Quiet make: do not leave Windows behind

[git.git] / sha1_file.c

diff --git a/sha1_file.c b/sha1_file.c
index 54972f97e004e2794416baac2f79806a608dc88e..e73cd4fc0ba2daac14f604f1973d1b0658212b26 100644 (file)
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -720,6 +720,8 @@ static int open_packed_git_1(struct packed_git *p)
                return error("packfile %s index unavailable", p->pack_name);
 
        p->pack_fd = open(p->pack_name, O_RDONLY);
+       while (p->pack_fd < 0 && errno == EMFILE && unuse_one_window(p, -1))
+               p->pack_fd = open(p->pack_name, O_RDONLY);
        if (p->pack_fd < 0 || fstat(p->pack_fd, &st))
                return -1;
 
@@ -791,7 +793,7 @@ static int in_window(struct pack_window *win, off_t offset)
                && (offset + 20) <= (win_off + win->len);
 }
 
-unsigned char* use_pack(struct packed_git *p,
+unsigned char *use_pack(struct packed_git *p,
                struct pack_window **w_cursor,
                off_t offset,
                unsigned int *left)
@@ -937,6 +939,8 @@ static void prepare_packed_git_one(char *objdir, int local)
        sprintf(path, "%s/pack", objdir);
        len = strlen(path);
        dir = opendir(path);
+       while (!dir && errno == EMFILE && unuse_one_window(packed_git, -1))
+               dir = opendir(path);
        if (!dir) {
                if (errno != ENOENT)
                        error("unable to open object pack directory: %s: %s",
@@ -1919,8 +1923,7 @@ off_t find_pack_entry_one(const unsigned char *sha1,
        return 0;
 }
 
-static int find_pack_ent(const unsigned char *sha1, struct pack_entry *e,
-                        int kept_pack_only)
+static int find_pack_entry(const unsigned char *sha1, struct pack_entry *e)
 {
        static struct packed_git *last_found = (void *)1;
        struct packed_git *p;
@@ -1932,8 +1935,6 @@ static int find_pack_ent(const unsigned char *sha1, struct pack_entry *e,
        p = (last_found == (void *)1) ? packed_git : last_found;
 
        do {
-               if (kept_pack_only && !p->pack_keep)
-                       goto next;
                if (p->num_bad_objects) {
                        unsigned i;
                        for (i = 0; i < p->num_bad_objects; i++)
@@ -1973,16 +1974,6 @@ static int find_pack_ent(const unsigned char *sha1, struct pack_entry *e,
        return 0;
 }
 
-static int find_pack_entry(const unsigned char *sha1, struct pack_entry *e)
-{
-       return find_pack_ent(sha1, e, 0);
-}
-
-static int find_kept_pack_entry(const unsigned char *sha1, struct pack_entry *e)
-{
-       return find_pack_ent(sha1, e, 1);
-}
-
 struct packed_git *find_sha1_pack(const unsigned char *sha1,
                                  struct packed_git *packs)
 {
@@ -2229,12 +2220,18 @@ static void write_sha1_file_prepare(const void *buf, unsigned long len,
 }
 
 /*
- * Move the just written object into its final resting place
+ * Move the just written object into its final resting place.
+ * NEEDSWORK: this should be renamed to finalize_temp_file() as
+ * "moving" is only a part of what it does, when no patch between
+ * master to pu changes the call sites of this function.
  */
 int move_temp_to_file(const char *tmpfile, const char *filename)
 {
        int ret = 0;
-       if (link(tmpfile, filename))
+
+       if (object_creation_mode == OBJECT_CREATION_USES_RENAMES)
+               goto try_rename;
+       else if (link(tmpfile, filename))
                ret = errno;
 
        /*
@@ -2245,15 +2242,16 @@ int move_temp_to_file(const char *tmpfile, const char *filename)
         *
         * The same holds for FAT formatted media.
         *
-        * When this succeeds, we just return 0. We have nothing
+        * When this succeeds, we just return.  We have nothing
         * left to unlink.
         */
        if (ret && ret != EEXIST) {
+       try_rename:
                if (!rename(tmpfile, filename))
-                       return 0;
+                       goto out;
                ret = errno;
        }
-       unlink(tmpfile);
+       unlink_or_warn(tmpfile);
        if (ret) {
                if (ret != EEXIST) {
                        return error("unable to write sha1 filename %s: %s\n", filename, strerror(ret));
@@ -2261,6 +2259,9 @@ int move_temp_to_file(const char *tmpfile, const char *filename)
                /* FIXME!!! Collision check here ? */
        }
 
+out:
+       if (set_shared_perm(filename, (S_IFREG|0444)))
+               return error("unable to set permission to '%s'", filename);
        return 0;
 }
 
@@ -2285,7 +2286,6 @@ static void close_sha1_file(int fd)
 {
        if (fsync_object_files)
                fsync_or_die(fd, "sha1 file");
-       fchmod(fd, 0444);
        if (close(fd) != 0)
                die("error when closing sha1 file (%s)", strerror(errno));
 }
@@ -2343,6 +2343,8 @@ static int write_loose_object(const unsigned char *sha1, char *hdr, int hdrlen,
 
        filename = sha1_file_name(sha1);
        fd = create_tmpfile(tmpfile, sizeof(tmpfile), filename);
+       while (fd < 0 && errno == EMFILE && unuse_one_window(packed_git, -1))
+               fd = create_tmpfile(tmpfile, sizeof(tmpfile), filename);
        if (fd < 0) {
                if (errno == EACCES)
                        return error("insufficient permission for adding an object to repository database %s\n", get_object_directory());
@@ -2456,12 +2458,6 @@ int has_sha1_pack(const unsigned char *sha1)
        return find_pack_entry(sha1, &e);
 }
 
-int has_sha1_kept_pack(const unsigned char *sha1)
-{
-       struct pack_entry e;
-       return find_kept_pack_entry(sha1, &e);
-}
-
 int has_sha1_file(const unsigned char *sha1)
 {
        struct pack_entry e;