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-rwxr-xr-xgit-request-pull.sh138
1 files changed, 111 insertions, 27 deletions
diff --git a/git-request-pull.sh b/git-request-pull.sh
index fc080cc5e4..ebf1269d29 100755
--- a/git-request-pull.sh
+++ b/git-request-pull.sh
@@ -35,44 +35,128 @@ do
shift
done
-base=$1
-url=$2
-head=${3-HEAD}
+base=$1 url=$2 head=${3-HEAD} status=0 branch_name=
-[ "$base" ] || usage
-[ "$url" ] || usage
+headref=$(git symbolic-ref -q "$head")
+if git show-ref -q --verify "$headref"
+then
+ branch_name=${headref#refs/heads/}
+ if test "z$branch_name" = "z$headref" ||
+ ! git config "branch.$branch_name.description" >/dev/null
+ then
+ branch_name=
+ fi
+fi
+
+tag_name=$(git describe --exact "$head^0" 2>/dev/null)
+
+test -n "$base" && test -n "$url" || usage
-baserev=`git rev-parse --verify "$base"^0` &&
-headrev=`git rev-parse --verify "$head"^0` || exit
+baserev=$(git rev-parse --verify --quiet "$base"^0)
+if test -z "$baserev"
+then
+ die "fatal: Not a valid revision: $base"
+fi
+
+headrev=$(git rev-parse --verify --quiet "$head"^0)
+if test -z "$headrev"
+then
+ die "fatal: Not a valid revision: $head"
+fi
-merge_base=`git merge-base $baserev $headrev` ||
+merge_base=$(git merge-base $baserev $headrev) ||
die "fatal: No commits in common between $base and $head"
-branch=$(git ls-remote "$url" \
- | sed -n -e "/^$headrev refs.heads./{
- s/^.* refs.heads.//
- p
- q
- }")
+# $head is the token given from the command line, and $tag_name, if
+# exists, is the tag we are going to show the commit information for.
+# If that tag exists at the remote and it points at the commit, use it.
+# Otherwise, if a branch with the same name as $head exists at the remote
+# and their values match, use that instead.
+#
+# Otherwise find a random ref that matches $headrev.
+find_matching_ref='
+ sub abbr {
+ my $ref = shift;
+ if ($ref =~ s|^refs/heads/|| || $ref =~ s|^refs/tags/|tags/|) {
+ return $ref;
+ } else {
+ return $ref;
+ }
+ }
+
+ my ($tagged, $branch, $found);
+ while (<STDIN>) {
+ my ($sha1, $ref, $deref) = /^(\S+)\s+(\S+?)(\^\{\})?$/;
+ next unless ($sha1 eq $ARGV[1]);
+ $found = abbr($ref);
+ if ($deref && $ref eq "tags/$ARGV[2]") {
+ $tagged = $found;
+ last;
+ }
+ if ($ref =~ m|/\Q$ARGV[0]\E$|) {
+ $exact = $found;
+ }
+ }
+ if ($tagged) {
+ print "$tagged\n";
+ } elsif ($exact) {
+ print "$exact\n";
+ } elsif ($found) {
+ print "$found\n";
+ }
+'
+
+ref=$(git ls-remote "$url" | perl -e "$find_matching_ref" "$head" "$headrev" "$tag_name")
+
url=$(git ls-remote --get-url "$url")
-if [ -z "$branch" ]; then
- echo "warn: No branch of $url is at:" >&2
- git log --max-count=1 --pretty='tformat:warn: %h: %s' $headrev >&2
- echo "warn: Are you sure you pushed $head there?" >&2
- echo >&2
- echo >&2
- branch=..BRANCH.NOT.VERIFIED..
- status=1
-fi
git show -s --format='The following changes since commit %H:
%s (%ci)
-are available in the git repository at:' $baserev &&
-echo " $url $branch" &&
-echo &&
+are available in the git repository at:
+' $merge_base &&
+echo " $url${ref+ $ref}" &&
+git show -s --format='
+for you to fetch changes up to %H:
+
+ %s (%ci)
+
+----------------------------------------------------------------' $headrev &&
+
+if test -n "$branch_name"
+then
+ echo "(from the branch description for $branch_name local branch)"
+ echo
+ git config "branch.$branch_name.description"
+fi &&
+
+if test -n "$tag_name"
+then
+ if test -z "$ref" || test "$ref" != "tags/$tag_name"
+ then
+ echo >&2 "warn: You locally have $tag_name but it does not (yet)"
+ echo >&2 "warn: appear to be at $url"
+ echo >&2 "warn: Do you want to push it there, perhaps?"
+ fi
+ git cat-file tag "$tag_name" |
+ sed -n -e '1,/^$/d' -e '/^-----BEGIN PGP /q' -e p
+ echo
+fi &&
+
+if test -n "$branch_name" || test -n "$tag_name"
+then
+ echo "----------------------------------------------------------------"
+fi &&
git shortlog ^$baserev $headrev &&
-git diff -M --stat --summary $patch $merge_base..$headrev || exit
+git diff -M --stat --summary $patch $merge_base..$headrev || status=1
+
+if test -z "$ref"
+then
+ echo "warn: No branch of $url is at:" >&2
+ git show -s --format='warn: %h: %s' $headrev >&2
+ echo "warn: Are you sure you pushed '$head' there?" >&2
+ status=1
+fi
exit $status