glossary: more precise definition of tree-ish (a.k.a. treeish)

diff --git a/diff-lib.c b/diff-lib.c
index f35de0ffa0ec263acae7ac6211e3c2817987f760..b6f4b21637fe66a614a0dd6581f90fc12e80a6f8 100644 (file)
--- a/diff-lib.c
+++ b/diff-lib.c
@@ -64,8 +64,9 @@ static int check_removed(const struct cache_entry *ce, struct stat *st)
  * commits, untracked content and/or modified content).
  */
 static int match_stat_with_submodule(struct diff_options *diffopt,
-                                     struct cache_entry *ce, struct stat *st,
-                                     unsigned ce_option, unsigned *dirty_submodule)
+                                    const struct cache_entry *ce,
+                                    struct stat *st, unsigned ce_option,
+                                    unsigned *dirty_submodule)
 {
        int changed = ce_match_stat(ce, st, ce_option);
        if (S_ISGITLINK(ce->ce_mode)) {
@@ -237,7 +238,7 @@ int run_diff_files(struct rev_info *revs, unsigned int option)
 /* A file entry went away or appeared */
 static void diff_index_show_file(struct rev_info *revs,
                                 const char *prefix,
-                                struct cache_entry *ce,
+                                const struct cache_entry *ce,
                                 const unsigned char *sha1, int sha1_valid,
                                 unsigned int mode,
                                 unsigned dirty_submodule)
@@ -246,7 +247,7 @@ static void diff_index_show_file(struct rev_info *revs,
                       sha1, sha1_valid, ce->name, dirty_submodule);
 }
 
-static int get_stat_data(struct cache_entry *ce,
+static int get_stat_data(const struct cache_entry *ce,
                         const unsigned char **sha1p,
                         unsigned int *modep,
                         int cached, int match_missing,
@@ -283,7 +284,7 @@ static int get_stat_data(struct cache_entry *ce,
 }
 
 static void show_new_file(struct rev_info *revs,
-                         struct cache_entry *new,
+                         const struct cache_entry *new,
                          int cached, int match_missing)
 {
        const unsigned char *sha1;
@@ -302,8 +303,8 @@ static void show_new_file(struct rev_info *revs,
 }
 
 static int show_modified(struct rev_info *revs,
-                        struct cache_entry *old,
-                        struct cache_entry *new,
+                        const struct cache_entry *old,
+                        const struct cache_entry *new,
                         int report_missing,
                         int cached, int match_missing)
 {
@@ -362,8 +363,8 @@ static int show_modified(struct rev_info *revs,
  * give you the position and number of entries in the index).
  */
 static void do_oneway_diff(struct unpack_trees_options *o,
-       struct cache_entry *idx,
-       struct cache_entry *tree)
+                          const struct cache_entry *idx,
+                          const struct cache_entry *tree)
 {
        struct rev_info *revs = o->unpack_data;
        int match_missing, cached;
@@ -423,10 +424,11 @@ static void do_oneway_diff(struct unpack_trees_options *o,
  * the fairly complex unpack_trees() semantic requirements, including
  * the skipping, the path matching, the type conflict cases etc.
  */
-static int oneway_diff(struct cache_entry **src, struct unpack_trees_options *o)
+static int oneway_diff(const struct cache_entry * const *src,
+                      struct unpack_trees_options *o)
 {
-       struct cache_entry *idx = src[0];
-       struct cache_entry *tree = src[1];
+       const struct cache_entry *idx = src[0];
+       const struct cache_entry *tree = src[1];
        struct rev_info *revs = o->unpack_data;
 
        /*