#include "cache.h"
#include "commit.h"
-#include "interpolate.h"
#include "utf8.h"
#include "diff.h"
#include "revision.h"
return out;
}
-static void fill_person(struct interp *table, const char *msg, int len)
+static void format_person_part(struct strbuf *sb, char part,
+ const char *msg, int len)
{
int start, end, tz = 0;
unsigned long date;
/* parse name */
for (end = 0; end < len && msg[end] != '<'; end++)
; /* do nothing */
+ /*
+ * If it does not even have a '<' and '>', that is
+ * quite a bogus commit author and we discard it;
+ * this is in line with add_user_info() that is used
+ * in the normal codepath. When end points at the '<'
+ * that we found, it should have matching '>' later,
+ * which means start (beginning of email address) must
+ * be strictly below len.
+ */
start = end + 1;
+ if (start >= len - 1)
+ return;
while (end > 0 && isspace(msg[end - 1]))
end--;
- table[0].value = xmemdupz(msg, end);
-
- if (start >= len)
+ if (part == 'n') { /* name */
+ strbuf_add(sb, msg, end);
return;
+ }
/* parse email */
- for (end = start + 1; end < len && msg[end] != '>'; end++)
+ for (end = start; end < len && msg[end] != '>'; end++)
; /* do nothing */
if (end >= len)
return;
- table[1].value = xmemdupz(msg + start, end - start);
+ if (part == 'e') { /* email */
+ strbuf_add(sb, msg + start, end - start);
+ return;
+ }
/* parse date */
for (start = end + 1; start < len && isspace(msg[start]); start++)
if (msg + start == ep)
return;
- table[5].value = xmemdupz(msg + start, ep - (msg + start));
+ if (part == 't') { /* date, UNIX timestamp */
+ strbuf_add(sb, msg + start, ep - (msg + start));
+ return;
+ }
/* parse tz */
for (start = ep - msg + 1; start < len && isspace(msg[start]); start++)
tz = -tz;
}
- interp_set_entry(table, 2, show_date(date, tz, DATE_NORMAL));
- interp_set_entry(table, 3, show_date(date, tz, DATE_RFC2822));
- interp_set_entry(table, 4, show_date(date, tz, DATE_RELATIVE));
- interp_set_entry(table, 6, show_date(date, tz, DATE_ISO8601));
+ switch (part) {
+ case 'd': /* date */
+ strbuf_addstr(sb, show_date(date, tz, DATE_NORMAL));
+ return;
+ case 'D': /* date, RFC2822 style */
+ strbuf_addstr(sb, show_date(date, tz, DATE_RFC2822));
+ return;
+ case 'r': /* date, relative */
+ strbuf_addstr(sb, show_date(date, tz, DATE_RELATIVE));
+ return;
+ case 'i': /* date, ISO 8601 */
+ strbuf_addstr(sb, show_date(date, tz, DATE_ISO8601));
+ return;
+ }
}
-void format_commit_message(const struct commit *commit,
- const void *format, struct strbuf *sb)
-{
- struct interp table[] = {
- { "%H" }, /* commit hash */
- { "%h" }, /* abbreviated commit hash */
- { "%T" }, /* tree hash */
- { "%t" }, /* abbreviated tree hash */
- { "%P" }, /* parent hashes */
- { "%p" }, /* abbreviated parent hashes */
- { "%an" }, /* author name */
- { "%ae" }, /* author email */
- { "%ad" }, /* author date */
- { "%aD" }, /* author date, RFC2822 style */
- { "%ar" }, /* author date, relative */
- { "%at" }, /* author date, UNIX timestamp */
- { "%ai" }, /* author date, ISO 8601 */
- { "%cn" }, /* committer name */
- { "%ce" }, /* committer email */
- { "%cd" }, /* committer date */
- { "%cD" }, /* committer date, RFC2822 style */
- { "%cr" }, /* committer date, relative */
- { "%ct" }, /* committer date, UNIX timestamp */
- { "%ci" }, /* committer date, ISO 8601 */
- { "%e" }, /* encoding */
- { "%s" }, /* subject */
- { "%b" }, /* body */
- { "%Cred" }, /* red */
- { "%Cgreen" }, /* green */
- { "%Cblue" }, /* blue */
- { "%Creset" }, /* reset color */
- { "%n" }, /* newline */
- { "%m" }, /* left/right/bottom */
- };
- enum interp_index {
- IHASH = 0, IHASH_ABBREV,
- ITREE, ITREE_ABBREV,
- IPARENTS, IPARENTS_ABBREV,
- IAUTHOR_NAME, IAUTHOR_EMAIL,
- IAUTHOR_DATE, IAUTHOR_DATE_RFC2822, IAUTHOR_DATE_RELATIVE,
- IAUTHOR_TIMESTAMP, IAUTHOR_ISO8601,
- ICOMMITTER_NAME, ICOMMITTER_EMAIL,
- ICOMMITTER_DATE, ICOMMITTER_DATE_RFC2822,
- ICOMMITTER_DATE_RELATIVE, ICOMMITTER_TIMESTAMP,
- ICOMMITTER_ISO8601,
- IENCODING,
- ISUBJECT,
- IBODY,
- IRED, IGREEN, IBLUE, IRESET_COLOR,
- INEWLINE,
- ILEFT_RIGHT,
- };
- struct commit_list *p;
- char parents[1024];
- unsigned long len;
- int i;
- enum { HEADER, SUBJECT, BODY } state;
- const char *msg = commit->buffer;
+struct chunk {
+ size_t off;
+ size_t len;
+};
- if (ILEFT_RIGHT + 1 != ARRAY_SIZE(table))
- die("invalid interp table!");
+struct format_commit_context {
+ const struct commit *commit;
+
+ /* These offsets are relative to the start of the commit message. */
+ int commit_header_parsed;
+ struct chunk subject;
+ struct chunk author;
+ struct chunk committer;
+ struct chunk encoding;
+ size_t body_off;
+
+ /* The following ones are relative to the result struct strbuf. */
+ struct chunk abbrev_commit_hash;
+ struct chunk abbrev_tree_hash;
+ struct chunk abbrev_parent_hashes;
+};
- /* these are independent of the commit */
- interp_set_entry(table, IRED, "\033[31m");
- interp_set_entry(table, IGREEN, "\033[32m");
- interp_set_entry(table, IBLUE, "\033[34m");
- interp_set_entry(table, IRESET_COLOR, "\033[m");
- interp_set_entry(table, INEWLINE, "\n");
+static int add_again(struct strbuf *sb, struct chunk *chunk)
+{
+ if (chunk->len) {
+ strbuf_adddup(sb, chunk->off, chunk->len);
+ return 1;
+ }
- /* these depend on the commit */
- if (!commit->object.parsed)
- parse_object(commit->object.sha1);
- interp_set_entry(table, IHASH, sha1_to_hex(commit->object.sha1));
- interp_set_entry(table, IHASH_ABBREV,
- find_unique_abbrev(commit->object.sha1,
- DEFAULT_ABBREV));
- interp_set_entry(table, ITREE, sha1_to_hex(commit->tree->object.sha1));
- interp_set_entry(table, ITREE_ABBREV,
- find_unique_abbrev(commit->tree->object.sha1,
- DEFAULT_ABBREV));
- interp_set_entry(table, ILEFT_RIGHT,
- (commit->object.flags & BOUNDARY)
- ? "-"
- : (commit->object.flags & SYMMETRIC_LEFT)
- ? "<"
- : ">");
-
- parents[1] = 0;
- for (i = 0, p = commit->parents;
- p && i < sizeof(parents) - 1;
- p = p->next)
- i += snprintf(parents + i, sizeof(parents) - i - 1, " %s",
- sha1_to_hex(p->item->object.sha1));
- interp_set_entry(table, IPARENTS, parents + 1);
-
- parents[1] = 0;
- for (i = 0, p = commit->parents;
- p && i < sizeof(parents) - 1;
- p = p->next)
- i += snprintf(parents + i, sizeof(parents) - i - 1, " %s",
- find_unique_abbrev(p->item->object.sha1,
- DEFAULT_ABBREV));
- interp_set_entry(table, IPARENTS_ABBREV, parents + 1);
+ /*
+ * We haven't seen this chunk before. Our caller is surely
+ * going to add it the hard way now. Remember the most likely
+ * start of the to-be-added chunk: the current end of the
+ * struct strbuf.
+ */
+ chunk->off = sb->len;
+ return 0;
+}
+
+static void parse_commit_header(struct format_commit_context *context)
+{
+ const char *msg = context->commit->buffer;
+ int i;
+ enum { HEADER, SUBJECT, BODY } state;
for (i = 0, state = HEADER; msg[i] && state < BODY; i++) {
int eol;
; /* do nothing */
if (state == SUBJECT) {
- table[ISUBJECT].value = xmemdupz(msg + i, eol - i);
+ context->subject.off = i;
+ context->subject.len = eol - i;
i = eol;
}
if (i == eol) {
state++;
/* strip empty lines */
- while (msg[eol + 1] == '\n')
+ while (msg[eol] == '\n' && msg[eol + 1] == '\n')
eol++;
- } else if (!prefixcmp(msg + i, "author "))
- fill_person(table + IAUTHOR_NAME,
- msg + i + 7, eol - i - 7);
- else if (!prefixcmp(msg + i, "committer "))
- fill_person(table + ICOMMITTER_NAME,
- msg + i + 10, eol - i - 10);
- else if (!prefixcmp(msg + i, "encoding "))
- table[IENCODING].value =
- xmemdupz(msg + i + 9, eol - i - 9);
+ } else if (!prefixcmp(msg + i, "author ")) {
+ context->author.off = i + 7;
+ context->author.len = eol - i - 7;
+ } else if (!prefixcmp(msg + i, "committer ")) {
+ context->committer.off = i + 10;
+ context->committer.len = eol - i - 10;
+ } else if (!prefixcmp(msg + i, "encoding ")) {
+ context->encoding.off = i + 9;
+ context->encoding.len = eol - i - 9;
+ }
i = eol;
+ if (!msg[i])
+ break;
}
- if (msg[i])
- table[IBODY].value = xstrdup(msg + i);
+ context->body_off = i;
+ context->commit_header_parsed = 1;
+}
- len = interpolate(sb->buf + sb->len, strbuf_avail(sb),
- format, table, ARRAY_SIZE(table));
- if (len > strbuf_avail(sb)) {
- strbuf_grow(sb, len);
- interpolate(sb->buf + sb->len, strbuf_avail(sb) + 1,
- format, table, ARRAY_SIZE(table));
+static void format_commit_item(struct strbuf *sb, const char *placeholder,
+ void *context)
+{
+ struct format_commit_context *c = context;
+ const struct commit *commit = c->commit;
+ const char *msg = commit->buffer;
+ struct commit_list *p;
+
+ /* these are independent of the commit */
+ switch (placeholder[0]) {
+ case 'C':
+ switch (placeholder[3]) {
+ case 'd': /* red */
+ strbuf_addstr(sb, "\033[31m");
+ return;
+ case 'e': /* green */
+ strbuf_addstr(sb, "\033[32m");
+ return;
+ case 'u': /* blue */
+ strbuf_addstr(sb, "\033[34m");
+ return;
+ case 's': /* reset color */
+ strbuf_addstr(sb, "\033[m");
+ return;
+ }
+ case 'n': /* newline */
+ strbuf_addch(sb, '\n');
+ return;
}
- strbuf_setlen(sb, sb->len + len);
- interp_clear_table(table, ARRAY_SIZE(table));
+
+ /* these depend on the commit */
+ if (!commit->object.parsed)
+ parse_object(commit->object.sha1);
+
+ switch (placeholder[0]) {
+ case 'H': /* commit hash */
+ strbuf_addstr(sb, sha1_to_hex(commit->object.sha1));
+ return;
+ case 'h': /* abbreviated commit hash */
+ if (add_again(sb, &c->abbrev_commit_hash))
+ return;
+ strbuf_addstr(sb, find_unique_abbrev(commit->object.sha1,
+ DEFAULT_ABBREV));
+ c->abbrev_commit_hash.len = sb->len - c->abbrev_commit_hash.off;
+ return;
+ case 'T': /* tree hash */
+ strbuf_addstr(sb, sha1_to_hex(commit->tree->object.sha1));
+ return;
+ case 't': /* abbreviated tree hash */
+ if (add_again(sb, &c->abbrev_tree_hash))
+ return;
+ strbuf_addstr(sb, find_unique_abbrev(commit->tree->object.sha1,
+ DEFAULT_ABBREV));
+ c->abbrev_tree_hash.len = sb->len - c->abbrev_tree_hash.off;
+ return;
+ case 'P': /* parent hashes */
+ for (p = commit->parents; p; p = p->next) {
+ if (p != commit->parents)
+ strbuf_addch(sb, ' ');
+ strbuf_addstr(sb, sha1_to_hex(p->item->object.sha1));
+ }
+ return;
+ case 'p': /* abbreviated parent hashes */
+ if (add_again(sb, &c->abbrev_parent_hashes))
+ return;
+ for (p = commit->parents; p; p = p->next) {
+ if (p != commit->parents)
+ strbuf_addch(sb, ' ');
+ strbuf_addstr(sb, find_unique_abbrev(
+ p->item->object.sha1, DEFAULT_ABBREV));
+ }
+ c->abbrev_parent_hashes.len = sb->len -
+ c->abbrev_parent_hashes.off;
+ return;
+ case 'm': /* left/right/bottom */
+ strbuf_addch(sb, (commit->object.flags & BOUNDARY)
+ ? '-'
+ : (commit->object.flags & SYMMETRIC_LEFT)
+ ? '<'
+ : '>');
+ return;
+ }
+
+ /* For the rest we have to parse the commit header. */
+ if (!c->commit_header_parsed)
+ parse_commit_header(c);
+
+ switch (placeholder[0]) {
+ case 's':
+ strbuf_add(sb, msg + c->subject.off, c->subject.len);
+ return;
+ case 'a':
+ format_person_part(sb, placeholder[1],
+ msg + c->author.off, c->author.len);
+ return;
+ case 'c':
+ format_person_part(sb, placeholder[1],
+ msg + c->committer.off, c->committer.len);
+ return;
+ case 'e':
+ strbuf_add(sb, msg + c->encoding.off, c->encoding.len);
+ return;
+ case 'b':
+ strbuf_addstr(sb, msg + c->body_off);
+ return;
+ }
+}
+
+void format_commit_message(const struct commit *commit,
+ const void *format, struct strbuf *sb)
+{
+ const char *placeholders[] = {
+ "H", /* commit hash */
+ "h", /* abbreviated commit hash */
+ "T", /* tree hash */
+ "t", /* abbreviated tree hash */
+ "P", /* parent hashes */
+ "p", /* abbreviated parent hashes */
+ "an", /* author name */
+ "ae", /* author email */
+ "ad", /* author date */
+ "aD", /* author date, RFC2822 style */
+ "ar", /* author date, relative */
+ "at", /* author date, UNIX timestamp */
+ "ai", /* author date, ISO 8601 */
+ "cn", /* committer name */
+ "ce", /* committer email */
+ "cd", /* committer date */
+ "cD", /* committer date, RFC2822 style */
+ "cr", /* committer date, relative */
+ "ct", /* committer date, UNIX timestamp */
+ "ci", /* committer date, ISO 8601 */
+ "e", /* encoding */
+ "s", /* subject */
+ "b", /* body */
+ "Cred", /* red */
+ "Cgreen", /* green */
+ "Cblue", /* blue */
+ "Creset", /* reset color */
+ "n", /* newline */
+ "m", /* left/right/bottom */
+ NULL
+ };
+ struct format_commit_context context;
+
+ memset(&context, 0, sizeof(context));
+ context.commit = commit;
+ strbuf_expand(sb, format, placeholders, format_commit_item, &context);
}
static void pp_header(enum cmit_fmt fmt,