diff: convert get_stat_data to struct object_id

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/diff-lib.c b/diff-lib.c
index 2982bf055acb6049a8cd6007244d60d985b7e619..a3bc78162e773f817edadaf1ec5507d75e6c8ebb 100644 (file)
--- a/diff-lib.c
+++ b/diff-lib.c
@@ -264,12 +264,12 @@ static void diff_index_show_file(struct rev_info *revs,
 }
 
 static int get_stat_data(const struct cache_entry *ce,
-                        const unsigned char **sha1p,
+                        const struct object_id **oidp,
                         unsigned int *modep,
                         int cached, int match_missing,
                         unsigned *dirty_submodule, struct diff_options *diffopt)
 {
-       const unsigned char *sha1 = ce->oid.hash;
+       const struct object_id *oid = &ce->oid;
        unsigned int mode = ce->ce_mode;
 
        if (!cached && !ce_uptodate(ce)) {
@@ -280,7 +280,7 @@ static int get_stat_data(const struct cache_entry *ce,
                        return -1;
                else if (changed) {
                        if (match_missing) {
-                               *sha1p = sha1;
+                               *oidp = oid;
                                *modep = mode;
                                return 0;
                        }
@@ -290,11 +290,11 @@ static int get_stat_data(const struct cache_entry *ce,
                                                    0, dirty_submodule);
                if (changed) {
                        mode = ce_mode_from_stat(ce, st.st_mode);
-                       sha1 = null_sha1;
+                       oid = &null_oid;
                }
        }
 
-       *sha1p = sha1;
+       *oidp = oid;
        *modep = mode;
        return 0;
 }
@@ -303,7 +303,7 @@ static void show_new_file(struct rev_info *revs,
                          const struct cache_entry *new,
                          int cached, int match_missing)
 {
-       const unsigned char *sha1;
+       const struct object_id *oid;
        unsigned int mode;
        unsigned dirty_submodule = 0;
 
@@ -311,11 +311,11 @@ static void show_new_file(struct rev_info *revs,
         * New file in the index: it might actually be different in
         * the working tree.
         */
-       if (get_stat_data(new, &sha1, &mode, cached, match_missing,
+       if (get_stat_data(new, &oid, &mode, cached, match_missing,
            &dirty_submodule, &revs->diffopt) < 0)
                return;
 
-       diff_index_show_file(revs, "+", new, sha1, !is_null_sha1(sha1), mode, dirty_submodule);
+       diff_index_show_file(revs, "+", new, oid->hash, !is_null_oid(oid), mode, dirty_submodule);
 }
 
 static int show_modified(struct rev_info *revs,
@@ -325,10 +325,10 @@ static int show_modified(struct rev_info *revs,
                         int cached, int match_missing)
 {
        unsigned int mode, oldmode;
-       const unsigned char *sha1;
+       const struct object_id *oid;
        unsigned dirty_submodule = 0;
 
-       if (get_stat_data(new, &sha1, &mode, cached, match_missing,
+       if (get_stat_data(new, &oid, &mode, cached, match_missing,
                          &dirty_submodule, &revs->diffopt) < 0) {
                if (report_missing)
                        diff_index_show_file(revs, "-", old,
@@ -338,7 +338,7 @@ static int show_modified(struct rev_info *revs,
        }
 
        if (revs->combine_merges && !cached &&
-           (hashcmp(sha1, old->oid.hash) || oidcmp(&old->oid, &new->oid))) {
+           (oidcmp(oid, &old->oid) || oidcmp(&old->oid, &new->oid))) {
                struct combine_diff_path *p;
                int pathlen = ce_namelen(new);
 
@@ -362,12 +362,12 @@ static int show_modified(struct rev_info *revs,
        }
 
        oldmode = old->ce_mode;
-       if (mode == oldmode && !hashcmp(sha1, old->oid.hash) && !dirty_submodule &&
+       if (mode == oldmode && !oidcmp(oid, &old->oid) && !dirty_submodule &&
            !DIFF_OPT_TST(&revs->diffopt, FIND_COPIES_HARDER))
                return 0;
 
        diff_change(&revs->diffopt, oldmode, mode,
-                   old->oid.hash, sha1, 1, !is_null_sha1(sha1),
+                   old->oid.hash, oid->hash, 1, !is_null_oid(oid),
                    old->name, 0, dirty_submodule);
        return 0;
 }