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/* SPDX-License-Identifier: GPL-3.0-or-later */
/*
* fscompare.c
*
* Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
*/
#include "difftool.h"
static struct option long_opts[] = {
{ "no-owner", no_argument, NULL, 'O' },
{ "no-permissions", no_argument, NULL, 'P' },
{ "timestamps", no_argument, NULL, 'T' },
{ "help", no_argument, NULL, 'h' },
{ "version", no_argument, NULL, 'V' },
};
static const char *short_opts = "OPThV";
static const char *usagestr =
"Usage: fscompare [OPTIONS...] <first> <second>\n"
"\n"
"Compare two directories, making sure that each contains the same entries.\n"
"If an entry is a directory, comparison recurses into the directory.\n"
"\n"
"Possible options:\n"
"\n"
" --no-owner, -O Do not compare file owners.\n"
" --no-permissions, -P Do not compare permission bits.\n"
"\n"
" --timestamps, -T Compare file timestamps.\n"
"\n"
" --help, -h Print help text and exit.\n"
" --version, -V Print version information and exit.\n"
"\n";
const char *first_path;
const char *second_path;
int compare_flags = 0;
static void process_options(int argc, char **argv)
{
int i;
for (;;) {
i = getopt_long(argc, argv, short_opts, long_opts, NULL);
if (i == -1)
break;
switch (i) {
case 'O':
compare_flags |= COMPARE_NO_OWNER;
break;
case 'P':
compare_flags |= COMPARE_NO_PERM;
break;
case 'T':
compare_flags |= COMPARE_TIMESTAMP;
break;
case 'h':
fputs(usagestr, stdout);
exit(EXIT_SUCCESS);
case 'V':
print_version();
exit(EXIT_SUCCESS);
default:
goto fail_arg;
}
}
if (optind >= argc) {
fputs("Missing arguments: first directory\n", stderr);
goto fail_arg;
}
first_path = argv[optind++];
if (optind >= argc) {
fputs("Missing arguments: second directory\n", stderr);
goto fail_arg;
}
second_path = argv[optind++];
if (optind < argc) {
fputs("Unknown extra arguments\n", stderr);
goto fail_arg;
}
return;
fail_arg:
fprintf(stderr, "Try `fscompare --help' for more information.\n");
exit(EXIT_FAILURE);
}
int main(int argc, char **argv)
{
int ret = EXIT_FAILURE;
fstree_t afs, bfs;
process_options(argc, argv);
if (fstree_init(&afs, 512, NULL))
return EXIT_FAILURE;
if (fstree_init(&bfs, 512, NULL))
goto out_afs;
if (fstree_from_dir(&afs, first_path, DIR_SCAN_KEEP_TIME))
goto out_bfs;
if (fstree_from_dir(&bfs, second_path, DIR_SCAN_KEEP_TIME))
goto out_bfs;
tree_node_sort_recursive(afs.root);
tree_node_sort_recursive(bfs.root);
if (node_compare(afs.root, bfs.root) == 0)
ret = EXIT_SUCCESS;
out_bfs:
fstree_cleanup(&bfs);
out_afs:
fstree_cleanup(&afs);
return ret;
}
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