We used to populate the subject of the cover letter generated by
git-format-patch with "*** SUBJECT HERE ***". However, if a user submits
multiple patchsets, they may want to keep a consistent subject between
rerolls.
If git-format-patch is run on a branch that has
`branch.<name>.coverSubject` defined, make the cover letter's subject be
that value instead of the generic "*** SUBJECT HERE ***".
In addition, add the `--cover-subject` option to override this setting.
Signed-off-by: Denton Liu <liu.denton@xxxxxxxxx>
---
Documentation/config/branch.txt | 4 ++++
Documentation/git-format-patch.txt | 12 ++++++++++++
branch.c | 5 +++++
branch.h | 5 +++++
builtin/log.c | 26 +++++++++++++++++++-------
t/t4014-format-patch.sh | 20 ++++++++++++++++++++
t/t9902-completion.sh | 5 ++++-
7 files changed, 69 insertions(+), 8 deletions(-)
diff --git a/Documentation/config/branch.txt b/Documentation/config/branch.txt
index 019d60ede2..2bff738982 100644
--- a/Documentation/config/branch.txt
+++ b/Documentation/config/branch.txt
@@ -100,3 +100,7 @@ branch.<name>.description::
`git branch --edit-description`. Branch description is
automatically added in the format-patch cover letter or
request-pull summary.
+
+branch.<name>.coverSubject::
+ When format-patch generates a cover letter, use the specified
+ subject for the cover letter instead of the generic template.
diff --git a/Documentation/git-format-patch.txt b/Documentation/git-format-patch.txt
index 7b71d4e2ed..af7883acbe 100644
--- a/Documentation/git-format-patch.txt
+++ b/Documentation/git-format-patch.txt
@@ -19,6 +19,7 @@ SYNOPSIS
[--start-number <n>] [--numbered-files]
[--in-reply-to=<Message-Id>] [--suffix=.<sfx>]
[--ignore-if-in-upstream]
+ [--cover-subject=<subject>]
[--rfc] [--subject-prefix=<Subject-Prefix>]
[(--reroll-count|-v) <n>]
[--to=<email>] [--cc=<email>]
@@ -170,6 +171,10 @@ will want to ensure that threading is disabled for `git send-email`.
patches being generated, and any patch that matches is
ignored.
+--cover-subject=<subject>::
+ Instead of using the default "*** SUBJECT HERE ***" subject for
+ the cover letter, use the given <subject>.
+
--subject-prefix=<Subject-Prefix>::
Instead of the standard '[PATCH]' prefix in the subject
line, instead use '[<Subject-Prefix>]'. This
@@ -346,6 +351,13 @@ attachments, and sign off patches with configuration variables.
coverletter = auto
------------
+In addition, for a specific branch, you can specify a custom cover
+letter subject.
+
+------------
+[branch "branch-name"]
+ coverSubject = "subject for branch-name only"
+------------
DISCUSSION
----------
diff --git a/branch.c b/branch.c
index 4b49976924..40d30b8fa7 100644
--- a/branch.c
+++ b/branch.c
@@ -182,6 +182,11 @@ int read_branch_desc(struct strbuf *buf, const char *branch_name)
return read_branch_config(buf, branch_name, "description");
}
+int read_branch_subject(struct strbuf *buf, const char *branch_name)
+{
+ return read_branch_config(buf, branch_name, "coversubject");
+}
+
/*
* Check if 'name' can be a valid name for a branch; die otherwise.
* Return 1 if the named branch already exists; return 0 otherwise.
diff --git a/branch.h b/branch.h
index 29c1afa4d0..6a8936bbc8 100644
--- a/branch.h
+++ b/branch.h
@@ -79,6 +79,11 @@ extern int install_branch_config(int flag, const char *local, const char *origin
*/
extern int read_branch_desc(struct strbuf *, const char *branch_name);
+/*
+ * Read branch subject
+ */
+extern int read_branch_subject(struct strbuf *, const char *branch_name);
+
/*
* Check if a branch is checked out in the main worktree or any linked
* worktree and die (with a message describing its checkout location) if
diff --git a/builtin/log.c b/builtin/log.c
index ab859f5904..6f19326aea 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -1034,13 +1034,14 @@ static void make_cover_letter(struct rev_info *rev, int use_stdout,
struct commit *origin,
int nr, struct commit **list,
const char *branch_name,
+ const char *subject,
int quiet)
{
const char *committer;
- const char *body = "*** SUBJECT HERE ***\n\n*** BLURB HERE ***\n";
- const char *msg;
+ const char *body = "*** BLURB HERE ***";
struct shortlog log;
struct strbuf sb = STRBUF_INIT;
+ struct strbuf subject_sb = STRBUF_INIT;
int i;
const char *encoding = "UTF-8";
int need_8bit_cte = 0;
@@ -1068,17 +1069,24 @@ static void make_cover_letter(struct rev_info *rev, int use_stdout,
if (!branch_name)
branch_name = find_branch_name(rev);
- msg = body;
+ if (!subject) {
+ if (branch_name && *branch_name && !read_branch_subject(&subject_sb, branch_name))
+ subject = subject_sb.buf;
+ else
+ subject = "*** SUBJECT HERE ***";
+ }
+
pp.fmt = CMIT_FMT_EMAIL;
pp.date_mode.type = DATE_RFC2822;
pp.rev = rev;
pp.print_email_subject = 1;
pp_user_info(&pp, NULL, &sb, committer, encoding);
- pp_title_line(&pp, &msg, &sb, encoding, need_8bit_cte);
- pp_remainder(&pp, &msg, &sb, 0);
+ pp_title_line(&pp, &subject, &sb, encoding, need_8bit_cte);
+ pp_remainder(&pp, &body, &sb, 0);
add_branch_description(&sb, branch_name);
fprintf(rev->diffopt.file, "%s\n", sb.buf);
+ strbuf_release(&subject_sb);
strbuf_release(&sb);
shortlog_init(&log);
@@ -1512,6 +1520,7 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
int no_binary_diff = 0;
int zero_commit = 0;
struct commit *origin = NULL;
+ const char *cover_subject = NULL;
const char *in_reply_to = NULL;
struct patch_ids ids;
struct strbuf buf = STRBUF_INIT;
@@ -1554,6 +1563,8 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
{ OPTION_CALLBACK, 0, "rfc", &rev, NULL,
N_("Use [RFC PATCH] instead of [PATCH]"),
PARSE_OPT_NOARG | PARSE_OPT_NONEG, rfc_callback },
+ OPT_STRING(0, "cover-subject", &cover_subject, N_("subject"),
+ N_("the subject for the cover letter")),
{ OPTION_CALLBACK, 0, "subject-prefix", &rev, N_("prefix"),
N_("Use [<prefix>] instead of [PATCH]"),
PARSE_OPT_NONEG, subject_prefix_callback },
@@ -1617,8 +1628,9 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
extra_to.strdup_strings = 1;
extra_cc.strdup_strings = 1;
init_log_defaults();
- git_config(git_format_config, NULL);
repo_init_revisions(the_repository, &rev, prefix);
+
+ git_config(git_format_config, NULL);
rev.commit_format = CMIT_FMT_EMAIL;
rev.expand_tabs_in_log_default = 0;
rev.verbose_header = 1;
@@ -1893,7 +1905,7 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
if (thread)
gen_message_id(&rev, "cover");
make_cover_letter(&rev, use_stdout,
- origin, nr, list, branch_name, quiet);
+ origin, nr, list, branch_name, cover_subject, quiet);
print_bases(&bases, rev.diffopt.file);
print_signature(rev.diffopt.file);
total++;
diff --git a/t/t4014-format-patch.sh b/t/t4014-format-patch.sh
index d05cd256c7..1cf4dfbce2 100755
--- a/t/t4014-format-patch.sh
+++ b/t/t4014-format-patch.sh
@@ -1463,6 +1463,26 @@ test_expect_success 'format patch ignores color.ui' '
test_cmp expect actual
'
+test_expect_success 'cover letter with config subject' '
+ test_config branch.rebuild-1.coverSubject "config subject" &&
+ git checkout rebuild-1 &&
+ git format-patch --stdout --cover-letter master >actual &&
+ grep "Subject: \[PATCH 0/2\] config subject" actual
+'
+
+test_expect_success 'cover letter with command-line subject' '
+ git checkout rebuild-1 &&
+ git format-patch --stdout --cover-letter --cover-subject "command-line subject" master >actual &&
+ grep "Subject: \[PATCH 0/2\] command-line subject" actual
+'
+
+test_expect_success 'cover letter with command-line subject overrides config' '
+ test_config branch.rebuild-1.coverSubject "config subject" &&
+ git checkout rebuild-1 &&
+ git format-patch --stdout --cover-letter --cover-subject "command-line subject" master >actual &&
+ grep "Subject: \[PATCH 0/2\] command-line subject" actual
+'
+
test_expect_success 'cover letter using branch description (1)' '
git checkout rebuild-1 &&
test_config branch.rebuild-1.description hello &&
diff --git a/t/t9902-completion.sh b/t/t9902-completion.sh
index f5e21bf970..0da92179da 100755
--- a/t/t9902-completion.sh
+++ b/t/t9902-completion.sh
@@ -1542,7 +1542,10 @@ test_expect_success 'complete tree filename with metacharacters' '
'
test_expect_success PERL 'send-email' '
- test_completion "git send-email --cov" "--cover-letter " &&
+ test_completion "git send-email --cov" <<-\EOF &&
+ --cover-letter Z
+ --cover-subject=Z
+ EOF
test_completion "git send-email ma" "master "
'
--
2.21.0.1049.geb646f7864
