Add devel/cvsdiff2patch, a simple utility which, in the words of the

author, "Converts crappy CVS diffs into something that patch(1) 
understands."

1 files changed, 124 insertions, 0 deletions

diff --git a/devel/cvsdiff2patch/files/cvsdiff2patch.c b/devel/cvsdiff2patch/files/cvsdiff2patch.c
new file mode 100644
index 00000000000..15fa4b83908
--- /dev/null
+++ b/devel/cvsdiff2patch/files/cvsdiff2patch.c
@@ -0,0 +1,124 @@
+/* $NetBSD: cvsdiff2patch.c,v 1.1.1.1 2007/11/29 10:11:13 bjs Exp $ */
+
+/*
+ * Copyright (c) 2003 Research Engineering Development Inc.
+ * All rights reserved.
+ * Author: Alfred Perlstein <alfred@FreeBSD.org>
+ *
+ * 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
+ *
+ * $Id: cvsdiff2patch.c,v 1.1.1.1 2007/11/29 10:11:13 bjs Exp $
+ */
+
+/*
+ * Convert crappy CVS diffs into something that patch(1) understands.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <err.h>
+
+char *	xstrdup(const char *str);
+int	fileline(const char *line, int ch);
+
+char *
+xstrdup(const char *str)
+{
+	char *ret;
+
+	ret = strdup(str);
+	if (str == NULL)
+		err(1, "strdup");
+	return (ret);
+}
+
+int
+fileline(const char *line, int ch)
+{
+	int i;
+
+	for (i = 0; i < 3; i++) {
+		if (line[i] != ch)
+			return (0);
+	}
+	if (line[strlen(line) - 1] == ch) {
+		return (0);
+	}
+	return (1);
+}
+
+int
+main(void)
+{
+	char *line, *filepath;
+	size_t len;
+	const char *indexstr = "Index:";
+	size_t indexlen;
+
+	fprintf(stderr,
+	    "Cvsdiff2patch (c) 2003 Research Engineering Development\n");
+
+	filepath = NULL;
+	indexlen = strlen(indexstr);
+
+	while ((line = fgetln(stdin, &len)) != NULL) {
+		line[len - 1] = '\0';
+		if (len > indexlen && strncmp(line, indexstr, indexlen) == 0) {
+			char *p;
+
+			p = memchr(line, ' ', len);
+			if (p != NULL) {
+				p++;
+				free(filepath);
+				filepath = xstrdup(p);
+			}
+			continue;
+		}
+		if (len > 4 &&
+		    (fileline(line, '-') ||
+		     fileline(line, '+') ||
+		     fileline(line, '*'))) {
+			line[3] = '\0';
+			printf("%s %s\n", line, filepath);
+			continue;
+		}
+		line[len - 1] = '\n';
+		switch (*line) {
+		case ' ':
+		case '+':
+		case '-':
+		case '!':
+		case '@':
+		case '*':
+			fwrite(line, 1, len, stdout);
+			break;
+		default:
+#if 0
+			printf("blah! ");
+			fwrite(line, 1, len, stdout);
+#endif
+			break;
+		}
+	}
+	return (0);
+}