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git-prompt: improve cherry-pick/revert detection

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If the user commits or resets a conflict resolution in the middle of a
sequence of cherry-picks or reverts then CHERRY_PICK_HEAD/REVERT_HEAD
will be removed and so in the absence of those files we need to check
.git/sequencer/todo to see if there is a cherry-pick or revert in
progress.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Phillip Wood 2019-07-01 07:21:06 -07:00 committed by Junio C Hamano
parent 8dca754b1e
commit e981bf7525
2 changed files with 51 additions and 6 deletions
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37
contrib/completion/git-prompt.sh
View file

@ -286,6 +286,37 @@ __git_eread ()
test -r "$1" && IFS=$'\r\n' read "$2" <"$1"
}
# see if a cherry-pick or revert is in progress, if the user has committed a
# conflict resolution with 'git commit' in the middle of a sequence of picks or
# reverts then CHERRY_PICK_HEAD/REVERT_HEAD will not exist so we have to read
# the todo file.
__git_sequencer_status ()
{
local todo
if test -f "$g/CHERRY_PICK_HEAD"
then
r="|CHERRY-PICKING"
return 0;
elif test -f "$g/REVERT_HEAD"
then
r="|REVERTING"
return 0;
elif __git_eread "$g/sequencer/todo" todo
then
case "$todo" in
p[\ \ ]|pick[\ \ ]*)
r="|CHERRY-PICKING"
return 0
;;
revert[\ \ ]*)
r="|REVERTING"
return 0
;;
esac
fi
return 1
}
# __git_ps1 accepts 0 or 1 arguments (i.e., format string)
# when called from PS1 using command substitution
# in this mode it prints text to add to bash PS1 prompt (includes branch name)
@ -417,10 +448,8 @@ __git_ps1 ()
fi
elif [ -f "$g/MERGE_HEAD" ]; then
r="|MERGING"
elif [ -f "$g/CHERRY_PICK_HEAD" ]; then
r="|CHERRY-PICKING"
elif [ -f "$g/REVERT_HEAD" ]; then
r="|REVERTING"
elif __git_sequencer_status; then
:
elif [ -f "$g/BISECT_LOG" ]; then
r="|BISECTING"
fi

20
t/t9903-bash-prompt.sh
View file

@ -211,8 +211,24 @@ test_expect_success 'prompt - merge' '
test_expect_success 'prompt - cherry-pick' '
printf " (master|CHERRY-PICKING)" >expected &&
test_must_fail git cherry-pick b1 &&
test_when_finished "git reset --hard" &&
test_must_fail git cherry-pick b1 b1^ &&
test_when_finished "git cherry-pick --abort" &&
__git_ps1 >"$actual" &&
test_cmp expected "$actual" &&
git reset --merge &&
test_must_fail git rev-parse CHERRY_PICK_HEAD &&
__git_ps1 >"$actual" &&
test_cmp expected "$actual"
'
test_expect_success 'prompt - revert' '
printf " (master|REVERTING)" >expected &&
test_must_fail git revert b1^ b1 &&
test_when_finished "git revert --abort" &&
__git_ps1 >"$actual" &&
test_cmp expected "$actual" &&
git reset --merge &&
test_must_fail git rev-parse REVERT_HEAD &&
__git_ps1 >"$actual" &&
test_cmp expected "$actual"
'