/*	$OpenBSD: getlog.c,v 1.10 2004/12/07 17:10:56 tedu 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 <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <paths.h>
#include <sysexits.h>

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


#define CVS_GLOG_RFONLY    0x01
#define CVS_GLOG_HDONLY    0x02


#define CVS_GETLOG_REVSEP   "----------------------------"
#define CVS_GETLOG_REVEND \
 "============================================================================="

#ifdef notyet
static void cvs_getlog_print   (const char *, RCSFILE *, u_int);
#endif
static int  cvs_getlog_file    (CVSFILE *, void *);



/*
 * cvs_getlog()
 *
 * Implement the `cvs log' command.
 */
int
cvs_getlog(int argc, char **argv)
{
	int i, rfonly, honly, flags;
	struct cvsroot *root;

	flags = CF_RECURSE;
	rfonly = 0;
	honly = 0;

	while ((i = getopt(argc, argv, "d:hlRr:")) != -1) {
		switch (i) {
		case 'd':
			break;
		case 'h':
			honly = 1;
			break;
		case 'l':
			flags &= ~CF_RECURSE;
			break;
		case 'R':
			rfonly = 1;
			break;
		case 'r':
			break;
		default:
			return (EX_USAGE);
		}
	}

	argc -= optind;
	argv += optind;

	if (argc == 0) {
		cvs_files = cvs_file_get(".", flags);
	} else {
		cvs_files = cvs_file_getspec(argv, argc, flags);
	}
	if (cvs_files == NULL)
		return (EX_DATAERR);

	cvs_file_examine(cvs_files, cvs_getlog_file, NULL);

	root = cvs_files->cf_ddat->cd_root;
	if (root->cr_method != CVS_METHOD_LOCAL) {
		cvs_senddir(root, cvs_files);
		if (argc > 0) {
			for (i = 0; i < argc; i++)
				cvs_sendarg(root, argv[i], 0);
		}
		cvs_sendreq(root, CVS_REQ_LOG, NULL);
	}

	return (0);
}


/*
 * cvs_getlog_file()
 *
 * Diff a single file.
 */
static int
cvs_getlog_file(CVSFILE *cf, void *arg)
{
	char *repo, fpath[MAXPATHLEN];
	RCSFILE *rf;
	struct cvsroot *root;
	struct cvs_ent *entp;

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

	if (cf->cf_type == DT_DIR) {
		if (cf->cf_cvstat == CVS_FST_UNKNOWN) {
			root = cf->cf_parent->cf_ddat->cd_root;
			cvs_sendreq(root, CVS_REQ_QUESTIONABLE,
			    CVS_FILE_NAME(cf));
		} else {
			root = cf->cf_ddat->cd_root;
			if ((cf->cf_parent == NULL) ||
			    (root != cf->cf_parent->cf_ddat->cd_root)) {
				cvs_connect(root);
			}

			cvs_senddir(root, cf);
		}

		return (0);
	} else
		root = cf->cf_parent->cf_ddat->cd_root;

	rf = NULL;
	if (cf->cf_parent != NULL) {
		repo = cf->cf_parent->cf_ddat->cd_repo;
	} else {
		repo = NULL;
	}

	if (cf->cf_cvstat == CVS_FST_UNKNOWN) {
		if (root->cr_method == CVS_METHOD_LOCAL)
			cvs_printf("? %s\n", fpath);
		else
			cvs_sendreq(root, CVS_REQ_QUESTIONABLE,
			    CVS_FILE_NAME(cf));
		return (0);
	}

	entp = cvs_ent_getent(fpath);
	if (entp == NULL)
		return (-1);

	if ((root->cr_method != CVS_METHOD_LOCAL) &&
	    (cvs_sendentry(root, entp) < 0)) {
		cvs_ent_free(entp);
		return (-1);
	}

	if (root->cr_method != CVS_METHOD_LOCAL) {
		switch (cf->cf_cvstat) {
		case CVS_FST_UPTODATE:
			cvs_sendreq(root, CVS_REQ_UNCHANGED, CVS_FILE_NAME(cf));
			break;
		case CVS_FST_ADDED:
		case CVS_FST_MODIFIED:
			cvs_sendreq(root, CVS_REQ_ISMODIFIED,
			    CVS_FILE_NAME(cf));
			break;
		default:
			return (-1);
		}

		cvs_ent_free(entp);
		return (0);
	}

	snprintf(fpath, sizeof(fpath), "%s/%s/%s%s",
	    root->cr_dir, repo, fpath, RCS_FILE_EXT);

	rf = rcs_open(fpath, RCS_MODE_READ);
	if (rf == NULL) {
		cvs_ent_free(entp);
		return (-1);
	}

	rcs_close(rf);
	cvs_ent_free(entp);
	return (0);
}

#ifdef notyet
static void
cvs_getlog_print(const char *file, RCSFILE *rfp, u_int flags)
{
	char numbuf[64], datebuf[64], *sp;
	struct rcs_delta *rdp;

	cvs_printf("RCS file: %s\nWorking file: %s\n",
	    rfp->rf_path, file);
	cvs_printf("Working file: %s\n", (char *)NULL);
	cvs_printf("head: %s\nbranch:\nlocks:\naccess list:\n");
	cvs_printf("symbolic names:\nkeyword substitutions:\n");
	cvs_printf("total revisions: %u;\tselected revisions: %u\n", 1, 1);

	cvs_printf("description:\n");

	for (;;) {
		cvs_printf(CVS_GETLOG_REVSEP "\n");
		rcsnum_tostr(rdp->rd_num, numbuf, sizeof(numbuf));
		cvs_printf("revision %s\n", numbuf);
		cvs_printf("date: %d/%02d/%d %02d:%02d:%02d;  author: %s;"
		    "  state: %s;  lines:",
		    rdp->rd_date.tm_year, rdp->rd_date.tm_mon + 1,
		    rdp->rd_date.tm_mday, rdp->rd_date.tm_hour,
		    rdp->rd_date.tm_min, rdp->rd_date.tm_sec,
		    rdp->rd_author, rdp->rd_state);
	}

	cvs_printf(CVS_GETLOG_REVEND "\n");
}
#endif