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/* foundry-path.c
*
* Copyright 2024 Christian Hergert <chergert@redhat.com>
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of the
* License, or (at your option) any later version.
*
* This library 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
* Lesser 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 <http://www.gnu.org/licenses/>.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#include "config.h"
#include <errno.h>
#include <wordexp.h>
#include "foundry-path.h"
/**
* foundry_path_expand:
*
* This function will expand various "shell-like" features of the provided
* path using the POSIX wordexp(3) function. Command substitution will
* not be enabled, but path features such as ~user will be expanded.
*
* Returns: (transfer full): A newly allocated string containing the
* expansion. A copy of the input string upon failure to expand.
*/
char *
foundry_path_expand (const char *path)
{
wordexp_t state = { 0 };
char *replace_home = NULL;
char *ret = NULL;
char *escaped;
int r;
if (path == NULL)
return NULL;
/* Special case some path prefixes */
if (path[0] == '~')
{
if (path[1] == 0)
path = g_get_home_dir ();
else if (path[1] == G_DIR_SEPARATOR)
path = replace_home = g_strdup_printf ("%s%s", g_get_home_dir (), &path[1]);
}
else if (strncmp (path, "$HOME", 5) == 0)
{
if (path[5] == 0)
path = g_get_home_dir ();
else if (path[5] == G_DIR_SEPARATOR)
path = replace_home = g_strdup_printf ("%s%s", g_get_home_dir (), &path[5]);
}
escaped = g_shell_quote (path);
r = wordexp (escaped, &state, WRDE_NOCMD);
if (r == 0 && state.we_wordc > 0)
ret = g_strdup (state.we_wordv [0]);
wordfree (&state);
if (!g_path_is_absolute (ret))
{
g_autofree char *freeme = ret;
ret = g_build_filename (g_get_home_dir (), freeme, NULL);
}
g_free (replace_home);
g_free (escaped);
return ret;
}
/**
* foundry_path_collapse:
*
* This function will collapse a path that starts with the users home
* directory into a shorthand notation using ~/ for the home directory.
*
* If the path does not have the home directory as a prefix, it will
* simply return a copy of @path.
*
* Returns: (transfer full): A new path, possibly collapsed.
*/
char *
foundry_path_collapse (const char *path)
{
g_autofree char *expanded = NULL;
if (path == NULL)
return NULL;
expanded = foundry_path_expand (path);
if (g_str_has_prefix (expanded, g_get_home_dir ()))
return g_build_filename ("~",
expanded + strlen (g_get_home_dir ()),
NULL);
return g_steal_pointer (&expanded);
}
/**
* foundry_mkdir_with_parents:
* @path: a path to a directory to create
* @mode: the mode for the directory such as `0750`
*
* Similar to g_mkdir_with_parents() but runs on a dedicated thread.
*
* Returns: (transfer full): a [class@Dex.Future] that resolves to 0
* if successful, otherwise rejects with error.
*
* Deprecated: 1.1
*/
DexFuture *
foundry_mkdir_with_parents (const char *path,
int mode)
{
return dex_mkdir_with_parents (path, mode);
}
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