Rather than parsing the header manually to find the "author"
field, and then parsing its sub-parts, let's use
find_commit_header and split_ident_line. This is shorter and
easier to read, and should do a more careful parsing job.
For example, the current parser could find the end-of-email
right-bracket across a newline (for a malformed commit), and
calculate a bogus gigantic length for the date (by using
"eol - rb").
As a bonus, this also plugs a memory leak when we pull the
date field from an existing commit (we still leak the name
and email buffers, which will be fixed in a later commit).
Signed-off-by: Jeff King <p...@peff.net>
---
builtin/commit.c | 51 ++++++++++++++++++++++-----------------------------
1 file changed, 22 insertions(+), 29 deletions(-)
diff --git a/builtin/commit.c b/builtin/commit.c
index 8da0a9f..57b046b 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -546,42 +546,35 @@ static void determine_author_info(struct strbuf
*author_ident)
date = getenv("GIT_AUTHOR_DATE");
if (author_message) {
- const char *a, *lb, *rb, *eol;
- size_t len;
+ struct ident_split ident;
+ unsigned long len;
+ const char *a;
- a = strstr(author_message_buffer, "\nauthor ");
+ a = find_commit_header(author_message_buffer, "author", &len);
if (!a)
- die(_("invalid commit: %s"), author_message);
-
- lb = strchrnul(a + strlen("\nauthor "), '<');
- rb = strchrnul(lb, '>');
- eol = strchrnul(rb, '\n');
- if (!*lb || !*rb || !*eol)
- die(_("invalid commit: %s"), author_message);
-
- if (lb == a + strlen("\nauthor "))
- /* \nauthor <f...@example.com> */
- name = xcalloc(1, 1);
- else
- name = xmemdupz(a + strlen("\nauthor "),
- (lb - strlen(" ") -
- (a + strlen("\nauthor "))));
- email = xmemdupz(lb + strlen("<"), rb - (lb + strlen("<")));
- len = eol - (rb + strlen("> "));
- date = xmalloc(len + 2);
- *date = '@';
- memcpy(date + 1, rb + strlen("> "), len);
- date[len + 1] = '\0';
+ die(_("commit '%s' lacks author header"),
author_message);
+ if (split_ident_line(&ident, a, len) < 0)
+ die(_("commit '%s' has malformed author line"),
author_message);
+
+ name = xmemdupz(ident.name_begin, ident.name_end -
ident.name_begin);
+ email = xmemdupz(ident.mail_begin, ident.mail_end -
ident.mail_begin);
+ if (ident.date_begin) {
+ strbuf_reset(&date_buf);
+ strbuf_addch(&date_buf, '@');
+ strbuf_add(&date_buf, ident.date_begin, ident.date_end
- ident.date_begin);
+ strbuf_addch(&date_buf, ' ');
+ strbuf_add(&date_buf, ident.tz_begin, ident.tz_end -
ident.tz_begin);
+ date = date_buf.buf;
+ }
}
if (force_author) {
- const char *lb = strstr(force_author, " <");
- const char *rb = strchr(force_author, '>');
+ struct ident_split ident;
- if (!lb || !rb)
+ if (split_ident_line(&ident, force_author,
strlen(force_author)) < 0)
die(_("malformed --author parameter"));
- name = xstrndup(force_author, lb - force_author);
- email = xstrndup(lb + 2, rb - (lb + 2));
+ name = xmemdupz(ident.name_begin, ident.name_end -
ident.name_begin);
+ email = xmemdupz(ident.mail_begin, ident.mail_end -
ident.mail_begin);
}
if (force_date) {
--
2.1.0.346.ga0367b9
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