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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-01 15:34:23 (GMT)
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-01 15:34:23 (GMT)
commite3bc7a3bc7b77f44d686003f5a9346a135529f73 (patch)
tree79266b3dad77bb6980763e18e941f2833b63b748 /commit.c
parentef6a46e6eaae5e70df8b7ef9d7ead66c3313027e (diff)
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Add generic commit "pretty print" function.
It's really just the header printign function from diff-tree.c, and it's usable for other things too.
Diffstat (limited to 'commit.c')
-rw-r--r--commit.c80
1 files changed, 80 insertions, 0 deletions
diff --git a/commit.c b/commit.c
index a466f7d..de5e94d 100644
--- a/commit.c
+++ b/commit.c
@@ -174,3 +174,83 @@ struct commit *pop_most_recent_commit(struct commit_list **list,
}
return ret;
}
+
+/*
+ * Generic support for pretty-printing the header
+ */
+static int get_one_line(const char *msg, unsigned long len)
+{
+ int ret = 0;
+
+ while (len--) {
+ char c = *msg++;
+ ret++;
+ if (c == '\n')
+ break;
+ if (!c)
+ return 0;
+ }
+ return ret;
+}
+
+static int add_author_info(char *buf, const char *line, int len)
+{
+ char *date;
+ unsigned int namelen;
+ unsigned long time;
+ int tz;
+
+ line += strlen("author ");
+ date = strchr(line, '>');
+ if (!date)
+ return 0;
+ namelen = ++date - line;
+ time = strtoul(date, &date, 10);
+ tz = strtol(date, NULL, 10);
+
+ return sprintf(buf, "Author: %.*s\nDate: %s\n",
+ namelen, line,
+ show_date(time, tz));
+}
+
+unsigned long pretty_print_commit(const char *msg, unsigned long len, char *buf, unsigned long space)
+{
+ int hdr = 1;
+ unsigned long offset = 0;
+
+ for (;;) {
+ const char *line = msg;
+ int linelen = get_one_line(msg, len);
+
+ if (!linelen)
+ break;
+
+ /*
+ * We want some slop for indentation and a possible
+ * final "...". Thus the "+ 20".
+ */
+ if (offset + linelen + 20 > space) {
+ memcpy(buf + offset, " ...\n", 8);
+ offset += 8;
+ break;
+ }
+
+ msg += linelen;
+ len -= linelen;
+ if (linelen == 1)
+ hdr = 0;
+ if (hdr) {
+ if (!memcmp(line, "author ", 7))
+ offset += add_author_info(buf + offset, line, linelen);
+ continue;
+ }
+ memset(buf + offset, ' ', 4);
+ memcpy(buf + offset + 4, line, linelen);
+ offset += linelen + 4;
+ }
+ /* Make sure there is an EOLN */
+ if (buf[offset - 1] != '\n')
+ buf[offset++] = '\n';
+ buf[offset] = '\0';
+ return offset;
+}