[PATCH 02/21] ls_colors.c: parse color.ls.* from config file

["Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>]

This is the second (and preferred) source for color information. This
will override $LS_COLORS.

Helped-by: Michael Blume <blume.mike@gmail.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 Documentation/config.txt | 11 +++++++++++
 ls_colors.c              | 30 +++++++++++++++++++++++++++++-
 2 files changed, 40 insertions(+), 1 deletion(-)

diff --git a/Documentation/config.txt b/Documentation/config.txt
index 9220725..2090866 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -940,6 +940,17 @@ color.status.<slot>::
 	to red). The values of these variables may be specified as in
 	color.branch.<slot>.
 
+color.ls.<slot>::
+	Use customized color for file name colorization. If not set
+	and the environment variable LS_COLORS is set, color settings
+	from $LS_COLORS are used. `<slot>` can be `normal`, `file`,
+	`directory`, `symlink`, `fifo`, `socket`, `block`, `char`,
+	`missing`, `orphan`, `executable`, `door`, `setuid`, `setgid`,
+	`sticky`, `otherwritable`, `stickyotherwritable`, `cap`,
+	`multihardlink`. The values of these variables may be
+	specified as in color.branch.<slot>.
+
+
 color.ui::
 	This variable determines the default value for variables such
 	as `color.diff` and `color.grep` that control the use of color
diff --git a/ls_colors.c b/ls_colors.c
index e743315..2dc2d39 100644
--- a/ls_colors.c
+++ b/ls_colors.c
@@ -68,6 +68,14 @@ static const char *const indicator_name[] = {
 	NULL
 };
 
+static const char * const config_name[] = {
+	"", "", "", "", "normal", "file", "directory", "symlink",
+	"fifo", "socket", "block", "char", "missing", "orphan", "executable",
+	"door", "setuid", "setgid", "sticky", "otherwritable",
+	"stickyotherwritable", "cap", "multihardlink", "",
+	NULL
+};
+
 struct bin_str {
 	size_t len;			/* Number of bytes */
 	const char *string;		/* Pointer to the same */
@@ -285,6 +293,23 @@ static int get_funky_string(char **dest, const char **src, int equals_end,
 	return state != ST_ERROR;
 }
 
+static int ls_colors_config(const char *var, const char *value, void *cb)
+{
+	int slot;
+	if (!starts_with(var, "color.ls."))
+		return 0;
+	var += 9;
+	for (slot = 0; config_name[slot]; slot++)
+		if (!strcasecmp(var, config_name[slot]))
+			break;
+	if (!config_name[slot])
+		return 0;
+	if (!value)
+		return config_error_nonbool(var);
+	color_parse(value, ls_colors[slot]);
+	return 0;
+}
+
 void parse_ls_color(void)
 {
 	const char *p;			/* Pointer to character being parsed */
@@ -297,8 +322,10 @@ void parse_ls_color(void)
 	char *start;
 	size_t len;
 
-	if ((p = getenv("LS_COLORS")) == NULL || *p == '\0')
+	if ((p = getenv("LS_COLORS")) == NULL || *p == '\0') {
+		git_config(ls_colors_config, NULL);
 		return;
+	}
 
 	ext = NULL;
 	strcpy(label, "??");
@@ -395,4 +422,5 @@ void parse_ls_color(void)
 
 	if (!strcmp(ls_colors[LS_LN], "target"))
 		color_symlink_as_referent = 1;
+	git_config(ls_colors_config, NULL);
 }
-- 
2.3.0.rc1.137.g477eb31