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Move "parse_commit()" into common revision.h file. 

This also drops the old-style date parsing. We just don't care
enough, since we dropped that format pretty early.

Yes, this could do with some cleanup, and a common library file.
Some day.
maint
Linus Torvalds 2005-04-17 11:39:18 -07:00
parent 7223a88ce7
commit 89d21f4b64
2 changed files with 40 additions and 79 deletions
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79
rev-tree.c
View File

@ -16,85 +16,6 @@
static int show_edges = 0;
static int basemask = 0;

static unsigned long parse_time(const char *buf)
{
char c, *p;
char buffer[100];
struct tm tm;
const char *formats[] = {
"%s",
"%c",
"%a %b %d %T %y",
NULL
};
const char **fmt = formats;

p = buffer;
while (isspace(c = *buf))
buf++;
while ((c = *buf++) != '\n' && c)
*p++ = c;
*p++ = 0;
buf = buffer;
memset(&tm, 0, sizeof(tm));
do {
const char *next = strptime(buf, *fmt, &tm);
fmt++;
if (next) {
if (!*next)
return mktime(&tm);
buf = next;
}
} while (*buf && *fmt);
return mktime(&tm);
}

static unsigned long parse_commit_date(const char *buf)
{
unsigned long time;

if (memcmp(buf, "author", 6))
return 0;
while (*buf++ != '\n')
/* nada */;
if (memcmp(buf, "committer", 9))
return 0;
while (*buf++ != '>')
/* nada */;

time = strtoul(buf, NULL, 10);
if (!time)
time = parse_time(buf);
return time;
}

static int parse_commit(unsigned char *sha1)
{
struct revision *rev = lookup_rev(sha1);

if (!(rev->flags & SEEN)) {
void *buffer, *bufptr;
unsigned long size;
char type[20];
unsigned char parent[20];

rev->flags |= SEEN;
buffer = bufptr = read_sha1_file(sha1, type, &size);
if (!buffer || strcmp(type, "commit"))
return -1;
bufptr += 46; /* "tree " + "hex sha1" + "\n" */
while (!memcmp(bufptr, "parent ", 7) && !get_sha1_hex(bufptr+7, parent)) {
add_relationship(rev, parent);
parse_commit(parent);
bufptr += 48; /* "parent " + "hex sha1" + "\n" */
}
rev->date = parse_commit_date(bufptr);
free(buffer);
}
return 0;
}

static void read_cache_file(const char *path)
{
FILE *file = fopen(path, "r");

40
revision.h
View File

@ -111,4 +111,44 @@ static void mark_reachable(struct revision *rev)
}
}

static unsigned long parse_commit_date(const char *buf)
{
if (memcmp(buf, "author", 6))
return 0;
while (*buf++ != '\n')
/* nada */;
if (memcmp(buf, "committer", 9))
return 0;
while (*buf++ != '>')
/* nada */;

return strtoul(buf, NULL, 10);
}

static int parse_commit(unsigned char *sha1)
{
struct revision *rev = lookup_rev(sha1);

if (!(rev->flags & SEEN)) {
void *buffer, *bufptr;
unsigned long size;
char type[20];
unsigned char parent[20];

rev->flags |= SEEN;
buffer = bufptr = read_sha1_file(sha1, type, &size);
if (!buffer || strcmp(type, "commit"))
return -1;
bufptr += 46; /* "tree " + "hex sha1" + "\n" */
while (!memcmp(bufptr, "parent ", 7) && !get_sha1_hex(bufptr+7, parent)) {
add_relationship(rev, parent);
parse_commit(parent);
bufptr += 48; /* "parent " + "hex sha1" + "\n" */
}
rev->date = parse_commit_date(bufptr);
free(buffer);
}
return 0;
}

#endif /* REVISION_H */