1 files changed, 41 insertions, 24 deletions

diff --git a/entry.c b/entry.c
index d72f811..82bf725 100644
--- a/entry.c
+++ b/entry.c
@@ -1,7 +1,7 @@
 #include "cache.h"
 #include "blob.h"
 
-static void create_directories(const char *path, struct checkout *state)
+static void create_directories(const char *path, const struct checkout *state)
 {
 	int len = strlen(path);
 	char *buf = xmalloc(len + 1);
@@ -33,7 +33,7 @@ static void remove_subtree(const char *path)
 	char *name;
 	
 	if (!dir)
-		die("cannot opendir %s", path);
+		die("cannot opendir %s (%s)", path, strerror(errno));
 	strcpy(pathbuf, path);
 	name = pathbuf + strlen(path);
 	*name++ = '/';
@@ -45,15 +45,15 @@ static void remove_subtree(const char *path)
 			continue;
 		strcpy(name, de->d_name);
 		if (lstat(pathbuf, &st))
-			die("cannot lstat %s", pathbuf);
+			die("cannot lstat %s (%s)", pathbuf, strerror(errno));
 		if (S_ISDIR(st.st_mode))
 			remove_subtree(pathbuf);
 		else if (unlink(pathbuf))
-			die("cannot unlink %s", pathbuf);
+			die("cannot unlink %s (%s)", pathbuf, strerror(errno));
 	}
 	closedir(dir);
 	if (rmdir(path))
-		die("cannot rmdir %s", path);
+		die("cannot rmdir %s (%s)", path, strerror(errno));
 }
 
 static int create_file(const char *path, unsigned int mode)
@@ -62,26 +62,33 @@ static int create_file(const char *path, unsigned int mode)
 	return open(path, O_WRONLY | O_CREAT | O_EXCL, mode);
 }
 
-static int write_entry(struct cache_entry *ce, char *path, struct checkout *state, int to_tempfile)
+static void *read_blob_entry(struct cache_entry *ce, const char *path, unsigned long *size)
 {
-	int fd;
-	void *new;
-	unsigned long size;
-	long wrote;
 	enum object_type type;
+	void *new = read_sha1_file(ce->sha1, &type, size);
 
-	new = read_sha1_file(ce->sha1, &type, &size);
-	if (!new || type != OBJ_BLOB) {
-		if (new)
-			free(new);
-		return error("git-checkout-index: unable to read sha1 file of %s (%s)",
-			path, sha1_to_hex(ce->sha1));
+	if (new) {
+		if (type == OBJ_BLOB)
+			return new;
+		free(new);
 	}
+	return NULL;
+}
+
+static int write_entry(struct cache_entry *ce, char *path, const struct checkout *state, int to_tempfile)
+{
+	int fd;
+	long wrote;
+
 	switch (ntohl(ce->ce_mode) & S_IFMT) {
-		char *buf;
-		unsigned long nsize;
+		char *buf, *new;
+		unsigned long size;
 
 	case S_IFREG:
+		new = read_blob_entry(ce, path, &size);
+		if (!new)
+			return error("git-checkout-index: unable to read sha1 file of %s (%s)",
+				path, sha1_to_hex(ce->sha1));
 		if (to_tempfile) {
 			strcpy(path, ".merge_file_XXXXXX");
 			fd = mkstemp(path);
@@ -96,12 +103,10 @@ static int write_entry(struct cache_entry *ce, char *path, struct checkout *stat
 		/*
 		 * Convert from git internal format to working tree format
 		 */
-		buf = new;
-		nsize = size;
-		if (convert_to_working_tree(ce->name, &buf, &nsize)) {
+		buf = convert_to_working_tree(ce->name, new, &size);
+		if (buf) {
 			free(new);
 			new = buf;
-			size = nsize;
 		}
 
 		wrote = write_in_full(fd, new, size);
@@ -111,6 +116,10 @@ static int write_entry(struct cache_entry *ce, char *path, struct checkout *stat
 			return error("git-checkout-index: unable to write file %s", path);
 		break;
 	case S_IFLNK:
+		new = read_blob_entry(ce, path, &size);
+		if (!new)
+			return error("git-checkout-index: unable to read sha1 file of %s (%s)",
+				path, sha1_to_hex(ce->sha1));
 		if (to_tempfile || !has_symlinks) {
 			if (to_tempfile) {
 				strcpy(path, ".merge_link_XXXXXX");
@@ -136,8 +145,13 @@ static int write_entry(struct cache_entry *ce, char *path, struct checkout *stat
 						 "symlink %s (%s)", path, strerror(errno));
 		}
 		break;
+	case S_IFDIRLNK:
+		if (to_tempfile)
+			return error("git-checkout-index: cannot create temporary subproject %s", path);
+		if (mkdir(path, 0777) < 0)
+			return error("git-checkout-index: cannot create subproject directory %s", path);
+		break;
 	default:
-		free(new);
 		return error("git-checkout-index: unknown file mode for %s", path);
 	}
 
@@ -149,7 +163,7 @@ static int write_entry(struct cache_entry *ce, char *path, struct checkout *stat
 	return 0;
 }
 
-int checkout_entry(struct cache_entry *ce, struct checkout *state, char *topath)
+int checkout_entry(struct cache_entry *ce, const struct checkout *state, char *topath)
 {
 	static char path[PATH_MAX + 1];
 	struct stat st;
@@ -179,6 +193,9 @@ int checkout_entry(struct cache_entry *ce, struct checkout *state, char *topath)
 		 */
 		unlink(path);
 		if (S_ISDIR(st.st_mode)) {
+			/* If it is a gitlink, leave it alone! */
+			if (S_ISDIRLNK(ntohl(ce->ce_mode)))
+				return 0;
 			if (!state->force)
 				return error("%s is a directory", path);
 			remove_subtree(path);