Sync with maint
[gitweb.git] / builtin / diff.c
index 8c03ddaf589bbdce723b00a9d911673b064bd13e..0c8f86e40da6537d57f5ed6ca0ecdd005e29c8f5 100644 (file)
 #define DIFF_NO_INDEX_EXPLICIT 1
 #define DIFF_NO_INDEX_IMPLICIT 2
 
-struct blobinfo {
-       struct object_id oid;
-       const char *name;
-       unsigned mode;
-};
-
 static const char builtin_diff_usage[] =
 "git diff [<options>] [<commit> [<commit>]] [--] [<path>...]";
 
+static const char *blob_path(struct object_array_entry *entry)
+{
+       return entry->path ? entry->path : entry->name;
+}
+
 static void stuff_change(struct diff_options *opt,
                         unsigned old_mode, unsigned new_mode,
                         const struct object_id *old_oid,
                         const struct object_id *new_oid,
                         int old_oid_valid,
                         int new_oid_valid,
-                        const char *old_name,
-                        const char *new_name)
+                        const char *old_path,
+                        const char *new_path)
 {
        struct diff_filespec *one, *two;
 
@@ -47,16 +46,16 @@ static void stuff_change(struct diff_options *opt,
        if (DIFF_OPT_TST(opt, REVERSE_DIFF)) {
                SWAP(old_mode, new_mode);
                SWAP(old_oid, new_oid);
-               SWAP(old_name, new_name);
+               SWAP(old_path, new_path);
        }
 
        if (opt->prefix &&
-           (strncmp(old_name, opt->prefix, opt->prefix_length) ||
-            strncmp(new_name, opt->prefix, opt->prefix_length)))
+           (strncmp(old_path, opt->prefix, opt->prefix_length) ||
+            strncmp(new_path, opt->prefix, opt->prefix_length)))
                return;
 
-       one = alloc_filespec(old_name);
-       two = alloc_filespec(new_name);
+       one = alloc_filespec(old_path);
+       two = alloc_filespec(new_path);
        fill_filespec(one, old_oid->hash, old_oid_valid, old_mode);
        fill_filespec(two, new_oid->hash, new_oid_valid, new_mode);
 
@@ -65,7 +64,7 @@ static void stuff_change(struct diff_options *opt,
 
 static int builtin_diff_b_f(struct rev_info *revs,
                            int argc, const char **argv,
-                           struct blobinfo *blob)
+                           struct object_array_entry **blob)
 {
        /* Blob vs file in the working tree*/
        struct stat st;
@@ -84,14 +83,15 @@ static int builtin_diff_b_f(struct rev_info *revs,
 
        diff_set_mnemonic_prefix(&revs->diffopt, "o/", "w/");
 
-       if (blob[0].mode == S_IFINVALID)
-               blob[0].mode = canon_mode(st.st_mode);
+       if (blob[0]->mode == S_IFINVALID)
+               blob[0]->mode = canon_mode(st.st_mode);
 
        stuff_change(&revs->diffopt,
-                    blob[0].mode, canon_mode(st.st_mode),
-                    &blob[0].oid, &null_oid,
+                    blob[0]->mode, canon_mode(st.st_mode),
+                    &blob[0]->item->oid, &null_oid,
                     1, 0,
-                    path, path);
+                    blob[0]->path ? blob[0]->path : path,
+                    path);
        diffcore_std(&revs->diffopt);
        diff_flush(&revs->diffopt);
        return 0;
@@ -99,24 +99,24 @@ static int builtin_diff_b_f(struct rev_info *revs,
 
 static int builtin_diff_blobs(struct rev_info *revs,
                              int argc, const char **argv,
-                             struct blobinfo *blob)
+                             struct object_array_entry **blob)
 {
        unsigned mode = canon_mode(S_IFREG | 0644);
 
        if (argc > 1)
                usage(builtin_diff_usage);
 
-       if (blob[0].mode == S_IFINVALID)
-               blob[0].mode = mode;
+       if (blob[0]->mode == S_IFINVALID)
+               blob[0]->mode = mode;
 
-       if (blob[1].mode == S_IFINVALID)
-               blob[1].mode = mode;
+       if (blob[1]->mode == S_IFINVALID)
+               blob[1]->mode = mode;
 
        stuff_change(&revs->diffopt,
-                    blob[0].mode, blob[1].mode,
-                    &blob[0].oid, &blob[1].oid,
+                    blob[0]->mode, blob[1]->mode,
+                    &blob[0]->item->oid, &blob[1]->item->oid,
                     1, 1,
-                    blob[0].name, blob[1].name);
+                    blob_path(blob[0]), blob_path(blob[1]));
        diffcore_std(&revs->diffopt);
        diff_flush(&revs->diffopt);
        return 0;
@@ -259,7 +259,7 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
        struct rev_info rev;
        struct object_array ent = OBJECT_ARRAY_INIT;
        int blobs = 0, paths = 0;
-       struct blobinfo blob[2];
+       struct object_array_entry *blob[2];
        int nongit = 0, no_index = 0;
        int result = 0;
 
@@ -408,9 +408,7 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
                } else if (obj->type == OBJ_BLOB) {
                        if (2 <= blobs)
                                die(_("more than two blobs given: '%s'"), name);
-                       oidcpy(&blob[blobs].oid, &obj->oid);
-                       blob[blobs].name = name;
-                       blob[blobs].mode = entry->mode;
+                       blob[blobs] = entry;
                        blobs++;
 
                } else {