From: Antoine Fontaine <antoine.fontaine@epfl.ch>
Date: Mon, 3 May 2021 19:52:15 +0000 (+0200)
Subject: quake3/help: move away from termcap
X-Git-Url: https://git.xonotic.org/?p=xonotic%2Fnetradiant.git;a=commitdiff_plain;h=fa5abd8c4ea119b7d60056122cbbd7b02dde4260

quake3/help: move away from termcap

termcap is old and crusty. terminfo seems more recent (lol), but maybe
we can get away without adding any dependency :)

On my system, no -ltermcap exists. (Well, except a compat one provided
by zsh for some reason.)
---

diff --git a/tools/quake3/CMakeLists.txt b/tools/quake3/CMakeLists.txt
index 4b30535a..638d867c 100644
--- a/tools/quake3/CMakeLists.txt
+++ b/tools/quake3/CMakeLists.txt
@@ -193,4 +193,4 @@ if (UNIX)
     target_link_libraries(q3data m)
 endif ()
 
-target_link_libraries(q3map2 termcap)
+target_link_libraries(q3map2)
diff --git a/tools/quake3/q3map2/help.c b/tools/quake3/q3map2/help.c
index fc77050a..f4fd717b 100644
--- a/tools/quake3/q3map2/help.c
+++ b/tools/quake3/q3map2/help.c
@@ -31,9 +31,8 @@
 /* dependencies */
 #include "q3map2.h"
 
-
-
-unsigned terminalColumns = 80;
+#include <sys/ioctl.h>
+static unsigned terminalColumns = 80;
 
 struct HelpOption
 {
@@ -41,6 +40,7 @@ struct HelpOption
 	const char* description;
 };
 
+// FIXME: low column width cause an endless loop
 void HelpOptions(const char* group_name, int indentation, int width, struct HelpOption* options, int count)
 {
 	indentation *= 2;
@@ -457,18 +457,16 @@ void HelpGames()
 	printf("\n\n");
 }
 
-#include <termcap.h>
-
 void HelpMain(const char* arg)
 {
 	printf("Usage: q3map2 [stage] [common options...] [stage options...] [stage source file]\n");
 	printf("       q3map2 -help [stage]\n");
 	printf("       q3map2 -help all\n\n");
 
-	static char termbuf[2048];
-	char *termtype = getenv("TERM");
-	if (tgetent(termbuf, termtype) >= 0) {
-		terminalColumns = tgetnum("co");
+	struct winsize ws;
+	ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws);
+	if (ws.ws_col > 60) {
+		terminalColumns = ws.ws_col;
 	}
 
 	HelpCommon();