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85 lines
3.4 KiB
C
85 lines
3.4 KiB
C
/** \file path.h
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Directory utilities. This library contains functions for locating
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configuration directories, for testing if a command with a given
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name can be found in the PATH, and various other path-related
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issues.
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*/
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#ifndef FISH_PATH_H
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#define FISH_PATH_H
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#include "env.h"
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/**
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Return value for path_cdpath_get when locatied a rotten symlink
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*/
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#define EROTTEN 1
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/**
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Returns the user configuration directory for fish. If the directory
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or one of it's parents doesn't exist, they are first created.
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\param path The directory as an out param
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\return whether the directory was returned successfully
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*/
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bool path_get_config(wcstring &path);
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/**
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Finds the full path of an executable. Returns YES if successful.
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\param cmd The name of the executable.
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\param output_or_NULL If non-NULL, store the full path.
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\param vars The environment variables snapshot to use
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\return 0 if the command can not be found, the path of the command otherwise. The result should be freed with free().
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*/
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bool path_get_path(const wcstring &cmd,
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wcstring *output_or_NULL,
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const env_vars_snapshot_t &vars = env_vars_snapshot_t::current());
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/**
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Returns the full path of the specified directory, using the CDPATH
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variable as a list of base directories for relative paths. The
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returned string is allocated using halloc and the specified
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context.
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If no valid path is found, null is returned and errno is set to
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ENOTDIR if at least one such path was found, but it did not point
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to a directory, EROTTEN if a arotten symbolic link was found, or
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ENOENT if no file of the specified name was found. If both a rotten
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symlink and a file are found, it is undefined which error status
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will be returned.
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\param dir The name of the directory.
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\param out_or_NULL If non-NULL, return the path to the resolved directory
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\param wd The working directory, or NULL to use the default. The working directory should have a slash appended at the end.
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\param vars The environment variable snapshot to use (for the CDPATH variable)
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\return 0 if the command can not be found, the path of the command otherwise. The path should be free'd with free().
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*/
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bool path_get_cdpath(const wcstring &dir,
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wcstring *out_or_NULL,
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const wchar_t *wd = NULL,
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const env_vars_snapshot_t &vars = env_vars_snapshot_t::current());
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/** Returns whether the path can be used for an implicit cd command; if so, also returns the path by reference (if desired). This requires it to start with one of the allowed prefixes (., .., ~) and resolve to a directory. */
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bool path_can_be_implicit_cd(const wcstring &path,
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wcstring *out_path = NULL,
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const wchar_t *wd = NULL,
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const env_vars_snapshot_t &vars = env_vars_snapshot_t::current());
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/**
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Remove double slashes and trailing slashes from a path,
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e.g. transform foo//bar/ into foo/bar. The string is modified in-place.
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*/
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void path_make_canonical(wcstring &path);
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/** Check if two paths are equivalent, which means to ignore runs of multiple slashes (or trailing slashes) */
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bool paths_are_equivalent(const wcstring &p1, const wcstring &p2);
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bool path_is_valid(const wcstring &path, const wcstring &working_directory);
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/** Returns whether the two paths refer to the same file */
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bool paths_are_same_file(const wcstring &path1, const wcstring &path2);
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#endif
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