[PATCH] tag: add --author option

The tag command does not support the --author option as the
commit command. This adds the --author option to create
annotated tags with a different author.

Signed-off-by: Mathias Weber <redacted>
---
 builtin/tag.c |   26 +++++++++++++++++++++++---
 1 files changed, 23 insertions(+), 3 deletions(-)

diff --git a/builtin/tag.c b/builtin/tag.c
index fe7e5e5..416fa88 100644
--- a/builtin/tag.c
+++ b/builtin/tag.c

@@ -309,17 +309,34 @@ struct create_tag_options {
 
 static void create_tag(const unsigned char *object, const char *tag,
 		       struct strbuf *buf, struct create_tag_options *opt,
-		       unsigned char *prev, unsigned char *result)
+		       unsigned char *prev, unsigned char *result,
+		       const char *force_author)
 {
 	enum object_type type;
 	char header_buf[1024];
 	int header_len;
 	char *path = NULL;
+	char *name, *email;
+	const char *author_ident;
 
 	type = sha1_object_info(object, NULL);
 	if (type <= OBJ_NONE)
 	    die(_("bad object type."));
 
+	if (force_author) {
+		const char *lb = strstr(force_author, " <");
+		const char *rb = strchr(force_author, '>');
+
+		if (!lb || !rb)
+			die(_("malformed --author parameter"));
+			name = xstrndup(force_author, lb - force_author);
+			email = xstrndup(lb + 2, rb - (lb + 2));
+
+		author_ident = fmt_ident(name, email, getenv("GIT_AUTHOR_DATE"),
+				IDENT_ERROR_ON_NO_NAME);
+	} else
+		author_ident = git_committer_info(IDENT_ERROR_ON_NO_NAME);
+
 	header_len = snprintf(header_buf, sizeof(header_buf),
 			  "object %s\n"
 			  "type %s\n"

@@ -328,7 +345,7 @@ static void create_tag(const unsigned char *object, const char *tag,
 			  sha1_to_hex(object),
 			  typename(type),
 			  tag,
-			  git_committer_info(IDENT_ERROR_ON_NO_NAME));
+			  author_ident);
 
 	if (header_len > sizeof(header_buf) - 1)
 		die(_("tag header too big."));

@@ -438,6 +455,7 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
 		delete = 0, verify = 0;
 	const char *msgfile = NULL, *keyid = NULL;
 	struct msg_arg msg = { 0, STRBUF_INIT };
+	const char *force_author = NULL;
 	struct commit_list *with_commit = NULL;
 	struct option options[] = {
 		OPT_BOOLEAN('l', "list", &list, "list tag names"),

@@ -452,6 +470,8 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
 					"annotated tag, needs a message"),
 		OPT_CALLBACK('m', "message", &msg, "message",
 			     "tag message", parse_msg_arg),
+		OPT_STRING(0, "author", &force_author, "author",
+				 "override author for annotated tag"),
 		OPT_FILENAME('F', "file", &msgfile, "read message from file"),
 		OPT_BOOLEAN('s', "sign", &opt.sign, "annotated and GPG-signed tag"),
 		OPT_STRING(0, "cleanup", &cleanup_arg, "mode",

@@ -556,7 +576,7 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
 		die(_("Invalid cleanup mode %s"), cleanup_arg);
 
 	if (annotate)
-		create_tag(object, tag, &buf, &opt, prev, object);
+		create_tag(object, tag, &buf, &opt, prev, object, force_author);
 
 	lock = lock_any_ref_for_update(ref.buf, prev, 0);
 	if (!lock)

-- 
1.7.5.4

On 03/27/2012 06:00 PM, Mathias Weber wrote:

The tag command does not support the --author option as the
commit command. This adds the --author option to create
annotated tags with a different author.

Consistency is good.

This part is identical to builtin/commit.c, it would be nice to refactor 
it into a function.

Zbyszek

On 27.03.2012 19:29, Zbigniew Jędrzejewski-Szmek wrote:

On 03/27/2012 06:00 PM, Mathias Weber wrote:

quoted

The tag command does not support the --author option as the
commit command. This adds the --author option to create
annotated tags with a different author.

Consistency is good.

It would be good but during the rework of the patch I realized that for
the tag the committer is and should be used and not the author.
Therefore it is fine that this option isn't available. I'm sorry
bothering you.

Thanks for your help.

Mathias

quoted

Signed-off-by: Mathias Weber<redacted>
---
  builtin/tag.c |   26 +++++++++++++++++++++++---
  1 files changed, 23 insertions(+), 3 deletions(-)

diff --git a/builtin/tag.c b/builtin/tag.c
index fe7e5e5..416fa88 100644
--- a/builtin/tag.c
+++ b/builtin/tag.c

@@ -309,17 +309,34 @@ struct create_tag_options {

  static void create_tag(const unsigned char *object, const char *tag,
                 struct strbuf *buf, struct create_tag_options *opt,
-               unsigned char *prev, unsigned char *result)
+               unsigned char *prev, unsigned char *result,
+               const char *force_author)
  {
      enum object_type type;
      char header_buf[1024];
      int header_len;
      char *path = NULL;
+    char *name, *email;
+    const char *author_ident;

      type = sha1_object_info(object, NULL);
      if (type<= OBJ_NONE)
          die(_("bad object type."));

+    if (force_author) {
+        const char *lb = strstr(force_author, "<");
+        const char *rb = strchr(force_author, '>');
+
+        if (!lb || !rb)
+            die(_("malformed --author parameter"));
+            name = xstrndup(force_author, lb - force_author);
+            email = xstrndup(lb + 2, rb - (lb + 2));

This part is identical to builtin/commit.c, it would be nice to refactor
it into a function.

Zbyszek

quoted

+
+        author_ident = fmt_ident(name, email, getenv("GIT_AUTHOR_DATE"),
+                IDENT_ERROR_ON_NO_NAME);
+    } else
+        author_ident = git_committer_info(IDENT_ERROR_ON_NO_NAME);
+
      header_len = snprintf(header_buf, sizeof(header_buf),
                "object %s\n"
                "type %s\n"

@@ -328,7 +345,7 @@ static void create_tag(const unsigned char

*object, const char *tag,
                sha1_to_hex(object),
                typename(type),
                tag,
-              git_committer_info(IDENT_ERROR_ON_NO_NAME));
+              author_ident);

      if (header_len>  sizeof(header_buf) - 1)
          die(_("tag header too big."));

@@ -438,6 +455,7 @@ int cmd_tag(int argc, const char **argv, const

char *prefix)
          delete = 0, verify = 0;
      const char *msgfile = NULL, *keyid = NULL;
      struct msg_arg msg = { 0, STRBUF_INIT };
+    const char *force_author = NULL;
      struct commit_list *with_commit = NULL;
      struct option options[] = {
          OPT_BOOLEAN('l', "list",&list, "list tag names"),

@@ -452,6 +470,8 @@ int cmd_tag(int argc, const char **argv, const

char *prefix)
                      "annotated tag, needs a message"),
          OPT_CALLBACK('m', "message",&msg, "message",
                   "tag message", parse_msg_arg),
+        OPT_STRING(0, "author",&force_author, "author",
+                 "override author for annotated tag"),
          OPT_FILENAME('F', "file",&msgfile, "read message from file"),
          OPT_BOOLEAN('s', "sign",&opt.sign, "annotated and GPG-signed
tag"),
          OPT_STRING(0, "cleanup",&cleanup_arg, "mode",

@@ -556,7 +576,7 @@ int cmd_tag(int argc, const char **argv, const

char *prefix)
          die(_("Invalid cleanup mode %s"), cleanup_arg);

      if (annotate)
-        create_tag(object, tag,&buf,&opt, prev, object);
+        create_tag(object, tag,&buf,&opt, prev, object, force_author);

      lock = lock_any_ref_for_update(ref.buf, prev, 0);
      if (!lock)