preserve mtime of local clone

[git.git] / index-pack.c

diff --git a/index-pack.c b/index-pack.c
index 7697b1dfe378183dc47636fa18671722198b8045..340074fc793e8e7534bb168784a7051af6d81b34 100644 (file)
--- a/index-pack.c
+++ b/index-pack.c
@@ -8,6 +8,7 @@
 #include "tree.h"
 #include "progress.h"
 #include "fsck.h"
+#include "exec_cmd.h"
 
 static const char index_pack_usage[] =
 "git index-pack [-v] [-o <index-file>] [{ ---keep | --keep=<msg> }] [--strict] { <pack-file> | --stdin [--fix-thin] [<pack-file>] }";
@@ -142,7 +143,7 @@ static void *fill(int min)
                if (ret <= 0) {
                        if (!ret)
                                die("early EOF");
-                       die("read error on input: %s", strerror(errno));
+                       die_errno("read error on input");
                }
                input_len += ret;
                if (from_stdin)
@@ -177,13 +178,12 @@ static char *open_pack_file(char *pack_name)
                } else
                        output_fd = open(pack_name, O_CREAT|O_EXCL|O_RDWR, 0600);
                if (output_fd < 0)
-                       die("unable to create %s: %s\n", pack_name, strerror(errno));
+                       die_errno("unable to create '%s'", pack_name);
                pack_fd = output_fd;
        } else {
                input_fd = open(pack_name, O_RDONLY);
                if (input_fd < 0)
-                       die("cannot open packfile '%s': %s",
-                           pack_name, strerror(errno));
+                       die_errno("cannot open packfile '%s'", pack_name);
                output_fd = -1;
                pack_fd = input_fd;
        }
@@ -231,7 +231,7 @@ static void free_base_data(struct base_data *c)
 
 static void prune_base_data(struct base_data *retain)
 {
-       struct base_data *b = base_cache;
+       struct base_data *b;
        for (b = base_cache;
             base_cache_used > delta_base_cache_limit && b;
             b = b->child) {
@@ -292,8 +292,8 @@ static void *unpack_entry_data(unsigned long offset, unsigned long size)
 
 static void *unpack_raw_entry(struct object_entry *obj, union delta_base *delta_base)
 {
-       unsigned char *p, c;
-       unsigned long size;
+       unsigned char *p;
+       unsigned long size, c;
        off_t base_offset;
        unsigned shift;
        void *data;
@@ -311,7 +311,7 @@ static void *unpack_raw_entry(struct object_entry *obj, union delta_base *delta_
                p = fill(1);
                c = *p;
                use(1);
-               size += (c & 0x7fUL) << shift;
+               size += (c & 0x7f) << shift;
                shift += 7;
        }
        obj->size = size;
@@ -369,7 +369,7 @@ static void *get_data_from_pack(struct object_entry *obj)
        do {
                ssize_t n = pread(pack_fd, data + rdy, len - rdy, from + rdy);
                if (n < 0)
-                       die("cannot pread pack file: %s", strerror(errno));
+                       die_errno("cannot pread pack file");
                if (!n)
                        die("premature end of pack file, %lu bytes missing",
                            len - rdy);
@@ -468,7 +468,7 @@ static void sha1_object(const void *data, unsigned long size,
                                die("invalid %s", typename(type));
                        if (fsck_object(obj, 1, fsck_error_function))
                                die("Error in object");
-                       if (fsck_walk(obj, mark_link, 0))
+                       if (fsck_walk(obj, mark_link, NULL))
                                die("Not all child objects of %s are reachable", sha1_to_hex(obj->sha1));
 
                        if (obj->type == OBJ_TREE) {
@@ -630,7 +630,7 @@ static void parse_pack_objects(unsigned char *sha1)
 
        /* If input_fd is a file, we should have reached its end now. */
        if (fstat(input_fd, &st))
-               die("cannot fstat packfile: %s", strerror(errno));
+               die_errno("cannot fstat packfile");
        if (S_ISREG(st.st_mode) &&
                        lseek(input_fd, 0, SEEK_CUR) - input_len != st.st_size)
                die("pack has junk at the end");
@@ -787,7 +787,7 @@ static void final(const char *final_pack_name, const char *curr_pack_name,
                fsync_or_die(output_fd, curr_pack_name);
                err = close(output_fd);
                if (err)
-                       die("error while closing pack file: %s", strerror(errno));
+                       die_errno("error while closing pack file");
        }
 
        if (keep_msg) {
@@ -800,16 +800,16 @@ static void final(const char *final_pack_name, const char *curr_pack_name,
 
                if (keep_fd < 0) {
                        if (errno != EEXIST)
-                               die("cannot write keep file '%s' (%s)",
-                                   keep_name, strerror(errno));
+                               die_errno("cannot write keep file '%s'",
+                                         keep_name);
                } else {
                        if (keep_msg_len > 0) {
                                write_or_die(keep_fd, keep_msg, keep_msg_len);
                                write_or_die(keep_fd, "\n", 1);
                        }
                        if (close(keep_fd) != 0)
-                               die("cannot close written keep file '%s' (%s)",
-                                   keep_name, strerror(errno));
+                               die_errno("cannot close written keep file '%s'",
+                                   keep_name);
                        report = "keep";
                }
        }
@@ -822,8 +822,7 @@ static void final(const char *final_pack_name, const char *curr_pack_name,
                }
                if (move_temp_to_file(curr_pack_name, final_pack_name))
                        die("cannot store pack file");
-       }
-       if (from_stdin)
+       } else if (from_stdin)
                chmod(final_pack_name, 0444);
 
        if (final_index_name != curr_index_name) {
@@ -834,8 +833,8 @@ static void final(const char *final_pack_name, const char *curr_pack_name,
                }
                if (move_temp_to_file(curr_index_name, final_index_name))
                        die("cannot store index file");
-       }
-       chmod(final_index_name, 0444);
+       } else
+               chmod(final_index_name, 0444);
 
        if (!from_stdin) {
                printf("%s\n", sha1_to_hex(sha1));
@@ -881,6 +880,8 @@ int main(int argc, char **argv)
        struct pack_idx_entry **idx_objects;
        unsigned char pack_sha1[20];
 
+       git_extract_argv0_path(argv[0]);
+
        /*
         * We wish to read the repository's config file if any, and
         * for that it is necessary to call setup_git_directory_gently().