPopupHandler: gui.PopupHandler}
@@ -488,8 +488,6 @@ func NewGui(
 		gui.LogCommand,
 		gui.getCmdWriter,
 		credentialsHelper.PromptUserForCredential,
-		func() { gui.g.IncrementBusyCount() },
-		func() { gui.g.DecrementBusyCount() },
 	)
 
 	osCommand := oscommands.NewOSCommand(cmn, config, oscommands.GetPlatform(), guiIO)
@@ -786,15 +784,15 @@ func (gui *Gui) showInitialPopups(tasks []func(chan struct{}) error) {
 	gui.waitForIntro.Add(len(tasks))
 	done := make(chan struct{})
 
-	gui.c.OnWorker(func() {
+	gui.c.OnWorker(func(gocuiTask *gocui.Task) {
 		for _, task := range tasks {
 			if err := task(done); err != nil {
 				_ = gui.c.Error(err)
 			}
 
-			gui.g.DecrementBusyCount()
+			gocuiTask.Pause()
 			<-done
-			gui.g.IncrementBusyCount()
+			gocuiTask.Continue()
 			gui.waitForIntro.Done()
 		}
 	})
@@ -835,7 +833,7 @@ func (gui *Gui) onUIThread(f func() error) {
 	})
 }
 
-func (gui *Gui) onWorker(f func()) {
+func (gui *Gui) onWorker(f func(*gocui.Task)) {
 	gui.g.OnWorker(f)
 }
 

pkg/gui/gui_common.go

@@ -136,7 +136,7 @@ func (self *guiCommon) OnUIThread(f func() error) {
 	self.gui.onUIThread(f)
 }
 
-func (self *guiCommon) OnWorker(f func()) {
+func (self *guiCommon) OnWorker(f func(*gocui.Task)) {
 	self.gui.onWorker(f)
 }
 

pkg/gui/popup/fake_popup_handler.go

@@ -1,6 +1,9 @@
 package popup
 
-import "github.com/jesseduffield/lazygit/pkg/gui/types"
+import (
+	"github.com/jesseduffield/gocui"
+	"github.com/jesseduffield/lazygit/pkg/gui/types"
+)
 
 type FakePopupHandler struct {
 	OnErrorMsg func(message string) error
@@ -30,12 +33,12 @@ func (self *FakePopupHandler) Prompt(opts types.PromptOpts) error {
 	return self.OnPrompt(opts)
 }
 
-func (self *FakePopupHandler) WithLoaderPanel(message string, f func() error) error {
-	return f()
+func (self *FakePopupHandler) WithLoaderPanel(message string, f func(*gocui.Task) error) error {
+	return f(&gocui.Task{})
 }
 
-func (self *FakePopupHandler) WithWaitingStatus(message string, f func() error) error {
-	return f()
+func (self *FakePopupHandler) WithWaitingStatus(message string, f func(*gocui.Task) error) error {
+	return f(&gocui.Task{})
 }
 
 func (self *FakePopupHandler) Menu(opts types.CreateMenuOptions) error {

pkg/gui/popup/popup_handler.go

@@ -21,10 +21,10 @@ type PopupHandler struct {
 	popContextFn        func() error
 	currentContextFn    func() types.Context
 	createMenuFn        func(types.CreateMenuOptions) error
-	withWaitingStatusFn func(message string, f func() error)
+	withWaitingStatusFn func(message string, f func(*gocui.Task) error)
 	toastFn             func(message string)
 	getPromptInputFn    func() string
-	onWorker            func(func())
+	onWorker            func(func(*gocui.Task))
 }
 
 var _ types.IPopupHandler = &PopupHandler{}
@@ -36,10 +36,10 @@ func NewPopupHandler(
 	popContextFn func() error,
 	currentContextFn func() types.Context,
 	createMenuFn func(types.CreateMenuOptions) error,
-	withWaitingStatusFn func(message string, f func() error),
+	withWaitingStatusFn func(message string, f func(*gocui.Task) error),
 	toastFn func(message string),
 	getPromptInputFn func() string,
-	onWorker func(func()),
+	onWorker func(func(*gocui.Task)),
 ) *PopupHandler {
 	return &PopupHandler{
 		Common:              common,
@@ -64,7 +64,7 @@ func (self *PopupHandler) Toast(message string) {
 	self.toastFn(message)
 }
 
-func (self *PopupHandler) WithWaitingStatus(message string, f func() error) error {
+func (self *PopupHandler) WithWaitingStatus(message string, f func(*gocui.Task) error) error {
 	self.withWaitingStatusFn(message, f)
 	return nil
 }
@@ -124,7 +124,7 @@ func (self *PopupHandler) Prompt(opts types.PromptOpts) error {
 	})
 }
 
-func (self *PopupHandler) WithLoaderPanel(message string, f func() error) error {
+func (self *PopupHandler) WithLoaderPanel(message string, f func(*gocui.Task) error) error {
 	index := 0
 	self.Lock()
 	self.index++
@@ -143,8 +143,8 @@ func (self *PopupHandler) WithLoaderPanel(message string, f func() error) error
 		return nil
 	}
 
-	self.onWorker(func() {
-		if err := f(); err != nil {
+	self.onWorker(func(task *gocui.Task) {
+		if err := f(task); err != nil {
 			self.Log.Error(err)
 		}
 

pkg/gui/services/custom_commands/handler_creator.go

@@ -6,6 +6,7 @@ import (
 	"text/template"
 
 	"github.com/jesseduffield/generics/slices"
+	"github.com/jesseduffield/gocui"
 	"github.com/jesseduffield/lazygit/pkg/config"
 	"github.com/jesseduffield/lazygit/pkg/gui/controllers/helpers"
 	"github.com/jesseduffield/lazygit/pkg/gui/style"
@@ -264,7 +265,7 @@ func (self *HandlerCreator) finalHandler(customCommand config.CustomCommand, ses
 		loadingText = self.c.Tr.RunningCustomCommandStatus
 	}
 
-	return self.c.WithWaitingStatus(loadingText, func() error {
+	return self.c.WithWaitingStatus(loadingText, func(*gocui.Task) error {
 		self.c.LogAction(self.c.Tr.Actions.CustomCommand)
 
 		if customCommand.Stream {

pkg/gui/tasks_adapter.go

@@ -130,8 +130,9 @@ func (gui *Gui) getManager(view *gocui.View) *tasks.ViewBufferManager {
 			func() {
 				_ = view.SetOrigin(0, 0)
 			},
-			gui.c.GocuiGui().IncrementBusyCount,
-			gui.c.GocuiGui().DecrementBusyCount,
+			func() *gocui.Task {
+				return gui.c.GocuiGui().NewTask()
+			},
 		)
 		gui.viewBufferManagerMap[view.Name()] = manager
 	}

pkg/gui/types/common.go

@@ -79,7 +79,7 @@ type IGuiCommon interface {
 	OnUIThread(f func() error)
 	// Runs a function in a goroutine. Use this whenever you want to run a goroutine and keep track of the fact
 	// that lazygit is still busy. See docs/dev/Busy.md
-	OnWorker(f func())
+	OnWorker(f func(*gocui.Task))
 
 	// returns the gocui Gui struct. There is a good chance you don't actually want to use
 	// this struct and instead want to use another method above
@@ -121,8 +121,8 @@ type IPopupHandler interface {
 	Confirm(opts ConfirmOpts) error
 	// Shows a popup prompting the user for input.
 	Prompt(opts PromptOpts) error
-	WithLoaderPanel(message string, f func() error) error
-	WithWaitingStatus(message string, f func() error) error
+	WithLoaderPanel(message string, f func(*gocui.Task) error) error
+	WithWaitingStatus(message string, f func(*gocui.Task) error) error
 	Menu(opts CreateMenuOptions) error
 	Toast(message string)
 	GetPromptInput() string

pkg/tasks/async_handler.go

@@ -1,6 +1,7 @@
 package tasks
 
 import (
+	"github.com/jesseduffield/gocui"
 	"github.com/sasha-s/go-deadlock"
 )
 
@@ -17,10 +18,10 @@ type AsyncHandler struct {
 	lastId    int
 	mutex     deadlock.Mutex
 	onReject  func()
-	onWorker  func(func())
+	onWorker  func(func(*gocui.Task))
 }
 
-func NewAsyncHandler(onWorker func(func())) *AsyncHandler {
+func NewAsyncHandler(onWorker func(func(*gocui.Task))) *AsyncHandler {
 	return &AsyncHandler{
 		mutex:    deadlock.Mutex{},
 		onWorker: onWorker,
@@ -33,7 +34,7 @@ func (self *AsyncHandler) Do(f func() func()) {
 	id := self.currentId
 	self.mutex.Unlock()
 
-	self.onWorker(func() {
+	self.onWorker(func(*gocui.Task) {
 		after := f()
 		self.handle(after, id)
 	})

pkg/tasks/async_handler_test.go

@@ -5,6 +5,7 @@ import (
 	"sync"
 	"testing"
 
+	"github.com/jesseduffield/gocui"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -12,8 +13,8 @@ func TestAsyncHandler(t *testing.T) {
 	wg := sync.WaitGroup{}
 	wg.Add(2)
 
-	onWorker := func(f func()) {
-		go f()
+	onWorker := func(f func(*gocui.Task)) {
+		go f(&gocui.Task{})
 	}
 	handler := NewAsyncHandler(onWorker)
 	handler.onReject = func() {

pkg/tasks/tasks.go

@@ -9,6 +9,7 @@ import (
 	"sync"
 	"time"
 
+	"github.com/jesseduffield/gocui"
 	"github.com/jesseduffield/lazygit/pkg/commands/oscommands"
 	"github.com/jesseduffield/lazygit/pkg/utils"
 	"github.com/sasha-s/go-deadlock"
@@ -49,8 +50,7 @@ type ViewBufferManager struct {
 	onEndOfInput func()
 
 	// see docs/dev/Busy.md
-	incrementBusyCount func()
-	decrementBusyCount func()
+	newTask func() *gocui.Task
 
 	// if the user flicks through a heap of items, with each one
 	// spawning a process to render something to the main view,
@@ -80,19 +80,17 @@ func NewViewBufferManager(
 	refreshView func(),
 	onEndOfInput func(),
 	onNewKey func(),
-	incrementBusyCount func(),
-	decrementBusyCount func(),
+	newTask func() *gocui.Task,
 ) *ViewBufferManager {
 	return &ViewBufferManager{
-		Log:                log,
-		writer:             writer,
-		beforeStart:        beforeStart,
-		refreshView:        refreshView,
-		onEndOfInput:       onEndOfInput,
-		readLines:          make(chan LinesToRead, 1024),
-		onNewKey:           onNewKey,
-		incrementBusyCount: incrementBusyCount,
-		decrementBusyCount: decrementBusyCount,
+		Log:          log,
+		writer:       writer,
+		beforeStart:  beforeStart,
+		refreshView:  refreshView,
+		onEndOfInput: onEndOfInput,
+		readLines:    make(chan LinesToRead, 1024),
+		onNewKey:     onNewKey,
+		newTask:      newTask,
 	}
 }
 
@@ -298,18 +296,18 @@ type TaskOpts struct {
 }
 
 func (self *ViewBufferManager) NewTask(f func(TaskOpts) error, key string) error {
-	self.incrementBusyCount()
+	task := self.newTask()
 
-	var decrementCounterOnce sync.Once
+	var completeTaskOnce sync.Once
 
-	decrementCounter := func() {
-		decrementCounterOnce.Do(func() {
-			self.decrementBusyCount()
+	completeTask := func() {
+		completeTaskOnce.Do(func() {
+			task.Done()
 		})
 	}
 
 	go utils.Safe(func() {
-		defer decrementCounter()
+		defer completeTask()
 
 		self.taskIDMutex.Lock()
 		self.newTaskID++
@@ -349,7 +347,7 @@ func (self *ViewBufferManager) NewTask(f func(TaskOpts) error, key string) error
 
 		self.waitingMutex.Unlock()
 
-		if err := f(TaskOpts{Stop: stop, InitialContentLoaded: decrementCounter}); err != nil {
+		if err := f(TaskOpts{Stop: stop, InitialContentLoaded: completeTask}); err != nil {
 			self.Log.Error(err) // might need an onError callback
 		}
 

pkg/tasks/tasks_test.go

@@ -10,6 +10,7 @@ import (
 	"testing"
 	"time"
 
+	"github.com/jesseduffield/gocui"
 	"github.com/jesseduffield/lazygit/pkg/secureexec"
 	"github.com/jesseduffield/lazygit/pkg/utils"
 )
@@ -31,7 +32,10 @@ func TestNewCmdTaskInstantStop(t *testing.T) {
 	onEndOfInput, getOnEndOfInputCallCount := getCounter()
 	onNewKey, getOnNewKeyCallCount := getCounter()
 	onDone, getOnDoneCallCount := getCounter()
-	incBusyCount, decBusyCount, getBusyCount := getIncDecCounter(1)
+	task := &gocui.Task{}
+	newTask := func() *gocui.Task {
+		return task
+	}
 
 	manager := NewViewBufferManager(
 		utils.NewDummyLog(),
@@ -40,8 +44,7 @@ func TestNewCmdTaskInstantStop(t *testing.T) {
 		refreshView,
 		onEndOfInput,
 		onNewKey,
-		incBusyCount,
-		decBusyCount,
+		newTask,
 	)
 
 	stop := make(chan struct{})
@@ -57,7 +60,7 @@ func TestNewCmdTaskInstantStop(t *testing.T) {
 
 	fn := manager.NewCmdTask(start, "prefix\n", LinesToRead{20, -1}, onDone)
 
-	_ = fn(TaskOpts{Stop: stop, InitialContentLoaded: decBusyCount})
+	_ = fn(TaskOpts{Stop: stop, InitialContentLoaded: func() { task.Done() }})
 
 	callCountExpectations := []struct {
 		expected int

vendor/github.com/jesseduffield/gocui/gui.go

@@ -174,12 +174,88 @@ type Gui struct {
 	suspendedMutex sync.Mutex
 	suspended      bool
 
+	taskManager *TaskManager
+}
+
+type TaskManager struct {
 	// Tracks whether the program is busy (i.e. either something is happening on
 	// the main goroutine or a worker goroutine). Used by integration tests
 	// to wait until the program is idle before progressing.
-	busyCount      int
-	busyCountMutex sync.Mutex
-	idleListeners  []chan struct{}
+	idleListeners []chan struct{}
+	tasks         map[int]*Task
+	newTaskId     int
+	tasksMutex    sync.Mutex
+}
+
+func newTaskManager() *TaskManager {
+	return &TaskManager{
+		tasks:         make(map[int]*Task),
+		idleListeners: []chan struct{}{},
+	}
+}
+
+func (self *TaskManager) NewTask() *Task {
+	self.tasksMutex.Lock()
+	defer self.tasksMutex.Unlock()
+
+	self.newTaskId++
+	taskId := self.newTaskId
+
+	withMutex := func(f func()) {
+		self.tasksMutex.Lock()
+		defer self.tasksMutex.Unlock()
+
+		f()
+
+		// Check if all tasks are done
+		for _, task := range self.tasks {
+			if task.isBusy {
+				return
+			}
+		}
+
+		// If we get here, all tasks are done, so
+		// notify listeners that the program is idle
+		for _, listener := range self.idleListeners {
+			listener <- struct{}{}
+		}
+	}
+	onDone := func() {
+		withMutex(func() {
+			delete(self.tasks, taskId)
+		})
+	}
+	task := &Task{id: taskId, isBusy: true, onDone: onDone, withMutex: withMutex}
+	self.tasks[taskId] = task
+
+	return task
+}
+
+func (self *TaskManager) AddIdleListener(c chan struct{}) {
+	self.idleListeners = append(self.idleListeners, c)
+}
+
+type Task struct {
+	id        int
+	isBusy    bool
+	onDone    func()
+	withMutex func(func())
+}
+
+func (self *Task) Done() {
+	self.onDone()
+}
+
+func (self *Task) Pause() {
+	self.withMutex(func() {
+		self.isBusy = false
+	})
+}
+
+func (self *Task) Continue() {
+	self.withMutex(func() {
+		self.isBusy = true
+	})
 }
 
 // NewGui returns a new Gui object with a given output mode.
@@ -212,6 +288,7 @@ func NewGui(mode OutputMode, supportOverlaps bool, playRecording bool, headless
 
 	g.gEvents = make(chan GocuiEvent, 20)
 	g.userEvents = make(chan userEvent, 20)
+	g.taskManager = newTaskManager()
 
 	if playRecording {
 		g.ReplayedEvents = replayedEvents{
@@ -237,11 +314,15 @@ func NewGui(mode OutputMode, supportOverlaps bool, playRecording bool, headless
 	return g, nil
 }
 
+func (g *Gui) NewTask() *Task {
+	return g.taskManager.NewTask()
+}
+
 // An idle listener listens for when the program is idle. This is useful for
 // integration tests which can wait for the program to be idle before taking
 // the next step in the test.
 func (g *Gui) AddIdleListener(c chan struct{}) {
-	g.idleListeners = append(g.idleListeners, c)
+	g.taskManager.AddIdleListener(c)
 }
 
 // Close finalizes the library. It should be called after a successful
@@ -607,7 +688,8 @@ func getKey(key interface{}) (Key, rune, error) {
 
 // userEvent represents an event triggered by the user.
 type userEvent struct {
-	f func(*Gui) error
+	f    func(*Gui) error
+	task *Task
 }
 
 // Update executes the passed function. This method can be called safely from a
@@ -616,22 +698,22 @@ type userEvent struct {
 // the user events queue. Given that Update spawns a goroutine, the order in
 // which the user events will be handled is not guaranteed.
 func (g *Gui) Update(f func(*Gui) error) {
-	g.IncrementBusyCount()
+	task := g.NewTask()
 
-	go g.updateAsyncAux(f)
+	go g.updateAsyncAux(f, task)
 }
 
 // UpdateAsync is a version of Update that does not spawn a go routine, it can
 // be a bit more efficient in cases where Update is called many times like when
 // tailing a file.  In general you should use Update()
 func (g *Gui) UpdateAsync(f func(*Gui) error) {
-	g.IncrementBusyCount()
+	task := g.NewTask()
 
-	g.updateAsyncAux(f)
+	g.updateAsyncAux(f, task)
 }
 
-func (g *Gui) updateAsyncAux(f func(*Gui) error) {
-	g.userEvents <- userEvent{f: f}
+func (g *Gui) updateAsyncAux(f func(*Gui) error, task *Task) {
+	g.userEvents <- userEvent{f: f, task: task}
 }
 
 // Calls a function in a goroutine. Handles panics gracefully and tracks
@@ -640,15 +722,15 @@ func (g *Gui) updateAsyncAux(f func(*Gui) error) {
 // consider itself 'busy` as it runs the code. Don't use for long-running
 // background goroutines where you wouldn't want lazygit to be considered busy
 // (i.e. when you wouldn't want a loader to be shown to the user)
-func (g *Gui) OnWorker(f func()) {
-	g.IncrementBusyCount()
+func (g *Gui) OnWorker(f func(*Task)) {
+	task := g.NewTask()
 	go func() {
-		g.onWorkerAux(f)
-		g.DecrementBusyCount()
+		g.onWorkerAux(f, task)
+		task.Done()
 	}()
 }
 
-func (g *Gui) onWorkerAux(f func()) {
+func (g *Gui) onWorkerAux(f func(*Task), task *Task) {
 	panicking := true
 	defer func() {
 		if panicking && Screen != nil {
@@ -656,7 +738,7 @@ func (g *Gui) onWorkerAux(f func()) {
 		}
 	}()
 
-	f()
+	f(task)
 
 	panicking = false
 }
@@ -722,43 +804,17 @@ func (g *Gui) MainLoop() error {
 	}
 }
 
-func (g *Gui) IncrementBusyCount() {
-	g.busyCountMutex.Lock()
-	defer g.busyCountMutex.Unlock()
-
-	g.busyCount++
-}
-
-func (g *Gui) DecrementBusyCount() {
-	g.busyCountMutex.Lock()
-	defer g.busyCountMutex.Unlock()
-
-	if g.busyCount == 0 {
-		panic("busyCount is already 0")
-	}
-
-	if g.busyCount == 1 {
-		// notify listeners that the program is idle
-		for _, listener := range g.idleListeners {
-			listener <- struct{}{}
-		}
-	}
-
-	g.busyCount--
-}
-
 func (g *Gui) processEvent() error {
 	select {
 	case ev := <-g.gEvents:
-		g.IncrementBusyCount()
-		defer func() { g.DecrementBusyCount() }()
+		task := g.NewTask()
+		defer func() { task.Done() }()
 
 		if err := g.handleEvent(&ev); err != nil {
 			return err
 		}
 	case ev := <-g.userEvents:
-		// user events increment busyCount ahead of time
-		defer func() { g.DecrementBusyCount() }()
+		defer func() { ev.task.Done() }()
 
 		if err := ev.f(g); err != nil {
 			return err
@@ -785,7 +841,7 @@ func (g *Gui) processRemainingEvents() error {
 			}
 		case ev := <-g.userEvents:
 			err := ev.f(g)
-			g.DecrementBusyCount()
+			ev.task.Done()
 			if err != nil {
 				return err
 			}

vendor/modules.txt

@@ -172,7 +172,7 @@ github.com/jesseduffield/go-git/v5/utils/merkletrie/filesystem
 github.com/jesseduffield/go-git/v5/utils/merkletrie/index
 github.com/jesseduffield/go-git/v5/utils/merkletrie/internal/frame
 github.com/jesseduffield/go-git/v5/utils/merkletrie/noder
-# github.com/jesseduffield/gocui v0.3.1-0.20230708122437-f7e1c7c16828
+# github.com/jesseduffield/gocui v0.3.1-0.20230709105400-44d9f78b4b52
 ## explicit; go 1.12
 github.com/jesseduffield/gocui
 # github.com/jesseduffield/kill v0.0.0-20220618033138-bfbe04675d10