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cvsps.c
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/*
* Copyright 2001, 2002, 2003 David Mansfield and Cobite, Inc.
* See COPYING file for license information
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include <unistd.h>
#include <search.h>
#include <time.h>
#include <ctype.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <fcntl.h>
#include <regex.h>
#include <sys/wait.h> /* for WEXITSTATUS - see system(3) */
#include <cbtcommon/hash.h>
#include <cbtcommon/list.h>
#include <cbtcommon/text_util.h>
#include <cbtcommon/debug.h>
#include <cbtcommon/rcsid.h>
#include "cache.h"
#include "cvsps_types.h"
#include "cvsps.h"
#include "util.h"
#include "stats.h"
#include "cap.h"
#include "cvs_direct.h"
#include "list_sort.h"
RCSID("$Id: cvsps.c,v 4.108 2005/06/05 22:52:43 david Exp $");
#define CVS_LOG_BOUNDARY "----------------------------\n"
#define CVS_FILE_BOUNDARY "=============================================================================\n"
enum
{
NEED_RCS_FILE,
NEED_WORKING_FILE,
NEED_SYMS,
NEED_EOS,
NEED_START_LOG,
NEED_REVISION,
NEED_DATE_AUTHOR_STATE,
NEED_EOM
};
/* true globals */
struct hash_table * file_hash;
CvsServerCtx * cvs_direct_ctx;
char root_path[PATH_MAX];
char repository_path[PATH_MAX];
const char * tag_flag_descr[] = {
"",
"**FUNKY**",
"**INVALID**",
"**INVALID**"
};
const char * fnk_descr[] = {
"",
"FNK_SHOW_SOME",
"FNK_SHOW_ALL",
"FNK_HIDE_ALL",
"FNK_HIDE_SOME"
};
/* static globals */
static int ps_counter;
static void * ps_tree;
static struct hash_table * global_symbols;
static char strip_path[PATH_MAX];
static int strip_path_len;
static time_t cache_date;
static int update_cache;
static int ignore_cache;
static int do_write_cache;
static int statistics;
static const char * test_log_file;
static struct hash_table * branch_heads;
static struct list_head all_patch_sets;
static struct list_head collisions;
static struct hash_table * branches;
/* settable via options */
static int timestamp_fuzz_factor = 300;
static int do_diff;
static const char * restrict_author;
static int have_restrict_log;
static regex_t restrict_log;
static int have_restrict_file;
static regex_t restrict_file;
static time_t restrict_date_start;
static time_t restrict_date_end;
static const char * restrict_branch;
static struct list_head show_patch_set_ranges;
static int summary_first;
static const char * norc = "";
static const char * patch_set_dir;
static const char * restrict_tag_start;
static const char * restrict_tag_end;
static int restrict_tag_ps_start;
static int restrict_tag_ps_end = INT_MAX;
static const char * diff_opts;
static int bkcvs;
static int no_rlog;
static int cvs_direct;
static int compress;
static char compress_arg[8];
static int track_branch_ancestry;
static void check_norc(int, char *[]);
static int parse_args(int, char *[]);
static int parse_rc();
static void load_from_cvs();
static void init_paths();
static CvsFile * build_file_by_name(const char *);
static CvsFile * parse_rcs_file(const char *);
static CvsFile * parse_working_file(const char *);
static CvsFileRevision * parse_revision(CvsFile * file, char * rev_str);
static void assign_pre_revision(PatchSetMember *, CvsFileRevision * rev);
static void check_print_patch_set(PatchSet *);
static void print_patch_set(PatchSet *);
static void assign_patchset_id(PatchSet *);
static int compare_rev_strings(const char *, const char *);
static int compare_patch_sets_by_members(const PatchSet * ps1, const PatchSet * ps2);
static int compare_patch_sets_bk(const void *, const void *);
static int compare_patch_sets(const void *, const void *);
static int compare_patch_sets_bytime_list(struct list_head *, struct list_head *);
static int compare_patch_sets_bytime(const PatchSet *, const PatchSet *);
static int is_revision_metadata(const char *);
static int patch_set_member_regex(PatchSet * ps, regex_t * reg);
static int patch_set_affects_branch(PatchSet *, const char *);
static void do_cvs_diff(PatchSet *);
static PatchSet * create_patch_set();
static PatchSetRange * create_patch_set_range();
static void parse_sym(CvsFile *, char *);
static void resolve_global_symbols();
static int revision_affects_branch(CvsFileRevision *, const char *);
static int is_vendor_branch(const char *);
static void set_psm_initial(PatchSetMember * psm);
static int check_rev_funk(PatchSet *, CvsFileRevision *);
static CvsFileRevision * rev_follow_branch(CvsFileRevision *, const char *);
static int before_tag(CvsFileRevision * rev, const char * tag);
static void determine_branch_ancestor(PatchSet * ps, PatchSet * head_ps);
static void handle_collisions();
static Branch * create_branch(const char * name) ;
static void find_branch_points(PatchSet * ps);
int main(int argc, char *argv[])
{
debuglvl = DEBUG_APPERROR|DEBUG_SYSERROR|DEBUG_APPMSG1;
INIT_LIST_HEAD(&show_patch_set_ranges);
/*
* we want to parse the rc first, so command line can override it
* but also, --norc should stop the rc from being processed, so
* we look for --norc explicitly first. Note: --norc in the rc
* file itself will prevent the cvs rc file from being used.
*/
check_norc(argc, argv);
if (strlen(norc) == 0 && parse_rc() < 0)
exit(1);
if (parse_args(argc, argv) < 0)
exit(1);
if (diff_opts && !cvs_direct && do_diff)
{
debug(DEBUG_APPMSG1, "\nWARNING: diff options are not supported by 'cvs rdiff'");
debug(DEBUG_APPMSG1, " which is usually used to create diffs. 'cvs diff'");
debug(DEBUG_APPMSG1, " will be used instead, but the resulting patches ");
debug(DEBUG_APPMSG1, " will need to be applied using the '-p0' option");
debug(DEBUG_APPMSG1, " to patch(1) (in the working directory), ");
debug(DEBUG_APPMSG1, " instead of '-p1'\n");
}
file_hash = create_hash_table(1023);
global_symbols = create_hash_table(111);
branch_heads = create_hash_table(1023);
branches = create_hash_table(1023);
INIT_LIST_HEAD(&all_patch_sets);
INIT_LIST_HEAD(&collisions);
/* this parses some of the CVS/ files, and initializes
* the repository_path and other variables
*/
init_paths();
if (!ignore_cache)
{
int save_fuzz_factor = timestamp_fuzz_factor;
/* the timestamp fuzz should only be in effect when loading from
* CVS, not re-fuzzed when loading from cache. This is a hack
* working around bad use of global variables
*/
timestamp_fuzz_factor = 0;
if ((cache_date = read_cache()) < 0)
update_cache = 1;
timestamp_fuzz_factor = save_fuzz_factor;
}
if (cvs_direct && (do_diff || (update_cache && !test_log_file)))
cvs_direct_ctx = open_cvs_server(root_path, compress);
if (update_cache)
{
load_from_cvs();
do_write_cache = 1;
}
//XXX
//handle_collisions();
list_sort(&all_patch_sets, compare_patch_sets_bytime_list);
ps_counter = 0;
walk_all_patch_sets(assign_patchset_id);
handle_collisions();
resolve_global_symbols();
if (do_write_cache)
write_cache(cache_date);
if (statistics)
print_statistics(ps_tree);
/* check that the '-r' symbols (if specified) were resolved */
if (restrict_tag_start && restrict_tag_ps_start == 0 &&
strcmp(restrict_tag_start, "#CVSPS_EPOCH") != 0)
{
debug(DEBUG_APPERROR, "symbol given with -r: %s: not found", restrict_tag_start);
exit(1);
}
if (restrict_tag_end && restrict_tag_ps_end == INT_MAX)
{
debug(DEBUG_APPERROR, "symbol given with second -r: %s: not found", restrict_tag_end);
exit(1);
}
walk_all_patch_sets(check_print_patch_set);
if (summary_first++)
walk_all_patch_sets(check_print_patch_set);
if (cvs_direct_ctx)
close_cvs_server(cvs_direct_ctx);
exit(0);
}
static void load_from_cvs()
{
FILE * cvsfp;
char buff[BUFSIZ];
int state = NEED_RCS_FILE;
CvsFile * file = NULL;
PatchSetMember * psm = NULL;
char datebuff[26];
char authbuff[AUTH_STR_MAX];
int logbufflen = LOG_STR_MAX + 1;
char * logbuff = malloc(logbufflen);
int loglen = 0;
int have_log = 0;
char cmd[BUFSIZ];
char date_str[64];
char use_rep_buff[PATH_MAX];
char * ltype;
if (logbuff == NULL)
{
debug(DEBUG_SYSERROR, "could not malloc %d bytes for logbuff in load_from_cvs", logbufflen);
exit(1);
}
if (!no_rlog && !test_log_file && cvs_check_cap(CAP_HAVE_RLOG))
{
ltype = "rlog";
snprintf(use_rep_buff, PATH_MAX, "%s", repository_path);
}
else
{
ltype = "log";
use_rep_buff[0] = 0;
}
if (cache_date > 0)
{
struct tm * tm = gmtime(&cache_date);
strftime(date_str, 64, "%d %b %Y %H:%M:%S +0000", tm);
/* this command asks for logs using two different date
* arguments, separated by ';' (see man rlog). The first
* gets all revisions more recent than date, the second
* gets a single revision no later than date, which combined
* get us all revisions that have occurred since last update
* and overlaps what we had before by exactly one revision,
* which is necessary to fill in the pre_rev stuff for a
* PatchSetMember
*/
snprintf(cmd, BUFSIZ, "cvs %s %s -q %s -d '%s<;%s' %s", compress_arg, norc, ltype, date_str, date_str, use_rep_buff);
}
else
{
date_str[0] = 0;
snprintf(cmd, BUFSIZ, "cvs %s %s -q %s %s", compress_arg, norc, ltype, use_rep_buff);
}
debug(DEBUG_STATUS, "******* USING CMD %s", cmd);
cache_date = time(NULL);
/* FIXME: this is ugly, need to virtualize the accesses away from here */
if (test_log_file)
cvsfp = fopen(test_log_file, "r");
else if (cvs_direct_ctx)
cvsfp = cvs_rlog_open(cvs_direct_ctx, repository_path, date_str);
else
cvsfp = popen(cmd, "r");
if (!cvsfp)
{
debug(DEBUG_SYSERROR, "can't open cvs pipe using command %s", cmd);
exit(1);
}
for (;;)
{
char * tst;
if (cvs_direct_ctx)
tst = cvs_rlog_fgets(buff, BUFSIZ, cvs_direct_ctx);
else
tst = fgets(buff, BUFSIZ, cvsfp);
if (!tst)
break;
debug(DEBUG_STATUS, "state: %d read line:%s", state, buff);
switch(state)
{
case NEED_RCS_FILE:
if (strncmp(buff, "RCS file", 8) == 0) {
if ((file = parse_rcs_file(buff)) != NULL)
state = NEED_SYMS;
else
state = NEED_WORKING_FILE;
}
break;
case NEED_WORKING_FILE:
if (strncmp(buff, "Working file", 12) == 0) {
if ((file = parse_working_file(buff)))
state = NEED_SYMS;
else
state = NEED_RCS_FILE;
break;
} else {
// Working file come just after RCS file. So reset state if it was not found
state = NEED_RCS_FILE;
}
break;
case NEED_SYMS:
if (strncmp(buff, "symbolic names:", 15) == 0)
state = NEED_EOS;
break;
case NEED_EOS:
if (!isspace(buff[0]))
{
/* see cvsps_types.h for commentary on have_branches */
file->have_branches = 1;
state = NEED_START_LOG;
}
else
parse_sym(file, buff);
break;
case NEED_START_LOG:
if (strcmp(buff, CVS_LOG_BOUNDARY) == 0)
state = NEED_REVISION;
break;
case NEED_REVISION:
if (strncmp(buff, "revision", 8) == 0)
{
char new_rev[REV_STR_MAX];
CvsFileRevision * rev;
strcpy(new_rev, buff + 9);
chop(new_rev);
/*
* rev may already exist (think cvsps -u), in which
* case parse_revision is a hash lookup
*/
rev = parse_revision(file, new_rev);
/*
* in the simple case, we are copying rev to psm->pre_rev
* (psm refers to last patch set processed at this point)
* since generally speaking the log is reverse chronological.
* This breaks down slightly when branches are introduced
*/
assign_pre_revision(psm, rev);
/*
* if this is a new revision, it will have no post_psm associated.
* otherwise we are (probably?) hitting the overlap in cvsps -u
*/
if (!rev->post_psm)
{
psm = rev->post_psm = create_patch_set_member();
psm->post_rev = rev;
psm->file = file;
state = NEED_DATE_AUTHOR_STATE;
}
else
{
/* we hit this in cvsps -u mode, we are now up-to-date
* w.r.t this particular file. skip all of the rest
* of the info (revs and logs) until we hit the next file
*/
psm = NULL;
state = NEED_EOM;
}
}
break;
case NEED_DATE_AUTHOR_STATE:
if (strncmp(buff, "date:", 5) == 0)
{
char * p;
strncpy(datebuff, buff + 6, sizeof(datebuff));
datebuff[sizeof(datebuff)-1] = 0;
strcpy(authbuff, "unknown");
p = strstr(buff, "author: ");
if (p)
{
char * op;
p += 8;
op = strchr(p, ';');
if (op)
{
strzncpy(authbuff, p, op - p + 1);
}
}
/* read the 'state' tag to see if this is a dead revision */
p = strstr(buff, "state: ");
if (p)
{
char * op;
p += 7;
op = strchr(p, ';');
if (op)
if (strncmp(p, "dead", MIN(4, op - p)) == 0)
psm->post_rev->dead = 1;
}
state = NEED_EOM;
}
break;
case NEED_EOM:
if (strcmp(buff, CVS_LOG_BOUNDARY) == 0)
{
if (psm)
{
PatchSet * ps = get_patch_set(datebuff, logbuff, authbuff, psm->post_rev->branch, psm);
patch_set_add_member(ps, psm);
}
logbuff[0] = 0;
loglen = 0;
have_log = 0;
state = NEED_REVISION;
}
else if (strcmp(buff, CVS_FILE_BOUNDARY) == 0)
{
if (psm)
{
PatchSet * ps = get_patch_set(datebuff, logbuff, authbuff, psm->post_rev->branch, psm);
patch_set_add_member(ps, psm);
assign_pre_revision(psm, NULL);
}
logbuff[0] = 0;
loglen = 0;
have_log = 0;
psm = NULL;
file = NULL;
state = NEED_RCS_FILE;
}
else
{
/* other "blahblah: information;" messages can
* follow the stuff we pay attention to
*/
if (have_log || !is_revision_metadata(buff))
{
/* If the log buffer is full, try to reallocate more. */
if (loglen < logbufflen)
{
int len = strlen(buff);
if (len >= logbufflen - loglen)
{
debug(DEBUG_STATUS, "reallocating logbufflen to %d bytes for file %s", logbufflen, file->filename);
logbufflen += (len >= LOG_STR_MAX ? (len+1) : LOG_STR_MAX);
char * newlogbuff = realloc(logbuff, logbufflen);
if (newlogbuff == NULL)
{
debug(DEBUG_SYSERROR, "could not realloc %d bytes for logbuff in load_from_cvs", logbufflen);
exit(1);
}
logbuff = newlogbuff;
}
debug(DEBUG_STATUS, "appending %s to log", buff);
memcpy(logbuff + loglen, buff, len);
loglen += len;
logbuff[loglen] = 0;
have_log = 1;
}
}
else
{
debug(DEBUG_STATUS, "ignoring unhandled info %s", buff);
}
}
break;
}
}
if (state == NEED_SYMS)
{
debug(DEBUG_APPERROR, "Error: 'symbolic names' not found in log output.");
debug(DEBUG_APPERROR, " Perhaps you should try running with --norc");
exit(1);
}
if (state != NEED_RCS_FILE)
{
debug(DEBUG_APPERROR, "Error: Log file parsing error. (%d) Use -v to debug", state);
exit(1);
}
if (test_log_file)
{
fclose(cvsfp);
}
else if (cvs_direct_ctx)
{
cvs_rlog_close(cvs_direct_ctx);
}
else
{
if (pclose(cvsfp) < 0)
{
debug(DEBUG_APPERROR, "cvs rlog command exited with error. aborting");
exit(1);
}
}
}
static int usage(const char * str1, const char * str2)
{
if (str1)
debug(DEBUG_APPERROR, "\nbad usage: %s %s\n", str1, str2);
debug(DEBUG_APPERROR, "Usage: cvsps [-h] [-x] [-u] [-z <fuzz>] [-g] [-s <range>[,<range>]] ");
debug(DEBUG_APPERROR, " [-a <author>] [-f <file>] [-d <date1> [-d <date2>]] ");
debug(DEBUG_APPERROR, " [-b <branch>] [-l <regex>] [-r <tag> [-r <tag>]] ");
debug(DEBUG_APPERROR, " [-p <directory>] [-v] [-t] [--norc] [--summary-first]");
debug(DEBUG_APPERROR, " [--test-log <captured cvs log file>] [--bkcvs]");
debug(DEBUG_APPERROR, " [--no-rlog] [--diff-opts <option string>] [--cvs-direct]");
debug(DEBUG_APPERROR, " [--debuglvl <bitmask>] [-Z <compression>] [--root <cvsroot>]");
debug(DEBUG_APPERROR, " [-q] [-A] [<repository>]");
debug(DEBUG_APPERROR, "");
debug(DEBUG_APPERROR, "Where:");
debug(DEBUG_APPERROR, " -h display this informative message");
debug(DEBUG_APPERROR, " -x ignore (and rebuild) cvsps.cache file");
debug(DEBUG_APPERROR, " -u update cvsps.cache file");
debug(DEBUG_APPERROR, " -z <fuzz> set the timestamp fuzz factor for identifying patch sets");
debug(DEBUG_APPERROR, " -g generate diffs of the selected patch sets");
debug(DEBUG_APPERROR, " -s <patch set>[-[<patch set>]][,<patch set>...] restrict patch sets by id");
debug(DEBUG_APPERROR, " -a <author> restrict output to patch sets created by author");
debug(DEBUG_APPERROR, " -f <file> restrict output to patch sets involving file");
debug(DEBUG_APPERROR, " -d <date1> -d <date2> if just one date specified, show");
debug(DEBUG_APPERROR, " revisions newer than date1. If two dates specified,");
debug(DEBUG_APPERROR, " show revisions between two dates.");
debug(DEBUG_APPERROR, " -b <branch> restrict output to patch sets affecting history of branch");
debug(DEBUG_APPERROR, " -l <regex> restrict output to patch sets matching <regex> in log message");
debug(DEBUG_APPERROR, " -r <tag1> -r <tag2> if just one tag specified, show");
debug(DEBUG_APPERROR, " revisions since tag1. If two tags specified, show");
debug(DEBUG_APPERROR, " revisions between the two tags.");
debug(DEBUG_APPERROR, " -p <directory> output patch sets to individual files in <directory>");
debug(DEBUG_APPERROR, " -v show very verbose parsing messages");
debug(DEBUG_APPERROR, " -t show some brief memory usage statistics");
debug(DEBUG_APPERROR, " --norc when invoking cvs, ignore the .cvsrc file");
debug(DEBUG_APPERROR, " --summary-first when multiple patch sets are shown, put all summaries first");
debug(DEBUG_APPERROR, " --test-log <captured cvs log> supply a captured cvs log for testing");
debug(DEBUG_APPERROR, " --diff-opts <option string> supply special set of options to diff");
debug(DEBUG_APPERROR, " --bkcvs special hack for parsing the BK -> CVS log format");
debug(DEBUG_APPERROR, " --no-rlog disable rlog (it's faulty in some setups)");
debug(DEBUG_APPERROR, " --cvs-direct (--no-cvs-direct) enable (disable) built-in cvs client code");
debug(DEBUG_APPERROR, " --debuglvl <bitmask> enable various debug channels.");
debug(DEBUG_APPERROR, " -Z <compression> A value 1-9 which specifies amount of compression");
debug(DEBUG_APPERROR, " --root <cvsroot> specify cvsroot. overrides env. and working directory (cvs-direct only)");
debug(DEBUG_APPERROR, " -q be quiet about warnings");
debug(DEBUG_APPERROR, " -A track and report branch ancestry");
debug(DEBUG_APPERROR, " <repository> apply cvsps to repository. overrides working directory");
debug(DEBUG_APPERROR, "\ncvsps version %s\n", PACKAGE_VERSION);
return -1;
}
static int parse_args(int argc, char *argv[])
{
int i = 1;
while (i < argc)
{
if (strcmp(argv[i], "-z") == 0)
{
if (++i >= argc)
return usage("argument to -z missing", "");
timestamp_fuzz_factor = atoi(argv[i++]);
continue;
}
if (strcmp(argv[i], "-g") == 0)
{
do_diff = 1;
i++;
continue;
}
if (strcmp(argv[i], "-s") == 0)
{
PatchSetRange * range;
char * min_str, * max_str;
if (++i >= argc)
return usage("argument to -s missing", "");
min_str = strtok(argv[i++], ",");
do
{
range = create_patch_set_range();
max_str = strrchr(min_str, '-');
if (max_str)
*max_str++ = '\0';
else
max_str = min_str;
range->min_counter = atoi(min_str);
if (*max_str)
range->max_counter = atoi(max_str);
else
range->max_counter = INT_MAX;
list_add(&range->link, show_patch_set_ranges.prev);
}
while ((min_str = strtok(NULL, ",")));
continue;
}
if (strcmp(argv[i], "-a") == 0)
{
if (++i >= argc)
return usage("argument to -a missing", "");
restrict_author = argv[i++];
continue;
}
if (strcmp(argv[i], "-l") == 0)
{
int err;
if (++i >= argc)
return usage("argument to -l missing", "");
if ((err = regcomp(&restrict_log, argv[i++], REG_EXTENDED|REG_NOSUB)) != 0)
{
char errbuf[256];
regerror(err, &restrict_log, errbuf, 256);
return usage("bad regex to -l", errbuf);
}
have_restrict_log = 1;
continue;
}
if (strcmp(argv[i], "-f") == 0)
{
int err;
if (++i >= argc)
return usage("argument to -f missing", "");
if ((err = regcomp(&restrict_file, argv[i++], REG_EXTENDED|REG_NOSUB)) != 0)
{
char errbuf[256];
regerror(err, &restrict_file, errbuf, 256);
return usage("bad regex to -f", errbuf);
}
have_restrict_file = 1;
continue;
}
if (strcmp(argv[i], "-d") == 0)
{
time_t *pt;
if (++i >= argc)
return usage("argument to -d missing", "");
pt = (restrict_date_start == 0) ? &restrict_date_start : &restrict_date_end;
convert_date(pt, argv[i++]);
continue;
}
if (strcmp(argv[i], "-r") == 0)
{
if (++i >= argc)
return usage("argument to -r missing", "");
if (restrict_tag_start)
restrict_tag_end = argv[i];
else
restrict_tag_start = argv[i];
i++;
continue;
}
if (strcmp(argv[i], "-u") == 0)
{
update_cache = 1;
i++;
continue;
}
if (strcmp(argv[i], "-x") == 0)
{
ignore_cache = 1;
update_cache = 1;
i++;
continue;
}
if (strcmp(argv[i], "-b") == 0)
{
if (++i >= argc)
return usage("argument to -b missing", "");
restrict_branch = argv[i++];
/* Warn if the user tries to use TRUNK. Should eventually
* go away as TRUNK may be a valid branch within CVS
*/
if (strcmp(restrict_branch, "TRUNK") == 0)
debug(DEBUG_APPMSG1, "WARNING: The HEAD branch of CVS is called HEAD, not TRUNK");
continue;
}
if (strcmp(argv[i], "-p") == 0)
{
if (++i >= argc)
return usage("argument to -p missing", "");
patch_set_dir = argv[i++];
continue;
}
if (strcmp(argv[i], "-v") == 0)
{
debuglvl = ~0;
i++;
continue;
}
if (strcmp(argv[i], "-t") == 0)
{
statistics = 1;
i++;
continue;
}
if (strcmp(argv[i], "--summary-first") == 0)
{
summary_first = 1;
i++;
continue;
}
if (strcmp(argv[i], "-h") == 0)
return usage(NULL, NULL);
/* see special handling of --norc in main */
if (strcmp(argv[i], "--norc") == 0)
{
norc = "-f";
i++;
continue;
}
if (strcmp(argv[i], "--test-log") == 0)
{
if (++i >= argc)
return usage("argument to --test-log missing", "");
test_log_file = argv[i++];
continue;
}
if (strcmp(argv[i], "--diff-opts") == 0)
{
if (++i >= argc)
return usage("argument to --diff-opts missing", "");
/* allow diff_opts to be turned off by making empty string
* into NULL
*/
if (!strlen(argv[i]))
diff_opts = NULL;
else
diff_opts = argv[i];
i++;
continue;
}
if (strcmp(argv[i], "--bkcvs") == 0)
{
bkcvs = 1;
i++;
continue;
}
if (strcmp(argv[i], "--no-rlog") == 0)
{
no_rlog = 1;
i++;
continue;
}
if (strcmp(argv[i], "--cvs-direct") == 0)
{
cvs_direct = 1;
i++;
continue;
}
if (strcmp(argv[i], "--no-cvs-direct") == 0)
{
cvs_direct = 0;
i++;
continue;
}
if (strcmp(argv[i], "--debuglvl") == 0)
{
if (++i >= argc)
return usage("argument to --debuglvl missing", "");
debuglvl = atoi(argv[i++]);
continue;
}
if (strcmp(argv[i], "-Z") == 0)
{
if (++i >= argc)
return usage("argument to -Z", "");
compress = atoi(argv[i++]);
if (compress < 0 || compress > 9)
return usage("-Z level must be between 1 and 9 inclusive (0 disables compression)", argv[i-1]);
if (compress == 0)
compress_arg[0] = 0;
else
snprintf(compress_arg, 8, "-z%d", compress);
continue;
}
if (strcmp(argv[i], "--root") == 0)
{
if (++i >= argc)
return usage("argument to --root missing", "");
strcpy(root_path, argv[i++]);
continue;
}
if (strcmp(argv[i], "-q") == 0)
{
debuglvl &= ~DEBUG_APPMSG1;
i++;
continue;
}
if (strcmp(argv[i], "-A") == 0)
{
track_branch_ancestry = 1;
i++;
continue;
}
if (argv[i][0] == '-')
return usage("invalid argument", argv[i]);
strcpy(repository_path, argv[i++]);
}
return 0;
}
static int parse_rc()
{
char rcfile[PATH_MAX];
FILE * fp;
snprintf(rcfile, PATH_MAX, "%s/cvspsrc", get_cvsps_dir());
if ((fp = fopen(rcfile, "r")))
{
char buff[BUFSIZ];
while (fgets(buff, BUFSIZ, fp))
{
char * argv[3], *p;
int argc = 2;
chop(buff);
argv[0] = "garbage";
p = strchr(buff, ' ');
if (p)
{
*p++ = '\0';
argv[2] = xstrdup(p);
argc = 3;
}
argv[1] = xstrdup(buff);
if (parse_args(argc, argv) < 0)
return -1;
}
fclose(fp);
}
return 0;
}
static void init_paths()
{
FILE * fp;
char * p;
int len;
/* determine the CVSROOT. precedence:
* 1) command line
* 2) working directory (if present)
* 3) environment variable CVSROOT
*/
if (!root_path[0])
{
if (!(fp = fopen("CVS/Root", "r")))
{
const char * e;
debug(DEBUG_STATUS, "Can't open CVS/Root");
e = getenv("CVSROOT");
if (!e)
{