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authorJunio C Hamano <gitster@pobox.com>2015-06-24 19:21:49 (GMT)
committerJunio C Hamano <gitster@pobox.com>2015-06-24 19:21:50 (GMT)
commitce5e33832ae3f7224fe39d6ade4764522197bacf (patch)
tree0230514d9edadd2eb41f0673e42c9ca54ccd664a /git-am.sh
parent6f59058e490fa72c09faa974addfeeb2868dc648 (diff)
parent6ea3b67b4e3f4a09561a26ca42af1492b3b48c95 (diff)
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Merge branch 'pt/am-abort-fix'
Various fixes around "git am" that applies a patch to a history that is not there yet. * pt/am-abort-fix: am --abort: keep unrelated commits on unborn branch am --abort: support aborting to unborn branch am --abort: revert changes introduced by failed 3way merge am --skip: support skipping while on unborn branch am -3: support 3way merge on unborn branch am --skip: revert changes introduced by failed 3way merge
Diffstat (limited to 'git-am.sh')
-rwxr-xr-xgit-am.sh31
1 files changed, 23 insertions, 8 deletions
diff --git a/git-am.sh b/git-am.sh
index 75e701a..8733071 100755
--- a/git-am.sh
+++ b/git-am.sh
@@ -69,6 +69,8 @@ then
cmdline="$cmdline -3"
fi
+empty_tree=4b825dc642cb6eb9a060e54bf8d69288fbee4904
+
sq () {
git rev-parse --sq-quote "$@"
}
@@ -85,7 +87,7 @@ safe_to_abort () {
return 1
fi
- if ! test -s "$dotest/abort-safety"
+ if ! test -f "$dotest/abort-safety"
then
return 0
fi
@@ -177,7 +179,8 @@ It does not apply to blobs recorded in its index.")"
then
GIT_MERGE_VERBOSITY=0 && export GIT_MERGE_VERBOSITY
fi
- git-merge-recursive $orig_tree -- HEAD $his_tree || {
+ our_tree=$(git rev-parse --verify -q HEAD || echo $empty_tree)
+ git-merge-recursive $orig_tree -- $our_tree $his_tree || {
git rerere $allow_rerere_autoupdate
die "$(gettext "Failed to merge in the changes.")"
}
@@ -510,10 +513,11 @@ then
;;
t,)
git rerere clear
- git read-tree --reset -u HEAD HEAD
- orig_head=$(cat "$GIT_DIR/ORIG_HEAD")
- git reset HEAD
- git update-ref ORIG_HEAD $orig_head
+ head_tree=$(git rev-parse --verify -q HEAD || echo $empty_tree) &&
+ git read-tree --reset -u $head_tree $head_tree &&
+ index_tree=$(git write-tree) &&
+ git read-tree -m -u $index_tree $head_tree
+ git read-tree $head_tree
;;
,t)
if test -f "$dotest/rebasing"
@@ -523,8 +527,19 @@ then
git rerere clear
if safe_to_abort
then
- git read-tree --reset -u HEAD ORIG_HEAD
- git reset ORIG_HEAD
+ head_tree=$(git rev-parse --verify -q HEAD || echo $empty_tree) &&
+ git read-tree --reset -u $head_tree $head_tree &&
+ index_tree=$(git write-tree) &&
+ orig_head=$(git rev-parse --verify -q ORIG_HEAD || echo $empty_tree) &&
+ git read-tree -m -u $index_tree $orig_head
+ if git rev-parse --verify -q ORIG_HEAD >/dev/null 2>&1
+ then
+ git reset ORIG_HEAD
+ else
+ git read-tree $empty_tree
+ curr_branch=$(git symbolic-ref HEAD 2>/dev/null) &&
+ git update-ref -d $curr_branch
+ fi
fi
rm -fr "$dotest"
exit ;;