git-p4: add Git LFS backend for large file system

diff --git a/shallow.c b/shallow.c
index 4ded4a8cde45e01bdd2d551ccf45226e82f1ff4c..d49a3d6e9f02e292a04981e34f0a2d0b1ffa00d0 100644 (file)
--- a/shallow.c
+++ b/shallow.c
@@ -1,4 +1,5 @@
 #include "cache.h"
+#include "tempfile.h"
 #include "lockfile.h"
 #include "commit.h"
 #include "tag.h"
@@ -208,50 +209,28 @@ int write_shallow_commits(struct strbuf *out, int use_pack_protocol,
        return write_shallow_commits_1(out, use_pack_protocol, extra, 0);
 }
 
-static struct strbuf temporary_shallow = STRBUF_INIT;
-
-static void remove_temporary_shallow(void)
-{
-       if (temporary_shallow.len) {
-               unlink_or_warn(temporary_shallow.buf);
-               strbuf_reset(&temporary_shallow);
-       }
-}
-
-static void remove_temporary_shallow_on_signal(int signo)
-{
-       remove_temporary_shallow();
-       sigchain_pop(signo);
-       raise(signo);
-}
+static struct tempfile temporary_shallow;
 
 const char *setup_temporary_shallow(const struct sha1_array *extra)
 {
        struct strbuf sb = STRBUF_INIT;
        int fd;
 
-       if (temporary_shallow.len)
-               die("BUG: attempt to create two temporary shallow files");
-
        if (write_shallow_commits(&sb, 0, extra)) {
-               strbuf_addstr(&temporary_shallow, git_path("shallow_XXXXXX"));
-               fd = xmkstemp(temporary_shallow.buf);
-
-               atexit(remove_temporary_shallow);
-               sigchain_push_common(remove_temporary_shallow_on_signal);
+               fd = xmks_tempfile(&temporary_shallow, git_path("shallow_XXXXXX"));
 
                if (write_in_full(fd, sb.buf, sb.len) != sb.len)
                        die_errno("failed to write to %s",
-                                 temporary_shallow.buf);
-               close(fd);
+                                 get_tempfile_path(&temporary_shallow));
+               close_tempfile(&temporary_shallow);
                strbuf_release(&sb);
-               return temporary_shallow.buf;
+               return get_tempfile_path(&temporary_shallow);
        }
        /*
         * is_repository_shallow() sees empty string as "no shallow
         * file".
         */
-       return temporary_shallow.buf;
+       return get_tempfile_path(&temporary_shallow);
 }
 
 void setup_alternate_shallow(struct lock_file *shallow_lock,
@@ -267,8 +246,8 @@ void setup_alternate_shallow(struct lock_file *shallow_lock,
        if (write_shallow_commits(&sb, 0, extra)) {
                if (write_in_full(fd, sb.buf, sb.len) != sb.len)
                        die_errno("failed to write to %s",
-                                 shallow_lock->filename.buf);
-               *alternate_shallow_file = shallow_lock->filename.buf;
+                                 get_lock_file_path(shallow_lock));
+               *alternate_shallow_file = get_lock_file_path(shallow_lock);
        } else
                /*
                 * is_repository_shallow() sees empty string as "no
@@ -314,7 +293,7 @@ void prune_shallow(int show_only)
        if (write_shallow_commits_1(&sb, 0, NULL, SEEN_ONLY)) {
                if (write_in_full(fd, sb.buf, sb.len) != sb.len)
                        die_errno("failed to write to %s",
-                                 shallow_lock.filename.buf);
+                                 get_lock_file_path(&shallow_lock));
                commit_lock_file(&shallow_lock);
        } else {
                unlink(git_path_shallow());