Re: [PATCH v6 3/3] notes.c: introduce '--separator=<paragraph-break>' option

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Teng Long <dyroneteng@xxxxxxxxx> writes:

> +static void parse_messages(struct string_list *messages, struct note_data *d)
> +{
> +	size_t i;
> +	for (i = 0; i < messages->nr; i++) {
> +		if (d->buf.len)
> +			insert_separator(&d->buf, d->buf.len);
> +		strbuf_insertstr(&d->buf, d->buf.len,
> +				 messages->items[i].string);
> +		strbuf_stripspace(&d->buf, 0);
> +		d->given = 1;
> +	}
> +}

The two callers of this function prepares the string_list, and have
this function consume it by concatenating its contents to d->buf.
After calling this function, neither of them talks about messages,
which means we are leaking the strings kept in the string_list.

I could eject the topic from today's integration run (because the
topic is not ready to be merged to 'next' as-is; "-C/-c" codepaths
need to be adjusted, at least), but as I took a look already, I'll
queue this fix-up on top of the topic for now.  Feel free to squash
it in (or address the leaks in your own way) when sending in an
update.

Thanks.

 builtin/notes.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git c/builtin/notes.c w/builtin/notes.c
index 97c18fc02f..cd7af76e2f 100644
--- c/builtin/notes.c
+++ w/builtin/notes.c
@@ -220,7 +220,8 @@ static void insert_separator(struct strbuf *message, size_t pos)
 		strbuf_insertf(message, pos, "%s%s", separator, "\n");
 }
 
-static void parse_messages(struct string_list *messages, struct note_data *d)
+/* Consume messages and append them into d->buf */
+static void concat_messages(struct string_list *messages, struct note_data *d)
 {
 	size_t i;
 	for (i = 0; i < messages->nr; i++) {
@@ -231,6 +232,7 @@ static void parse_messages(struct string_list *messages, struct note_data *d)
 		strbuf_stripspace(&d->buf, 0);
 		d->given = 1;
 	}
+	string_list_clear(messages, 0);
 }
 
 static int parse_msg_arg(const struct option *opt, const char *arg, int unset)
@@ -451,7 +453,7 @@ static int add(int argc, const char **argv, const char *prefix)
 		usage_with_options(git_notes_add_usage, options);
 	}
 
-	parse_messages(&messages, &d);
+	concat_messages(&messages, &d);
 	object_ref = argc > 1 ? argv[1] : "HEAD";
 
 	if (get_oid(object_ref, &object))
@@ -622,7 +624,7 @@ static int append_edit(int argc, const char **argv, const char *prefix)
 		usage_with_options(usage, options);
 	}
 
-	parse_messages(&messages, &d);
+	concat_messages(&messages, &d);
 
 	if (d.given && edit)
 		fprintf(stderr, _("The -m/-F/-c/-C options have been deprecated "



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