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split_ident_line(): make best effort when parsing author/committer line

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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>
This commit is contained in:
Junio C Hamano 2012-08-31 14:54:18 -07:00
parent b52183179b
commit e27ddb6456
2 changed files with 20 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
builtin/commit.c
View File

@ -478,6 +478,20 @@ static void export_one(const char *var, const char *s, const char *e, int hack)
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 @@ static void determine_author_info(struct strbuf *author_ident)
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, '@');

6
ident.c
View File

@ -210,8 +210,10 @@ int split_ident_line(struct ident_split *split, const char *line, int len)
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 == '>') {