From: John Passaro <john.a.passaro@xxxxxxxxx>
git-tag supports interpreting trailers from an annotated tag message,
using --list --format="%(trailers)". However, the available methods to
add a trailer to a tag message (namely -F or --editor) are not as
ergonomic.
In a previous patch, we moved git-commit's implementation of its
--trailer option to the trailer.h API. Let's use that new function to
teach git-tag the same --trailer option, emulating as much of
git-commit's behavior as much as possible.
Helped-by: Patrick Steinhardt <ps@xxxxxx>
Signed-off-by: John Passaro <john.a.passaro@xxxxxxxxx>
---
Documentation/git-tag.txt | 16 +++++-
builtin/tag.c | 38 ++++++++++---
t/t7004-tag.sh | 114 ++++++++++++++++++++++++++++++++++++++
3 files changed, 157 insertions(+), 11 deletions(-)
diff --git a/Documentation/git-tag.txt b/Documentation/git-tag.txt
index 5fe519c31ec..4494729f5e1 100644
--- a/Documentation/git-tag.txt
+++ b/Documentation/git-tag.txt
@@ -10,6 +10,7 @@ SYNOPSIS
--------
[verse]
'git tag' [-a | -s | -u <key-id>] [-f] [-m <msg> | -F <file>] [-e]
+ [(--trailer <token>[(=|:)<value>])...]
<tagname> [<commit> | <object>]
'git tag' -d <tagname>...
'git tag' [-n[<num>]] -l [--contains <commit>] [--no-contains <commit>]
@@ -31,8 +32,8 @@ creates a 'tag' object, and requires a tag message. Unless
`-m <msg>` or `-F <file>` is given, an editor is started for the user to type
in the tag message.
-If `-m <msg>` or `-F <file>` is given and `-a`, `-s`, and `-u <key-id>`
-are absent, `-a` is implied.
+If `-m <msg>` or `-F <file>` or `--trailer <token>[=<value>]` is given
+and `-a`, `-s`, and `-u <key-id>` are absent, `-a` is implied.
Otherwise, a tag reference that points directly at the given object
(i.e., a lightweight tag) is created.
@@ -178,6 +179,17 @@ This option is only applicable when listing tags without annotation lines.
Implies `-a` if none of `-a`, `-s`, or `-u <key-id>`
is given.
+--trailer <token>[(=|:)<value>]::
+ Specify a (<token>, <value>) pair that should be applied as a
+ trailer. (e.g. `git tag --trailer "Custom-Key: value"`
+ will add a "Custom-Key" trailer to the tag message.)
+ The `trailer.*` configuration variables
+ (linkgit:git-interpret-trailers[1]) can be used to define if
+ a duplicated trailer is omitted, where in the run of trailers
+ each trailer would appear, and other details.
+ The trailers can be extracted in `git tag --list`, using
+ `--format="%(trailers)"` placeholder.
+
-e::
--edit::
The message taken from file with `-F` and command line with
diff --git a/builtin/tag.c b/builtin/tag.c
index 9a33cb50b45..01b19a5b6c9 100644
--- a/builtin/tag.c
+++ b/builtin/tag.c
@@ -28,9 +28,11 @@
#include "date.h"
#include "write-or-die.h"
#include "object-file-convert.h"
+#include "trailer.h"
static const char * const git_tag_usage[] = {
N_("git tag [-a | -s | -u <key-id>] [-f] [-m <msg> | -F <file>] [-e]\n"
+ " [(--trailer <token>[(=|:)<value>])...]\n"
" <tagname> [<commit> | <object>]"),
N_("git tag -d <tagname>..."),
N_("git tag [-n[<num>]] -l [--contains <commit>] [--no-contains <commit>]\n"
@@ -290,10 +292,12 @@ static const char message_advice_nested_tag[] =
static void create_tag(const struct object_id *object, const char *object_ref,
const char *tag,
struct strbuf *buf, struct create_tag_options *opt,
- struct object_id *prev, struct object_id *result, char *path)
+ struct object_id *prev, struct object_id *result,
+ struct strvec *trailer_args, char *path)
{
enum object_type type;
struct strbuf header = STRBUF_INIT;
+ int should_edit;
type = oid_object_info(the_repository, object, NULL);
if (type <= OBJ_NONE)
@@ -313,13 +317,15 @@ static void create_tag(const struct object_id *object, const char *object_ref,
tag,
git_committer_info(IDENT_STRICT));
- if (!opt->message_given || opt->use_editor) {
+ should_edit = opt->use_editor || !opt->message_given;
+ if (should_edit || trailer_args->nr) {
int fd;
/* write the template message before editing: */
fd = xopen(path, O_CREAT | O_TRUNC | O_WRONLY, 0600);
- if (opt->message_given) {
+ if (opt->message_given && buf->len) {
+ strbuf_complete(buf, '\n');
write_or_die(fd, buf->buf, buf->len);
strbuf_reset(buf);
} else if (!is_null_oid(prev)) {
@@ -338,10 +344,19 @@ static void create_tag(const struct object_id *object, const char *object_ref,
}
close(fd);
- if (launch_editor(path, buf, NULL)) {
- fprintf(stderr,
- _("Please supply the message using either -m or -F option.\n"));
- exit(1);
+ if (trailer_args->nr && amend_file_with_trailers(path, trailer_args))
+ die(_("unable to pass trailers to --trailers"));
+
+ if (should_edit) {
+ if (launch_editor(path, buf, NULL)) {
+ fprintf(stderr,
+ _("Please supply the message using either -m or -F option.\n"));
+ exit(1);
+ }
+ } else if (trailer_args->nr) {
+ strbuf_reset(buf);
+ if (strbuf_read_file(buf, path, 0) < 0)
+ die_errno(_("failed to read '%s'"), path);
}
}
@@ -463,6 +478,7 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
struct ref_sorting *sorting;
struct string_list sorting_options = STRING_LIST_INIT_DUP;
struct ref_format format = REF_FORMAT_INIT;
+ struct strvec trailer_args = STRVEC_INIT;
int icase = 0;
int edit_flag = 0;
struct option options[] = {
@@ -479,6 +495,8 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
OPT_CALLBACK_F('m', "message", &msg, N_("message"),
N_("tag message"), PARSE_OPT_NONEG, parse_msg_arg),
OPT_FILENAME('F', "file", &msgfile, N_("read message from file")),
+ OPT_PASSTHRU_ARGV(0, "trailer", &trailer_args, N_("trailer"),
+ N_("add custom trailer(s)"), PARSE_OPT_NONEG),
OPT_BOOL('e', "edit", &edit_flag, N_("force edit of tag message")),
OPT_BOOL('s', "sign", &opt.sign, N_("annotated and GPG-signed tag")),
OPT_CLEANUP(&cleanup_arg),
@@ -548,7 +566,8 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
opt.sign = 1;
set_signing_key(keyid);
}
- create_tag_object = (opt.sign || annotate || msg.given || msgfile);
+ create_tag_object = (opt.sign || annotate || msg.given || msgfile ||
+ edit_flag || trailer_args.nr);
if ((create_tag_object || force) && (cmdmode != 0))
usage_with_options(git_tag_usage, options);
@@ -654,7 +673,7 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
opt.sign = 1;
path = git_pathdup("TAG_EDITMSG");
create_tag(&object, object_ref, tag, &buf, &opt, &prev, &object,
- path);
+ &trailer_args, path);
}
transaction = ref_transaction_begin(&err);
@@ -686,6 +705,7 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
strbuf_release(&reflog_msg);
strbuf_release(&msg.buf);
strbuf_release(&err);
+ strvec_clear(&trailer_args);
free(msgfile);
return ret;
}
diff --git a/t/t7004-tag.sh b/t/t7004-tag.sh
index 696866d7794..fa6336edf98 100755
--- a/t/t7004-tag.sh
+++ b/t/t7004-tag.sh
@@ -668,6 +668,115 @@ test_expect_success \
test_cmp expect actual
'
+# trailers
+
+test_expect_success 'create tag with -m and --trailer' '
+ get_tag_header tag-with-inline-message-and-trailers $commit commit $time >expect &&
+ cat >>expect <<-\EOF &&
+ create tag with trailers
+
+ my-trailer: here
+ alt-trailer: there
+ EOF
+ git tag -m "create tag with trailers" \
+ --trailer my-trailer=here \
+ --trailer alt-trailer=there \
+ tag-with-inline-message-and-trailers &&
+ get_tag_msg tag-with-inline-message-and-trailers >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'list tag extracting trailers' '
+ cat >expect <<-\EOF &&
+ my-trailer: here
+ alt-trailer: there
+
+ EOF
+ git tag --list --format="%(trailers)" tag-with-inline-message-and-trailers >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'create tag with -F and --trailer' '
+ echo "create tag from message file using --trailer" >messagefilewithnotrailers &&
+ get_tag_header tag-with-file-message-and-trailers $commit commit $time >expect &&
+ cat >>expect <<-\EOF &&
+ create tag from message file using --trailer
+
+ my-trailer: here
+ alt-trailer: there
+ EOF
+ git tag -F messagefilewithnotrailers \
+ --trailer my-trailer=here \
+ --trailer alt-trailer=there \
+ tag-with-file-message-and-trailers &&
+ get_tag_msg tag-with-file-message-and-trailers >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'create tag with -m and --trailer and --edit' '
+ write_script fakeeditor <<-\EOF &&
+ sed -e "1s/^/EDITED: /g" <"$1" >"$1-"
+ mv "$1-" "$1"
+ EOF
+ get_tag_header tag-with-edited-inline-message-and-trailers $commit commit $time >expect &&
+ cat >>expect <<-\EOF &&
+ EDITED: create tag with trailers
+
+ my-trailer: here
+ alt-trailer: there
+ EOF
+ GIT_EDITOR=./fakeeditor git tag --edit \
+ -m "create tag with trailers" \
+ --trailer my-trailer=here \
+ --trailer alt-trailer=there \
+ tag-with-edited-inline-message-and-trailers &&
+ get_tag_msg tag-with-edited-inline-message-and-trailers >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'create tag with -F and --trailer and --edit' '
+ echo "create tag from message file using --trailer" >messagefilewithnotrailers &&
+ get_tag_header tag-with-edited-file-message-and-trailers $commit commit $time >expect &&
+ cat >>expect <<-\EOF &&
+ EDITED: create tag from message file using --trailer
+
+ my-trailer: here
+ alt-trailer: there
+ EOF
+ GIT_EDITOR=./fakeeditor git tag --edit \
+ -F messagefilewithnotrailers \
+ --trailer my-trailer=here \
+ --trailer alt-trailer=there \
+ tag-with-edited-file-message-and-trailers &&
+ get_tag_msg tag-with-edited-file-message-and-trailers >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'create annotated tag and force editor when only --trailer is given' '
+ write_script fakeeditor <<-\EOF &&
+ echo "add a line" >"$1-"
+ cat <"$1" >>"$1-"
+ mv "$1-" "$1"
+ EOF
+ get_tag_header tag-with-trailers-and-no-message $commit commit $time >expect &&
+ cat >>expect <<-\EOF &&
+ add a line
+
+ my-trailer: here
+ alt-trailer: there
+ EOF
+ GIT_EDITOR=./fakeeditor git tag \
+ --trailer my-trailer=here \
+ --trailer alt-trailer=there \
+ tag-with-trailers-and-no-message &&
+ get_tag_msg tag-with-trailers-and-no-message >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'bad editor causes panic when only --trailer is given' '
+ test_must_fail env GIT_EDITOR=false git tag --trailer my-trailer=here tag-will-not-exist
+'
+
# listing messages for annotated non-signed tags:
test_expect_success \
@@ -810,6 +919,11 @@ test_expect_success 'git tag --format with ahead-behind' '
refs/tags/tag-lines 0 1 !
refs/tags/tag-one-line 0 1 !
refs/tags/tag-right 0 0 !
+ refs/tags/tag-with-edited-file-message-and-trailers 0 1 !
+ refs/tags/tag-with-edited-inline-message-and-trailers 0 1 !
+ refs/tags/tag-with-file-message-and-trailers 0 1 !
+ refs/tags/tag-with-inline-message-and-trailers 0 1 !
+ refs/tags/tag-with-trailers-and-no-message 0 1 !
refs/tags/tag-zero-lines 0 1 !
EOF
git tag -l --format="%(refname) %(ahead-behind:HEAD) !" >actual 2>err &&
--
gitgitgadget
