From: H.G. Muller <h.g.muller@hccnet.nl>
Date: Mon, 13 Jan 2014 15:21:59 +0000 (+0100)
Subject: Add --show-config special option
X-Git-Url: http://winboard.nl/cgi-bin?a=commitdiff_plain;h=27f670dbe352c1333448bb137a6aa008e4cdf3ad;p=xboard.git

Add --show-config special option

This prints a list of configure parameters, and then exits. If a second
argument is given, it only prints the value of that config parameter,
so that tricks like cp *.svg `xboard --show-config Datadir`/themes/chu
can be used in install scripts of packages with piece images.
---

diff --git a/gtk/xboard.c b/gtk/xboard.c
index 20eeaff..6769a19 100644
--- a/gtk/xboard.c
+++ b/gtk/xboard.c
@@ -800,6 +800,23 @@ main (int argc, char **argv)
     }
 #endif
 
+    if(argc > 1 && !strcmp(argv[1], "--show-config")) { // [HGM] install: called to print config info
+	typedef struct {char *name, *value; } Config;
+	static Config configList[] = {
+	  { "Datadir", DATADIR },
+	  { "Sysconfdir", SYSCONFDIR },
+	  { NULL }
+	};
+	int i;
+
+	for(i=0; configList[i].name; i++) {
+	    if(argc > 2 && strcmp(argv[2], configList[i].name)) continue;
+	    if(argc > 2) printf("%s", configList[i].value);
+	    else printf("%-12s: %s\n", configList[i].name, configList[i].value);
+	}
+	exit(0);
+    }
+
     /* set up keyboard accelerators group */
     GtkAccelerators = gtk_accel_group_new();
 
diff --git a/xaw/xboard.c b/xaw/xboard.c
index d3d6ba2..292f7c2 100644
--- a/xaw/xboard.c
+++ b/xaw/xboard.c
@@ -990,6 +990,23 @@ main (int argc, char **argv)
 	exit(0);
     }
 
+    if(argc > 1 && !strcmp(argv[1], "--show-config")) { // [HGM] install: called to print config info
+	typedef struct {char *name, *value; } Config;
+	static Config configList[] = {
+	  { "Datadir", DATADIR },
+	  { "Sysconfdir", SYSCONFDIR },
+	  { NULL }
+	};
+	int i;
+
+	for(i=0; configList[i].name; i++) {
+	    if(argc > 2 && strcmp(argv[2], configList[i].name)) continue;
+	    if(argc > 2) printf("%s", configList[i].value);
+	    else printf("%-12s: %s\n", configList[i].name, configList[i].value);
+	}
+	exit(0);
+    }
+
     programName = strrchr(argv[0], '/');
     if (programName == NULL)
       programName = argv[0];