X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=checkout-index.c;h=53dd8cba6f0c56125545acd46f1091366949f89b;hb=5e6f85f6c1d988d125dfcba16bb43a9a65f9eab3;hp=97845324beb9002a0fed0dd1184988716faa9ed2;hpb=d67c4af41f7975940e8fec6405411581570eb672;p=git.git

diff --git a/checkout-index.c b/checkout-index.c
index 97845324..53dd8cba 100644
--- a/checkout-index.c
+++ b/checkout-index.c
@@ -34,6 +34,10 @@
  */
 #include "cache.h"
 
+static const char *prefix;
+static int prefix_length;
+static int checkout_stage; /* default to checkout stage0 */
+
 static struct checkout state = {
 	.base_dir = "",
 	.base_dir_len = 0,
@@ -45,20 +49,36 @@ static struct checkout state = {
 
 static int checkout_file(const char *name)
 {
-	int pos = cache_name_pos(name, strlen(name));
-	if (pos < 0) {
-		if (!state.quiet) {
-			pos = -pos - 1;
-			fprintf(stderr,
-				"git-checkout-index: %s is %s.\n",
-				name,
-				(pos < active_nr &&
-				 !strcmp(active_cache[pos]->name, name)) ?
-				"unmerged" : "not in the cache");
-		}
-		return -1;
+	int namelen = strlen(name);
+	int pos = cache_name_pos(name, namelen);
+	int has_same_name = 0;
+
+	if (pos < 0)
+		pos = -pos - 1;
+
+	while (pos < active_nr) {
+		struct cache_entry *ce = active_cache[pos];
+		if (ce_namelen(ce) != namelen ||
+		    memcmp(ce->name, name, namelen))
+			break;
+		has_same_name = 1;
+		if (checkout_stage == ce_stage(ce))
+			return checkout_entry(ce, &state);
+		pos++;
 	}
-	return checkout_entry(active_cache[pos], &state);
+
+	if (!state.quiet) {
+		fprintf(stderr, "git-checkout-index: %s ", name);
+		if (!has_same_name)
+			fprintf(stderr, "is not in the cache");
+		else if (checkout_stage)
+			fprintf(stderr, "does not exist at stage %d",
+				checkout_stage);
+		else
+			fprintf(stderr, "is unmerged");
+		fputc('\n', stderr);
+	}
+	return -1;
 }
 
 static int checkout_all(void)
@@ -67,7 +87,11 @@ static int checkout_all(void)
 
 	for (i = 0; i < active_nr ; i++) {
 		struct cache_entry *ce = active_cache[i];
-		if (ce_stage(ce))
+		if (ce_stage(ce) != checkout_stage)
+			continue;
+		if (prefix && *prefix &&
+		    (ce_namelen(ce) <= prefix_length ||
+		     memcmp(prefix, ce->name, prefix_length)))
 			continue;
 		if (checkout_entry(ce, &state) < 0)
 			errs++;
@@ -81,14 +105,18 @@ static int checkout_all(void)
 }
 
 static const char checkout_cache_usage[] =
-"git-checkout-index [-u] [-q] [-a] [-f] [-n] [--prefix=<string>] [--] <file>...";
+"git-checkout-index [-u] [-q] [-a] [-f] [-n] [--stage=[123]] [--prefix=<string>] [--] <file>...";
 
 static struct cache_file cache_file;
 
 int main(int argc, char **argv)
 {
-	int i, force_filename = 0;
+	int i;
 	int newfd = -1;
+	int all = 0;
+
+	prefix = setup_git_directory();
+	prefix_length = prefix ? strlen(prefix) : 0;
 
 	if (read_cache() < 0) {
 		die("invalid cache");
@@ -96,58 +124,78 @@ int main(int argc, char **argv)
 
 	for (i = 1; i < argc; i++) {
 		const char *arg = argv[i];
-		if (!force_filename) {
-			if (!strcmp(arg, "-a")) {
-				checkout_all();
-				continue;
-			}
-			if (!strcmp(arg, "--")) {
-				force_filename = 1;
-				continue;
-			}
-			if (!strcmp(arg, "-f")) {
-				state.force = 1;
-				continue;
-			}
-			if (!strcmp(arg, "-q")) {
-				state.quiet = 1;
-				continue;
-			}
-			if (!strcmp(arg, "-n")) {
-				state.not_new = 1;
-				continue;
-			}
-			if (!strcmp(arg, "-u")) {
-				state.refresh_cache = 1;
-				if (newfd < 0)
-					newfd = hold_index_file_for_update
-						(&cache_file,
-						 get_index_file());
-				if (newfd < 0)
-					die("cannot open index.lock file.");
-				continue;
-			}
-			if (!memcmp(arg, "--prefix=", 9)) {
-				state.base_dir = arg+9;
-				state.base_dir_len = strlen(state.base_dir);
-				continue;
-			}
-			if (arg[0] == '-')
-				usage(checkout_cache_usage);
+
+		if (!strcmp(arg, "--")) {
+			i++;
+			break;
+		}
+		if (!strcmp(arg, "-a") || !strcmp(arg, "--all")) {
+			all = 1;
+			continue;
+		}
+		if (!strcmp(arg, "-f") || !strcmp(arg, "--force")) {
+			state.force = 1;
+			continue;
+		}
+		if (!strcmp(arg, "-q") || !strcmp(arg, "--quiet")) {
+			state.quiet = 1;
+			continue;
 		}
-		if (state.base_dir_len) {
-			/* when --prefix is specified we do not
-			 * want to update cache.
-			 */
-			if (state.refresh_cache) {
-				close(newfd); newfd = -1;
-				rollback_index_file(&cache_file);
-			}
-			state.refresh_cache = 0;
+		if (!strcmp(arg, "-n") || !strcmp(arg, "--no-create")) {
+			state.not_new = 1;
+			continue;
 		}
-		checkout_file(arg);
+		if (!strcmp(arg, "-u") || !strcmp(arg, "--index")) {
+			state.refresh_cache = 1;
+			if (newfd < 0)
+				newfd = hold_index_file_for_update
+					(&cache_file,
+					 get_index_file());
+			if (newfd < 0)
+				die("cannot open index.lock file.");
+			continue;
+		}
+		if (!strncmp(arg, "--prefix=", 9)) {
+			state.base_dir = arg+9;
+			state.base_dir_len = strlen(state.base_dir);
+			continue;
+		}
+		if (!strncmp(arg, "--stage=", 8)) {
+			int ch = arg[8];
+			if ('1' <= ch && ch <= '3')
+				checkout_stage = arg[8] - '0';
+			else
+				die("stage should be between 1 and 3");
+			continue;
+		}
+		if (arg[0] == '-')
+			usage(checkout_cache_usage);
+		break;
 	}
 
+	if (state.base_dir_len) {
+		/* when --prefix is specified we do not
+		 * want to update cache.
+		 */
+		if (state.refresh_cache) {
+			close(newfd); newfd = -1;
+			rollback_index_file(&cache_file);
+		}
+		state.refresh_cache = 0;
+	}
+
+	/* Check out named files first */
+	for ( ; i < argc; i++) {
+		const char *arg = argv[i];
+
+		if (all)
+			die("git-checkout-index: don't mix '--all' and explicit filenames");
+		checkout_file(prefix_path(prefix, prefix_length, arg));
+	}
+
+	if (all)
+		checkout_all();
+
 	if (0 <= newfd &&
 	    (write_cache(newfd, active_cache, active_nr) ||
 	     commit_index_file(&cache_file)))