split_ident_line(): make best effort when parsing author/committer line
Commits made by ancient version of Git allowed committer without
human readable name, like this (00213b17c in the kernel history):
tree 6947dba41f8b0e7fe7bccd41a4840d6de6a27079
parent 352dd1df32e672be4cff71132eb9c06a257872fe
author Petr Baudis <pasky@ucw.cz> 1135223044 +0100
committer <sam@mars.ravnborg.org> 1136151043 +0100
kconfig: Remove support for lxdialog --checklist
...
Signed-off-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
When fed such a commit, --format='%ci' fails to parse it, and gives
back an empty string. Update the split_ident_line() to be a bit
more lenient when parsing, but make sure the caller that wants to
pick up sane value from its return value does its own validation.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/builtin/commit.c b/builtin/commit.c
index 20cef95..62028e7 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -478,6 +478,20 @@
strbuf_release(&buf);
}
+static int sane_ident_split(struct ident_split *person)
+{
+ if (!person->name_begin || !person->name_end ||
+ person->name_begin == person->name_end)
+ return 0; /* no human readable name */
+ if (!person->mail_begin || !person->mail_end ||
+ person->mail_begin == person->mail_end)
+ return 0; /* no usable mail */
+ if (!person->date_begin || !person->date_end ||
+ !person->tz_begin || !person->tz_end)
+ return 0;
+ return 1;
+}
+
static void determine_author_info(struct strbuf *author_ident)
{
char *name, *email, *date;
@@ -530,7 +544,8 @@
if (force_date)
date = force_date;
strbuf_addstr(author_ident, fmt_ident(name, email, date, IDENT_STRICT));
- if (!split_ident_line(&author, author_ident->buf, author_ident->len)) {
+ if (!split_ident_line(&author, author_ident->buf, author_ident->len) &&
+ sane_ident_split(&author)) {
export_one("GIT_AUTHOR_NAME", author.name_begin, author.name_end, 0);
export_one("GIT_AUTHOR_EMAIL", author.mail_begin, author.mail_end, 0);
export_one("GIT_AUTHOR_DATE", author.date_begin, author.tz_end, '@');
diff --git a/ident.c b/ident.c
index 443c075..484e0a9 100644
--- a/ident.c
+++ b/ident.c
@@ -210,8 +210,10 @@
split->name_end = cp + 1;
break;
}
- if (!split->name_end)
- return status;
+ if (!split->name_end) {
+ /* no human readable name */
+ split->name_end = split->name_begin;
+ }
for (cp = split->mail_begin; cp < line + len; cp++)
if (*cp == '>') {
