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[PATCH v3 1/5] config: factor out config file stack management

From
Heiko Voigt <hvoigt@hvoigt.net>
Date
May 9, 2013, 16:17 UTC
Message-ID
<20130509161753.GC3526@book-mint>
In-Reply-To
<20130509154020.GA26423@book-mint>

Because a config callback may start parsing a new file, the global context regarding the current config file is stored as a stack. Currently we only need to manage that stack from git_config_from_file. Let's factor it out to allow new sources of config data.

Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net>
---
 config.c | 42 ++++++++++++++++++++++++++++--------------
 1 file changed, 28 insertions(+), 14 deletions(-)
diff --git a/config.c b/config.c
index aefd80b..f0494f3 100644
--- a/config.c
+++ b/config.c
@@ -896,6 +896,32 @@ int git_default_config(const char *var, const char *value, void *dummy)
 	return 0;
 }
 
+/*
+ * The fields f and name of top need to be initialized before calling
+ * this function.
+ */
+static int do_config_from(struct config_file *top, config_fn_t fn, void *data)
+{
+	int ret;
+
+	/* push config-file parsing state stack */
+	top->prev = cf;
+	top->linenr = 1;
+	top->eof = 0;
+	strbuf_init(&top->value, 1024);
+	strbuf_init(&top->var, 1024);
+	cf = top;
+
+	ret = git_parse_file(fn, data);
+
+	/* pop config-file parsing state stack */
+	strbuf_release(&top->value);
+	strbuf_release(&top->var);
+	cf = top->prev;
+
+	return ret;
+}
+
 int git_config_from_file(config_fn_t fn, const char *filename, void *data)
 {
 	int ret;
@@ -905,22 +931,10 @@ int git_config_from_file(config_fn_t fn, const char *filename, void *data)
 	if (f) {
 		config_file top;
 
-		/* push config-file parsing state stack */
-		top.prev = cf;
 		top.f = f;
 		top.name = filename;
-		top.linenr = 1;
-		top.eof = 0;
-		strbuf_init(&top.value, 1024);
-		strbuf_init(&top.var, 1024);
-		cf = &top;
-
-		ret = git_parse_file(fn, data);
-
-		/* pop config-file parsing state stack */
-		strbuf_release(&top.value);
-		strbuf_release(&top.var);
-		cf = top.prev;
+
+		ret = do_config_from(&top, fn, data);
 
 		fclose(f);
 	}
-- 
1.8.3.rc1.40.gba374ae
Next: Heiko Voigt
Message 1 of 14 in “config: factor out config file stack management”
  1. 1/5 config: factor out config file stack managementHeiko Voigt, May 9, 2013
  2. 2/5 config: drop cf validity check in get_next_char()Heiko Voigt, May 9, 2013
  3. 3/5 config: make parsing stack struct independent from actual data sourceHeiko Voigt, May 9, 2013
  4. Jeff KingMay 9, 2013
  5. 4/5 teach config --blob option to parse config from databaseHeiko Voigt, May 9, 2013
  6. Eric SunshineMay 9, 2013
  7. Jeff KingMay 9, 2013
  8. Heiko VoigtMay 10, 2013
  9. 5/5 do not die when error in config parsing of buf occursHeiko Voigt, May 9, 2013
  10. Eric SunshineMay 9, 2013
  11. Jeff KingMay 9, 2013
  12. Heiko VoigtMay 11, 2013
  13. Jeff KingMay 11, 2013
  14. Heiko VoigtMay 11, 2013

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