[PATCH] Make cvs2git support remote CVS repos

[Mark Allen <mrallen1@yahoo.com>]

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Added a "--module=cvsmodule" command line option and (since we're going to process argv
anyway) made "-v" for verbose mode a command line option too, instead of a compile time
option.

I've tested it on some (small) private CVS repos and it *seems* to work, although some of
the initial commit ordering is wrong, but I think this is due to the commit time being
wrong within my CVS repo itself.

I didn't make author and email prettyprint, but I really want to make it a command line
option, the discussion from yesterday about whether prettyprinting should be at the
plumbing or porcelain layer notwithstanding.

Regards,

--Mark

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Index: cvs2git.c
===================================================================
--- a0e0d3940c350f14545a481b179217f626c93440/cvs2git.c  (mode:100644)
+++ uncommitted/cvs2git.c  (mode:100644)
@@ -32,6 +32,8 @@
 };
 
 static char *rcsdir;
+static char *cvsroot;
+static char *cvsmodule;
 
 static char date[100];
 static char author[100];
@@ -194,9 +196,13 @@
 	if (dir)
 		printf("mkdir -p %.*s\n", (int)(dir - name), name);
 
-	get_rcs_name(rcspathname, name, dir);
-		
-	printf("co -q -p -r%s '%s' > '%s'\n", version, rcspathname, name);
+	if ( !cvsmodule ) {
+		get_rcs_name(rcspathname, name, dir);
+		printf("co -q -p -r%s '%s' > '%s'\n", version, rcspathname, name);
+	} else {
+		printf("cvs -d %s checkout -r%s -p '%s/%s' > '%s'\n", cvsroot, version, cvsmodule, name, name);
+	}
+
 	printf("git-update-cache --add -- '%s'\n", name);
 }
 
@@ -217,13 +223,34 @@
 {
 	static char line[1000];
 	enum state state = Header;
+	int i;
+
+	for (i = 1; i < argc; i++) {
+		const char *arg = argv[i];
+		if (!memcmp(arg, "--module=", 9)) {
+			cvsroot = getenv("CVSROOT");
+			cvsmodule = (char *)arg+9;
+			continue;
+		} 
+		if (!strcmp(arg, "-v")) {
+			verbose = 1;
+			continue;
+		}
+	}
+
+	if (!cvsmodule)
+		rcsdir = getenv("RCSDIR");
 
-	rcsdir = getenv("RCSDIR");
-	if (!rcsdir) {
+	if (!cvsmodule && !rcsdir) {
 		fprintf(stderr, "I need an $RCSDIR\n");
 		exit(1);
 	}
 
+	if (cvsmodule && !cvsroot) {
+		fprintf(stderr, "I need a $CVSROOT\n");
+		exit(1);
+	}
+
 	printf("[ -d .git ] && exit 1\n");
 	printf("git-init-db\n");
 	printf("mkdir -p .git/refs/heads\n");