ftp.nice.ch/pub/next/developer/resources/palettes/CVSPalette.s.tar.gz#/CVSPalette/CVSPalette.m

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/*
 * Bob_Vadnais@pdh.com Sun Jun 27 13:46:11 PDT 1993
 *
 * Interface Builder palette that preserves the CVS directory inside a 
 * nib documement.
 *
 * Wouldn't it be nice if all apps had a document controller paradigm?
 * Then we could solve this same problem with Edit wiping out the CVS
 * directory inside .rtfd documents.
 */
 
#import "CVSPalette.h"

@implementation CVSPalette

extern char *sys_errlist[];

#define TAR "gnutar"

- finishInstantiate
/*
 * Register ourselves as an IBDocumentController so we will receive
 * didSaveDocument: messages from IB whenever the user saves a document.
 *
 * Due to an apparent bug in IB, we won't get registered correctly if
 * we're autoloaded at IB launch time, hence the delayed registration.
 */
{
	[NXApp perform:@selector(registerDocumentController:) 
	 with:self afterDelay:10000 cancelPrevious:NO];
	 
	return self;
}

- didSaveDocument:theDocument
{
	char path[MAXPATHLEN+10];
	int pathlen;

	[theDocument getDocumentPathIn:path];
	pathlen = strlen(path);
	strcpy(path + pathlen, "~/CVS");

	if (access(path, R_OK|X_OK) == 0) {

		char cmdbuf[MAXPATHLEN * 2 + 32];
		path[pathlen] = 0;  		// Chop off the ~/CVS we added
		sprintf(cmdbuf, TAR " cCf %s~ - CVS | " TAR " xpCf %s -", path, path);
		if (system(cmdbuf) < 0) {
			NXRunAlertPanel("Error", "Unable to copy %s~/CVS into %s: %s",
			 0, 0, 0, path, path, sys_errlist[errno]);
		}
	}

	return self;
}

@end

These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.