[PATCH v6 08/15] promisor-remote: parse remote.*.partialclonefilter

[Christian Couder <christian.couder@gmail.com>]

This makes it possible to specify a different partial clone
filter for each promisor remote.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
---
 builtin/fetch.c               |  2 +-
 list-objects-filter-options.c | 27 +++++++++++++++------------
 list-objects-filter-options.h |  3 ++-
 promisor-remote.c             | 15 +++++++++++++++
 promisor-remote.h             |  5 ++++-
 t/t0410-partial-clone.sh      |  2 +-
 t/t5601-clone.sh              |  1 +
 t/t5616-partial-clone.sh      |  2 +-
 8 files changed, 40 insertions(+), 17 deletions(-)

diff --git a/builtin/fetch.c b/builtin/fetch.c
index f74bd78144..13d8133130 100644
--- a/builtin/fetch.c
+++ b/builtin/fetch.c
@@ -1491,7 +1491,7 @@ static inline void fetch_one_setup_partial(struct remote *remote)
 	 * the config.
 	 */
 	if (!filter_options.choice)
-		partial_clone_get_default_filter_spec(&filter_options);
+		partial_clone_get_default_filter_spec(&filter_options, remote->name);
 	return;
 }
 
diff --git a/list-objects-filter-options.c b/list-objects-filter-options.c
index b0de7d3c17..28c571f922 100644
--- a/list-objects-filter-options.c
+++ b/list-objects-filter-options.c
@@ -30,6 +30,9 @@ static int gently_parse_list_objects_filter(
 {
 	const char *v0;
 
+	if (!arg)
+		return 0;
+
 	if (filter_options->choice) {
 		if (errbuf) {
 			strbuf_addstr(
@@ -148,6 +151,7 @@ void partial_clone_register(
 	const struct list_objects_filter_options *filter_options)
 {
 	char *cfg_name;
+	char *filter_name;
 
 	/* Check if it is already registered */
 	if (!promisor_remote_find(remote)) {
@@ -162,27 +166,26 @@ void partial_clone_register(
 	/*
 	 * Record the initial filter-spec in the config as
 	 * the default for subsequent fetches from this remote.
-	 *
-	 * TODO: record it into remote.<name>.partialclonefilter
 	 */
-	core_partial_clone_filter_default =
-		xstrdup(filter_options->filter_spec);
-	git_config_set("core.partialclonefilter",
-		       core_partial_clone_filter_default);
+	filter_name = xstrfmt("remote.%s.partialclonefilter", remote);
+	git_config_set(filter_name, filter_options->filter_spec);
+	free(filter_name);
 
 	/* Make sure the config info are reset */
 	promisor_remote_reinit();
 }
 
 void partial_clone_get_default_filter_spec(
-	struct list_objects_filter_options *filter_options)
+	struct list_objects_filter_options *filter_options,
+	const char *remote)
 {
+	struct promisor_remote *promisor = promisor_remote_find(remote);
+
 	/*
 	 * Parse default value, but silently ignore it if it is invalid.
 	 */
-	if (!core_partial_clone_filter_default)
-		return;
-	gently_parse_list_objects_filter(filter_options,
-					 core_partial_clone_filter_default,
-					 NULL);
+	if (promisor)
+		gently_parse_list_objects_filter(filter_options,
+						 promisor->partial_clone_filter,
+						 NULL);
 }
diff --git a/list-objects-filter-options.h b/list-objects-filter-options.h
index c54f0000fb..8deaa287b5 100644
--- a/list-objects-filter-options.h
+++ b/list-objects-filter-options.h
@@ -87,6 +87,7 @@ void partial_clone_register(
 	const char *remote,
 	const struct list_objects_filter_options *filter_options);
 void partial_clone_get_default_filter_spec(
-	struct list_objects_filter_options *filter_options);
+	struct list_objects_filter_options *filter_options,
+	const char *remote);
 
 #endif /* LIST_OBJECTS_FILTER_OPTIONS_H */
diff --git a/promisor-remote.c b/promisor-remote.c
index 6a8856f475..826890f7b8 100644
--- a/promisor-remote.c
+++ b/promisor-remote.c
@@ -75,6 +75,21 @@ static int promisor_remote_config(const char *var, const char *value, void *data
 		free(remote_name);
 		return 0;
 	}
+	if (!strcmp(subkey, "partialclonefilter")) {
+		struct promisor_remote *r;
+		char *remote_name = xmemdupz(name, namelen);
+
+		r = promisor_remote_lookup(remote_name, NULL);
+		if (!r)
+			r = promisor_remote_new(remote_name);
+
+		free(remote_name);
+
+		if (!r)
+			return 0;
+
+		return git_config_string(&r->partial_clone_filter, var, value);
+	}
 
 	return 0;
 }
diff --git a/promisor-remote.h b/promisor-remote.h
index dddd4048e0..838cb092f3 100644
--- a/promisor-remote.h
+++ b/promisor-remote.h
@@ -5,10 +5,13 @@ struct object_id;
 
 /*
  * Promisor remote linked list
- * Its information come from remote.XXX config entries.
+ *
+ * Information in its fields come from remote.XXX config entries or
+ * from extensions.partialclone or core.partialclonefilter.
  */
 struct promisor_remote {
 	struct promisor_remote *next;
+	const char *partial_clone_filter;
 	const char name[FLEX_ARRAY];
 };
 
diff --git a/t/t0410-partial-clone.sh b/t/t0410-partial-clone.sh
index 3559313bd0..3082eff2bf 100755
--- a/t/t0410-partial-clone.sh
+++ b/t/t0410-partial-clone.sh
@@ -26,7 +26,7 @@ promise_and_delete () {
 test_expect_success 'extensions.partialclone without filter' '
 	test_create_repo server &&
 	git clone --filter="blob:none" "file://$(pwd)/server" client &&
-	git -C client config --unset core.partialclonefilter &&
+	git -C client config --unset remote.origin.partialclonefilter &&
 	git -C client fetch origin
 '
 
diff --git a/t/t5601-clone.sh b/t/t5601-clone.sh
index 534d03a4d7..078cf48dd6 100755
--- a/t/t5601-clone.sh
+++ b/t/t5601-clone.sh
@@ -655,6 +655,7 @@ partial_clone () {
 
 	# Ensure that unneeded blobs are not inadvertently fetched.
 	test_config -C client remote.origin.promisor "false" &&
+	git -C client config --unset remote.origin.partialclonefilter &&
 	test_must_fail git -C client cat-file -e "$HASH1" &&
 
 	# But this blob was fetched, because clone performs an initial checkout
diff --git a/t/t5616-partial-clone.sh b/t/t5616-partial-clone.sh
index 8f9a62aac0..8ae7ba9c95 100755
--- a/t/t5616-partial-clone.sh
+++ b/t/t5616-partial-clone.sh
@@ -43,7 +43,7 @@ test_expect_success 'do partial clone 1' '
 	test_cmp expect_1.oids observed.oids &&
 	test "$(git -C pc1 config --local core.repositoryformatversion)" = "1" &&
 	test "$(git -C pc1 config --local remote.origin.promisor)" = "true" &&
-	test "$(git -C pc1 config --local core.partialclonefilter)" = "blob:none"
+	test "$(git -C pc1 config --local remote.origin.partialclonefilter)" = "blob:none"
 '
 
 # checkout master to force dynamic object fetch of blobs at HEAD.
-- 
2.22.0.229.ga13d9ffdf7.dirty