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Diffstat (limited to 'Documentation/git-filter-branch.txt')
| -rw-r--r-- | Documentation/git-filter-branch.txt | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/Documentation/git-filter-branch.txt b/Documentation/git-filter-branch.txt index 6454e49bf..506c37af7 100644 --- a/Documentation/git-filter-branch.txt +++ b/Documentation/git-filter-branch.txt @@ -133,10 +133,16 @@ use "--tag-name-filter cat" to simply update the tags. In this case, be very careful and make sure you have the old tags backed up in case the conversion has run afoul. + -Note that there is currently no support for proper rewriting of -tag objects; in layman terms, if the tag has a message or signature -attached, the rewritten tag won't have it. Sorry. (It is by -definition impossible to preserve signatures at any rate.) +Nearly proper rewriting of tag objects is supported. If the tag has +a message attached, a new tag object will be created with the same message, +author, and timestamp. If the tag has a signature attached, the +signature will be stripped. It is by definition impossible to preserve +signatures. The reason this is "nearly" proper, is because ideally if +the tag did not change (points to the same object, has the same name, etc.) +it should retain any signature. That is not the case, signatures will always +be removed, buyer beware. There is also no support for changing the +author or timestamp (or the tag message for that matter). Tags which point +to other tags will be rewritten to point to the underlying commit. --subdirectory-filter <directory>:: Only look at the history which touches the given subdirectory. @@ -177,6 +183,10 @@ or copyright violation) from all commits: git filter-branch --tree-filter 'rm filename' HEAD ------------------------------------------------------- +However, if the file is absent from the tree of some commit, +a simple `rm filename` will fail for that tree and commit. +Thus you may instead want to use `rm -f filename` as the script. + A significantly faster version: -------------------------------------------------------------------------- |