New utilities: xbps-{install,pkgdb,query,reconfigure,rindex} (WIP).

bin/xbps-install/util.c

@@ -0,0 +1,71 @@
+/*-
+ * Copyright (c) 2008-2012 Juan Romero Pardines.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <fnmatch.h>
+#include <string.h>
+#include <strings.h>
+#include <sys/ioctl.h>
+
+#include <xbps_api.h>
+#include "defs.h"
+
+size_t
+get_maxcols(void)
+{
+	struct winsize ws;
+
+	if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) == 0)
+		return ws.ws_col;
+
+	return 80;
+}
+
+void
+print_package_line(const char *str, size_t maxcols, bool reset)
+{
+	static size_t cols;
+	static bool first;
+
+	if (reset) {
+		cols = 0;
+		first = false;
+		return;
+	}
+	cols += strlen(str) + 4;
+	if (cols <= maxcols) {
+		if (first == false) {
+			printf("  ");
+			first = true;
+		}
+	} else {
+		printf("\n  ");
+		cols = strlen(str) + 4;
+	}
+	printf("%s ", str);
+}