[PATCH 1/4] lib/colors: call gettext() only when the argument of --color is invalid

[Benno Schulenberg <bensberg@xxxxxxxxxx>]

Instead of calling gettext() before starting to interpret the argument
of option -L/--color, call it only when it's needed: when the argument
is not recognized.

Signed-off-by: Benno Schulenberg <bensberg@xxxxxxxxxx>
---
 disk-utils/cfdisk.c  | 3 +--
 disk-utils/fdisk.c   | 3 +--
 disk-utils/sfdisk.c  | 3 +--
 include/colors.h     | 2 +-
 lib/colors.c         | 7 ++++---
 misc-utils/cal.c     | 3 +--
 sys-utils/dmesg.c    | 3 +--
 text-utils/hexdump.c | 3 +--
 8 files changed, 11 insertions(+), 16 deletions(-)

diff --git a/disk-utils/cfdisk.c b/disk-utils/cfdisk.c
index fdd74fbf9..e4e16001e 100644
--- a/disk-utils/cfdisk.c
+++ b/disk-utils/cfdisk.c
@@ -2781,8 +2781,7 @@ int main(int argc, char *argv[])
 		case 'L':
 			colormode = UL_COLORMODE_AUTO;
 			if (optarg)
-				colormode = colormode_or_err(optarg,
-						_("unsupported color mode"));
+				colormode = colormode_or_err(optarg);
 			break;
                 case 'r':
                         read_only = 1;
diff --git a/disk-utils/fdisk.c b/disk-utils/fdisk.c
index 6493e2767..727178da4 100644
--- a/disk-utils/fdisk.c
+++ b/disk-utils/fdisk.c
@@ -1239,8 +1239,7 @@ int main(int argc, char **argv)
 		case 'L':
 			colormode = UL_COLORMODE_AUTO;
 			if (optarg)
-				colormode = colormode_or_err(optarg,
-						_("unsupported color mode"));
+				colormode = colormode_or_err(optarg);
 			break;
 		case 'n':
 			noauto_pt = 1;
diff --git a/disk-utils/sfdisk.c b/disk-utils/sfdisk.c
index 41b5558ea..7f2f3deea 100644
--- a/disk-utils/sfdisk.c
+++ b/disk-utils/sfdisk.c
@@ -2437,8 +2437,7 @@ int main(int argc, char *argv[])
 		case OPT_COLOR:
 			colormode = UL_COLORMODE_AUTO;
 			if (optarg)
-				colormode = colormode_or_err(optarg,
-						_("unsupported color mode"));
+				colormode = colormode_or_err(optarg);
 			break;
 		case OPT_MOVEDATA:
 			sf->movedata = 1;
diff --git a/include/colors.h b/include/colors.h
index 770161ae0..c02f61a57 100644
--- a/include/colors.h
+++ b/include/colors.h
@@ -33,7 +33,7 @@ enum colortmode {
 #endif
 
 extern int colormode_from_string(const char *str);
-extern int colormode_or_err(const char *str, const char *errmsg);
+extern int colormode_or_err(const char *str);
 
 /* Initialize the global variable UL_COLOR_TERM_OK */
 extern int colors_init(int mode, const char *util_name);
diff --git a/lib/colors.c b/lib/colors.c
index 4852a87cc..47d69cabc 100644
--- a/lib/colors.c
+++ b/lib/colors.c
@@ -34,6 +34,7 @@
 #include "c.h"
 #include "cctype.h"
 #include "colors.h"
+#include "nls.h"
 #include "pathnames.h"
 #include "strutils.h"
 
@@ -755,14 +756,14 @@ int colormode_from_string(const char *str)
 /*
  * Parses @str and exit(EXIT_FAILURE) on error
  */
-int colormode_or_err(const char *str, const char *errmsg)
+int colormode_or_err(const char *str)
 {
 	const char *p = str && *str == '=' ? str + 1 : str;
 	int colormode;
 
 	colormode = colormode_from_string(p);
 	if (colormode < 0)
-		errx(EXIT_FAILURE, "%s: '%s'", errmsg, p);
+		errx(EXIT_FAILURE, _("unsupported color mode: %s"), p);
 
 	return colormode;
 }
@@ -791,7 +792,7 @@ int main(int argc, char *argv[])
 			color_scheme = optarg;
 			break;
 		case 'm':
-			mode = colormode_or_err(optarg, "unsupported color mode");
+			mode = colormode_or_err(optarg);
 			break;
 		case 'n':
 			name = optarg;
diff --git a/misc-utils/cal.c b/misc-utils/cal.c
index 8c0eb3638..09622165a 100644
--- a/misc-utils/cal.c
+++ b/misc-utils/cal.c
@@ -421,8 +421,7 @@ int main(int argc, char **argv)
 		case OPT_COLOR:
 			ctl.colormode = UL_COLORMODE_AUTO;
 			if (optarg)
-				ctl.colormode = colormode_or_err(optarg,
-						_("unsupported color mode"));
+				ctl.colormode = colormode_or_err(optarg);
 			break;
 		case OPT_REFORM:
 			ctl.reform_year = parse_reform_year(optarg);
diff --git a/sys-utils/dmesg.c b/sys-utils/dmesg.c
index 8dcf67c94..6584613c7 100644
--- a/sys-utils/dmesg.c
+++ b/sys-utils/dmesg.c
@@ -1756,8 +1756,7 @@ int main(int argc, char *argv[])
 		case 'L':
 			colormode = UL_COLORMODE_AUTO;
 			if (optarg)
-				colormode = colormode_or_err(optarg,
-						_("unsupported color mode"));
+				colormode = colormode_or_err(optarg);
 			break;
 		case 'l':
 			ctl.fltr_lev= 1;
diff --git a/text-utils/hexdump.c b/text-utils/hexdump.c
index 36744554e..60bf6f94b 100644
--- a/text-utils/hexdump.c
+++ b/text-utils/hexdump.c
@@ -115,8 +115,7 @@ parse_args(int argc, char **argv, struct hexdump *hex)
 		case 'L':
 			colormode = UL_COLORMODE_AUTO;
 			if (optarg)
-				colormode = colormode_or_err(optarg,
-						_("unsupported color mode"));
+				colormode = colormode_or_err(optarg);
                         break;
 		case 'n':
 			hex->length = strtosize_or_err(optarg, _("failed to parse length"));
-- 
2.48.1