-#include <fcntl.h>
-#include <unistd.h>
-#include <string.h>
-#include <stdlib.h>
+/*
+ * Copyright (C) 2005 Junio C Hamano
+ */
#include "cache.h"
#include "commit.h"
-#include <errno.h>
-#include <stdio.h>
#include "pull.h"
static int use_link = 0;
static int use_symlink = 0;
-static int verbose = 0;
+static int use_filecopy = 1;
static char *path;
-static void say(const char *fmt, const char *hex) {
- if (verbose)
- fprintf(stderr, fmt, hex);
-}
-
int fetch(unsigned char *sha1)
{
static int object_name_start = -1;
static char filename[PATH_MAX];
char *hex = sha1_to_hex(sha1);
const char *dest_filename = sha1_file_name(sha1);
- int ifd, ofd, status;
- struct stat st;
- void *map;
if (object_name_start < 0) {
strcpy(filename, path); /* e.g. git.git */
filename[object_name_start+1] = hex[1];
filename[object_name_start+2] = '/';
strcpy(filename + object_name_start + 3, hex + 2);
- if (use_link && !link(filename, dest_filename)) {
- say("Hardlinked %s.\n", hex);
- return 0;
+ if (use_link) {
+ if (!link(filename, dest_filename)) {
+ pull_say("link %s\n", hex);
+ return 0;
+ }
+ /* If we got ENOENT there is no point continuing. */
+ if (errno == ENOENT) {
+ fprintf(stderr, "does not exist %s\n", filename);
+ return -1;
+ }
}
if (use_symlink && !symlink(filename, dest_filename)) {
- say("Symlinked %s.\n", hex);
+ pull_say("symlink %s\n", hex);
return 0;
}
- ifd = open(filename, O_RDONLY);
- if (ifd < 0 || fstat(ifd, &st) < 0) {
+ if (use_filecopy) {
+ int ifd, ofd, status;
+ struct stat st;
+ void *map;
+ ifd = open(filename, O_RDONLY);
+ if (ifd < 0 || fstat(ifd, &st) < 0) {
+ close(ifd);
+ fprintf(stderr, "cannot open %s\n", filename);
+ return -1;
+ }
+ map = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, ifd, 0);
close(ifd);
- fprintf(stderr, "Cannot open %s\n", filename);
- return -1;
- }
- map = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, ifd, 0);
- close(ifd);
- if (-1 == (int)(long)map) {
- fprintf(stderr, "Cannot mmap %s\n", filename);
- return -1;
+ if (-1 == (int)(long)map) {
+ fprintf(stderr, "cannot mmap %s\n", filename);
+ return -1;
+ }
+ ofd = open(dest_filename, O_WRONLY | O_CREAT | O_EXCL, 0666);
+ status = ((ofd < 0) ||
+ (write(ofd, map, st.st_size) != st.st_size));
+ munmap(map, st.st_size);
+ close(ofd);
+ if (status)
+ fprintf(stderr, "cannot write %s\n", dest_filename);
+ else
+ pull_say("copy %s\n", hex);
+ return status;
}
- ofd = open(dest_filename, O_WRONLY | O_CREAT | O_EXCL, 0666);
- status = ((ofd < 0) || (write(ofd, map, st.st_size) != st.st_size));
- munmap(map, st.st_size);
- close(ofd);
- if (status)
- fprintf(stderr, "Cannot write %s (%ld bytes)\n",
- dest_filename, st.st_size);
- else
- say("Copied %s.\n", hex);
- return status;
+ fprintf(stderr, "failed to copy %s with given copy methods.\n", hex);
+ return -1;
}
static const char *local_pull_usage =
-"git-local-pull [-c] [-t] [-a] [-l] [-s] [-v] commit-id path";
+"git-local-pull [-c] [-t] [-a] [-l] [-s] [-n] [-v] commit-id path";
+/*
+ * By default we only use file copy.
+ * If -l is specified, a hard link is attempted.
+ * If -s is specified, then a symlink is attempted.
+ * If -n is _not_ specified, then a regular file-to-file copy is done.
+ */
int main(int argc, char **argv)
{
char *commit_id;
use_link = 1;
else if (argv[arg][1] == 's')
use_symlink = 1;
+ else if (argv[arg][1] == 'n')
+ use_filecopy = 0;
else if (argv[arg][1] == 'v')
- verbose = 1;
+ get_verbosely = 1;
else
usage(local_pull_usage);
arg++;