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/* Copyright (C) 2022 Guarnerix Inc dba Liquidaty - All Rights Reserved
* Unauthorized copying of this file, via any medium is strictly prohibited
* Proprietary and confidential
* Written by Matt Wong <matt@guarnerix.com>
*/
/*
* remove a given file and its cache
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h> // unlink()
#include <errno.h>
#define ZSV_COMMAND_NO_OPTIONS
#define ZSV_COMMAND rm
#include "zsv_command.h"
#include <zsv/utils/dirs.h>
#include <zsv/utils/cache.h>
/**
* TO DO: add --orphaned option to remove all orphaned caches
*/
const char *zsv_rm_usage_msg[] = {
APPNAME ": remove a file and its related cache",
"",
"Usage: " APPNAME " [options] <filepath>",
"",
"Options:",
" -v,--verbose : verbose output",
#ifndef NO_STDIN
" -f,--force : do not prompt for confirmation",
#endif
" -k,--keep : do not remove related cache",
" -C,--cache : only remove related cache (not the file)",
NULL,
};
static int zsv_rm_usage(FILE *target) {
for (size_t j = 0; zsv_rm_usage_msg[j]; j++)
fprintf(target, "%s\n", zsv_rm_usage_msg[j]);
return target == stdout ? 0 : 1;
}
int ZSV_MAIN_NO_OPTIONS_FUNC(ZSV_COMMAND)(int argc, const char *argv[]) {
int err = 0;
if (argc > 1 && (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help")))
err = zsv_rm_usage(stdout);
else if (argc < 2)
err = zsv_rm_usage(stderr);
else {
const char *filepath = NULL;
char force = 0;
#ifdef NO_STDIN
force = 1;
#endif
char remove_cache = 1;
char remove_file = 1;
char verbose = 0;
for (int i = 1; !err && i < argc; i++) {
const char *arg = argv[i];
if (*arg == '-') {
if (!strcmp(arg, "-v") || !strcmp(arg, "--verbose"))
verbose = 1;
else if (!strcmp(arg, "-f") || !strcmp(arg, "--force"))
force = 1;
else if (!strcmp(arg, "-k") || !strcmp(arg, "--keep"))
remove_cache = 0;
else if (!strcmp(arg, "-C") || !strcmp(arg, "--cache"))
remove_file = 0;
else
err = zsv_printerr(1, "Unrecognized option: %s", arg);
} else if (!filepath)
filepath = arg;
else
err = zsv_printerr(1, "Unrecognized option: %s", arg);
}
if (!err && !filepath)
err = zsv_rm_usage(stderr);
else if (remove_file == 0 && remove_cache == 0)
err = fprintf(stderr, "Nothing to remove\n");
if (!err) {
char ok = 1;
#ifndef NO_STDIN
if (!force) {
ok = 0;
if (!remove_file)
printf("Are you sure you want to remove the entire cache for the file %s?\n", filepath);
else
printf("Are you sure you want to remove the file %s%s?\n", filepath,
remove_cache ? " and all of its cache contents" : "");
char buff[64];
if (fscanf(stdin, "%60s", buff) == 1 && strchr("Yy", buff[0]))
ok = 1;
}
#endif
if (ok) {
if (remove_file) {
if (verbose)
fprintf(stderr, "Removing %s", filepath);
err = unlink(filepath);
if (err) {
if (err == ENOENT && force)
err = 0;
else
perror(filepath);
}
}
if (!err) {
unsigned char *cache_dir = zsv_cache_path((const unsigned char *)filepath, NULL, 0);
if (!cache_dir)
err = zsv_printerr(ENOMEM, "Out of memory!");
else if (zsv_dir_exists((const char *)cache_dir)) {
err = zsv_remove_dir_recursive(cache_dir);
if (verbose) {
if (!err)
fprintf(stderr, "Removed cache %s", cache_dir);
}
}
free(cache_dir);
}
}
}
}
return err;
}
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