ewah: support platforms that require aligned reads

diff --git a/builtin/repack.c b/builtin/repack.c
index a176de2f85a8a9a0f0b5443df3e8ad62daa3eb0a..239f278fac9c2be6655458992022b23117ea5020 100644 (file)
--- a/builtin/repack.c
+++ b/builtin/repack.c
@@ -94,7 +94,7 @@ static void get_non_kept_pack_filenames(struct string_list *fname_list)
 
 static void remove_redundant_pack(const char *dir_name, const char *base_name)
 {
-       const char *exts[] = {".pack", ".idx", ".keep"};
+       const char *exts[] = {".pack", ".idx", ".keep", ".bitmap"};
        int i;
        struct strbuf buf = STRBUF_INIT;
        size_t plen;
@@ -117,9 +117,11 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
 {
        struct {
                const char *name;
+               unsigned optional:1;
        } exts[] = {
                {".pack"},
                {".idx"},
+               {".bitmap", 1},
        };
        struct child_process cmd;
        struct string_list_item *item;
@@ -142,6 +144,7 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
        int no_update_server_info = 0;
        int quiet = 0;
        int local = 0;
+       int write_bitmap = -1;
 
        struct option builtin_repack_options[] = {
                OPT_BIT('a', NULL, &pack_everything,
@@ -160,6 +163,8 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
                OPT__QUIET(&quiet, N_("be quiet")),
                OPT_BOOL('l', "local", &local,
                                N_("pass --local to git-pack-objects")),
+               OPT_BOOL('b', "write-bitmap-index", &write_bitmap,
+                               N_("write bitmap index")),
                OPT_STRING(0, "unpack-unreachable", &unpack_unreachable, N_("approxidate"),
                                N_("with -A, do not loosen objects older than this")),
                OPT_INTEGER(0, "window", &window,
@@ -201,6 +206,9 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
                argv_array_pushf(&cmd_args, "--no-reuse-delta");
        if (no_reuse_object)
                argv_array_pushf(&cmd_args, "--no-reuse-object");
+       if (write_bitmap >= 0)
+               argv_array_pushf(&cmd_args, "--%swrite-bitmap-index",
+                                write_bitmap ? "" : "no-");
 
        if (pack_everything & ALL_INTO_ONE) {
                get_non_kept_pack_filenames(&existing_packs);
@@ -323,6 +331,7 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
                for (ext = 0; ext < ARRAY_SIZE(exts); ext++) {
                        char *fname, *fname_old;
                        struct stat statbuffer;
+                       int exists = 0;
                        fname = mkpathdup("%s/pack-%s%s",
                                        packdir, item->string, exts[ext].name);
                        fname_old = mkpathdup("%s-%s%s",
@@ -330,9 +339,12 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
                        if (!stat(fname_old, &statbuffer)) {
                                statbuffer.st_mode &= ~(S_IWUSR | S_IWGRP | S_IWOTH);
                                chmod(fname_old, statbuffer.st_mode);
+                               exists = 1;
+                       }
+                       if (exists || !exts[ext].optional) {
+                               if (rename(fname_old, fname))
+                                       die_errno(_("renaming '%s' failed"), fname_old);
                        }
-                       if (rename(fname_old, fname))
-                               die_errno(_("renaming '%s' failed"), fname_old);
                        free(fname);
                        free(fname_old);
                }