diff options
author | Nanako Shiraishi <nanako3@lavabit.com> | 2008-09-27 15:44:15 +0400 |
---|---|---|
committer | Shawn O. Pearce <spearce@spearce.org> | 2008-09-29 20:15:41 +0400 |
commit | c11c7a5db3676258512c4067c5279377811d3ab8 (patch) | |
tree | a24e2832a0166450f527d753b97eea198ebbb854 | |
parent | 8252df62187e7fd35543552ffeab1e1eb048b57e (diff) |
Add contrib/rerere-train script
This script takes a range of commits (e.g. maint..next) as its arguments,
recreates merge commits in the range to prime rr-cache database.
Signed-off-by: Nanako Shiraishi <nanako3@lavabit.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
-rwxr-xr-x | contrib/rerere-train.sh | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/contrib/rerere-train.sh b/contrib/rerere-train.sh new file mode 100755 index 0000000000..2cfe1b936b --- /dev/null +++ b/contrib/rerere-train.sh @@ -0,0 +1,52 @@ +#!/bin/sh +# Copyright (c) 2008, Nanako Shiraishi +# Prime rerere database from existing merge commits + +me=rerere-train +USAGE="$me rev-list-args" + +SUBDIRECTORY_OK=Yes +OPTIONS_SPEC= +. git-sh-setup +require_work_tree +cd_to_toplevel + +# Remember original branch +branch=$(git symbolic-ref -q HEAD) || +original_HEAD=$(git rev-parse --verify HEAD) || { + echo >&2 "Not on any branch and no commit yet?" + exit 1 +} + +mkdir -p "$GIT_DIR/rr-cache" || exit + +git rev-list --parents "$@" | +while read commit parent1 other_parents +do + if test -z "$other_parents" + then + # Skip non-merges + continue + fi + git checkout -q "$parent1^0" + if git merge $other_parents >/dev/null 2>&1 + then + # Cleanly merges + continue + fi + if test -s "$GIT_DIR/MERGE_RR" + then + git show -s --pretty=format:"Learning from %h %s" "$commit" + git rerere + git checkout -q $commit -- . + git rerere + fi + git reset -q --hard +done + +if test -z "$branch" +then + git checkout "$original_HEAD" +else + git checkout "${branch#refs/heads/}" +fi |