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Modify the CVSFILE structure using a union to keep information about
both files and directories.  We can now keep the revision number for
regular files, and don't need to fetch the appropriate entry in the
command callbacks.  This saves a huge amount of parsing on Entries
files.

ok joris@

/*	$OpenBSD: annotate.c,v 1.11 2005/04/18 21:02:49 jfb Exp $	*/
/*
 * Copyright (c) 2004 Jean-Francois Brousseau <jfb@openbsd.org>
 * 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. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED ``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 <sys/param.h>
#include <sys/stat.h>

#include <errno.h>
#include <stdio.h>
#include <fcntl.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>

#include "cvs.h"
#include "rcs.h"
#include "log.h"
#include "proto.h"


int cvs_annotate_file(CVSFILE *, void *);
int cvs_annotate_prune(CVSFILE *, void *);
int cvs_annotate_options(char *, int, char **, int *);
int cvs_annotate_sendflags(struct cvsroot *);

struct cvs_cmd_info cvs_annotate = {
	cvs_annotate_options,
	cvs_annotate_sendflags,
	cvs_annotate_file,
	NULL, NULL,
	CF_SORT | CF_RECURSE | CF_IGNORE | CF_NOSYMS,
	CVS_REQ_ANNOTATE,
	CVS_CMD_ALLOWSPEC | CVS_CMD_SENDDIR | CVS_CMD_SENDARGS2
};	

static char *date, *rev;
static int usehead;

int
cvs_annotate_options(char *opt, int argc, char **argv, int *arg)
{
	int ch;

	usehead = 0;
	date = NULL;
	rev = NULL;

	while ((ch = getopt(argc, argv, opt)) != -1) {
		switch (ch) {
		case 'D':
			date = optarg;
			break;
		case 'f':
			usehead = 1;
			break;
		case 'l':
			cvs_annotate.file_flags &= ~CF_RECURSE;
			break;
		case 'R':
			cvs_annotate.file_flags |= CF_RECURSE;
			break;
		case 'r':
			rev = optarg;
			break;
		default:
			return (CVS_EX_USAGE);
		}
	}

	if ((date != NULL) && (rev != NULL)) {
		cvs_log(LP_ERR,
		    "the -D and -d arguments are mutually exclusive");
		return (CVS_EX_USAGE);
	}

	*arg = optind;
	return (0);
}

int
cvs_annotate_sendflags(struct cvsroot *root)
{
	if (usehead && (cvs_sendarg(root, "-f", 0) < 0))
		return (CVS_EX_PROTO);

	if (rev != NULL) {
		if ((cvs_sendarg(root, "-r", 0) < 0) ||
		    (cvs_sendarg(root, rev, 0) < 0))
			return (CVS_EX_PROTO);
	}

	if (date != NULL) {
		if ((cvs_sendarg(root, "-D", 0) < 0) ||
		    (cvs_sendarg(root, date, 0) < 0))
			return (CVS_EX_PROTO);
	}

	return (0);
}

/*
 * cvs_annotate_file()
 *
 * Annotate a single file.
 */
int
cvs_annotate_file(CVSFILE *cf, void *arg)
{
	int ret;
	char fpath[MAXPATHLEN];
	struct cvsroot *root;

	ret = 0;
	root = CVS_DIR_ROOT(cf);

	if (cf->cf_type == DT_DIR) {
		if (root->cr_method != CVS_METHOD_LOCAL) {
			if (cf->cf_cvstat == CVS_FST_UNKNOWN)
				ret = cvs_sendreq(root, CVS_REQ_QUESTIONABLE,
				    CVS_FILE_NAME(cf));
			else
				ret = cvs_senddir(root, cf);
		}

		return (ret);
	}

	cvs_file_getpath(cf, fpath, sizeof(fpath));

	if (root->cr_method != CVS_METHOD_LOCAL) {
		if (cvs_sendentry(root, cf) < 0) {
			return (CVS_EX_PROTO);
		}

		switch (cf->cf_cvstat) {
		case CVS_FST_UNKNOWN:
			ret = cvs_sendreq(root, CVS_REQ_QUESTIONABLE,
			    CVS_FILE_NAME(cf));
			break;
		case CVS_FST_UPTODATE:
			ret = cvs_sendreq(root, CVS_REQ_UNCHANGED,
			    CVS_FILE_NAME(cf));
			break;
		case CVS_FST_ADDED:
		case CVS_FST_MODIFIED:
			ret = cvs_sendreq(root, CVS_REQ_ISMODIFIED,
			    CVS_FILE_NAME(cf));
			break;
		default:
			break;
		}
	} else {
		if (cf->cf_cvstat == CVS_FST_UNKNOWN) {
			cvs_printf("? %s\n", fpath);
			return (0);
		}
	}

	return (ret);
}