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Merge branch 'jk/chopped-ident'
A commit object whose author or committer ident are malformed crashed some code that trusted that a name, an email and an timestamp can always be found in it. * jk/chopped-ident: blame: handle broken commit headers gracefully pretty: handle broken commit headers gracefully cat-file: print tags raw for "cat-file -p"
This commit is contained in:
Junio C Hamano
commit
703319313f
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@ -1375,10 +1375,15 @@ static void get_ac_line(const char *inbuf, const char *what,
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maillen = ident.mail_end - ident.mail_begin;
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mailbuf = ident.mail_begin;
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*time = strtoul(ident.date_begin, NULL, 10);
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if (ident.date_begin && ident.date_end)
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*time = strtoul(ident.date_begin, NULL, 10);
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else
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*time = 0;
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len = ident.tz_end - ident.tz_begin;
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strbuf_add(tz, ident.tz_begin, len);
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if (ident.tz_begin && ident.tz_end)
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strbuf_add(tz, ident.tz_begin, ident.tz_end - ident.tz_begin);
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else
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strbuf_addstr(tz, "(unknown)");
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/*
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* Now, convert both name and e-mail using mailmap
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@ -16,73 +16,6 @@
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#define BATCH 1
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#define BATCH_CHECK 2
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static void pprint_tag(const unsigned char *sha1, const char *buf, unsigned long size)
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{
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/* the parser in tag.c is useless here. */
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const char *endp = buf + size;
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const char *cp = buf;
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while (cp < endp) {
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char c = *cp++;
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if (c != '\n')
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continue;
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if (7 <= endp - cp && !memcmp("tagger ", cp, 7)) {
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const char *tagger = cp;
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/* Found the tagger line. Copy out the contents
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* of the buffer so far.
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*/
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write_or_die(1, buf, cp - buf);
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/*
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* Do something intelligent, like pretty-printing
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* the date.
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*/
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while (cp < endp) {
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if (*cp++ == '\n') {
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/* tagger to cp is a line
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* that has ident and time.
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*/
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const char *sp = tagger;
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char *ep;
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unsigned long date;
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long tz;
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while (sp < cp && *sp != '>')
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sp++;
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if (sp == cp) {
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/* give up */
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write_or_die(1, tagger,
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cp - tagger);
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break;
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}
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while (sp < cp &&
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!('0' <= *sp && *sp <= '9'))
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sp++;
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write_or_die(1, tagger, sp - tagger);
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date = strtoul(sp, &ep, 10);
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tz = strtol(ep, NULL, 10);
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sp = show_date(date, tz, 0);
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write_or_die(1, sp, strlen(sp));
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xwrite(1, "\n", 1);
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break;
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}
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}
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break;
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}
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if (cp < endp && *cp == '\n')
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/* end of header */
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break;
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}
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/* At this point, we have copied out the header up to the end of
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* the tagger line and cp points at one past \n. It could be the
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* next header line after the tagger line, or it could be another
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* \n that marks the end of the headers. We need to copy out the
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* remainder as is.
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*/
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if (cp < endp)
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write_or_die(1, cp, endp - cp);
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}
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static int cat_one_file(int opt, const char *exp_type, const char *obj_name)
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{
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unsigned char sha1[20];
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@ -133,10 +66,6 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name)
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buf = read_sha1_file(sha1, &type, &size);
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if (!buf)
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die("Cannot read object %s", obj_name);
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if (type == OBJ_TAG) {
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pprint_tag(sha1, buf, size);
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return 0;
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}
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/* otherwise just spit out the data */
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break;
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45
pretty.c
45
pretty.c
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@ -393,6 +393,19 @@ static void add_rfc2047(struct strbuf *sb, const char *line, size_t len,
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strbuf_addstr(sb, "?=");
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}
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static const char *show_ident_date(const struct ident_split *ident,
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enum date_mode mode)
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{
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unsigned long date = 0;
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int tz = 0;
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if (ident->date_begin && ident->date_end)
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date = strtoul(ident->date_begin, NULL, 10);
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if (ident->tz_begin && ident->tz_end)
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tz = strtol(ident->tz_begin, NULL, 10);
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return show_date(date, tz, mode);
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}
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void pp_user_info(const struct pretty_print_context *pp,
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const char *what, struct strbuf *sb,
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const char *line, const char *encoding)
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@ -401,12 +414,10 @@ void pp_user_info(const struct pretty_print_context *pp,
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struct strbuf mail;
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struct ident_split ident;
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int linelen;
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char *line_end, *date;
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char *line_end;
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const char *mailbuf, *namebuf;
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size_t namelen, maillen;
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int max_length = 78; /* per rfc2822 */
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unsigned long time;
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int tz;
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if (pp->fmt == CMIT_FMT_ONELINE)
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return;
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@ -438,8 +449,6 @@ void pp_user_info(const struct pretty_print_context *pp,
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strbuf_add(&name, namebuf, namelen);
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namelen = name.len + mail.len + 3; /* ' ' + '<' + '>' */
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time = strtoul(ident.date_begin, &date, 10);
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tz = strtol(date, NULL, 10);
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if (pp->fmt == CMIT_FMT_EMAIL) {
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strbuf_addstr(sb, "From: ");
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@ -472,13 +481,16 @@ void pp_user_info(const struct pretty_print_context *pp,
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switch (pp->fmt) {
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case CMIT_FMT_MEDIUM:
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strbuf_addf(sb, "Date: %s\n", show_date(time, tz, pp->date_mode));
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strbuf_addf(sb, "Date: %s\n",
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show_ident_date(&ident, pp->date_mode));
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break;
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case CMIT_FMT_EMAIL:
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strbuf_addf(sb, "Date: %s\n", show_date(time, tz, DATE_RFC2822));
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strbuf_addf(sb, "Date: %s\n",
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show_ident_date(&ident, DATE_RFC2822));
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break;
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case CMIT_FMT_FULLER:
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strbuf_addf(sb, "%sDate: %s\n", what, show_date(time, tz, pp->date_mode));
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strbuf_addf(sb, "%sDate: %s\n", what,
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show_ident_date(&ident, pp->date_mode));
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break;
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default:
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/* notin' */
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@ -688,8 +700,6 @@ static size_t format_person_part(struct strbuf *sb, char part,
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{
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/* currently all placeholders have same length */
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const int placeholder_len = 2;
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int tz;
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unsigned long date = 0;
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struct ident_split s;
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const char *name, *mail;
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size_t maillen, namelen;
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@ -716,30 +726,23 @@ static size_t format_person_part(struct strbuf *sb, char part,
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if (!s.date_begin)
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goto skip;
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date = strtoul(s.date_begin, NULL, 10);
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if (part == 't') { /* date, UNIX timestamp */
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strbuf_add(sb, s.date_begin, s.date_end - s.date_begin);
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return placeholder_len;
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}
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/* parse tz */
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tz = strtoul(s.tz_begin + 1, NULL, 10);
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if (*s.tz_begin == '-')
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tz = -tz;
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switch (part) {
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case 'd': /* date */
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strbuf_addstr(sb, show_date(date, tz, dmode));
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strbuf_addstr(sb, show_ident_date(&s, dmode));
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return placeholder_len;
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case 'D': /* date, RFC2822 style */
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strbuf_addstr(sb, show_date(date, tz, DATE_RFC2822));
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strbuf_addstr(sb, show_ident_date(&s, DATE_RFC2822));
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return placeholder_len;
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case 'r': /* date, relative */
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strbuf_addstr(sb, show_date(date, tz, DATE_RELATIVE));
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strbuf_addstr(sb, show_ident_date(&s, DATE_RELATIVE));
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return placeholder_len;
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case 'i': /* date, ISO 8601 */
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strbuf_addstr(sb, show_date(date, tz, DATE_ISO8601));
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strbuf_addstr(sb, show_ident_date(&s, DATE_ISO8601));
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return placeholder_len;
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}
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@ -134,15 +134,12 @@ tagger $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL>"
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tag_description="This is a tag"
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tag_content="$tag_header_without_timestamp 0000000000 +0000
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$tag_description"
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tag_pretty_content="$tag_header_without_timestamp Thu Jan 1 00:00:00 1970 +0000
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$tag_description"
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tag_sha1=$(echo_without_newline "$tag_content" | git mktag)
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tag_size=$(strlen "$tag_content")
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run_tests 'tag' $tag_sha1 $tag_size "$tag_content" "$tag_pretty_content" 1
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run_tests 'tag' $tag_sha1 $tag_size "$tag_content" "$tag_content" 1
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test_expect_success \
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"Reach a blob from a tag pointing to it" \
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42
t/t4212-log-corrupt.sh
Executable file
42
t/t4212-log-corrupt.sh
Executable file
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@ -0,0 +1,42 @@
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#!/bin/sh
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test_description='git log with invalid commit headers'
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. ./test-lib.sh
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test_expect_success 'setup' '
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test_commit foo &&
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git cat-file commit HEAD |
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sed "/^author /s/>/>-<>/" >broken_email.commit &&
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git hash-object -w -t commit broken_email.commit >broken_email.hash &&
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git update-ref refs/heads/broken_email $(cat broken_email.hash)
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'
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test_expect_success 'git log with broken author email' '
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{
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echo commit $(cat broken_email.hash)
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echo "Author: A U Thor <author@example.com>"
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echo "Date: Thu Jan 1 00:00:00 1970 +0000"
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echo
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echo " foo"
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} >expect.out &&
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: >expect.err &&
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git log broken_email >actual.out 2>actual.err &&
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test_cmp expect.out actual.out &&
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test_cmp expect.err actual.err
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'
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test_expect_success 'git log --format with broken author email' '
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echo "A U Thor+author@example.com+" >expect.out &&
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: >expect.err &&
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git log --format="%an+%ae+%ad" broken_email >actual.out 2>actual.err &&
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test_cmp expect.out actual.out &&
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test_cmp expect.err actual.err
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'
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test_done
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