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fix(git): support in-progress cherry-pick/revert

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When a cherry-pick is in progress, .git/CHERRY_PICK_HEAD doesn't exist,
so read .git/sequencer/todo instead.

The canonical git prompt in git/git/contrib has this in the "sequencer" section,
which handles cherry-pick operations.

This includes support for "git revert", so I am also adding that.

I chose the fa-undo icon for "revert".

@see https://github.com/git/git/blob/master/contrib/completion/git-prompt.sh
This commit is contained in:
Chris Donnelly 2021-07-29 14:42:38 -05:00 committed by Jan De Dobbeleer
parent 7bf528ef11
commit c7b78c3de3
1 changed files with 26 additions and 1 deletions
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27
src/segment_git.go
View file

@ -72,6 +72,8 @@ const (
RebaseIcon Property = "rebase_icon"
// CherryPickIcon shows before the cherry-pick context
CherryPickIcon Property = "cherry_pick_icon"
// RevertIcon shows before the revert context
RevertIcon Property = "revert_icon"
// CommitIcon shows before the detached context
CommitIcon Property = "commit_icon"
// NoCommitsIcon shows when there are no commits in the repo yet
@ -331,11 +333,34 @@ func (g *git) getGitHEADContext(ref string) string {
return fmt.Sprintf("%s%s%s into %s", icon, branchIcon, branch, ref)
}
}
// cherry-pick
// sequencer status
// see if a cherry-pick or revert is in progress, if the user has committed a
// conflict resolution with 'git commit' in the middle of a sequence of picks or
// reverts then CHERRY_PICK_HEAD/REVERT_HEAD will not exist so we have to read
// the todo file.
if g.hasGitFile("CHERRY_PICK_HEAD") {
sha := g.getGitFileContents("CHERRY_PICK_HEAD")
icon := g.props.getString(CherryPickIcon, "\uE29B ")
return fmt.Sprintf("%s%s onto %s", icon, sha[0:6], ref)
} else if g.hasGitFile("REVERT_HEAD") {
sha := g.getGitFileContents("REVERT_HEAD")
icon := g.props.getString(RevertIcon, "\uF0E2 ")
return fmt.Sprintf("%s%s onto %s", icon, sha[0:6], ref)
} else if g.hasGitFile("sequencer/todo") {
todo := g.getGitFileContents("sequencer/todo")
matches := findNamedRegexMatch(`^(?P<action>p|pick|revert)\s+(?P<sha>\S+)`, todo)
if matches != nil && matches["sha"] != "" {
action := matches["action"]
sha := matches["sha"]
switch action {
case "p", "pick":
icon := g.props.getString(CherryPickIcon, "\uE29B ")
return fmt.Sprintf("%s%s onto %s", icon, sha[0:6], ref)
case "revert":
icon := g.props.getString(RevertIcon, "\uF0E2 ")
return fmt.Sprintf("%s%s onto %s", icon, sha[0:6], ref)
}
}
}
return ref
}