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authorJunio C Hamano <junkio@cox.net>2005-05-01 21:09:28 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-05-01 21:09:28 -0700
commitdfcb405799fa620028e492299a60438a7b4a35ff (patch)
treed665c428614ae46e307f988622aa09dc98cafdfe /local-pull.c
parentee4f439fea8974c4d9de798460eb95a2ac001156 (diff)
downloadgit-dfcb405799fa620028e492299a60438a7b4a35ff.tar.gz
git-dfcb405799fa620028e492299a60438a7b4a35ff.tar.xz
[PATCH] Add git-local-pull.
This adds the git-local-pull command as a smaller brother of http-pull and rpull. Signed-off-by: Junio C Hamano <junkio@cox.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'local-pull.c')
-rw-r--r--local-pull.c110
1 files changed, 110 insertions, 0 deletions
diff --git a/local-pull.c b/local-pull.c
new file mode 100644
index 000000000..0a9a366e0
--- /dev/null
+++ b/local-pull.c
@@ -0,0 +1,110 @@
+#include <fcntl.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+#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 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 */
+ strcat(filename, "/objects/");
+ object_name_start = strlen(filename);
+ }
+ filename[object_name_start+0] = hex[0];
+ 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_symlink && !symlink(filename, dest_filename)) {
+ say("Symlinked %s.\n", hex);
+ return 0;
+ }
+ 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);
+ 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 (%ld bytes)\n",
+ dest_filename, st.st_size);
+ else
+ say("Copied %s.\n", hex);
+ return status;
+}
+
+static const char *local_pull_usage =
+"git-local-pull [-c] [-t] [-a] [-l] [-s] [-v] commit-id path";
+
+int main(int argc, char **argv)
+{
+ char *commit_id;
+ int arg = 1;
+
+ while (arg < argc && argv[arg][0] == '-') {
+ if (argv[arg][1] == 't')
+ get_tree = 1;
+ else if (argv[arg][1] == 'c')
+ get_history = 1;
+ else if (argv[arg][1] == 'a') {
+ get_all = 1;
+ get_tree = 1;
+ get_history = 1;
+ }
+ else if (argv[arg][1] == 'l')
+ use_link = 1;
+ else if (argv[arg][1] == 's')
+ use_symlink = 1;
+ else if (argv[arg][1] == 'v')
+ verbose = 1;
+ else
+ usage(local_pull_usage);
+ arg++;
+ }
+ if (argc < arg + 2)
+ usage(local_pull_usage);
+ commit_id = argv[arg];
+ path = argv[arg + 1];
+
+ if (pull(commit_id))
+ return 1;
+
+ return 0;
+}