path: root/Documentation/git-filter-branch.txt
diff options
Diffstat (limited to 'Documentation/git-filter-branch.txt')
1 files changed, 13 insertions, 2 deletions
diff --git a/Documentation/git-filter-branch.txt b/Documentation/git-filter-branch.txt
index e22dfa5..543a1cf 100644
--- a/Documentation/git-filter-branch.txt
+++ b/Documentation/git-filter-branch.txt
@@ -56,7 +56,9 @@ notable exception of the commit filter, for technical reasons).
Prior to that, the $GIT_COMMIT environment variable will be set to contain
the id of the commit being rewritten. Also, GIT_AUTHOR_NAME,
-and GIT_COMMITTER_DATE are set according to the current commit.
+and GIT_COMMITTER_DATE are set according to the current commit. If any
+evaluation of <command> returns a non-zero exit status, the whole operation
+will be aborted.
A 'map' function is available that takes an "original sha1 id" argument
and outputs a "rewritten sha1 id" if the commit has been already
@@ -197,7 +199,7 @@ happened). If this is not the case, use:
git filter-branch --parent-filter \
- 'cat; test $GIT_COMMIT = <commit-id> && echo "-p <graft-id>"' HEAD
+ 'test $GIT_COMMIT = <commit-id> && echo "-p <graft-id>" || cat' HEAD
or even simpler:
@@ -240,6 +242,15 @@ committed a merge between P1 and P2, it will be propagated properly
and all children of the merge will become merge commits with P1,P2
as their parents instead of the merge commit.
+You can rewrite the commit log messages using `--message-filter`. For
+example, `git-svn-id` strings in a repository created by `git-svn` can
+be removed this way:
+git filter-branch --message-filter '
+ sed -e "/^git-svn-id:/d"
To restrict rewriting to only part of the history, specify a revision
range in addition to the new branch name. The new branch name will