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-rw-r--r--git-rebase--am.sh97
1 files changed, 84 insertions, 13 deletions
diff --git a/git-rebase--am.sh b/git-rebase--am.sh
index c815a2412c..9ae898bc1d 100644
--- a/git-rebase--am.sh
+++ b/git-rebase--am.sh
@@ -1,30 +1,101 @@
-#!/bin/sh
+# This shell script fragment is sourced by git-rebase to implement
+# its default, fast, patch-based, non-interactive mode.
#
# Copyright (c) 2010 Junio C Hamano.
#
-. git-sh-setup
+# The whole contents of this file is run by dot-sourcing it from
+# inside a shell function. It used to be that "return"s we see
+# below were not inside any function, and expected to return
+# to the function that dot-sourced us.
+#
+# However, FreeBSD /bin/sh misbehaves on such a construct and
+# continues to run the statements that follow such a "return".
+# As a work-around, we introduce an extra layer of a function
+# here, and immediately call it after defining it.
+git_rebase__am () {
case "$action" in
continue)
- git am --resolved --resolvemsg="$resolvemsg" &&
+ git am --resolved --resolvemsg="$resolvemsg" \
+ ${gpg_sign_opt:+"$gpg_sign_opt"} &&
move_to_original_branch
- exit
+ return
;;
skip)
git am --skip --resolvemsg="$resolvemsg" &&
move_to_original_branch
- exit
+ return
;;
esac
-test -n "$rebase_root" && root_flag=--root
+if test -z "$rebase_root"
+ # this is now equivalent to ! -z "$upstream"
+then
+ revisions=$upstream...$orig_head
+else
+ revisions=$onto...$orig_head
+fi
+
+ret=0
+if test -n "$keep_empty"
+then
+ # we have to do this the hard way. git format-patch completely squashes
+ # empty commits and even if it didn't the format doesn't really lend
+ # itself well to recording empty patches. fortunately, cherry-pick
+ # makes this easy
+ git cherry-pick ${gpg_sign_opt:+"$gpg_sign_opt"} --allow-empty \
+ --right-only "$revisions" \
+ ${restrict_revision+^$restrict_revision}
+ ret=$?
+else
+ rm -f "$GIT_DIR/rebased-patches"
+
+ git format-patch -k --stdout --full-index --cherry-pick --right-only \
+ --src-prefix=a/ --dst-prefix=b/ --no-renames --no-cover-letter \
+ "$revisions" ${restrict_revision+^$restrict_revision} \
+ >"$GIT_DIR/rebased-patches"
+ ret=$?
+
+ if test 0 != $ret
+ then
+ rm -f "$GIT_DIR/rebased-patches"
+ case "$head_name" in
+ refs/heads/*)
+ git checkout -q "$head_name"
+ ;;
+ *)
+ git checkout -q "$orig_head"
+ ;;
+ esac
+
+ cat >&2 <<-EOF
+
+ git encountered an error while preparing the patches to replay
+ these revisions:
+
+ $revisions
+
+ As a result, git cannot rebase them.
+ EOF
+ return $ret
+ fi
+
+ git am $git_am_opt --rebasing --resolvemsg="$resolvemsg" \
+ ${gpg_sign_opt:+"$gpg_sign_opt"} <"$GIT_DIR/rebased-patches"
+ ret=$?
+
+ rm -f "$GIT_DIR/rebased-patches"
+fi
+
+if test 0 != $ret
+then
+ test -d "$state_dir" && write_basic_state
+ return $ret
+fi
-git format-patch -k --stdout --full-index --ignore-if-in-upstream \
- --src-prefix=a/ --dst-prefix=b/ \
- --no-renames $root_flag "$revisions" |
-git am $git_am_opt --rebasing --resolvemsg="$resolvemsg" &&
move_to_original_branch
-ret=$?
-test 0 != $ret -a -d "$state_dir" && write_basic_state
-exit $ret
+
+}
+# ... and then we call the whole thing.
+git_rebase__am