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Diffstat (limited to '')
-rw-r--r-- | extra/edit/xdg.c | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/extra/edit/xdg.c b/extra/edit/xdg.c deleted file mode 100644 index b9015b2..0000000 --- a/extra/edit/xdg.c +++ /dev/null @@ -1,129 +0,0 @@ -/* Copyright (C) 2019, 2020 June McEnroe <june@causal.agency> - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <https://www.gnu.org/licenses/>. - * - * Additional permission under GNU GPL version 3 section 7: - * - * If you modify this Program, or any covered work, by linking or - * combining it with OpenSSL (or a modified version of that library), - * containing parts covered by the terms of the OpenSSL License and the - * original SSLeay license, the licensors of this Program grant you - * additional permission to convey the resulting work. Corresponding - * Source for a non-source form of such a combination shall include the - * source code for the parts of OpenSSL used as well as that of the - * covered work. - */ - -#include <err.h> -#include <errno.h> -#include <limits.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/stat.h> -#include <sysexits.h> - -#define SUBDIR "pounce" - -struct Base { - const char *envHome; - const char *envDirs; - const char *defHome; - const char *defDirs; -}; - -static const struct Base Config = { - .envHome = "XDG_CONFIG_HOME", - .envDirs = "XDG_CONFIG_DIRS", - .defHome = ".config", - .defDirs = "/etc/xdg", -}; - -static const struct Base Data = { - .envHome = "XDG_DATA_HOME", - .envDirs = "XDG_DATA_DIRS", - .defHome = ".local/share", - .defDirs = "/usr/local/share:/usr/share", -}; - -static char *basePath( - struct Base base, char *buf, size_t cap, const char *path, int i -) { - if (path[strspn(path, ".")] == '/') { - if (i > 0) return NULL; - snprintf(buf, cap, "%s", path); - return buf; - } - - if (i > 0) { - const char *dirs = getenv(base.envDirs); - if (!dirs) dirs = base.defDirs; - for (; i > 1; --i) { - dirs += strcspn(dirs, ":"); - dirs += (*dirs == ':'); - } - if (!*dirs) return NULL; - snprintf( - buf, cap, "%.*s/" SUBDIR "/%s", - (int)strcspn(dirs, ":"), dirs, path - ); - return buf; - } - - const char *home = getenv("HOME"); - const char *baseHome = getenv(base.envHome); - if (baseHome) { - snprintf(buf, cap, "%s/" SUBDIR "/%s", baseHome, path); - } else if (home) { - snprintf(buf, cap, "%s/%s/" SUBDIR "/%s", home, base.defHome, path); - } else { - errx(EX_USAGE, "HOME unset"); - } - return buf; -} - -char *configPath(char *buf, size_t cap, const char *path, int i) { - return basePath(Config, buf, cap, path, i); -} - -char *dataPath(char *buf, size_t cap, const char *path, int i) { - return basePath(Data, buf, cap, path, i); -} - -FILE *configOpen(const char *path, const char *mode) { - char buf[PATH_MAX]; - for (int i = 0; configPath(buf, sizeof(buf), path, i); ++i) { - FILE *file = fopen(buf, mode); - if (file) return file; - if (errno != ENOENT) warn("%s", buf); - } - warn("%s", configPath(buf, sizeof(buf), path, 0)); - return NULL; -} - -FILE *dataOpen(const char *path, const char *mode) { - char buf[PATH_MAX]; - for (int i = 0; dataPath(buf, sizeof(buf), path, i); ++i) { - FILE *file = fopen(buf, mode); - if (file) return file; - if (errno != ENOENT) warn("%s", buf); - } - if (mode[0] != 'r') { - int error = mkdir(dataPath(buf, sizeof(buf), "", 0), S_IRWXU); - if (error && errno != EEXIST) warn("%s", buf); - } - FILE *file = fopen(dataPath(buf, sizeof(buf), path, 0), mode); - if (!file) warn("%s", buf); - return file; -} |