1 files changed, 149 insertions, 94 deletions

diff --git a/ref-filter.c b/ref-filter.c
index f2b078db11..5550a0d34c 100644
--- a/ref-filter.c
+++ b/ref-filter.c
@@ -22,7 +22,7 @@
 #include "commit-reach.h"
 #include "worktree.h"
 #include "hashmap.h"
-#include "argv-array.h"
+#include "strvec.h"
 
 static struct ref_msg {
 	const char *gone;
@@ -127,8 +127,8 @@ static struct used_atom {
 			unsigned int nobracket : 1, push : 1, push_remote : 1;
 		} remote_ref;
 		struct {
-			enum { C_BARE, C_BODY, C_BODY_DEP, C_LENGTH,
-			       C_LINES, C_SIG, C_SUB, C_TRAILERS } option;
+			enum { C_BARE, C_BODY, C_BODY_DEP, C_LENGTH, C_LINES,
+			       C_SIG, C_SUB, C_SUB_SANITIZE, C_TRAILERS } option;
 			struct process_trailer_options trailer_opts;
 			unsigned int nlines;
 		} contents;
@@ -139,7 +139,10 @@ static struct used_atom {
 		struct {
 			enum { O_FULL, O_LENGTH, O_SHORT } option;
 			unsigned int length;
-		} objectname;
+		} oid;
+		struct email_option {
+			enum { EO_RAW, EO_TRIM, EO_LOCALPART } option;
+		} email_option;
 		struct refname_atom refname;
 		char *head;
 	} u;
@@ -298,9 +301,12 @@ static int body_atom_parser(const struct ref_format *format, struct used_atom *a
 static int subject_atom_parser(const struct ref_format *format, struct used_atom *atom,
 			       const char *arg, struct strbuf *err)
 {
-	if (arg)
-		return strbuf_addf_ret(err, -1, _("%%(subject) does not take arguments"));
-	atom->u.contents.option = C_SUB;
+	if (!arg)
+		atom->u.contents.option = C_SUB;
+	else if (!strcmp(arg, "sanitize"))
+		atom->u.contents.option = C_SUB_SANITIZE;
+	else
+		return strbuf_addf_ret(err, -1, _("unrecognized %%(subject) argument: %s"), arg);
 	return 0;
 }
 
@@ -345,9 +351,11 @@ static int contents_atom_parser(const struct ref_format *format, struct used_ato
 		atom->u.contents.option = C_SIG;
 	else if (!strcmp(arg, "subject"))
 		atom->u.contents.option = C_SUB;
-	else if (skip_prefix(arg, "trailers", &arg)) {
-		skip_prefix(arg, ":", &arg);
-		if (trailers_atom_parser(format, atom, *arg ? arg : NULL, err))
+	else if (!strcmp(arg, "trailers")) {
+		if (trailers_atom_parser(format, atom, NULL, err))
+			return -1;
+	} else if (skip_prefix(arg, "trailers:", &arg)) {
+		if (trailers_atom_parser(format, atom, arg, err))
 			return -1;
 	} else if (skip_prefix(arg, "lines=", &arg)) {
 		atom->u.contents.option = C_LINES;
@@ -358,22 +366,36 @@ static int contents_atom_parser(const struct ref_format *format, struct used_ato
 	return 0;
 }
 
-static int objectname_atom_parser(const struct ref_format *format, struct used_atom *atom,
-				  const char *arg, struct strbuf *err)
+static int oid_atom_parser(const struct ref_format *format, struct used_atom *atom,
+			   const char *arg, struct strbuf *err)
 {
 	if (!arg)
-		atom->u.objectname.option = O_FULL;
+		atom->u.oid.option = O_FULL;
 	else if (!strcmp(arg, "short"))
-		atom->u.objectname.option = O_SHORT;
+		atom->u.oid.option = O_SHORT;
 	else if (skip_prefix(arg, "short=", &arg)) {
-		atom->u.objectname.option = O_LENGTH;
-		if (strtoul_ui(arg, 10, &atom->u.objectname.length) ||
-		    atom->u.objectname.length == 0)
-			return strbuf_addf_ret(err, -1, _("positive value expected objectname:short=%s"), arg);
-		if (atom->u.objectname.length < MINIMUM_ABBREV)
-			atom->u.objectname.length = MINIMUM_ABBREV;
+		atom->u.oid.option = O_LENGTH;
+		if (strtoul_ui(arg, 10, &atom->u.oid.length) ||
+		    atom->u.oid.length == 0)
+			return strbuf_addf_ret(err, -1, _("positive value expected '%s' in %%(%s)"), arg, atom->name);
+		if (atom->u.oid.length < MINIMUM_ABBREV)
+			atom->u.oid.length = MINIMUM_ABBREV;
 	} else
-		return strbuf_addf_ret(err, -1, _("unrecognized %%(objectname) argument: %s"), arg);
+		return strbuf_addf_ret(err, -1, _("unrecognized argument '%s' in %%(%s)"), arg, atom->name);
+	return 0;
+}
+
+static int person_email_atom_parser(const struct ref_format *format, struct used_atom *atom,
+				    const char *arg, struct strbuf *err)
+{
+	if (!arg)
+		atom->u.email_option.option = EO_RAW;
+	else if (!strcmp(arg, "trim"))
+		atom->u.email_option.option = EO_TRIM;
+	else if (!strcmp(arg, "localpart"))
+		atom->u.email_option.option = EO_LOCALPART;
+	else
+		return strbuf_addf_ret(err, -1, _("unrecognized email option: %s"), arg);
 	return 0;
 }
 
@@ -478,25 +500,25 @@ static struct {
 	{ "refname", SOURCE_NONE, FIELD_STR, refname_atom_parser },
 	{ "objecttype", SOURCE_OTHER, FIELD_STR, objecttype_atom_parser },
 	{ "objectsize", SOURCE_OTHER, FIELD_ULONG, objectsize_atom_parser },
-	{ "objectname", SOURCE_OTHER, FIELD_STR, objectname_atom_parser },
+	{ "objectname", SOURCE_OTHER, FIELD_STR, oid_atom_parser },
 	{ "deltabase", SOURCE_OTHER, FIELD_STR, deltabase_atom_parser },
-	{ "tree", SOURCE_OBJ },
-	{ "parent", SOURCE_OBJ },
+	{ "tree", SOURCE_OBJ, FIELD_STR, oid_atom_parser },
+	{ "parent", SOURCE_OBJ, FIELD_STR, oid_atom_parser },
 	{ "numparent", SOURCE_OBJ, FIELD_ULONG },
 	{ "object", SOURCE_OBJ },
 	{ "type", SOURCE_OBJ },
 	{ "tag", SOURCE_OBJ },
 	{ "author", SOURCE_OBJ },
 	{ "authorname", SOURCE_OBJ },
-	{ "authoremail", SOURCE_OBJ },
+	{ "authoremail", SOURCE_OBJ, FIELD_STR, person_email_atom_parser },
 	{ "authordate", SOURCE_OBJ, FIELD_TIME },
 	{ "committer", SOURCE_OBJ },
 	{ "committername", SOURCE_OBJ },
-	{ "committeremail", SOURCE_OBJ },
+	{ "committeremail", SOURCE_OBJ, FIELD_STR, person_email_atom_parser },
 	{ "committerdate", SOURCE_OBJ, FIELD_TIME },
 	{ "tagger", SOURCE_OBJ },
 	{ "taggername", SOURCE_OBJ },
-	{ "taggeremail", SOURCE_OBJ },
+	{ "taggeremail", SOURCE_OBJ, FIELD_STR, person_email_atom_parser },
 	{ "taggerdate", SOURCE_OBJ, FIELD_TIME },
 	{ "creator", SOURCE_OBJ },
 	{ "creatordate", SOURCE_OBJ, FIELD_TIME },
@@ -901,21 +923,27 @@ int verify_ref_format(struct ref_format *format)
 	return 0;
 }
 
-static int grab_objectname(const char *name, const struct object_id *oid,
-			   struct atom_value *v, struct used_atom *atom)
+static const char *do_grab_oid(const char *field, const struct object_id *oid,
+			       struct used_atom *atom)
 {
-	if (starts_with(name, "objectname")) {
-		if (atom->u.objectname.option == O_SHORT) {
-			v->s = xstrdup(find_unique_abbrev(oid, DEFAULT_ABBREV));
-			return 1;
-		} else if (atom->u.objectname.option == O_FULL) {
-			v->s = xstrdup(oid_to_hex(oid));
-			return 1;
-		} else if (atom->u.objectname.option == O_LENGTH) {
-			v->s = xstrdup(find_unique_abbrev(oid, atom->u.objectname.length));
-			return 1;
-		} else
-			BUG("unknown %%(objectname) option");
+	switch (atom->u.oid.option) {
+	case O_FULL:
+		return oid_to_hex(oid);
+	case O_LENGTH:
+		return find_unique_abbrev(oid, atom->u.oid.length);
+	case O_SHORT:
+		return find_unique_abbrev(oid, DEFAULT_ABBREV);
+	default:
+		BUG("unknown %%(%s) option", field);
+	}
+}
+
+static int grab_oid(const char *name, const char *field, const struct object_id *oid,
+		    struct atom_value *v, struct used_atom *atom)
+{
+	if (starts_with(name, field)) {
+		v->s = xstrdup(do_grab_oid(field, oid, atom));
+		return 1;
 	}
 	return 0;
 }
@@ -943,7 +971,7 @@ static void grab_common_values(struct atom_value *val, int deref, struct expand_
 		} else if (!strcmp(name, "deltabase"))
 			v->s = xstrdup(oid_to_hex(&oi->delta_base_oid));
 		else if (deref)
-			grab_objectname(name, &oi->oid, v, &used_atom[i]);
+			grab_oid(name, "objectname", &oi->oid, v, &used_atom[i]);
 	}
 }
 
@@ -982,21 +1010,20 @@ static void grab_commit_values(struct atom_value *val, int deref, struct object
 			continue;
 		if (deref)
 			name++;
-		if (!strcmp(name, "tree")) {
-			v->s = xstrdup(oid_to_hex(get_commit_tree_oid(commit)));
-		}
-		else if (!strcmp(name, "numparent")) {
+		if (grab_oid(name, "tree", get_commit_tree_oid(commit), v, &used_atom[i]))
+			continue;
+		if (!strcmp(name, "numparent")) {
 			v->value = commit_list_count(commit->parents);
 			v->s = xstrfmt("%lu", (unsigned long)v->value);
 		}
-		else if (!strcmp(name, "parent")) {
+		else if (starts_with(name, "parent")) {
 			struct commit_list *parents;
 			struct strbuf s = STRBUF_INIT;
 			for (parents = commit->parents; parents; parents = parents->next) {
-				struct commit *parent = parents->item;
+				struct object_id *oid = &parents->item->object.oid;
 				if (parents != commit->parents)
 					strbuf_addch(&s, ' ');
-				strbuf_addstr(&s, oid_to_hex(&parent->object.oid));
+				strbuf_addstr(&s, do_grab_oid("parent", oid, &used_atom[i]));
 			}
 			v->s = strbuf_detach(&s, NULL);
 		}
@@ -1037,16 +1064,35 @@ static const char *copy_name(const char *buf)
 	return xstrdup("");
 }
 
-static const char *copy_email(const char *buf)
+static const char *copy_email(const char *buf, struct used_atom *atom)
 {
 	const char *email = strchr(buf, '<');
 	const char *eoemail;
 	if (!email)
 		return xstrdup("");
-	eoemail = strchr(email, '>');
+	switch (atom->u.email_option.option) {
+	case EO_RAW:
+		eoemail = strchr(email, '>');
+		if (eoemail)
+			eoemail++;
+		break;
+	case EO_TRIM:
+		email++;
+		eoemail = strchr(email, '>');
+		break;
+	case EO_LOCALPART:
+		email++;
+		eoemail = strchr(email, '@');
+		if (!eoemail)
+			eoemail = strchr(email, '>');
+		break;
+	default:
+		BUG("unknown email option");
+	}
+
 	if (!eoemail)
 		return xstrdup("");
-	return xmemdupz(email, eoemail + 1 - email);
+	return xmemdupz(email, eoemail - email);
 }
 
 static char *copy_subject(const char *buf, unsigned long len)
@@ -1116,7 +1162,7 @@ static void grab_person(const char *who, struct atom_value *val, int deref, void
 			continue;
 		if (name[wholen] != 0 &&
 		    strcmp(name + wholen, "name") &&
-		    strcmp(name + wholen, "email") &&
+		    !starts_with(name + wholen, "email") &&
 		    !starts_with(name + wholen, "date"))
 			continue;
 		if (!wholine)
@@ -1127,8 +1173,8 @@ static void grab_person(const char *who, struct atom_value *val, int deref, void
 			v->s = copy_line(wholine);
 		else if (!strcmp(name + wholen, "name"))
 			v->s = copy_name(wholine);
-		else if (!strcmp(name + wholen, "email"))
-			v->s = copy_email(wholine);
+		else if (starts_with(name + wholen, "email"))
+			v->s = copy_email(wholine, &used_atom[i]);
 		else if (starts_with(name + wholen, "date"))
 			grab_date(wholine, v, name);
 	}
@@ -1241,8 +1287,8 @@ static void grab_sub_body_contents(struct atom_value *val, int deref, void *buf)
 			continue;
 		if (deref)
 			name++;
-		if (strcmp(name, "subject") &&
-		    strcmp(name, "body") &&
+		if (strcmp(name, "body") &&
+		    !starts_with(name, "subject") &&
 		    !starts_with(name, "trailers") &&
 		    !starts_with(name, "contents"))
 			continue;
@@ -1254,7 +1300,11 @@ static void grab_sub_body_contents(struct atom_value *val, int deref, void *buf)
 
 		if (atom->u.contents.option == C_SUB)
 			v->s = copy_subject(subpos, sublen);
-		else if (atom->u.contents.option == C_BODY_DEP)
+		else if (atom->u.contents.option == C_SUB_SANITIZE) {
+			struct strbuf sb = STRBUF_INIT;
+			format_sanitized_subject(&sb, subpos, sublen);
+			v->s = strbuf_detach(&sb, NULL);
+		} else if (atom->u.contents.option == C_BODY_DEP)
 			v->s = xmemdupz(bodypos, bodylen);
 		else if (atom->u.contents.option == C_LENGTH)
 			v->s = xstrfmt("%"PRIuMAX, (uintmax_t)strlen(subpos));
@@ -1704,7 +1754,7 @@ static int populate_value(struct ref_array_item *ref, struct strbuf *err)
 				v->s = xstrdup(buf + 1);
 			}
 			continue;
-		} else if (!deref && grab_objectname(name, &ref->objectname, v, atom)) {
+		} else if (!deref && grab_oid(name, "objectname", &ref->objectname, v, atom)) {
 			continue;
 		} else if (!strcmp(name, "HEAD")) {
 			if (atom->u.head && !strcmp(ref->refname, atom->u.head))
@@ -1919,15 +1969,15 @@ static void find_longest_prefixes_1(struct string_list *out,
 static void find_longest_prefixes(struct string_list *out,
 				  const char **patterns)
 {
-	struct argv_array sorted = ARGV_ARRAY_INIT;
+	struct strvec sorted = STRVEC_INIT;
 	struct strbuf prefix = STRBUF_INIT;
 
-	argv_array_pushv(&sorted, patterns);
-	QSORT(sorted.argv, sorted.argc, qsort_strcmp);
+	strvec_pushv(&sorted, patterns);
+	QSORT(sorted.v, sorted.nr, qsort_strcmp);
 
-	find_longest_prefixes_1(out, &prefix, sorted.argv, sorted.argc);
+	find_longest_prefixes_1(out, &prefix, sorted.v, sorted.nr);
 
-	argv_array_clear(&sorted);
+	strvec_clear(&sorted);
 	strbuf_release(&prefix);
 }
 
@@ -2117,9 +2167,9 @@ static int ref_filter_handler(const char *refname, const struct object_id *oid,
 	 * obtain the commit using the 'oid' available and discard all
 	 * non-commits early. The actual filtering is done later.
 	 */
-	if (filter->merge_commit || filter->with_commit || filter->no_commit || filter->verbose) {
-		commit = lookup_commit_reference_gently(the_repository, oid,
-							1);
+	if (filter->reachable_from || filter->unreachable_from ||
+	    filter->with_commit || filter->no_commit || filter->verbose) {
+		commit = lookup_commit_reference_gently(the_repository, oid, 1);
 		if (!commit)
 			return 0;
 		/* We perform the filtering for the '--contains' option... */
@@ -2181,13 +2231,19 @@ void ref_array_clear(struct ref_array *array)
 	}
 }
 
-static void do_merge_filter(struct ref_filter_cbdata *ref_cbdata)
+#define EXCLUDE_REACHED 0
+#define INCLUDE_REACHED 1
+static void reach_filter(struct ref_array *array,
+			 struct commit_list *check_reachable,
+			 int include_reached)
 {
 	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);
+	struct commit_list *cr;
+
+	if (!check_reachable)
+		return;
 
 	repo_init_revisions(the_repository, &revs, NULL);
 
@@ -2197,8 +2253,11 @@ static void do_merge_filter(struct ref_filter_cbdata *ref_cbdata)
 		to_clear[i] = item->commit;
 	}
 
-	filter->merge_commit->object.flags |= UNINTERESTING;
-	add_pending_object(&revs, &filter->merge_commit->object, "");
+	for (cr = check_reachable; cr; cr = cr->next) {
+		struct commit *merge_commit = cr->item;
+		merge_commit->object.flags |= UNINTERESTING;
+		add_pending_object(&revs, &merge_commit->object, "");
+	}
 
 	revs.limited = 1;
 	if (prepare_revision_walk(&revs))
@@ -2213,14 +2272,19 @@ static void do_merge_filter(struct ref_filter_cbdata *ref_cbdata)
 
 		int is_merged = !!(commit->object.flags & UNINTERESTING);
 
-		if (is_merged == (filter->merge == REF_FILTER_MERGED_INCLUDE))
+		if (is_merged == include_reached)
 			array->items[array->nr++] = array->items[i];
 		else
 			free_array_item(item);
 	}
 
 	clear_commit_marks_many(old_nr, to_clear, ALL_REV_FLAGS);
-	clear_commit_marks(filter->merge_commit, ALL_REV_FLAGS);
+
+	while (check_reachable) {
+		struct commit *merge_commit = pop_commit(&check_reachable);
+		clear_commit_marks(merge_commit, ALL_REV_FLAGS);
+	}
+
 	free(to_clear);
 }
 
@@ -2272,8 +2336,8 @@ int filter_refs(struct ref_array *array, struct ref_filter *filter, unsigned int
 	clear_contains_cache(&ref_cbdata.no_contains_cache);
 
 	/*  Filters that need revision walking */
-	if (filter->merge_commit)
-		do_merge_filter(&ref_cbdata);
+	reach_filter(array, filter->reachable_from, INCLUDE_REACHED);
+	reach_filter(array, filter->unreachable_from, EXCLUDE_REACHED);
 
 	return ret;
 }
@@ -2491,31 +2555,22 @@ int parse_opt_merge_filter(const struct option *opt, const char *arg, int unset)
 {
 	struct ref_filter *rf = opt->value;
 	struct object_id oid;
-	int no_merged = starts_with(opt->long_name, "no");
+	struct commit *merge_commit;
 
 	BUG_ON_OPT_NEG(unset);
 
-	if (rf->merge) {
-		if (no_merged) {
-			return error(_("option `%s' is incompatible with --merged"),
-				     opt->long_name);
-		} else {
-			return error(_("option `%s' is incompatible with --no-merged"),
-				     opt->long_name);
-		}
-	}
-
-	rf->merge = no_merged
-		? REF_FILTER_MERGED_OMIT
-		: REF_FILTER_MERGED_INCLUDE;
-
 	if (get_oid(arg, &oid))
 		die(_("malformed object name %s"), arg);
 
-	rf->merge_commit = lookup_commit_reference_gently(the_repository,
-							  &oid, 0);
-	if (!rf->merge_commit)
+	merge_commit = lookup_commit_reference_gently(the_repository, &oid, 0);
+
+	if (!merge_commit)
 		return error(_("option `%s' must point to a commit"), opt->long_name);
 
+	if (starts_with(opt->long_name, "no"))
+		commit_list_insert(merge_commit, &rf->unreachable_from);
+	else
+		commit_list_insert(merge_commit, &rf->reachable_from);
+
 	return 0;
 }