Revision 7d09fbe4ab7f080a8f8f5dcef7e0f3edf5e26019 authored by Serge E. Hallyn on 18 April 2006, 13:11:06 UTC, committed by Junio C Hamano on 25 April 2006, 06:07:54 UTC
The set_reuse_addr() error case was the only error case in socklist() where we returned rather than continued. Not sure why. Either we must free the socklist, or continue. This patch continues on error. Signed-off-by: Serge E. Hallyn <serue@us.ibm.com> Signed-off-by: Junio C Hamano <junkio@cox.net> (cherry picked from 0032d548db56eac9ea09b4ba05843365f6325b85 commit)
1 parent 1ab661d
convert-objects.c
#define _XOPEN_SOURCE 500 /* glibc2 and AIX 5.3L need this */
#define _XOPEN_SOURCE_EXTENDED 1 /* AIX 5.3L needs this */
#include <time.h>
#include "cache.h"
#include "blob.h"
#include "commit.h"
#include "tree.h"
struct entry {
unsigned char old_sha1[20];
unsigned char new_sha1[20];
int converted;
};
#define MAXOBJECTS (1000000)
static struct entry *convert[MAXOBJECTS];
static int nr_convert;
static struct entry * convert_entry(unsigned char *sha1);
static struct entry *insert_new(unsigned char *sha1, int pos)
{
struct entry *new = xcalloc(1, sizeof(struct entry));
memcpy(new->old_sha1, sha1, 20);
memmove(convert + pos + 1, convert + pos, (nr_convert - pos) * sizeof(struct entry *));
convert[pos] = new;
nr_convert++;
if (nr_convert == MAXOBJECTS)
die("you're kidding me - hit maximum object limit");
return new;
}
static struct entry *lookup_entry(unsigned char *sha1)
{
int low = 0, high = nr_convert;
while (low < high) {
int next = (low + high) / 2;
struct entry *n = convert[next];
int cmp = memcmp(sha1, n->old_sha1, 20);
if (!cmp)
return n;
if (cmp < 0) {
high = next;
continue;
}
low = next+1;
}
return insert_new(sha1, low);
}
static void convert_binary_sha1(void *buffer)
{
struct entry *entry = convert_entry(buffer);
memcpy(buffer, entry->new_sha1, 20);
}
static void convert_ascii_sha1(void *buffer)
{
unsigned char sha1[20];
struct entry *entry;
if (get_sha1_hex(buffer, sha1))
die("expected sha1, got '%s'", (char*) buffer);
entry = convert_entry(sha1);
memcpy(buffer, sha1_to_hex(entry->new_sha1), 40);
}
static unsigned int convert_mode(unsigned int mode)
{
unsigned int newmode;
newmode = mode & S_IFMT;
if (S_ISREG(mode))
newmode |= (mode & 0100) ? 0755 : 0644;
return newmode;
}
static int write_subdirectory(void *buffer, unsigned long size, const char *base, int baselen, unsigned char *result_sha1)
{
char *new = xmalloc(size);
unsigned long newlen = 0;
unsigned long used;
used = 0;
while (size) {
int len = 21 + strlen(buffer);
char *path = strchr(buffer, ' ');
unsigned char *sha1;
unsigned int mode;
char *slash, *origpath;
if (!path || sscanf(buffer, "%o", &mode) != 1)
die("bad tree conversion");
mode = convert_mode(mode);
path++;
if (memcmp(path, base, baselen))
break;
origpath = path;
path += baselen;
slash = strchr(path, '/');
if (!slash) {
newlen += sprintf(new + newlen, "%o %s", mode, path);
new[newlen++] = '\0';
memcpy(new + newlen, buffer + len - 20, 20);
newlen += 20;
used += len;
size -= len;
buffer += len;
continue;
}
newlen += sprintf(new + newlen, "%o %.*s", S_IFDIR, (int)(slash - path), path);
new[newlen++] = 0;
sha1 = (unsigned char *)(new + newlen);
newlen += 20;
len = write_subdirectory(buffer, size, origpath, slash-origpath+1, sha1);
used += len;
size -= len;
buffer += len;
}
write_sha1_file(new, newlen, tree_type, result_sha1);
free(new);
return used;
}
static void convert_tree(void *buffer, unsigned long size, unsigned char *result_sha1)
{
void *orig_buffer = buffer;
unsigned long orig_size = size;
while (size) {
int len = 1+strlen(buffer);
convert_binary_sha1(buffer + len);
len += 20;
if (len > size)
die("corrupt tree object");
size -= len;
buffer += len;
}
write_subdirectory(orig_buffer, orig_size, "", 0, result_sha1);
}
static unsigned long parse_oldstyle_date(const char *buf)
{
char c, *p;
char buffer[100];
struct tm tm;
const char *formats[] = {
"%c",
"%a %b %d %T",
"%Z",
"%Y",
" %Y",
NULL
};
/* We only ever did two timezones in the bad old format .. */
const char *timezones[] = {
"PDT", "PST", "CEST", NULL
};
const char **fmt = formats;
p = buffer;
while (isspace(c = *buf))
buf++;
while ((c = *buf++) != '\n')
*p++ = c;
*p++ = 0;
buf = buffer;
memset(&tm, 0, sizeof(tm));
do {
const char *next = strptime(buf, *fmt, &tm);
if (next) {
if (!*next)
return mktime(&tm);
buf = next;
} else {
const char **p = timezones;
while (isspace(*buf))
buf++;
while (*p) {
if (!memcmp(buf, *p, strlen(*p))) {
buf += strlen(*p);
break;
}
p++;
}
}
fmt++;
} while (*buf && *fmt);
printf("left: %s\n", buf);
return mktime(&tm);
}
static int convert_date_line(char *dst, void **buf, unsigned long *sp)
{
unsigned long size = *sp;
char *line = *buf;
char *next = strchr(line, '\n');
char *date = strchr(line, '>');
int len;
if (!next || !date)
die("missing or bad author/committer line %s", line);
next++; date += 2;
*buf = next;
*sp = size - (next - line);
len = date - line;
memcpy(dst, line, len);
dst += len;
/* Is it already in new format? */
if (isdigit(*date)) {
int datelen = next - date;
memcpy(dst, date, datelen);
return len + datelen;
}
/*
* Hacky hacky: one of the sparse old-style commits does not have
* any date at all, but we can fake it by using the committer date.
*/
if (*date == '\n' && strchr(next, '>'))
date = strchr(next, '>')+2;
return len + sprintf(dst, "%lu -0700\n", parse_oldstyle_date(date));
}
static void convert_date(void *buffer, unsigned long size, unsigned char *result_sha1)
{
char *new = xmalloc(size + 100);
unsigned long newlen = 0;
// "tree <sha1>\n"
memcpy(new + newlen, buffer, 46);
newlen += 46;
buffer += 46;
size -= 46;
// "parent <sha1>\n"
while (!memcmp(buffer, "parent ", 7)) {
memcpy(new + newlen, buffer, 48);
newlen += 48;
buffer += 48;
size -= 48;
}
// "author xyz <xyz> date"
newlen += convert_date_line(new + newlen, &buffer, &size);
// "committer xyz <xyz> date"
newlen += convert_date_line(new + newlen, &buffer, &size);
// Rest
memcpy(new + newlen, buffer, size);
newlen += size;
write_sha1_file(new, newlen, commit_type, result_sha1);
free(new);
}
static void convert_commit(void *buffer, unsigned long size, unsigned char *result_sha1)
{
void *orig_buffer = buffer;
unsigned long orig_size = size;
if (memcmp(buffer, "tree ", 5))
die("Bad commit '%s'", (char*) buffer);
convert_ascii_sha1(buffer+5);
buffer += 46; /* "tree " + "hex sha1" + "\n" */
while (!memcmp(buffer, "parent ", 7)) {
convert_ascii_sha1(buffer+7);
buffer += 48;
}
convert_date(orig_buffer, orig_size, result_sha1);
}
static struct entry * convert_entry(unsigned char *sha1)
{
struct entry *entry = lookup_entry(sha1);
char type[20];
void *buffer, *data;
unsigned long size;
if (entry->converted)
return entry;
data = read_sha1_file(sha1, type, &size);
if (!data)
die("unable to read object %s", sha1_to_hex(sha1));
buffer = xmalloc(size);
memcpy(buffer, data, size);
if (!strcmp(type, blob_type)) {
write_sha1_file(buffer, size, blob_type, entry->new_sha1);
} else if (!strcmp(type, tree_type))
convert_tree(buffer, size, entry->new_sha1);
else if (!strcmp(type, commit_type))
convert_commit(buffer, size, entry->new_sha1);
else
die("unknown object type '%s' in %s", type, sha1_to_hex(sha1));
entry->converted = 1;
free(buffer);
free(data);
return entry;
}
int main(int argc, char **argv)
{
unsigned char sha1[20];
struct entry *entry;
setup_git_directory();
if (argc != 2 || get_sha1(argv[1], sha1))
usage("git-convert-objects <sha1>");
entry = convert_entry(sha1);
printf("new sha1: %s\n", sha1_to_hex(entry->new_sha1));
return 0;
}
![swh spinner](/static/img/swh-spinner.gif)
Computing file changes ...