_
/
aerc
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Ensure we aren't selecting negative directories 

When the list of directories is empty trying to navigate in the
directory list did previously lead to a crash. With this change we
instead return early before trying to change the directory.

Example backtrace:

> panic: runtime error: index out of range [-1]
>
> goroutine 1 [running]:
> git.sr.ht/~sircmpwn/aerc/widgets.(*DirectoryList).NextPrev(0xc000160680, 0xffffffffffffffff)
> 	source/aerc/widgets/dirlist.go:285 +0xd4
> git.sr.ht/~sircmpwn/aerc/commands/account.NextPrevFolder.Execute(0xc000191040, 0xc00025c210, 0x1, 0x1, 0x0, 0xc00016f420)
> 	source/aerc/commands/account/next-folder.go:44 +0xe0
> git.sr.ht/~sircmpwn/aerc/commands.(*Commands).ExecuteCommand(0xc0000101a8, 0xc000191040, 0xc00025c210, 0x1, 0x1, 0xc000020070, 0xb46d01)
> 	source/aerc/commands/commands.go:66 +0xa7
> main.execCommand(0xc000191040, 0xc0001ca190, 0xc00025c210, 0x1, 0x1, 0xc00025c210, 0xc0003fb080)
> 	source/aerc/aerc.go:60 +0xc7
> main.main.func3(0xc00025c210, 0x1, 0x1, 0x1, 0x1)
> 	source/aerc/aerc.go:162 +0x57
> git.sr.ht/~sircmpwn/aerc/widgets.(*Aerc).BeginExCommand.func1(0xc000201db0, 0xb)
> 	source/aerc/widgets/aerc.go:382 +0x83
> git.sr.ht/~sircmpwn/aerc/widgets.(*ExLine).Event(0xc0003be100, 0xb475a0, 0xc00023cba0, 0xc00023cba0)
> 	source/aerc/widgets/exline.go:79 +0x131
> git.sr.ht/~sircmpwn/aerc/widgets.(*Aerc).Event(0xc000191040, 0xb475a0, 0xc00023cba0, 0x99ee01)
> 	source/aerc/widgets/aerc.go:202 +0x4c1
> git.sr.ht/~sircmpwn/aerc/widgets.(*Aerc).simulate(0xc000191040, 0xc000036f00, 0xd, 0x10)
> 	source/aerc/widgets/aerc.go:195 +0x8d
> git.sr.ht/~sircmpwn/aerc/widgets.(*Aerc).Event(0xc000191040, 0xb475a0, 0xc00023c9c0, 0x9c5a60)
> 	source/aerc/widgets/aerc.go:218 +0x3e8
> git.sr.ht/~sircmpwn/aerc/lib/ui.(*UI).Tick(0xc0001ca190, 0xa99d00)
> 	source/aerc/lib/ui/ui.go:92 +0x190
> main.main()
> 	source/aerc/aerc.go:192 +0x5f2
This commit is contained in:
Andreas Rammhold 2020-02-06 12:47:38 +01:00 committed by Drew DeVault
parent 8c8096da97
commit aed847f9eb
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
widgets/dirlist.go
View File

@ -277,11 +277,17 @@ func (dirlist *DirectoryList) NextPrev(delta int) {
}
newIdx := curIdx + delta
ndirs := len(dirlist.dirs)
if ndirs == 0 {
return
}
if newIdx < 0 {
newIdx = ndirs - 1
} else if newIdx >= ndirs {
newIdx = 0
}
dirlist.Select(dirlist.dirs[newIdx])
}