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| author |  Andreas Heiduk <asheiduk@gmail.com> | 2017-06-10 10:54:44 +0200 |
|---|---|---|
| committer |  Junio C Hamano <gitster@pobox.com> | 2017-06-12 09:44:54 -0700 |
| commit | 3b117f730185ec8acdc8f1b680b9f0a9b647fc0f (patch) | |
| tree | 75bf64d5d8600a47921cfaa7a3d0bd7abc601c99 | |
| parent | Merge branch 'master' of git://bogomips.org/git-svn (diff) | |
| download | tgif-3b117f730185ec8acdc8f1b680b9f0a9b647fc0f.tar.xz | |
filter-branch: add `--setup` step
A `--setup` step in `git filter-branch` makes it much easier to
define the initial values of variables used in the real filters.
Also sourcing/defining utility functions here instead of
`--env-filter` improves performance and minimizes clogging the
output in case of errors.
Signed-off-by: Andreas Heiduk <asheiduk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
| -rw-r--r-- | Documentation/git-filter-branch.txt | 17 | ||||
| -rwxr-xr-x | git-filter-branch.sh | 18 |
2 files changed, 25 insertions, 10 deletions
diff --git a/Documentation/git-filter-branch.txt b/Documentation/git-filter-branch.txt index 7b695dbb72..9e5169aa64 100644 --- a/Documentation/git-filter-branch.txt +++ b/Documentation/git-filter-branch.txt @@ -8,11 +8,11 @@ git-filter-branch - Rewrite branches SYNOPSIS -------- [verse] -'git filter-branch' [--env-filter <command>] [--tree-filter <command>] - [--index-filter <command>] [--parent-filter <command>] - [--msg-filter <command>] [--commit-filter <command>] - [--tag-name-filter <command>] [--subdirectory-filter <directory>] - [--prune-empty] +'git filter-branch' [--setup <command>] [--env-filter <command>] + [--tree-filter <command>] [--index-filter <command>] + [--parent-filter <command>] [--msg-filter <command>] + [--commit-filter <command>] [--tag-name-filter <command>] + [--subdirectory-filter <directory>] [--prune-empty] [--original <namespace>] [-d <directory>] [-f | --force] [--] [<rev-list options>...] @@ -82,6 +82,13 @@ multiple commits. OPTIONS ------- +--setup <command>:: + This is not a real filter executed for each commit but a one + time setup just before the loop. Therefore no commit-specific + variables are defined yet. Functions or variables defined here + can be used or modified in the following filter steps except + the commit filter, for technical reasons. + --env-filter <command>:: This filter may be used if you only need to modify the environment in which the commit will be performed. Specifically, you might diff --git a/git-filter-branch.sh b/git-filter-branch.sh index aafaf708da..2758ae5ebf 100755 --- a/git-filter-branch.sh +++ b/git-filter-branch.sh @@ -81,11 +81,12 @@ set_ident () { finish_ident COMMITTER } -USAGE="[--env-filter <command>] [--tree-filter <command>] - [--index-filter <command>] [--parent-filter <command>] - [--msg-filter <command>] [--commit-filter <command>] - [--tag-name-filter <command>] [--subdirectory-filter <directory>] - [--original <namespace>] [-d <directory>] [-f | --force] +USAGE="[--setup <command>] [--env-filter <command>] + [--tree-filter <command>] [--index-filter <command>] + [--parent-filter <command>] [--msg-filter <command>] + [--commit-filter <command>] [--tag-name-filter <command>] + [--subdirectory-filter <directory>] [--original <namespace>] + [-d <directory>] [-f | --force] [<rev-list options>...]" OPTIONS_SPEC= @@ -96,6 +97,7 @@ if [ "$(is_bare_repository)" = false ]; then fi tempdir=.git-rewrite +filter_setup= filter_env= filter_tree= filter_index= @@ -148,6 +150,9 @@ do -d) tempdir="$OPTARG" ;; + --setup) + filter_setup="$OPTARG" + ;; --env-filter) filter_env="$OPTARG" ;; @@ -317,6 +322,9 @@ else need_index= fi +eval "$filter_setup" < /dev/null || + die "filter setup failed: $filter_setup" + while read commit parents; do git_filter_branch__commit_count=$(($git_filter_branch__commit_count+1)) |