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authorJohan Herland <johan@herland.net>2014-11-12 00:40:13 (GMT)
committerJunio C Hamano <gitster@pobox.com>2014-11-12 18:59:50 (GMT)
commit52694cdabbf68f19c8289416e7bb3bbef41d8d27 (patch)
treec353f2d10446ca0927e60b9479a9dc1eaeed75e7 /builtin/notes.c
parentb0de56c6a5bb41da71babafefc9207b0fc211d66 (diff)
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builtin/notes: split create_note() to clarify add vs. remove logic
create_note() has a non-trivial interface, and comprises three loosely related parts: 1. launching the editor with the note contents, if needed 2. appending to an existing note, if append_only was given 3. adding or removing the resulting note, based on whether it's non-empty Split it along those lines to make the logic clearer: The first part goes into a new function - prepare_note_data(), with a simpler interface. The second part is moved into append_edit(), which is the only user of this code. Finally, the add vs. remove decision is moved into the callers (add() and append_edit()), keeping the logic for writing the actual note object in a separate function: write_note_data(). Suggested-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin/notes.c')
-rw-r--r--builtin/notes.c103
1 files changed, 54 insertions, 49 deletions
diff --git a/builtin/notes.c b/builtin/notes.c
index acdedbd..ed32d63 100644
--- a/builtin/notes.c
+++ b/builtin/notes.c
@@ -159,9 +159,8 @@ static void write_commented_object(int fd, const unsigned char *object)
sha1_to_hex(object));
}
-static void create_note(const unsigned char *object, struct note_data *d,
- int append_only, const unsigned char *prev,
- unsigned char *result)
+static void prepare_note_data(const unsigned char *object, struct note_data *d,
+ const unsigned char *old_note)
{
if (d->use_editor || !d->given) {
int fd;
@@ -175,8 +174,8 @@ static void create_note(const unsigned char *object, struct note_data *d,
if (d->given)
write_or_die(fd, d->buf.buf, d->buf.len);
- else if (prev && !append_only)
- copy_obj_to_fd(fd, prev);
+ else if (old_note)
+ copy_obj_to_fd(fd, old_note);
strbuf_addch(&buf, '\n');
strbuf_add_commented_lines(&buf, note_template, strlen(note_template));
@@ -194,33 +193,16 @@ static void create_note(const unsigned char *object, struct note_data *d,
}
stripspace(&d->buf, 1);
}
+}
- if (prev && append_only) {
- /* Append buf to previous note contents */
- unsigned long size;
- enum object_type type;
- char *prev_buf = read_sha1_file(prev, &type, &size);
-
- strbuf_grow(&d->buf, size + 1);
- if (d->buf.len && prev_buf && size)
- strbuf_insert(&d->buf, 0, "\n", 1);
- if (prev_buf && size)
- strbuf_insert(&d->buf, 0, prev_buf, size);
- free(prev_buf);
- }
-
- if (!d->buf.len) {
- fprintf(stderr, _("Removing note for object %s\n"),
- sha1_to_hex(object));
- hashclr(result);
- } else {
- if (write_sha1_file(d->buf.buf, d->buf.len, blob_type, result)) {
- error(_("unable to write note object"));
- if (d->edit_path)
- error(_("The note contents have been left in %s"),
- d->edit_path);
- exit(128);
- }
+static void write_note_data(struct note_data *d, unsigned char *sha1)
+{
+ if (write_sha1_file(d->buf.buf, d->buf.len, blob_type, sha1)) {
+ error(_("unable to write note object"));
+ if (d->edit_path)
+ error(_("The note contents have been left in %s"),
+ d->edit_path);
+ exit(128);
}
}
@@ -403,7 +385,6 @@ static int add(int argc, const char **argv, const char *prefix)
const char *object_ref;
struct notes_tree *t;
unsigned char object[20], new_note[20];
- char logmsg[100];
const unsigned char *note;
struct note_data d = { 0, 0, NULL, STRBUF_INIT };
struct option options[] = {
@@ -463,17 +444,20 @@ static int add(int argc, const char **argv, const char *prefix)
sha1_to_hex(object));
}
- create_note(object, &d, 0, note, new_note);
- free_note_data(&d);
-
- if (is_null_sha1(new_note))
+ prepare_note_data(object, &d, note);
+ if (d.buf.len) {
+ write_note_data(&d, new_note);
+ if (add_note(t, object, new_note, combine_notes_overwrite))
+ die("BUG: combine_notes_overwrite failed");
+ commit_notes(t, "Notes added by 'git notes add'");
+ } else {
+ fprintf(stderr, _("Removing note for object %s\n"),
+ sha1_to_hex(object));
remove_note(t, object);
- else if (add_note(t, object, new_note, combine_notes_overwrite))
- die("BUG: combine_notes_overwrite failed");
+ commit_notes(t, "Notes removed by 'git notes add'");
+ }
- snprintf(logmsg, sizeof(logmsg), "Notes %s by 'git notes %s'",
- is_null_sha1(new_note) ? "removed" : "added", "add");
- commit_notes(t, logmsg);
+ free_note_data(&d);
free_notes(t);
return 0;
}
@@ -602,17 +586,38 @@ static int append_edit(int argc, const char **argv, const char *prefix)
t = init_notes_check(argv[0]);
note = get_note(t, object);
- create_note(object, &d, !edit, note, new_note);
- free_note_data(&d);
+ prepare_note_data(object, &d, edit ? note : NULL);
- if (is_null_sha1(new_note))
- remove_note(t, object);
- else if (add_note(t, object, new_note, combine_notes_overwrite))
- die("BUG: combine_notes_overwrite failed");
+ if (note && !edit) {
+ /* Append buf to previous note contents */
+ unsigned long size;
+ enum object_type type;
+ char *prev_buf = read_sha1_file(note, &type, &size);
+
+ strbuf_grow(&d.buf, size + 1);
+ if (d.buf.len && prev_buf && size)
+ strbuf_insert(&d.buf, 0, "\n", 1);
+ if (prev_buf && size)
+ strbuf_insert(&d.buf, 0, prev_buf, size);
+ free(prev_buf);
+ }
- snprintf(logmsg, sizeof(logmsg), "Notes %s by 'git notes %s'",
- is_null_sha1(new_note) ? "removed" : "added", argv[0]);
+ if (d.buf.len) {
+ write_note_data(&d, new_note);
+ if (add_note(t, object, new_note, combine_notes_overwrite))
+ die("BUG: combine_notes_overwrite failed");
+ snprintf(logmsg, sizeof(logmsg), "Notes added by 'git notes %s'",
+ argv[0]);
+ } else {
+ fprintf(stderr, _("Removing note for object %s\n"),
+ sha1_to_hex(object));
+ remove_note(t, object);
+ snprintf(logmsg, sizeof(logmsg), "Notes removed by 'git notes %s'",
+ argv[0]);
+ }
commit_notes(t, logmsg);
+
+ free_note_data(&d);
free_notes(t);
return 0;
}