Merge branch 'mc/prefix'
* mc/prefix: Avoid a useless prefix lookup in strbuf_expand()
This commit is contained in:
commit
356eff534c
178
pretty.c
178
pretty.c
@ -282,59 +282,59 @@ static char *logmsg_reencode(const struct commit *commit,
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return out;
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}
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static void format_person_part(struct strbuf *sb, char part,
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static size_t format_person_part(struct strbuf *sb, char part,
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const char *msg, int len)
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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 start, end, tz = 0;
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unsigned long date;
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unsigned long date = 0;
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char *ep;
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/* parse name */
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/* advance 'end' to point to email start delimiter */
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for (end = 0; end < len && msg[end] != '<'; end++)
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; /* do nothing */
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/*
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* If it does not even have a '<' and '>', that is
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* quite a bogus commit author and we discard it;
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* this is in line with add_user_info() that is used
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* in the normal codepath. When end points at the '<'
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* that we found, it should have matching '>' later,
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* which means start (beginning of email address) must
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* be strictly below len.
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*/
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start = end + 1;
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if (start >= len - 1)
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return;
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while (end > 0 && isspace(msg[end - 1]))
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end--;
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if (part == 'n') { /* name */
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strbuf_add(sb, msg, end);
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return;
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}
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/* parse email */
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for (end = start; end < len && msg[end] != '>'; end++)
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/*
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* When end points at the '<' that we found, it should have
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* matching '>' later, which means 'end' must be strictly
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* below len - 1.
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*/
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if (end >= len - 2)
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goto skip;
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if (part == 'n') { /* name */
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while (end > 0 && isspace(msg[end - 1]))
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end--;
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strbuf_add(sb, msg, end);
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return placeholder_len;
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}
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start = ++end; /* save email start position */
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/* advance 'end' to point to email end delimiter */
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for ( ; end < len && msg[end] != '>'; end++)
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; /* do nothing */
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if (end >= len)
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return;
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goto skip;
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if (part == 'e') { /* email */
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strbuf_add(sb, msg + start, end - start);
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return;
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return placeholder_len;
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}
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/* parse date */
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/* advance 'start' to point to date start delimiter */
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for (start = end + 1; start < len && isspace(msg[start]); start++)
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; /* do nothing */
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if (start >= len)
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return;
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goto skip;
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date = strtoul(msg + start, &ep, 10);
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if (msg + start == ep)
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return;
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goto skip;
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if (part == 't') { /* date, UNIX timestamp */
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strbuf_add(sb, msg + start, ep - (msg + start));
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return;
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return placeholder_len;
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}
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/* parse tz */
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@ -349,17 +349,28 @@ static void format_person_part(struct strbuf *sb, char part,
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switch (part) {
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case 'd': /* date */
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strbuf_addstr(sb, show_date(date, tz, DATE_NORMAL));
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return;
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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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return;
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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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return;
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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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return;
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return placeholder_len;
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}
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skip:
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/*
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* bogus commit, 'sb' cannot be updated, but we still need to
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* compute a valid return value.
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*/
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if (part == 'n' || part == 'e' || part == 't' || part == 'd'
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|| part == 'D' || part == 'r' || part == 'i')
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return placeholder_len;
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return 0; /* unknown placeholder */
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}
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struct chunk {
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@ -440,7 +451,7 @@ static void parse_commit_header(struct format_commit_context *context)
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context->commit_header_parsed = 1;
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}
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static void format_commit_item(struct strbuf *sb, const char *placeholder,
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static size_t format_commit_item(struct strbuf *sb, const char *placeholder,
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void *context)
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{
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struct format_commit_context *c = context;
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@ -451,23 +462,23 @@ static void format_commit_item(struct strbuf *sb, const char *placeholder,
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/* these are independent of the commit */
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switch (placeholder[0]) {
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case 'C':
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switch (placeholder[3]) {
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case 'd': /* red */
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if (!prefixcmp(placeholder + 1, "red")) {
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strbuf_addstr(sb, "\033[31m");
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return;
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case 'e': /* green */
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return 4;
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} else if (!prefixcmp(placeholder + 1, "green")) {
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strbuf_addstr(sb, "\033[32m");
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return;
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case 'u': /* blue */
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return 6;
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} else if (!prefixcmp(placeholder + 1, "blue")) {
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strbuf_addstr(sb, "\033[34m");
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return;
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case 's': /* reset color */
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return 5;
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} else if (!prefixcmp(placeholder + 1, "reset")) {
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strbuf_addstr(sb, "\033[m");
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return;
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}
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return 6;
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} else
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return 0;
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case 'n': /* newline */
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strbuf_addch(sb, '\n');
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return;
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return 1;
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}
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/* these depend on the commit */
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@ -477,34 +488,34 @@ static void format_commit_item(struct strbuf *sb, const char *placeholder,
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switch (placeholder[0]) {
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case 'H': /* commit hash */
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strbuf_addstr(sb, sha1_to_hex(commit->object.sha1));
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return;
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return 1;
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case 'h': /* abbreviated commit hash */
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if (add_again(sb, &c->abbrev_commit_hash))
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return;
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return 1;
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strbuf_addstr(sb, find_unique_abbrev(commit->object.sha1,
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DEFAULT_ABBREV));
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c->abbrev_commit_hash.len = sb->len - c->abbrev_commit_hash.off;
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return;
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return 1;
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case 'T': /* tree hash */
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strbuf_addstr(sb, sha1_to_hex(commit->tree->object.sha1));
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return;
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return 1;
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case 't': /* abbreviated tree hash */
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if (add_again(sb, &c->abbrev_tree_hash))
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return;
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return 1;
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strbuf_addstr(sb, find_unique_abbrev(commit->tree->object.sha1,
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DEFAULT_ABBREV));
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c->abbrev_tree_hash.len = sb->len - c->abbrev_tree_hash.off;
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return;
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return 1;
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case 'P': /* parent hashes */
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for (p = commit->parents; p; p = p->next) {
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if (p != commit->parents)
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strbuf_addch(sb, ' ');
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strbuf_addstr(sb, sha1_to_hex(p->item->object.sha1));
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}
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return;
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return 1;
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case 'p': /* abbreviated parent hashes */
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if (add_again(sb, &c->abbrev_parent_hashes))
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return;
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return 1;
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for (p = commit->parents; p; p = p->next) {
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if (p != commit->parents)
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strbuf_addch(sb, ' ');
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@ -513,14 +524,14 @@ static void format_commit_item(struct strbuf *sb, const char *placeholder,
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}
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c->abbrev_parent_hashes.len = sb->len -
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c->abbrev_parent_hashes.off;
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return;
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return 1;
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case 'm': /* left/right/bottom */
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strbuf_addch(sb, (commit->object.flags & BOUNDARY)
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? '-'
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: (commit->object.flags & SYMMETRIC_LEFT)
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? '<'
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: '>');
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return;
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return 1;
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}
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/* For the rest we have to parse the commit header. */
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@ -528,66 +539,33 @@ static void format_commit_item(struct strbuf *sb, const char *placeholder,
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parse_commit_header(c);
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switch (placeholder[0]) {
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case 's':
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case 's': /* subject */
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strbuf_add(sb, msg + c->subject.off, c->subject.len);
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return;
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case 'a':
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format_person_part(sb, placeholder[1],
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return 1;
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case 'a': /* author ... */
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return format_person_part(sb, placeholder[1],
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msg + c->author.off, c->author.len);
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return;
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case 'c':
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format_person_part(sb, placeholder[1],
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case 'c': /* committer ... */
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return format_person_part(sb, placeholder[1],
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msg + c->committer.off, c->committer.len);
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return;
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case 'e':
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case 'e': /* encoding */
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strbuf_add(sb, msg + c->encoding.off, c->encoding.len);
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return;
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case 'b':
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return 1;
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case 'b': /* body */
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strbuf_addstr(sb, msg + c->body_off);
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return;
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return 1;
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}
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return 0; /* unknown placeholder */
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}
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void format_commit_message(const struct commit *commit,
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const void *format, struct strbuf *sb)
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{
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const char *placeholders[] = {
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"H", /* commit hash */
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"h", /* abbreviated commit hash */
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"T", /* tree hash */
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"t", /* abbreviated tree hash */
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"P", /* parent hashes */
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"p", /* abbreviated parent hashes */
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"an", /* author name */
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"ae", /* author email */
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"ad", /* author date */
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"aD", /* author date, RFC2822 style */
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"ar", /* author date, relative */
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"at", /* author date, UNIX timestamp */
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"ai", /* author date, ISO 8601 */
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"cn", /* committer name */
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"ce", /* committer email */
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"cd", /* committer date */
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"cD", /* committer date, RFC2822 style */
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"cr", /* committer date, relative */
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"ct", /* committer date, UNIX timestamp */
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"ci", /* committer date, ISO 8601 */
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"e", /* encoding */
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"s", /* subject */
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"b", /* body */
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"Cred", /* red */
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"Cgreen", /* green */
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"Cblue", /* blue */
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"Creset", /* reset color */
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"n", /* newline */
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"m", /* left/right/bottom */
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NULL
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};
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struct format_commit_context context;
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memset(&context, 0, sizeof(context));
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context.commit = commit;
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strbuf_expand(sb, format, placeholders, format_commit_item, &context);
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strbuf_expand(sb, format, format_commit_item, &context);
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}
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static void pp_header(enum cmit_fmt fmt,
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19
strbuf.c
19
strbuf.c
@ -146,11 +146,12 @@ void strbuf_addf(struct strbuf *sb, const char *fmt, ...)
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strbuf_setlen(sb, sb->len + len);
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}
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void strbuf_expand(struct strbuf *sb, const char *format,
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const char **placeholders, expand_fn_t fn, void *context)
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void strbuf_expand(struct strbuf *sb, const char *format, expand_fn_t fn,
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void *context)
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{
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for (;;) {
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const char *percent, **p;
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const char *percent;
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size_t consumed;
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percent = strchrnul(format, '%');
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strbuf_add(sb, format, percent - format);
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@ -158,14 +159,10 @@ void strbuf_expand(struct strbuf *sb, const char *format,
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break;
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format = percent + 1;
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for (p = placeholders; *p; p++) {
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if (!prefixcmp(format, *p))
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break;
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}
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if (*p) {
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fn(sb, *p, context);
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format += strlen(*p);
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} else
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consumed = fn(sb, format, context);
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if (consumed)
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format += consumed;
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else
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strbuf_addch(sb, '%');
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}
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}
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4
strbuf.h
4
strbuf.h
@ -103,8 +103,8 @@ static inline void strbuf_addbuf(struct strbuf *sb, struct strbuf *sb2) {
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}
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extern void strbuf_adddup(struct strbuf *sb, size_t pos, size_t len);
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typedef void (*expand_fn_t) (struct strbuf *sb, const char *placeholder, void *context);
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extern void strbuf_expand(struct strbuf *sb, const char *format, const char **placeholders, expand_fn_t fn, void *context);
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typedef size_t (*expand_fn_t) (struct strbuf *sb, const char *placeholder, void *context);
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extern void strbuf_expand(struct strbuf *sb, const char *format, expand_fn_t fn, void *context);
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__attribute__((format(printf,2,3)))
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extern void strbuf_addf(struct strbuf *sb, const char *fmt, ...);
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