path: root/log-tree.c
diff options
authorRafael Ascensão <>2017-11-21 21:33:41 (GMT)
committerJunio C Hamano <>2017-11-22 04:18:59 (GMT)
commit65516f586b69307f977cd67cc45513a296cabc25 (patch)
tree54e9ba622b5eed2266fe459b09234e84794165e2 /log-tree.c
parent14c63a9dc093d6738454f6369a4f5663ca732cf7 (diff)
log: add option to choose which refs to decorate
When `log --decorate` is used, git will decorate commits with all available refs. While in most cases this may give the desired effect, under some conditions it can lead to excessively verbose output. Introduce two command line options, `--decorate-refs=<pattern>` and `--decorate-refs-exclude=<pattern>` to allow the user to select which refs are used in decoration. When "--decorate-refs=<pattern>" is given, only the refs that match the pattern are used in decoration. The refs that match the pattern when "--decorate-refs-exclude=<pattern>" is given, are never used in decoration. These options follow the same convention for mixing negative and positive patterns across the system, assuming that the inclusive default is to match all refs available. (1) if there is no positive pattern given, pretend as if an inclusive default positive pattern was given; (2) for each candidate, reject it if it matches no positive pattern, or if it matches any one of the negative patterns. The rules for what is considered a match are slightly different from the rules used elsewhere. Commands like `log --glob` assume a trailing '/*' when glob chars are not present in the pattern. This makes it difficult to specify a single ref. On the other hand, commands like `describe --match --all` allow specifying exact refs, but do not have the convenience of allowing "shorthand refs" like 'refs/heads' or 'heads' to refer to 'refs/heads/*'. The commands introduced in this patch consider a match if: (a) the pattern contains globs chars, and regular pattern matching returns a match. (b) the pattern does not contain glob chars, and ref '<pattern>' exists, or if ref exists under '<pattern>/' This allows both behaviours (allowing single refs and shorthand refs) yet remaining compatible with existent commands. Helped-by: Kevin Daudt <> Helped-by: Junio C Hamano <> Signed-off-by: Rafael Ascensão <> Signed-off-by: Junio C Hamano <>
Diffstat (limited to 'log-tree.c')
1 files changed, 18 insertions, 6 deletions
diff --git a/log-tree.c b/log-tree.c
index 3b904f0..fca29d4 100644
--- a/log-tree.c
+++ b/log-tree.c
@@ -94,8 +94,12 @@ static int add_ref_decoration(const char *refname, const struct object_id *oid,
struct object *obj;
enum decoration_type type = DECORATION_NONE;
+ struct decoration_filter *filter = (struct decoration_filter *)cb_data;
- assert(cb_data == NULL);
+ if (filter && !ref_filter_match(refname,
+ filter->include_ref_pattern,
+ filter->exclude_ref_pattern))
+ return 0;
if (starts_with(refname, git_replace_ref_base)) {
struct object_id original_oid;
@@ -148,15 +152,23 @@ static int add_graft_decoration(const struct commit_graft *graft, void *cb_data)
return 0;
-void load_ref_decorations(int flags)
+void load_ref_decorations(struct decoration_filter *filter, int flags)
if (!decoration_loaded) {
+ if (filter) {
+ struct string_list_item *item;
+ for_each_string_list_item(item, filter->exclude_ref_pattern) {
+ normalize_glob_ref(item, NULL, item->string);
+ }
+ for_each_string_list_item(item, filter->include_ref_pattern) {
+ normalize_glob_ref(item, NULL, item->string);
+ }
+ }
decoration_loaded = 1;
decoration_flags = flags;
- for_each_ref(add_ref_decoration, NULL);
- head_ref(add_ref_decoration, NULL);
- for_each_commit_graft(add_graft_decoration, NULL);
+ for_each_ref(add_ref_decoration, filter);
+ head_ref(add_ref_decoration, filter);
+ for_each_commit_graft(add_graft_decoration, filter);