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From: "Glen Choo via GitGitGadget" <gitgitgadget@gmail.com>
To: git@vger.kernel.org
Cc: "Jonathan Tan" <jonathantanmy@google.com>,
	"Ævar Arnfjörð Bjarmason" <avarab@gmail.com>,
	"Emily Shaffer" <nasamuffin@google.com>,
	"Glen Choo" <chooglen@google.com>,
	"Glen Choo" <chooglen@google.com>
Subject: [PATCH 02/14] config.c: use kvi for CLI config
Date: Fri, 21 Apr 2023 19:13:06 +0000	[thread overview]
Message-ID: <a682612cff23449e682023303f17a8be1d73fc31.1682104398.git.gitgitgadget@gmail.com> (raw)
In-Reply-To: <pull.1497.git.git.1682104398.gitgitgadget@gmail.com>

From: Glen Choo <chooglen@google.com>

Plumb "struct key_value_info" and use "kvi_fn()" when parsing CLI
config. Do this by refactoring out and reusing the logic that sets the
"struct key_value_info" members when caching CLI config in a configset.

This lets us get rid of the fake "struct config_source" in
"git_config_from_parameters()", so we now only have to maintain one
implementation. Additionally, this plumbing also reveals that
"git_config_parse_parameter()" hasn't been setting either
"the_reader.source" or "the_reader.config_kvi", so any calls to
"current_*" would either BUG() or return *_UNKNOWN values.

Also, get rid of the BUG() checks that forbid setting ".config_kvi" and
".source" at the same time, since we will run afoul of that check. They
will soon be unnecessary when we remove ".source".

Signed-off-by: Glen Choo <chooglen@google.com>
---
 config.c | 58 ++++++++++++++++++++++++++++----------------------------
 1 file changed, 29 insertions(+), 29 deletions(-)

diff --git a/config.c b/config.c
index daad892e4fd..4e9e8e7abb9 100644
--- a/config.c
+++ b/config.c
@@ -99,8 +99,6 @@ static struct config_reader the_reader;
 static inline void config_reader_push_source(struct config_reader *reader,
 					     struct config_source *top)
 {
-	if (reader->config_kvi)
-		BUG("source should not be set while iterating a config set");
 	top->prev = reader->source;
 	reader->source = top;
 }
@@ -118,16 +116,12 @@ static inline struct config_source *config_reader_pop_source(struct config_reade
 static inline void config_reader_set_kvi(struct config_reader *reader,
 					 struct key_value_info *kvi)
 {
-	if (kvi && (reader->source || reader->parsing_scope))
-		BUG("kvi should not be set while parsing a config source");
 	reader->config_kvi = kvi;
 }
 
 static inline void config_reader_set_scope(struct config_reader *reader,
 					   enum config_scope scope)
 {
-	if (scope && reader->config_kvi)
-		BUG("scope should only be set when iterating through a config source");
 	reader->parsing_scope = scope;
 }
 
@@ -672,7 +666,8 @@ static int kvi_fn(config_fn_t fn, const char *key, const char *value,
 }
 
 static int config_parse_pair(const char *key, const char *value,
-			  config_fn_t fn, void *data)
+			     struct key_value_info *kvi,
+			     config_fn_t fn, void *data)
 {
 	char *canonical_name;
 	int ret;
@@ -682,17 +677,30 @@ static int config_parse_pair(const char *key, const char *value,
 	if (git_config_parse_key(key, &canonical_name, NULL))
 		return -1;
 
-	ret = (fn(canonical_name, value, data) < 0) ? -1 : 0;
+	ret = (kvi_fn(fn, canonical_name, value, kvi, data) < 0) ? -1 : 0;
 	free(canonical_name);
 	return ret;
 }
 
+
+/* for values read from `git_config_from_parameters()` */
+static void kvi_from_param(struct key_value_info *out)
+{
+	out->filename = NULL;
+	out->linenr = -1;
+	out->origin_type = CONFIG_ORIGIN_CMDLINE;
+	out->scope = CONFIG_SCOPE_COMMAND;
+}
+
 int git_config_parse_parameter(const char *text,
 			       config_fn_t fn, void *data)
 {
 	const char *value;
 	struct strbuf **pair;
 	int ret;
+	struct key_value_info kvi = { 0 };
+
+	kvi_from_param(&kvi);
 
 	pair = strbuf_split_str(text, '=', 2);
 	if (!pair[0])
@@ -711,12 +719,13 @@ int git_config_parse_parameter(const char *text,
 		return error(_("bogus config parameter: %s"), text);
 	}
 
-	ret = config_parse_pair(pair[0]->buf, value, fn, data);
+	ret = config_parse_pair(pair[0]->buf, value, &kvi, fn, data);
 	strbuf_list_free(pair);
 	return ret;
 }
 
-static int parse_config_env_list(char *env, config_fn_t fn, void *data)
+static int parse_config_env_list(char *env, struct key_value_info *kvi,
+				 config_fn_t fn, void *data)
 {
 	char *cur = env;
 	while (cur && *cur) {
@@ -750,7 +759,7 @@ static int parse_config_env_list(char *env, config_fn_t fn, void *data)
 					     CONFIG_DATA_ENVIRONMENT);
 			}
 
-			if (config_parse_pair(key, value, fn, data) < 0)
+			if (config_parse_pair(key, value, kvi, fn, data) < 0)
 				return -1;
 		}
 		else {
@@ -774,11 +783,9 @@ int git_config_from_parameters(config_fn_t fn, void *data)
 	struct strvec to_free = STRVEC_INIT;
 	int ret = 0;
 	char *envw = NULL;
-	struct config_source source = CONFIG_SOURCE_INIT;
-
-	source.origin_type = CONFIG_ORIGIN_CMDLINE;
-	config_reader_push_source(&the_reader, &source);
+	struct key_value_info kvi = { 0 };
 
+	kvi_from_param(&kvi);
 	env = getenv(CONFIG_COUNT_ENVIRONMENT);
 	if (env) {
 		unsigned long count;
@@ -814,7 +821,7 @@ int git_config_from_parameters(config_fn_t fn, void *data)
 			}
 			strbuf_reset(&envvar);
 
-			if (config_parse_pair(key, value, fn, data) < 0) {
+			if (config_parse_pair(key, value, &kvi, fn, data) < 0) {
 				ret = -1;
 				goto out;
 			}
@@ -825,7 +832,7 @@ int git_config_from_parameters(config_fn_t fn, void *data)
 	if (env) {
 		/* sq_dequote will write over it */
 		envw = xstrdup(env);
-		if (parse_config_env_list(envw, fn, data) < 0) {
+		if (parse_config_env_list(envw, &kvi, fn, data) < 0) {
 			ret = -1;
 			goto out;
 		}
@@ -835,7 +842,6 @@ out:
 	strbuf_release(&envvar);
 	strvec_clear(&to_free);
 	free(envw);
-	config_reader_pop_source(&the_reader);
 	return ret;
 }
 
@@ -2241,7 +2247,7 @@ static int do_git_config_sequence(struct config_reader *reader,
 		free(path);
 	}
 
-	config_reader_set_scope(reader, CONFIG_SCOPE_COMMAND);
+	config_reader_set_scope(reader, 0);
 	if (!opts->ignore_cmdline && git_config_from_parameters(fn, data) < 0)
 		die(_("unable to parse command-line config"));
 
@@ -2423,19 +2429,13 @@ static int configset_add_value(struct config_reader *reader,
 	l_item->e = e;
 	l_item->value_index = e->value_list.nr - 1;
 
-	if (!reader->source)
-		BUG("configset_add_value has no source");
-	if (reader->source->name) {
+	if (reader->source && reader->source->name) {
 		kv_info->filename = strintern(reader->source->name);
 		kv_info->linenr = reader->source->linenr;
 		kv_info->origin_type = reader->source->origin_type;
-	} else {
-		/* for values read from `git_config_from_parameters()` */
-		kv_info->filename = NULL;
-		kv_info->linenr = -1;
-		kv_info->origin_type = CONFIG_ORIGIN_CMDLINE;
-	}
-	kv_info->scope = reader->parsing_scope;
+		kv_info->scope = reader->parsing_scope;
+	} else
+		kvi_from_param(kv_info);
 	si->util = kv_info;
 
 	return 0;
-- 
gitgitgadget


  parent reply	other threads:[~2023-04-21 19:13 UTC|newest]

Thread overview: 115+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-21 19:13 [PATCH 00/14] [RFC] config: remove global state from config iteration Glen Choo via GitGitGadget
2023-04-21 19:13 ` [PATCH 01/14] config.c: introduce kvi_fn(), use it for configsets Glen Choo via GitGitGadget
2023-04-21 19:13 ` Glen Choo via GitGitGadget [this message]
2023-05-01 11:06   ` [PATCH 02/14] config.c: use kvi for CLI config Ævar Arnfjörð Bjarmason
2023-04-21 19:13 ` [PATCH 03/14] config: use kvi for config files Glen Choo via GitGitGadget
2023-04-21 19:13 ` [PATCH 04/14] config: add kvi.path, use it to evaluate includes Glen Choo via GitGitGadget
2023-04-21 19:13 ` [PATCH 05/14] config: pass source to config_parser_event_fn_t Glen Choo via GitGitGadget
2023-04-21 19:13 ` [PATCH 06/14] config: inline git_color_default_config Glen Choo via GitGitGadget
2023-04-21 19:13 ` [PATCH 07/14] urlmatch.h: use config_fn_t type Glen Choo via GitGitGadget
2023-04-21 19:13 ` [PATCH 08/14] (RFC-only) config: add kvi arg to config_fn_t Glen Choo via GitGitGadget
2023-04-21 19:13 ` [PATCH 09/14] (RFC-only) config: apply cocci to config_fn_t implementations Glen Choo via GitGitGadget
2023-04-21 19:13 ` [PATCH 10/14] (RFC-only) config: finish config_fn_t refactor Glen Choo via GitGitGadget
2023-05-01 11:19   ` Ævar Arnfjörð Bjarmason
2023-05-05 21:07     ` Jonathan Tan
2023-05-09 22:46       ` Glen Choo
2023-05-11 16:21         ` Jonathan Tan
2023-05-08 21:00     ` Glen Choo
2023-04-21 19:13 ` [PATCH 11/14] config: remove current_config_(line|name|origin_type) Glen Choo via GitGitGadget
2023-04-21 19:13 ` [PATCH 12/14] config: remove current_config_scope() Glen Choo via GitGitGadget
2023-04-21 19:13 ` [PATCH 13/14] config: pass kvi to die_bad_number() Glen Choo via GitGitGadget
2023-04-21 19:13 ` [PATCH 14/14] config: remove config_reader from configset_add_value Glen Choo via GitGitGadget
2023-05-30 18:41 ` [PATCH v2 00/14] [RFC] config: remove global state from config iteration Glen Choo via GitGitGadget
2023-05-30 18:41   ` [PATCH v2 01/14] config: inline git_color_default_config Glen Choo via GitGitGadget
2023-05-30 18:42   ` [PATCH v2 02/14] urlmatch.h: use config_fn_t type Glen Choo via GitGitGadget
2023-05-30 18:42   ` [PATCH v2 03/14] (RFC-only) config: add kvi arg to config_fn_t Glen Choo via GitGitGadget
2023-06-01  9:50     ` Phillip Wood
2023-06-01 16:22       ` Glen Choo
2023-06-02  9:54         ` Phillip Wood
2023-06-02 16:46           ` Glen Choo
2023-06-05  9:38             ` Phillip Wood
2023-06-09 23:19               ` Glen Choo
2023-05-30 18:42   ` [PATCH v2 04/14] (RFC-only) config: apply cocci to config_fn_t implementations Glen Choo via GitGitGadget
2023-05-30 18:42   ` [PATCH v2 05/14] (RFC-only) config: finish config_fn_t refactor Glen Choo via GitGitGadget
2023-06-01 22:17     ` Jonathan Tan
2023-05-30 18:42   ` [PATCH v2 06/14] config.c: pass kvi in configsets Glen Choo via GitGitGadget
2023-06-01 22:21     ` Jonathan Tan
2023-05-30 18:42   ` [PATCH v2 07/14] config: provide kvi with config files Glen Choo via GitGitGadget
2023-06-01 22:41     ` Jonathan Tan
2023-06-01 23:54     ` Jonathan Tan
2023-05-30 18:42   ` [PATCH v2 08/14] builtin/config.c: test misuse of format_config() Glen Choo via GitGitGadget
2023-05-30 18:42   ` [PATCH v2 09/14] config.c: provide kvi with CLI config Glen Choo via GitGitGadget
2023-06-01 23:35     ` Jonathan Tan
2023-06-02 17:26       ` Glen Choo
2023-05-30 18:42   ` [PATCH v2 10/14] trace2: plumb config kvi Glen Choo via GitGitGadget
2023-06-01 23:38     ` Jonathan Tan
2023-05-30 18:42   ` [PATCH v2 11/14] config: pass kvi to die_bad_number() Glen Choo via GitGitGadget
2023-06-01 23:48     ` Jonathan Tan
2023-06-02 17:23       ` Glen Choo
2023-05-30 18:42   ` [PATCH v2 12/14] config.c: remove config_reader from configsets Glen Choo via GitGitGadget
2023-05-30 18:42   ` [PATCH v2 13/14] config: add kvi.path, use it to evaluate includes Glen Choo via GitGitGadget
2023-06-02  0:06     ` Jonathan Tan
2023-05-30 18:42   ` [PATCH v2 14/14] config: pass source to config_parser_event_fn_t Glen Choo via GitGitGadget
2023-06-02  0:08     ` Jonathan Tan
2023-06-02 17:20       ` Glen Choo
2023-06-20 19:43   ` [PATCH v3 00/12] config: remove global state from config iteration Glen Choo via GitGitGadget
2023-06-20 19:43     ` [PATCH v3 01/12] config: inline git_color_default_config Glen Choo via GitGitGadget
2023-06-20 21:01       ` Junio C Hamano
2023-06-20 19:43     ` [PATCH v3 02/12] urlmatch.h: use config_fn_t type Glen Choo via GitGitGadget
2023-06-20 21:02       ` Junio C Hamano
2023-06-20 19:43     ` [PATCH v3 03/12] config: add ctx arg to config_fn_t Glen Choo via GitGitGadget
2023-06-20 19:43     ` [PATCH v3 04/12] config.c: pass ctx in configsets Glen Choo via GitGitGadget
2023-06-20 21:19       ` Junio C Hamano
2023-06-20 19:43     ` [PATCH v3 05/12] config: pass ctx with config files Glen Choo via GitGitGadget
2023-06-20 19:43     ` [PATCH v3 06/12] builtin/config.c: test misuse of format_config() Glen Choo via GitGitGadget
2023-06-20 21:35       ` Junio C Hamano
2023-06-20 23:06         ` Glen Choo
2023-06-23 20:32       ` Jonathan Tan
2023-06-24  1:31         ` Jeff King
2023-06-28 17:28         ` Glen Choo
2023-06-20 19:43     ` [PATCH v3 07/12] config.c: pass ctx with CLI config Glen Choo via GitGitGadget
2023-06-23 20:35       ` Jonathan Tan
2023-06-23 21:41         ` Glen Choo
2023-06-20 19:43     ` [PATCH v3 08/12] trace2: plumb config kvi Glen Choo via GitGitGadget
2023-06-23 20:40       ` Jonathan Tan
2023-06-20 19:43     ` [PATCH v3 09/12] config: pass kvi to die_bad_number() Glen Choo via GitGitGadget
2023-06-20 19:43     ` [PATCH v3 10/12] config.c: remove config_reader from configsets Glen Choo via GitGitGadget
2023-06-23 20:57       ` Jonathan Tan
2023-06-23 21:33         ` Junio C Hamano
2023-06-20 19:43     ` [PATCH v3 11/12] config: add kvi.path, use it to evaluate includes Glen Choo via GitGitGadget
2023-06-20 19:43     ` [PATCH v3 12/12] config: pass source to config_parser_event_fn_t Glen Choo via GitGitGadget
2023-06-20 21:46       ` Junio C Hamano
2023-06-21 21:46     ` [PATCH v3 00/12] config: remove global state from config iteration Junio C Hamano
2023-06-21 23:06       ` Glen Choo
2023-06-23 21:02         ` Jonathan Tan
2023-06-23 21:33           ` Junio C Hamano
2023-06-23 21:45           ` Glen Choo
2023-06-26 18:11     ` [PATCH v4 " Glen Choo via GitGitGadget
2023-06-26 18:11       ` [PATCH v4 01/12] config: inline git_color_default_config Glen Choo via GitGitGadget
2023-06-26 18:11       ` [PATCH v4 02/12] urlmatch.h: use config_fn_t type Glen Choo via GitGitGadget
2023-06-26 18:11       ` [PATCH v4 03/12] config: add ctx arg to config_fn_t Glen Choo via GitGitGadget
2023-06-26 18:11       ` [PATCH v4 04/12] config.c: pass ctx in configsets Glen Choo via GitGitGadget
2023-06-26 18:11       ` [PATCH v4 05/12] config: pass ctx with config files Glen Choo via GitGitGadget
2023-06-26 18:11       ` [PATCH v4 06/12] builtin/config.c: test misuse of format_config() Glen Choo via GitGitGadget
2023-06-26 18:11       ` [PATCH v4 07/12] config.c: pass ctx with CLI config Glen Choo via GitGitGadget
2023-06-26 18:11       ` [PATCH v4 08/12] trace2: plumb config kvi Glen Choo via GitGitGadget
2023-06-26 18:11       ` [PATCH v4 09/12] config: pass kvi to die_bad_number() Glen Choo via GitGitGadget
2023-06-26 18:11       ` [PATCH v4 10/12] config.c: remove config_reader from configsets Glen Choo via GitGitGadget
2023-06-26 18:11       ` [PATCH v4 11/12] config: add kvi.path, use it to evaluate includes Glen Choo via GitGitGadget
2023-06-26 18:11       ` [PATCH v4 12/12] config: pass source to config_parser_event_fn_t Glen Choo via GitGitGadget
2023-06-26 20:45       ` [PATCH v4 00/12] config: remove global state from config iteration Junio C Hamano
2023-06-28 19:26       ` [PATCH v5 00/11] " Glen Choo via GitGitGadget
2023-06-28 19:26         ` [PATCH v5 01/11] config: inline git_color_default_config Glen Choo via GitGitGadget
2023-06-28 19:26         ` [PATCH v5 02/11] urlmatch.h: use config_fn_t type Glen Choo via GitGitGadget
2023-06-28 19:26         ` [PATCH v5 03/11] config: add ctx arg to config_fn_t Glen Choo via GitGitGadget
2023-06-28 19:26         ` [PATCH v5 04/11] config.c: pass ctx in configsets Glen Choo via GitGitGadget
2023-06-28 19:26         ` [PATCH v5 05/11] config: pass ctx with config files Glen Choo via GitGitGadget
2023-06-28 19:26         ` [PATCH v5 06/11] config.c: pass ctx with CLI config Glen Choo via GitGitGadget
2023-06-28 19:26         ` [PATCH v5 07/11] trace2: plumb config kvi Glen Choo via GitGitGadget
2023-06-28 19:26         ` [PATCH v5 08/11] config: pass kvi to die_bad_number() Glen Choo via GitGitGadget
2023-06-28 19:26         ` [PATCH v5 09/11] config.c: remove config_reader from configsets Glen Choo via GitGitGadget
2023-06-28 19:26         ` [PATCH v5 10/11] config: add kvi.path, use it to evaluate includes Glen Choo via GitGitGadget
2023-06-28 19:26         ` [PATCH v5 11/11] config: pass source to config_parser_event_fn_t Glen Choo via GitGitGadget
2023-06-28 22:23         ` [PATCH v5 00/11] config: remove global state from config iteration Jonathan Tan
2023-06-28 22:47           ` Junio C Hamano
2023-07-11 18:41         ` Phillip Wood

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