push: fix segfault for odd config

diff --git a/index-pack.c b/index-pack.c
index c0a3d97a1276265d3f253dc396ded9c54d2caf5c..7fee8725333860dbbd13d8de5ae7baf1ef33976d 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>] }";
@@ -171,14 +172,13 @@ static char *open_pack_file(char *pack_name)
                input_fd = 0;
                if (!pack_name) {
                        static char tmpfile[PATH_MAX];
-                       snprintf(tmpfile, sizeof(tmpfile),
-                                "%s/pack/tmp_pack_XXXXXX", get_object_directory());
-                       output_fd = xmkstemp(tmpfile);
+                       output_fd = odb_mkstemp(tmpfile, sizeof(tmpfile),
+                                               "pack/tmp_pack_XXXXXX");
                        pack_name = xstrdup(tmpfile);
                } 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("unable to create %s: %s", pack_name, strerror(errno));
                pack_fd = output_fd;
        } else {
                input_fd = open(pack_name, O_RDONLY);
@@ -793,22 +793,24 @@ static void final(const char *final_pack_name, const char *curr_pack_name,
 
        if (keep_msg) {
                int keep_fd, keep_msg_len = strlen(keep_msg);
-               if (!keep_name) {
-                       snprintf(name, sizeof(name), "%s/pack/pack-%s.keep",
-                                get_object_directory(), sha1_to_hex(sha1));
-                       keep_name = name;
-               }
-               keep_fd = open(keep_name, O_RDWR|O_CREAT|O_EXCL, 0600);
+
+               if (!keep_name)
+                       keep_fd = odb_pack_keep(name, sizeof(name), sha1);
+               else
+                       keep_fd = open(keep_name, O_RDWR|O_CREAT|O_EXCL, 0600);
+
                if (keep_fd < 0) {
                        if (errno != EEXIST)
-                               die("cannot write keep file");
+                               die("cannot write keep file '%s' (%s)",
+                                   keep_name, strerror(errno));
                } 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 write keep file");
+                               die("cannot close written keep file '%s' (%s)",
+                                   keep_name, strerror(errno));
                        report = "keep";
                }
        }
@@ -880,6 +882,8 @@ 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().