[PATCH] Allow symlinks in the leading path in checkout-cache --prefix=

[git.git] / checkout-cache.c

diff --git a/checkout-cache.c b/checkout-cache.c
index 9cd289c..9d09c39 100644 (file)
--- a/checkout-cache.c
+++ b/checkout-cache.c
@@ -37,6 +37,8 @@
 #include "cache.h"
 
 static int force = 0, quiet = 0, not_new = 0, refresh_cache = 0;
+static const char *base_dir = "";
+static int base_dir_len = 0;
 
 static void create_directories(const char *path)
 {
@@ -51,10 +53,10 @@ static void create_directories(const char *path)
                if (mkdir(buf, 0755)) {
                        if (errno == EEXIST) {
                                struct stat st;
-                               if (!lstat(buf, &st) && S_ISDIR(st.st_mode))
-                                       continue; /* ok */
-                               if (force && !unlink(buf) && !mkdir(buf, 0755))
+                               if (len > base_dir_len && force && !unlink(buf) && !mkdir(buf, 0755))
                                        continue;
+                               if (!stat(buf, &st) && S_ISDIR(st.st_mode))
+                                       continue; /* ok */
                        }
                        die("cannot create directory at %s", buf);
                }
@@ -163,11 +165,11 @@ static int write_entry(struct cache_entry *ce, const char *path)
        return 0;
 }
 
-static int checkout_entry(struct cache_entry *ce, const char *base_dir)
+static int checkout_entry(struct cache_entry *ce)
 {
        struct stat st;
        static char path[MAXPATHLEN+1];
-       int len = strlen(base_dir);
+       int len = base_dir_len;
 
        memcpy(path, base_dir, len);
        strcpy(path + len, ce->name);
@@ -194,7 +196,7 @@ static int checkout_entry(struct cache_entry *ce, const char *base_dir)
        return write_entry(ce, path);
 }
 
-static int checkout_file(const char *name, const char *base_dir)
+static int checkout_file(const char *name)
 {
        int pos = cache_name_pos(name, strlen(name));
        if (pos < 0) {
@@ -209,10 +211,10 @@ static int checkout_file(const char *name, const char *base_dir)
                }
                return -1;
        }
-       return checkout_entry(active_cache[pos], base_dir);
+       return checkout_entry(active_cache[pos]);
 }
 
-static int checkout_all(const char *base_dir)
+static int checkout_all(void)
 {
        int i;
 
@@ -220,7 +222,7 @@ static int checkout_all(const char *base_dir)
                struct cache_entry *ce = active_cache[i];
                if (ce_stage(ce))
                        continue;
-               if (checkout_entry(ce, base_dir) < 0)
+               if (checkout_entry(ce) < 0)
                        return -1;
        }
        return 0;
@@ -229,7 +231,6 @@ static int checkout_all(const char *base_dir)
 int main(int argc, char **argv)
 {
        int i, force_filename = 0;
-       const char *base_dir = "";
        struct cache_file cache_file;
        int newfd = -1;
 
@@ -241,7 +242,7 @@ int main(int argc, char **argv)
                const char *arg = argv[i];
                if (!force_filename) {
                        if (!strcmp(arg, "-a")) {
-                               checkout_all(base_dir);
+                               checkout_all();
                                continue;
                        }
                        if (!strcmp(arg, "--")) {
@@ -272,10 +273,11 @@ int main(int argc, char **argv)
                        }
                        if (!memcmp(arg, "--prefix=", 9)) {
                                base_dir = arg+9;
+                               base_dir_len = strlen(base_dir);
                                continue;
                        }
                }
-               if (base_dir[0]) {
+               if (base_dir_len) {
                        /* when --prefix is specified we do not
                         * want to update cache.
                         */
@@ -285,7 +287,7 @@ int main(int argc, char **argv)
                        }
                        refresh_cache = 0;
                }
-               checkout_file(arg, base_dir);
+               checkout_file(arg);
        }
 
        if (0 <= newfd &&