diff mbox series

[filter-repo,v2] filter-repo: add new --replace-message option

Message ID 20210823205549.18566-1-gwymor@tilde.club (mailing list archive)
State New, archived
Headers show
Series [filter-repo,v2] filter-repo: add new --replace-message option | expand

Commit Message

Gwyneth Morgan Aug. 23, 2021, 8:55 p.m. UTC 
Like --replace-text, add an option --replace-message which replaces text
in commit/tag message bodies, so that users can easily replace text
without constructing a --message-callback.

Signed-off-by: Gwyneth Morgan <gwymor@tilde.club>
---
 Documentation/git-filter-repo.txt | 25 ++++++++++
 git-filter-repo                   | 16 +++++++
 t/t9390-filter-repo.sh            |  1 +
 t/t9390/basic-message             | 78 +++++++++++++++++++++++++++++++
 t/t9390/sample-message            |  4 ++
 5 files changed, 124 insertions(+)
 create mode 100644 t/t9390/basic-message
 create mode 100644 t/t9390/sample-message

Comments

Elijah Newren Aug. 25, 2021, 3:08 p.m. UTC | #1 
On Mon, Aug 23, 2021 at 1:58 PM Gwyneth Morgan <gwymor@tilde.club> wrote:
>
> Like --replace-text, add an option --replace-message which replaces text
> in commit/tag message bodies, so that users can easily replace text
> without constructing a --message-callback.
>
> Signed-off-by: Gwyneth Morgan <gwymor@tilde.club>
> ---
>  Documentation/git-filter-repo.txt | 25 ++++++++++
>  git-filter-repo                   | 16 +++++++
>  t/t9390-filter-repo.sh            |  1 +
>  t/t9390/basic-message             | 78 +++++++++++++++++++++++++++++++
>  t/t9390/sample-message            |  4 ++
>  5 files changed, 124 insertions(+)
>  create mode 100644 t/t9390/basic-message
>  create mode 100644 t/t9390/sample-message
>
> diff --git a/Documentation/git-filter-repo.txt b/Documentation/git-filter-repo.txt
> index 2798378..1e590c7 100644
> --- a/Documentation/git-filter-repo.txt
> +++ b/Documentation/git-filter-repo.txt
> @@ -181,6 +181,11 @@ Renaming of refs (see also --refname-callback)
>  Filtering of commit messages (see also --message-callback)
>  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> +--replace-message <expressions_file>::
> +       A file with expressions that, if found in commit or tag
> +       messages, will be replaced. This file uses the same syntax as
> +       --replace-text.
> +
>  --preserve-commit-hashes::
>         By default, since commits are rewritten and thus gain new
>         hashes, references to old commit hashes in commit messages are
> @@ -896,6 +901,26 @@ YYYY-MM-DD.  In the expressions file, there are a few things to note:
>
>  See also the `--blob-callback` from <<CALLBACKS>>.
>
> +Updating commit/tag messages
> +~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> +
> +If you want to modify commit or tag messages, you can do so with the
> +same syntax as `--replace-text`, explained above.  For example, with a
> +file named expressions.txt containing
> +
> +--------------------------------------------------
> +foo==>bar
> +--------------------------------------------------
> +
> +then running
> +--------------------------------------------------
> +git filter-repo --replace-message expressions.txt
> +--------------------------------------------------
> +
> +will replace `foo` in commit or tag messages with `bar`.
> +
> +See also the `--message-callback` from <<CALLBACKS>>.
> +
>  Refname based filtering
>  ~~~~~~~~~~~~~~~~~~~~~~~
>
> diff --git a/git-filter-repo b/git-filter-repo
> index b91bd96..5e726c9 100755
> --- a/git-filter-repo
> +++ b/git-filter-repo
> @@ -1843,6 +1843,10 @@ EXAMPLES
>
>      messages = parser.add_argument_group(title=_("Filtering of commit messages "
>                                                 "(see also --message-callback)"))
> +    messages.add_argument('--replace-message', metavar='EXPRESSIONS_FILE',
> +        help=_("A file with expressions that, if found in commit messages, "
> +               "will be replaced. This file uses the same syntax as "
> +               "--replace-text."))
>      messages.add_argument('--preserve-commit-hashes', action='store_true',
>          help=_("By default, since commits are rewritten and thus gain new "
>                 "hashes, references to old commit hashes in commit messages "
> @@ -2189,6 +2193,8 @@ EXAMPLES
>        args.mailmap = MailmapInfo(args.mailmap)
>      if args.replace_text:
>        args.replace_text = FilteringOptions.get_replace_text(args.replace_text)
> +    if args.replace_message:
> +      args.replace_message = FilteringOptions.get_replace_text(args.replace_message)
>      if args.strip_blobs_with_ids:
>        with open(args.strip_blobs_with_ids, 'br') as f:
>          args.strip_blobs_with_ids = set(f.read().split())
> @@ -3374,6 +3380,11 @@ class RepoFilter(object):
>      if not self._args.preserve_commit_hashes:
>        commit.message = self._hash_re.sub(self._translate_commit_hash,
>                                           commit.message)
> +    if self._args.replace_message:
> +      for literal, replacement in self._args.replace_message['literals']:
> +        commit.message = commit.message.replace(literal, replacement)
> +      for regex,   replacement in self._args.replace_message['regexes']:
> +        commit.message = regex.sub(replacement, commit.message)
>      if self._message_callback:
>        commit.message = self._message_callback(commit.message)
>
> @@ -3474,6 +3485,11 @@ class RepoFilter(object):
>
>    def _tweak_tag(self, tag):
>      # Tweak the tag message according to callbacks
> +    if self._args.replace_message:
> +      for literal, replacement in self._args.replace_message['literals']:
> +        tag.message = tag.message.replace(literal, replacement)
> +      for regex,   replacement in self._args.replace_message['regexes']:
> +        tag.message = regex.sub(replacement, tag.message)
>      if self._message_callback:
>        tag.message = self._message_callback(tag.message)
>
> diff --git a/t/t9390-filter-repo.sh b/t/t9390-filter-repo.sh
> index 3f567e7..6d2d985 100755
> --- a/t/t9390-filter-repo.sh
> +++ b/t/t9390-filter-repo.sh
> @@ -39,6 +39,7 @@ filter_testcase basic basic-filename --invert-paths --path-glob 't*en*'
>  filter_testcase basic basic-numbers  --invert-paths --path-regex 'f.*e.*e'
>  filter_testcase basic basic-mailmap  --mailmap ../t9390/sample-mailmap
>  filter_testcase basic basic-replace  --replace-text ../t9390/sample-replace
> +filter_testcase basic basic-message  --replace-message ../t9390/sample-message
>  filter_testcase empty empty-keepme   --path keepme
>  filter_testcase empty more-empty-keepme --path keepme --prune-empty=always \
>                                                    --prune-degenerate=always
> diff --git a/t/t9390/basic-message b/t/t9390/basic-message
> new file mode 100644
> index 0000000..5b6b41b
> --- /dev/null
> +++ b/t/t9390/basic-message
> @@ -0,0 +1,78 @@
> +feature done
> +blob
> +mark :1
> +data 8
> +initial
> +
> +reset refs/heads/B
> +commit refs/heads/B
> +mark :2
> +author Little O. Me <me@little.net> 1535228562 -0700
> +committer Little O. Me <me@little.net> 1535228562 -0700
> +data 9
> +Modified
> +M 100644 :1 filename
> +M 100644 :1 ten
> +M 100644 :1 twenty
> +
> +blob
> +mark :3
> +data 11
> +twenty-mod
> +
> +commit refs/heads/B
> +mark :4
> +author Little 'ol Me <me@laptop.(none)> 1535229544 -0700
> +committer Little 'ol Me <me@laptop.(none)> 1535229544 -0700
> +data 18
> +add the number 20
> +from :2
> +M 100644 :3 twenty
> +
> +blob
> +mark :5
> +data 8
> +ten-mod
> +
> +commit refs/heads/A
> +mark :6
> +author Little O. Me <me@machine52.little.net> 1535229523 -0700
> +committer Little O. Me <me@machine52.little.net> 1535229523 -0700
> +data 8
> +add ten
> +from :2
> +M 100644 :5 ten
> +
> +commit refs/heads/master
> +mark :7
> +author Lit.e Me <me@fire.com> 1535229559 -0700
> +committer Lit.e Me <me@fire.com> 1535229580 -0700
> +data 24
> +Merge branch 'A' into B
> +from :4
> +merge :6
> +M 100644 :5 ten
> +
> +blob
> +mark :8
> +data 6
> +final
> +
> +commit refs/heads/master
> +mark :9
> +author Little Me <me@bigcompany.com> 1535229601 -0700
> +committer Little Me <me@bigcompany.com> 1535229601 -0700
> +data 9
> +whatever
> +from :7
> +M 100644 :8 filename
> +M 100644 :8 ten
> +M 100644 :8 twenty
> +
> +tag v1.0
> +from :9
> +tagger Little John <second@merry.men> 1535229618 -0700
> +data 15
> +version one :)
> +
> +done
> diff --git a/t/t9390/sample-message b/t/t9390/sample-message
> new file mode 100644
> index 0000000..0412c3c
> --- /dev/null
> +++ b/t/t9390/sample-message
> @@ -0,0 +1,4 @@
> +Initial==>Modified
> +regex:tw.nty==>the number 20
> +v1.0==>version one!
> +regex:!$==> :)
> --
> 2.33.0

Applied; thanks!
diff mbox series

Patch

diff --git a/Documentation/git-filter-repo.txt b/Documentation/git-filter-repo.txt
index 2798378..1e590c7 100644
--- a/Documentation/git-filter-repo.txt
+++ b/Documentation/git-filter-repo.txt
@@ -181,6 +181,11 @@  Renaming of refs (see also --refname-callback)
 Filtering of commit messages (see also --message-callback)
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
+--replace-message <expressions_file>::
+	A file with expressions that, if found in commit or tag
+	messages, will be replaced. This file uses the same syntax as
+	--replace-text.
+
 --preserve-commit-hashes::
 	By default, since commits are rewritten and thus gain new
 	hashes, references to old commit hashes in commit messages are
@@ -896,6 +901,26 @@  YYYY-MM-DD.  In the expressions file, there are a few things to note:
 
 See also the `--blob-callback` from <<CALLBACKS>>.
 
+Updating commit/tag messages
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+If you want to modify commit or tag messages, you can do so with the
+same syntax as `--replace-text`, explained above.  For example, with a
+file named expressions.txt containing
+
+--------------------------------------------------
+foo==>bar
+--------------------------------------------------
+
+then running
+--------------------------------------------------
+git filter-repo --replace-message expressions.txt
+--------------------------------------------------
+
+will replace `foo` in commit or tag messages with `bar`.
+
+See also the `--message-callback` from <<CALLBACKS>>.
+
 Refname based filtering
 ~~~~~~~~~~~~~~~~~~~~~~~
 
diff --git a/git-filter-repo b/git-filter-repo
index b91bd96..5e726c9 100755
--- a/git-filter-repo
+++ b/git-filter-repo
@@ -1843,6 +1843,10 @@  EXAMPLES
 
     messages = parser.add_argument_group(title=_("Filtering of commit messages "
                                                "(see also --message-callback)"))
+    messages.add_argument('--replace-message', metavar='EXPRESSIONS_FILE',
+        help=_("A file with expressions that, if found in commit messages, "
+               "will be replaced. This file uses the same syntax as "
+               "--replace-text."))
     messages.add_argument('--preserve-commit-hashes', action='store_true',
         help=_("By default, since commits are rewritten and thus gain new "
                "hashes, references to old commit hashes in commit messages "
@@ -2189,6 +2193,8 @@  EXAMPLES
       args.mailmap = MailmapInfo(args.mailmap)
     if args.replace_text:
       args.replace_text = FilteringOptions.get_replace_text(args.replace_text)
+    if args.replace_message:
+      args.replace_message = FilteringOptions.get_replace_text(args.replace_message)
     if args.strip_blobs_with_ids:
       with open(args.strip_blobs_with_ids, 'br') as f:
         args.strip_blobs_with_ids = set(f.read().split())
@@ -3374,6 +3380,11 @@  class RepoFilter(object):
     if not self._args.preserve_commit_hashes:
       commit.message = self._hash_re.sub(self._translate_commit_hash,
                                          commit.message)
+    if self._args.replace_message:
+      for literal, replacement in self._args.replace_message['literals']:
+        commit.message = commit.message.replace(literal, replacement)
+      for regex,   replacement in self._args.replace_message['regexes']:
+        commit.message = regex.sub(replacement, commit.message)
     if self._message_callback:
       commit.message = self._message_callback(commit.message)
 
@@ -3474,6 +3485,11 @@  class RepoFilter(object):
 
   def _tweak_tag(self, tag):
     # Tweak the tag message according to callbacks
+    if self._args.replace_message:
+      for literal, replacement in self._args.replace_message['literals']:
+        tag.message = tag.message.replace(literal, replacement)
+      for regex,   replacement in self._args.replace_message['regexes']:
+        tag.message = regex.sub(replacement, tag.message)
     if self._message_callback:
       tag.message = self._message_callback(tag.message)
 
diff --git a/t/t9390-filter-repo.sh b/t/t9390-filter-repo.sh
index 3f567e7..6d2d985 100755
--- a/t/t9390-filter-repo.sh
+++ b/t/t9390-filter-repo.sh
@@ -39,6 +39,7 @@  filter_testcase basic basic-filename --invert-paths --path-glob 't*en*'
 filter_testcase basic basic-numbers  --invert-paths --path-regex 'f.*e.*e'
 filter_testcase basic basic-mailmap  --mailmap ../t9390/sample-mailmap
 filter_testcase basic basic-replace  --replace-text ../t9390/sample-replace
+filter_testcase basic basic-message  --replace-message ../t9390/sample-message
 filter_testcase empty empty-keepme   --path keepme
 filter_testcase empty more-empty-keepme --path keepme --prune-empty=always \
 		                                   --prune-degenerate=always
diff --git a/t/t9390/basic-message b/t/t9390/basic-message
new file mode 100644
index 0000000..5b6b41b
--- /dev/null
+++ b/t/t9390/basic-message
@@ -0,0 +1,78 @@ 
+feature done
+blob
+mark :1
+data 8
+initial
+
+reset refs/heads/B
+commit refs/heads/B
+mark :2
+author Little O. Me <me@little.net> 1535228562 -0700
+committer Little O. Me <me@little.net> 1535228562 -0700
+data 9
+Modified
+M 100644 :1 filename
+M 100644 :1 ten
+M 100644 :1 twenty
+
+blob
+mark :3
+data 11
+twenty-mod
+
+commit refs/heads/B
+mark :4
+author Little 'ol Me <me@laptop.(none)> 1535229544 -0700
+committer Little 'ol Me <me@laptop.(none)> 1535229544 -0700
+data 18
+add the number 20
+from :2
+M 100644 :3 twenty
+
+blob
+mark :5
+data 8
+ten-mod
+
+commit refs/heads/A
+mark :6
+author Little O. Me <me@machine52.little.net> 1535229523 -0700
+committer Little O. Me <me@machine52.little.net> 1535229523 -0700
+data 8
+add ten
+from :2
+M 100644 :5 ten
+
+commit refs/heads/master
+mark :7
+author Lit.e Me <me@fire.com> 1535229559 -0700
+committer Lit.e Me <me@fire.com> 1535229580 -0700
+data 24
+Merge branch 'A' into B
+from :4
+merge :6
+M 100644 :5 ten
+
+blob
+mark :8
+data 6
+final
+
+commit refs/heads/master
+mark :9
+author Little Me <me@bigcompany.com> 1535229601 -0700
+committer Little Me <me@bigcompany.com> 1535229601 -0700
+data 9
+whatever
+from :7
+M 100644 :8 filename
+M 100644 :8 ten
+M 100644 :8 twenty
+
+tag v1.0
+from :9
+tagger Little John <second@merry.men> 1535229618 -0700
+data 15
+version one :)
+
+done
diff --git a/t/t9390/sample-message b/t/t9390/sample-message
new file mode 100644
index 0000000..0412c3c
--- /dev/null
+++ b/t/t9390/sample-message
@@ -0,0 +1,4 @@ 
+Initial==>Modified
+regex:tw.nty==>the number 20
+v1.0==>version one!
+regex:!$==> :)