X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=local-fetch.c;h=4bf86fbbe2703514cd3ab39fd9c81accac662aaf;hb=4c5cf8c44ce06a79da5bafd4a92e6d6f598cea2e;hp=a3e35f9c81730ec149bf37cb19d7dbb4570a3197;hpb=1a951815ddaa4e4b570cc67e204f45e9a12841e0;p=git.git

diff --git a/local-fetch.c b/local-fetch.c
index a3e35f9c8..4bf86fbbe 100644
--- a/local-fetch.c
+++ b/local-fetch.c
@@ -8,8 +8,9 @@
 static int use_link = 0;
 static int use_symlink = 0;
 static int use_filecopy = 1;
+static int commits_on_stdin = 0;
 
-static char *path; /* "Remote" git repository */
+static const char *path; /* "Remote" git repository */
 
 void prefetch(unsigned char *sha1)
 {
@@ -52,8 +53,10 @@ static int setup_indices(void)
 	return 0;
 }
 
-static int copy_file(const char *source, const char *dest, const char *hex)
+static int copy_file(const char *source, char *dest, const char *hex,
+		     int warn_if_not_exists)
 {
+	safe_create_leading_directories(dest);
 	if (use_link) {
 		if (!link(source, dest)) {
 			pull_say("link %s\n", hex);
@@ -61,37 +64,43 @@ static int copy_file(const char *source, const char *dest, const char *hex)
 		}
 		/* If we got ENOENT there is no point continuing. */
 		if (errno == ENOENT) {
-			fprintf(stderr, "does not exist %s\n", source);
+			if (warn_if_not_exists)
+				fprintf(stderr, "does not exist %s\n", source);
 			return -1;
 		}
 	}
-	if (use_symlink && !symlink(source, dest)) {
-		pull_say("symlink %s\n", hex);
-		return 0;
+	if (use_symlink) {
+		struct stat st;
+		if (stat(source, &st)) {
+			if (!warn_if_not_exists && errno == ENOENT)
+				return -1;
+			fprintf(stderr, "cannot stat %s: %s\n", source,
+				strerror(errno));
+			return -1;
+		}
+		if (!symlink(source, dest)) {
+			pull_say("symlink %s\n", hex);
+			return 0;
+		}
 	}
 	if (use_filecopy) {
-		int ifd, ofd, status;
-		struct stat st;
-		void *map;
+		int ifd, ofd, status = 0;
+
 		ifd = open(source, O_RDONLY);
-		if (ifd < 0 || fstat(ifd, &st) < 0) {
-			if (ifd >= 0)
-				close(ifd);
+		if (ifd < 0) {
+			if (!warn_if_not_exists && errno == ENOENT)
+				return -1;
 			fprintf(stderr, "cannot open %s\n", source);
 			return -1;
 		}
-		map = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, ifd, 0);
-		close(ifd);
-		if (map == MAP_FAILED) {
-			fprintf(stderr, "cannot mmap %s\n", source);
+		ofd = open(dest, O_WRONLY | O_CREAT | O_EXCL, 0666);
+		if (ofd < 0) {
+			fprintf(stderr, "cannot open %s\n", dest);
+			close(ifd);
 			return -1;
 		}
-		ofd = open(dest, O_WRONLY | O_CREAT | O_EXCL, 0666);
-		status = ((ofd < 0) ||
-			  (write(ofd, map, st.st_size) != st.st_size));
-		munmap(map, st.st_size);
-		if (ofd >= 0)
-			close(ofd);
+		status = copy_fd(ifd, ofd);
+		close(ofd);
 		if (status)
 			fprintf(stderr, "cannot write %s\n", dest);
 		else
@@ -121,11 +130,11 @@ static int fetch_pack(const unsigned char *sha1)
 	sprintf(filename, "%s/objects/pack/pack-%s.pack", 
 		path, sha1_to_hex(target->sha1));
 	copy_file(filename, sha1_pack_name(target->sha1),
-		  sha1_to_hex(target->sha1));
+		  sha1_to_hex(target->sha1), 1);
 	sprintf(filename, "%s/objects/pack/pack-%s.idx", 
 		path, sha1_to_hex(target->sha1));
 	copy_file(filename, sha1_pack_index_name(target->sha1),
-		  sha1_to_hex(target->sha1));
+		  sha1_to_hex(target->sha1), 1);
 	install_packed_git(target);
 	return 0;
 }
@@ -135,7 +144,7 @@ static int fetch_file(const 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);
+	char *dest_filename = sha1_file_name(sha1);
 
  	if (object_name_start < 0) {
 		strcpy(filename, path); /* e.g. git.git */
@@ -146,12 +155,15 @@ static int fetch_file(const unsigned char *sha1)
 	filename[object_name_start+1] = hex[1];
 	filename[object_name_start+2] = '/';
 	strcpy(filename + object_name_start + 3, hex + 2);
-	return copy_file(filename, dest_filename, hex);
+	return copy_file(filename, dest_filename, hex, 0);
 }
 
 int fetch(unsigned char *sha1)
 {
-	return fetch_file(sha1) && fetch_pack(sha1);
+	if (has_sha1_file(sha1))
+		return 0;
+	else
+		return fetch_file(sha1) && fetch_pack(sha1);
 }
 
 int fetch_ref(char *ref, unsigned char *sha1)
@@ -183,19 +195,25 @@ int fetch_ref(char *ref, unsigned char *sha1)
 }
 
 static const char local_pull_usage[] =
-"git-local-fetch [-c] [-t] [-a] [-d] [-v] [-w filename] [--recover] [-l] [-s] [-n] commit-id path";
+"git-local-fetch [-c] [-t] [-a] [-v] [-w filename] [--recover] [-l] [-s] [-n] [--stdin] 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)
+int main(int argc, const char **argv)
 {
-	char *commit_id;
+	int commits;
+	const char **write_ref = NULL;
+	char **commit_id;
 	int arg = 1;
 
+	setup_ident();
+	setup_git_directory();
+	git_config(git_default_config);
+
 	while (arg < argc && argv[arg][0] == '-') {
 		if (argv[arg][1] == 't')
 			get_tree = 1;
@@ -215,18 +233,30 @@ int main(int argc, char **argv)
 		else if (argv[arg][1] == 'v')
 			get_verbosely = 1;
 		else if (argv[arg][1] == 'w')
-			write_ref = argv[++arg];
+			write_ref = &argv[++arg];
+		else if (!strcmp(argv[arg], "--recover"))
+			get_recover = 1;
+		else if (!strcmp(argv[arg], "--stdin"))
+			commits_on_stdin = 1;
 		else
 			usage(local_pull_usage);
 		arg++;
 	}
-	if (argc < arg + 2)
+	if (argc < arg + 2 - commits_on_stdin)
 		usage(local_pull_usage);
-	commit_id = argv[arg];
-	path = argv[arg + 1];
+	if (commits_on_stdin) {
+		commits = pull_targets_stdin(&commit_id, &write_ref);
+	} else {
+		commit_id = (char **) &argv[arg++];
+		commits = 1;
+	}
+	path = argv[arg];
 
-	if (pull(commit_id))
+	if (pull(commits, commit_id, write_ref, path))
 		return 1;
 
+	if (commits_on_stdin)
+		pull_targets_free(commits, commit_id, write_ref);
+
 	return 0;
 }