mirror of
https://github.com/mpv-player/mpv
synced 2024-12-24 15:52:25 +00:00
0922678fc4
HOME isn't set by default on Windows. But if the user does set it, prefer it by default. Enables stuff like --log-file=~/mpv.log to work, even if HOME isn't set.
365 lines
10 KiB
C
365 lines
10 KiB
C
/*
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* This file is part of mpv.
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*
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* Get path to config dir/file.
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*
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* mpv is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* mpv is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <assert.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdbool.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <errno.h>
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#include "config.h"
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#include "common/common.h"
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#include "common/global.h"
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#include "common/msg.h"
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#include "options/options.h"
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#include "options/path.h"
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#include "mpv_talloc.h"
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#include "osdep/io.h"
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#include "osdep/path.h"
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// In order of decreasing priority: the first has highest priority.
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static const mp_get_platform_path_cb path_resolvers[] = {
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#if HAVE_COCOA
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mp_get_platform_path_osx,
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#endif
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#if !defined(_WIN32) || defined(__CYGWIN__)
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mp_get_platform_path_unix,
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#endif
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#if HAVE_UWP
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mp_get_platform_path_uwp,
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#elif defined(_WIN32)
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mp_get_platform_path_win,
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#endif
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};
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// from highest (most preferred) to lowest priority
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static const char *const config_dirs[] = {
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"home",
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"old_home",
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"osxbundle",
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"global",
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};
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// Return a platform specific path using a path type as defined in osdep/path.h.
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// Keep in mind that the only way to free the return value is freeing talloc_ctx
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// (or its children), as this function can return a statically allocated string.
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static const char *mp_get_platform_path(void *talloc_ctx,
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struct mpv_global *global,
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const char *type)
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{
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assert(talloc_ctx);
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const char *force_configdir = getenv("MPV_HOME");
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if (global->opts->force_configdir && global->opts->force_configdir[0])
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force_configdir = global->opts->force_configdir;
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if (!global->opts->load_config)
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force_configdir = "";
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if (force_configdir) {
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for (int n = 0; n < MP_ARRAY_SIZE(config_dirs); n++) {
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if (strcmp(config_dirs[n], type) == 0)
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return (n == 0 && force_configdir[0]) ? force_configdir : NULL;
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}
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}
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for (int n = 0; n < MP_ARRAY_SIZE(path_resolvers); n++) {
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const char *path = path_resolvers[n](talloc_ctx, type);
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if (path && path[0])
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return path;
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}
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return NULL;
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}
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char *mp_find_user_config_file(void *talloc_ctx, struct mpv_global *global,
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const char *filename)
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{
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void *tmp = talloc_new(NULL);
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char *res = (char *)mp_get_platform_path(tmp, global, config_dirs[0]);
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if (res)
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res = mp_path_join(talloc_ctx, res, filename);
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talloc_free(tmp);
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MP_VERBOSE(global, "config path: '%s' -> '%s'\n", filename, res ? res : "-");
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return res;
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}
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static char **mp_find_all_config_files_limited(void *talloc_ctx,
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struct mpv_global *global,
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int max_files,
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const char *filename)
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{
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char **ret = talloc_array(talloc_ctx, char*, 2); // 2 preallocated
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int num_ret = 0;
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for (int i = 0; i < MP_ARRAY_SIZE(config_dirs); i++) {
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const char *dir = mp_get_platform_path(ret, global, config_dirs[i]);
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bstr s = bstr0(filename);
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while (dir && num_ret < max_files && s.len) {
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bstr fn;
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bstr_split_tok(s, "|", &fn, &s);
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char *file = mp_path_join_bstr(ret, bstr0(dir), fn);
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if (mp_path_exists(file)) {
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MP_VERBOSE(global, "config path: '%.*s' -> '%s'\n",
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BSTR_P(fn), file);
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MP_TARRAY_APPEND(NULL, ret, num_ret, file);
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} else {
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MP_VERBOSE(global, "config path: '%.*s' -/-> '%s'\n",
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BSTR_P(fn), file);
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}
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}
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}
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MP_TARRAY_GROW(NULL, ret, num_ret);
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ret[num_ret] = NULL;
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for (int n = 0; n < num_ret / 2; n++)
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MPSWAP(char*, ret[n], ret[num_ret - n - 1]);
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return ret;
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}
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char **mp_find_all_config_files(void *talloc_ctx, struct mpv_global *global,
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const char *filename)
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{
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return mp_find_all_config_files_limited(talloc_ctx, global, 64, filename);
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}
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char *mp_find_config_file(void *talloc_ctx, struct mpv_global *global,
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const char *filename)
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{
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char **l = mp_find_all_config_files_limited(talloc_ctx, global, 1, filename);
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char *r = l && l[0] ? talloc_steal(talloc_ctx, l[0]) : NULL;
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talloc_free(l);
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return r;
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}
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char *mp_get_user_path(void *talloc_ctx, struct mpv_global *global,
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const char *path)
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{
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if (!path)
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return NULL;
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char *res = NULL;
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bstr bpath = bstr0(path);
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if (bstr_eatstart0(&bpath, "~")) {
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// parse to "~" <prefix> "/" <rest>
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bstr prefix, rest;
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if (bstr_split_tok(bpath, "/", &prefix, &rest)) {
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const char *rest0 = rest.start; // ok in this case
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if (bstr_equals0(prefix, "~")) {
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res = mp_find_config_file(talloc_ctx, global, rest0);
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if (!res) {
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void *tmp = talloc_new(NULL);
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const char *p = mp_get_platform_path(tmp, global, "home");
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res = mp_path_join_bstr(talloc_ctx, bstr0(p), rest);
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talloc_free(tmp);
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}
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} else if (bstr_equals0(prefix, "")) {
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char *home = getenv("HOME");
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if (!home)
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home = getenv("USERPROFILE");
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res = mp_path_join_bstr(talloc_ctx, bstr0(home), rest);
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} else if (bstr_eatstart0(&prefix, "~")) {
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void *tmp = talloc_new(NULL);
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char type[80];
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snprintf(type, sizeof(type), "%.*s", BSTR_P(prefix));
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const char *p = mp_get_platform_path(tmp, global, type);
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res = mp_path_join_bstr(talloc_ctx, bstr0(p), rest);
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talloc_free(tmp);
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}
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}
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}
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if (!res)
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res = talloc_strdup(talloc_ctx, path);
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MP_VERBOSE(global, "user path: '%s' -> '%s'\n", path, res);
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return res;
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}
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char *mp_basename(const char *path)
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{
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char *s;
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#if HAVE_DOS_PATHS
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s = strrchr(path, '\\');
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if (s)
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path = s + 1;
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s = strrchr(path, ':');
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if (s)
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path = s + 1;
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#endif
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s = strrchr(path, '/');
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return s ? s + 1 : (char *)path;
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}
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struct bstr mp_dirname(const char *path)
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{
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struct bstr ret = {
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(uint8_t *)path, mp_basename(path) - path
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};
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if (ret.len == 0)
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return bstr0(".");
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return ret;
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}
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#if HAVE_DOS_PATHS
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static const char mp_path_separators[] = "\\/";
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#else
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static const char mp_path_separators[] = "/";
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#endif
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// Mutates path and removes a trailing '/' (or '\' on Windows)
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void mp_path_strip_trailing_separator(char *path)
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{
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size_t len = strlen(path);
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if (len > 0 && strchr(mp_path_separators, path[len - 1]))
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path[len - 1] = '\0';
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}
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char *mp_splitext(const char *path, bstr *root)
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{
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assert(path);
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const char *split = strrchr(path, '.');
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if (!split || !split[1] || strchr(split, '/'))
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return NULL;
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if (root)
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*root = (bstr){(char *)path, split - path};
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return (char *)split + 1;
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}
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char *mp_path_join_bstr(void *talloc_ctx, struct bstr p1, struct bstr p2)
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{
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bool test;
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if (p1.len == 0)
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return bstrdup0(talloc_ctx, p2);
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if (p2.len == 0)
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return bstrdup0(talloc_ctx, p1);
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#if HAVE_DOS_PATHS
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test = (p2.len >= 2 && p2.start[1] == ':')
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|| p2.start[0] == '\\' || p2.start[0] == '/';
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#else
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test = p2.start[0] == '/';
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#endif
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if (test)
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return bstrdup0(talloc_ctx, p2); // absolute path
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bool have_separator;
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int endchar1 = p1.start[p1.len - 1];
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#if HAVE_DOS_PATHS
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have_separator = endchar1 == '/' || endchar1 == '\\'
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|| (p1.len == 2 && endchar1 == ':'); // "X:" only
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#else
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have_separator = endchar1 == '/';
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#endif
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return talloc_asprintf(talloc_ctx, "%.*s%s%.*s", BSTR_P(p1),
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have_separator ? "" : "/", BSTR_P(p2));
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}
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char *mp_path_join(void *talloc_ctx, const char *p1, const char *p2)
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{
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return mp_path_join_bstr(talloc_ctx, bstr0(p1), bstr0(p2));
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}
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char *mp_getcwd(void *talloc_ctx)
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{
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char *e_wd = getenv("PWD");
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if (e_wd)
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return talloc_strdup(talloc_ctx, e_wd);
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char *wd = talloc_array(talloc_ctx, char, 20);
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while (getcwd(wd, talloc_get_size(wd)) == NULL) {
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if (errno != ERANGE) {
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talloc_free(wd);
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return NULL;
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}
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wd = talloc_realloc(talloc_ctx, wd, char, talloc_get_size(wd) * 2);
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}
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return wd;
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}
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bool mp_path_exists(const char *path)
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{
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struct stat st;
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return path && stat(path, &st) == 0;
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}
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bool mp_path_isdir(const char *path)
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{
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struct stat st;
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return stat(path, &st) == 0 && S_ISDIR(st.st_mode);
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}
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// Return false if it's considered a normal local filesystem path.
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bool mp_is_url(bstr path)
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{
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int proto = bstr_find0(path, "://");
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if (proto < 1)
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return false;
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// The protocol part must be alphanumeric, otherwise it's not an URL.
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for (int i = 0; i < proto; i++) {
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unsigned char c = path.start[i];
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if (!(c >= 'a' && c <= 'z') && !(c >= 'A' && c <= 'Z') &&
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!(c >= '0' && c <= '9') && c != '_')
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return false;
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}
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return true;
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}
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// Return the protocol part of path, e.g. "http" if path is "http://...".
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// On success, out_url (if not NULL) is set to the part after the "://".
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bstr mp_split_proto(bstr path, bstr *out_url)
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{
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if (!mp_is_url(path))
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return (bstr){0};
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bstr r;
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bstr_split_tok(path, "://", &r, out_url ? out_url : &(bstr){0});
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return r;
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}
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void mp_mkdirp(const char *dir)
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{
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char *path = talloc_strdup(NULL, dir);
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char *cdir = path + 1;
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while (cdir) {
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cdir = strchr(cdir, '/');
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if (cdir)
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*cdir = 0;
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mkdir(path, 0700);
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if (cdir)
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*cdir++ = '/';
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}
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talloc_free(path);
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}
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void mp_mk_config_dir(struct mpv_global *global, char *subdir)
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{
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char *dir = mp_find_user_config_file(NULL, global, subdir);
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if (dir)
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mp_mkdirp(dir);
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talloc_free(dir);
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}
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