From 35257aa01203bae74f9fb856fb02c10c4b3836e6 Mon Sep 17 00:00:00 2001 From: Karthik Nayak Date: Tue, 7 Jul 2015 21:36:12 +0530 Subject: [PATCH] ref-filter: implement '--merged' and '--no-merged' options In 'branch -l' we have '--merged' option which only lists refs (branches) merged into the named commit and '--no-merged' option which only lists refs (branches) not merged into the named commit. Implement these two options in ref-filter.{c,h} so that other commands can benefit from this. Based-on-patch-by: Jeff King Mentored-by: Christian Couder Mentored-by: Matthieu Moy Signed-off-by: Karthik Nayak Signed-off-by: Junio C Hamano --- builtin/branch.c | 4 +++ ref-filter.c | 73 +++++++++++++++++++++++++++++++++++++++++++++--- ref-filter.h | 8 ++++++ 3 files changed, 81 insertions(+), 4 deletions(-) diff --git a/builtin/branch.c b/builtin/branch.c index ddd90e6b1c..e63102e47b 100644 --- a/builtin/branch.c +++ b/builtin/branch.c @@ -635,6 +635,10 @@ static int print_ref_list(int kinds, int detached, int verbose, int abbrev, stru cb.pattern = pattern; cb.ret = 0; for_each_rawref(append_ref, &cb); + /* + * The following implementation is currently duplicated in ref-filter. It + * will eventually be removed when we port branch.c to use ref-filter APIs. + */ if (merge_filter != NO_FILTER) { struct commit *filter; filter = lookup_commit_reference_gently(merge_filter_ref, 0); diff --git a/ref-filter.c b/ref-filter.c index 4fe5a7a1f2..0d7ec446dc 100644 --- a/ref-filter.c +++ b/ref-filter.c @@ -9,6 +9,7 @@ #include "tag.h" #include "quote.h" #include "ref-filter.h" +#include "revision.h" typedef enum { FIELD_STR, FIELD_ULONG, FIELD_TIME } cmp_type; @@ -898,6 +899,7 @@ static int ref_filter_handler(const char *refname, const struct object_id *oid, struct ref_filter_cbdata *ref_cbdata = cb_data; struct ref_filter *filter = ref_cbdata->filter; struct ref_array_item *ref; + struct commit *commit = NULL; if (flag & REF_BAD_NAME) { warning("ignoring ref with broken name %s", refname); @@ -910,12 +912,24 @@ static int ref_filter_handler(const char *refname, const struct object_id *oid, if (filter->points_at.nr && !match_points_at(&filter->points_at, oid->hash, refname)) return 0; + /* + * A merge filter is applied on refs pointing to commits. Hence + * obtain the commit using the 'oid' available and discard all + * non-commits early. The actual filtering is done later. + */ + if (filter->merge_commit) { + commit = lookup_commit_reference_gently(oid->hash, 1); + if (!commit) + return 0; + } + /* * We do not open the object yet; sort may only need refname * to do its job and the resulting list may yet to be pruned * by maxcount logic. */ ref = new_ref_array_item(refname, oid->hash, flag); + ref->commit = commit; REALLOC_ARRAY(ref_cbdata->array->items, ref_cbdata->array->nr + 1); ref_cbdata->array->items[ref_cbdata->array->nr++] = ref; @@ -941,6 +955,50 @@ void ref_array_clear(struct ref_array *array) array->nr = array->alloc = 0; } +static void do_merge_filter(struct ref_filter_cbdata *ref_cbdata) +{ + struct rev_info revs; + int i, old_nr; + struct ref_filter *filter = ref_cbdata->filter; + struct ref_array *array = ref_cbdata->array; + struct commit **to_clear = xcalloc(sizeof(struct commit *), array->nr); + + init_revisions(&revs, NULL); + + for (i = 0; i < array->nr; i++) { + struct ref_array_item *item = array->items[i]; + add_pending_object(&revs, &item->commit->object, item->refname); + to_clear[i] = item->commit; + } + + filter->merge_commit->object.flags |= UNINTERESTING; + add_pending_object(&revs, &filter->merge_commit->object, ""); + + revs.limited = 1; + if (prepare_revision_walk(&revs)) + die(_("revision walk setup failed")); + + old_nr = array->nr; + array->nr = 0; + + for (i = 0; i < old_nr; i++) { + struct ref_array_item *item = array->items[i]; + struct commit *commit = item->commit; + + int is_merged = !!(commit->object.flags & UNINTERESTING); + + if (is_merged == (filter->merge == REF_FILTER_MERGED_INCLUDE)) + array->items[array->nr++] = array->items[i]; + else + free_array_item(item); + } + + for (i = 0; i < old_nr; i++) + clear_commit_marks(to_clear[i], ALL_REV_FLAGS); + clear_commit_marks(filter->merge_commit, ALL_REV_FLAGS); + free(to_clear); +} + /* * API for filtering a set of refs. Based on the type of refs the user * has requested, we iterate through those refs and apply filters @@ -950,17 +1008,24 @@ void ref_array_clear(struct ref_array *array) int filter_refs(struct ref_array *array, struct ref_filter *filter, unsigned int type) { struct ref_filter_cbdata ref_cbdata; + int ret = 0; ref_cbdata.array = array; ref_cbdata.filter = filter; + /* Simple per-ref filtering */ if (type & (FILTER_REFS_ALL | FILTER_REFS_INCLUDE_BROKEN)) - return for_each_rawref(ref_filter_handler, &ref_cbdata); + ret = for_each_rawref(ref_filter_handler, &ref_cbdata); else if (type & FILTER_REFS_ALL) - return for_each_ref(ref_filter_handler, &ref_cbdata); - else + ret = for_each_ref(ref_filter_handler, &ref_cbdata); + else if (type) die("filter_refs: invalid type"); - return 0; + + /* Filters that need revision walking */ + if (filter->merge_commit) + do_merge_filter(&ref_cbdata); + + return ret; } static int cmp_ref_sorting(struct ref_sorting *s, struct ref_array_item *a, struct ref_array_item *b) diff --git a/ref-filter.h b/ref-filter.h index 443cfa7179..f1151749a8 100644 --- a/ref-filter.h +++ b/ref-filter.h @@ -31,6 +31,7 @@ struct ref_array_item { unsigned char objectname[20]; int flag; const char *symref; + struct commit *commit; struct atom_value *value; char refname[FLEX_ARRAY]; }; @@ -43,6 +44,13 @@ struct ref_array { struct ref_filter { const char **name_patterns; struct sha1_array points_at; + + enum { + REF_FILTER_MERGED_NONE = 0, + REF_FILTER_MERGED_INCLUDE, + REF_FILTER_MERGED_OMIT + } merge; + struct commit *merge_commit; }; struct ref_filter_cbdata {