Merge branch 'jc/maint-1.6.0-pack-directory'

* jc/maint-1.6.0-pack-directory:
  Make sure objects/pack exists before creating a new pack

diff --git a/builtin-pack-objects.c b/builtin-pack-objects.c
index cb51916fe33a904b8ab11b7c43dfe3a84ec11705..bcefa52c69481ceb301a96af6402ca2a029144fb 100644 (file)
--- a/builtin-pack-objects.c
+++ b/builtin-pack-objects.c
@@ -488,9 +488,8 @@ static void write_pack_file(void)
                } else {
                        char tmpname[PATH_MAX];
                        int fd;
-                       snprintf(tmpname, sizeof(tmpname),
-                                "%s/pack/tmp_pack_XXXXXX", get_object_directory());
-                       fd = xmkstemp(tmpname);
+                       fd = odb_mkstemp(tmpname, sizeof(tmpname),
+                                        "pack/tmp_pack_XXXXXX");
                        pack_tmp_name = xstrdup(tmpname);
                        f = sha1fd(fd, pack_tmp_name);
                }

diff --git a/fast-import.c b/fast-import.c
index 3ef3413e69896d45012ea94b3678959d5d2cceb0..3748ddf48d9bdeea890af805016b69e76493a79d 100644 (file)
--- a/fast-import.c
+++ b/fast-import.c
@@ -817,9 +817,8 @@ static void start_packfile(void)
        struct pack_header hdr;
        int pack_fd;
 
-       snprintf(tmpfile, sizeof(tmpfile),
-               "%s/pack/tmp_pack_XXXXXX", get_object_directory());
-       pack_fd = xmkstemp(tmpfile);
+       pack_fd = odb_mkstemp(tmpfile, sizeof(tmpfile),
+                             "pack/tmp_pack_XXXXXX");
        p = xcalloc(1, sizeof(*p) + strlen(tmpfile) + 2);
        strcpy(p->pack_name, tmpfile);
        p->pack_fd = pack_fd;
@@ -879,9 +878,8 @@ static char *create_index(void)
                c = next;
        }
 
-       snprintf(tmpfile, sizeof(tmpfile),
-               "%s/pack/tmp_idx_XXXXXX", get_object_directory());
-       idx_fd = xmkstemp(tmpfile);
+       idx_fd = odb_mkstemp(tmpfile, sizeof(tmpfile),
+                            "pack/tmp_idx_XXXXXX");
        f = sha1fd(idx_fd, tmpfile);
        sha1write(f, array, 256 * sizeof(int));
        git_SHA1_Init(&ctx);
@@ -907,9 +905,7 @@ static char *keep_pack(char *curr_index_name)
        chmod(pack_data->pack_name, 0444);
        chmod(curr_index_name, 0444);
 
-       snprintf(name, sizeof(name), "%s/pack/pack-%s.keep",
-                get_object_directory(), sha1_to_hex(pack_data->sha1));
-       keep_fd = open(name, O_RDWR|O_CREAT|O_EXCL, 0600);
+       keep_fd = odb_pack_keep(name, sizeof(name), pack_data->sha1);
        if (keep_fd < 0)
                die("cannot create keep file");
        write_or_die(keep_fd, keep_msg, strlen(keep_msg));

diff --git a/git-compat-util.h b/git-compat-util.h
index 079cbe9440dc73ba8703fe2efb70bd6677535a05..dcf41277502f5fb8fc99b310ebdaf63b6781b3ea 100644 (file)
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -303,6 +303,8 @@ extern ssize_t xwrite(int fd, const void *buf, size_t len);
 extern int xdup(int fd);
 extern FILE *xfdopen(int fd, const char *mode);
 extern int xmkstemp(char *template);
+extern int odb_mkstemp(char *template, size_t limit, const char *pattern);
+extern int odb_pack_keep(char *name, size_t namesz, unsigned char *sha1);
 
 static inline size_t xsize_t(off_t len)
 {

diff --git a/index-pack.c b/index-pack.c
index f7a38079e1ec1a68606ba728964efbd5b2a04c4c..7fee8725333860dbbd13d8de5ae7baf1ef33976d 100644 (file)
--- a/index-pack.c
+++ b/index-pack.c
@@ -172,9 +172,8 @@ 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);
@@ -794,22 +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";
                }
        }

diff --git a/pack-write.c b/pack-write.c
index b426006c5851c98fce8894bd9f76cd51a7cde170..7053538f4cf44e15a788ab46dfb680ee85ce4fc2 100644 (file)
--- a/pack-write.c
+++ b/pack-write.c
@@ -44,9 +44,7 @@ char *write_idx_file(char *index_name, struct pack_idx_entry **objects,
 
        if (!index_name) {
                static char tmpfile[PATH_MAX];
-               snprintf(tmpfile, sizeof(tmpfile),
-                        "%s/pack/tmp_idx_XXXXXX", get_object_directory());
-               fd = xmkstemp(tmpfile);
+               fd = odb_mkstemp(tmpfile, sizeof(tmpfile), "pack/tmp_idx_XXXXXX");
                index_name = xstrdup(tmpfile);
        } else {
                unlink(index_name);
@@ -239,7 +237,7 @@ char *index_pack_lockfile(int ip_out)
        char packname[46];
 
        /*
-        * The first thing we expects from index-pack's output
+        * The first thing we expect from index-pack's output
         * is "pack\t%40s\n" or "keep\t%40s\n" (46 bytes) where
         * %40s is the newly created pack SHA1 name.  In the "keep"
         * case, we need it to remove the corresponding .keep file

diff --git a/t/t5300-pack-object.sh b/t/t5300-pack-object.sh
index 04522857abb716b8866e0f5153ec33b3ac780536..ccfc64c6eef7e0aba7bd8a8496427470e9020309 100755 (executable)
--- a/t/t5300-pack-object.sh
+++ b/t/t5300-pack-object.sh
@@ -180,6 +180,23 @@ test_expect_success \
 
 unset GIT_OBJECT_DIRECTORY
 
+test_expect_success 'survive missing objects/pack directory' '
+       (
+               rm -fr missing-pack &&
+               mkdir missing-pack &&
+               cd missing-pack &&
+               git init &&
+               GOP=.git/objects/pack
+               rm -fr $GOP &&
+               git index-pack --stdin --keep=test <../test-3-${packname_3}.pack &&
+               test -f $GOP/pack-${packname_3}.pack &&
+               test_cmp $GOP/pack-${packname_3}.pack ../test-3-${packname_3}.pack &&
+               test -f $GOP/pack-${packname_3}.idx &&
+               test_cmp $GOP/pack-${packname_3}.idx ../test-3-${packname_3}.idx &&
+               test -f $GOP/pack-${packname_3}.keep
+       )
+'
+
 test_expect_success \
     'verify pack' \
     'git verify-pack   test-1-${packname_1}.idx \

diff --git a/wrapper.c b/wrapper.c
index c85ca52ec63a679a2da7bd8980ad4e2df4e38794..b07cdf299af66d4c503d5a788858b9cc56683143 100644 (file)
--- a/wrapper.c
+++ b/wrapper.c
@@ -256,3 +256,35 @@ int git_inflate(z_streamp strm, int flush)
        error("inflate: %s (%s)", err, strm->msg ? strm->msg : "no message");
        return ret;
 }
+
+int odb_mkstemp(char *template, size_t limit, const char *pattern)
+{
+       int fd;
+
+       snprintf(template, limit, "%s/%s",
+                get_object_directory(), pattern);
+       fd = mkstemp(template);
+       if (0 <= fd)
+               return fd;
+
+       /* slow path */
+       safe_create_leading_directories(template);
+       snprintf(template, limit, "%s/%s",
+                get_object_directory(), pattern);
+       return xmkstemp(template);
+}
+
+int odb_pack_keep(char *name, size_t namesz, unsigned char *sha1)
+{
+       int fd;
+
+       snprintf(name, namesz, "%s/pack/pack-%s.keep",
+                get_object_directory(), sha1_to_hex(sha1));
+       fd = open(name, O_RDWR|O_CREAT|O_EXCL, 0600);
+       if (0 <= fd)
+               return fd;
+
+       /* slow path */
+       safe_create_leading_directories(name);
+       return open(name, O_RDWR|O_CREAT|O_EXCL, 0600);
+}