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762 lines
26 KiB
762 lines
26 KiB
###########################################################################
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# _ _ ____ _
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# Project ___| | | | _ \| |
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# / __| | | | |_) | |
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# | (__| |_| | _ <| |___
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# \___|\___/|_| \_\_____|
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#
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# Copyright (C) 2016 - 2020, Evgeny Grin (Karlson2k), <k2k@narod.ru>.
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#
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# This software is licensed as described in the file COPYING, which
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# you should have received as part of this distribution. The terms
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# are also available at https://curl.haxx.se/docs/copyright.html.
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#
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# You may opt to use, copy, modify, merge, publish, distribute and/or sell
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# copies of the Software, and permit persons to whom the Software is
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# furnished to do so, under the terms of the COPYING file.
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#
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# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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# KIND, either express or implied.
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#
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###########################################################################
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# This Perl package helps with path transforming when running curl tests on
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# Win32 platform with Msys or Cygwin.
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# Three main functions 'sys_native_abs_path', 'sys_native_path' and
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# 'build_sys_abs_path' autodetect format of given pathnames. Following formats
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# are supported:
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# (1) /some/path - absolute path in Unix-style
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# (2) D:/some/path - absolute path in Win32-style
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# (3) some/path - relative path
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# (4) D:some/path - path relative to current directory on Win32 drive (paths
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# like 'D:' are treated as 'D:./') (*)
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# (5) \some/path - path from root directory on current Win32 drive (*)
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# All forward '/' and back '\' slashes are treated identically except leading
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# slash in forms (1) and (5).
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# Forward slashes are simpler processed in Perl, do not require extra escaping
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# for shell (unlike back slashes) and accepted by Win32 native programs, so
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# all functions return paths with only forward slashes except
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# 'sys_native_path' which returns paths with first forward slash for form (5).
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# All returned paths don't contain any duplicated slashes, only single slashes
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# are used as directory separators on output.
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# On non-Windows platforms functions acts as transparent wrappers for similar
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# Perl's functions or return unmodified string (depending on functionality),
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# so all functions can be unconditionally used on all platforms.
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#
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# (*) CAUTION! Forms (4) and (5) are not recommended to use as they can be
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# interpreted incorrectly in Perl and Msys/Cygwin environment have low
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# control on Win32 current drive and Win32 current path on specific drive.
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package pathhelp;
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use strict;
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use warnings;
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use Cwd 'abs_path';
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BEGIN {
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require Exporter;
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our @ISA = qw(Exporter);
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our @EXPORT = qw(
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sys_native_abs_path
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sys_native_path
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);
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our @EXPORT_OK = qw(
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build_sys_abs_path
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sys_native_current_path
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normalize_path
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os_is_win
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$use_cygpath
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should_use_cygpath
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drives_mounted_on_cygdrive
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);
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}
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#######################################################################
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# Block for cached static variables
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#
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{
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# Cached static variable, Perl 5.0-compatible.
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my $is_win = $^O eq 'MSWin32'
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|| $^O eq 'cygwin'
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|| $^O eq 'msys';
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# Returns boolean true if OS is any form of Windows.
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sub os_is_win {
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return $is_win;
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}
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# Cached static variable, Perl 5.0-compatible.
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my $cygdrive_present;
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# Returns boolean true if Win32 drives mounted with '/cygdrive/' prefix.
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sub drives_mounted_on_cygdrive {
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return $cygdrive_present if defined $cygdrive_present;
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$cygdrive_present = ((-e '/cygdrive/') && (-d '/cygdrive/')) ? 1 : 0;
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return $cygdrive_present;
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}
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}
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our $use_cygpath; # Only for Win32:
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# undef - autodetect
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# 1 - use cygpath
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# 0 - do not use cygpath
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# Returns boolean true if 'cygpath' utility should be used for path conversion.
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sub should_use_cygpath {
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unless (os_is_win()) {
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$use_cygpath = 0;
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return 0;
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}
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return $use_cygpath if defined $use_cygpath;
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$use_cygpath = (qx{cygpath -u '.\\' 2>/dev/null} eq "./\n" && $? == 0);
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return $use_cygpath;
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}
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#######################################################################
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# Performs path "normalization": all slashes converted to forward
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# slashes (except leading slash), all duplicated slashes are replaced
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# with single slashes, all relative directories ('./' and '../') are
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# resolved if possible.
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# Path processed as string, directories are not checked for presence so
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# path for not yet existing directory can be "normalized".
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#
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sub normalize_path;
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#######################################################################
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# Returns current working directory in Win32 format on Windows.
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#
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sub sys_native_current_path {
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return Cwd::getcwd() unless os_is_win();
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my $cur_dir;
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if($^O eq 'msys') {
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# MSys shell has built-in command.
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chomp($cur_dir = `bash -c 'pwd -W'`);
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if($? != 0) {
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warn "Can't determine Win32 current directory.\n";
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return undef;
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}
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# Add final slash if required.
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$cur_dir .= '/' if length($cur_dir) > 3;
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}
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else {
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# Do not use 'cygpath' - it falsely succeed on paths like '/cygdrive'.
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$cur_dir = `cmd "/c;" echo %__CD__%`;
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if($? != 0 || substr($cur_dir, 0, 1) eq '%') {
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warn "Can't determine Win32 current directory.\n";
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return undef;
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}
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# Remove both '\r' and '\n'.
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$cur_dir =~ s{\n|\r}{}g;
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# Replace back slashes with forward slashes.
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$cur_dir =~ s{\\}{/}g;
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}
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return $cur_dir;
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}
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#######################################################################
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# Returns Win32 current drive letter with colon.
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#
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sub get_win32_current_drive {
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# Notice parameter "/c;" - it's required to turn off Msys's
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# transformation of '/c' and compatible with Cygwin.
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my $drive_letter = `cmd "/c;" echo %__CD__:~0,2%`;
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if($? != 0 || substr($drive_letter, 1, 1) ne ':') {
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warn "Can't determine current Win32 drive letter.\n";
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return undef;
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}
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return substr($drive_letter, 0, 2);
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}
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# Internal function. Converts path by using Msys's built-in transformation.
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# Returned path may contain duplicated and back slashes.
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sub do_msys_transform;
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# Internal function. Gets two parameters: first parameter must be single
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# drive letter ('c'), second optional parameter is path relative to drive's
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# current working directory. Returns Win32 absolute normalized path.
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sub get_abs_path_on_win32_drive;
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# Internal function. Tries to find or guess Win32 version of given
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# absolute Unix-style path. Other types of paths are not supported.
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# Returned paths contain only single forward slashes (no back and
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# duplicated slashes).
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# Last resort. Used only when other transformations are not available.
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sub do_dumb_guessed_transform;
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#######################################################################
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# Converts given path to system native format, i.e. to Win32 format on
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# Windows platform. Relative paths converted to relative, absolute
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# paths converted to absolute.
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#
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sub sys_native_path {
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my ($path) = @_;
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# Return untouched on non-Windows platforms.
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return $path unless (os_is_win());
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# Do not process empty path.
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return $path if ($path eq '');
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if($path =~ s{^([a-zA-Z]):$}{\u$1:}) {
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# Path is single drive with colon. (C:)
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# This type of paths is not processed correctly by 'cygpath'.
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# WARNING!
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# Be careful, this relative path can be accidentally transformed
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# into wrong absolute path by adding to it some '/dirname' with
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# slash at font.
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return $path;
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}
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elsif($path =~ m{^\\} || $path =~ m{^[a-zA-Z]:[^/\\]}) {
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# Path is a directory or filename on Win32 current drive or relative
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# path on current directory on specific Win32 drive.
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# ('\path' or 'D:path')
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# First type of paths is not processed by Msys transformation and
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# resolved to absolute path by 'cygpath'.
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# Second type is not processed by Msys transformation and may be
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# incorrectly processed by 'cygpath' (for paths like 'D:..\../.\')
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my $first_char = ucfirst(substr($path, 0, 1));
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# Replace any back and duplicated slashes with single forward slashes.
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$path =~ s{[\\/]+}{/}g;
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# Convert leading slash back to forward slash to indicate
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# directory on Win32 current drive or capitalize drive letter.
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substr($path, 0, 1) = $first_char;
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return $path;
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}
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elsif(should_use_cygpath()) {
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# 'cygpath' is available - use it.
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# Remove leading duplicated forward and back slashes, as they may
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# prevent transforming and may be not processed.
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$path =~ s{^([\\/])[\\/]+}{$1}g;
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my $has_final_slash = ($path =~ m{[/\\]$});
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# Use 'cygpath', '-m' means Win32 path with forward slashes.
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chomp($path = `cygpath -m '$path'`);
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if ($? != 0) {
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warn "Can't convert path by \"cygpath\".\n";
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return undef;
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}
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# 'cygpath' may remove last slash for existing directories.
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$path .= '/' if($has_final_slash);
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# Remove any duplicated forward slashes (added by 'cygpath' for root
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# directories)
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$path =~ s{//+}{/}g;
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return $path;
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}
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elsif($^O eq 'msys') {
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# Msys transforms automatically path to Windows native form in staring
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# program parameters if program is not Msys-based.
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$path = do_msys_transform($path);
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return undef unless defined $path;
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# Capitalize drive letter for Win32 paths.
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$path =~ s{^([a-z]:)}{\u$1};
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# Replace any back and duplicated slashes with single forward slashes.
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$path =~ s{[\\/]+}{/}g;
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return $path;
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}
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elsif($path =~ s{^([a-zA-Z]):[/\\]}{\u$1:/}) {
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# Path is already in Win32 form. ('C:\path')
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# Replace any back and duplicated slashes with single forward slashes.
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$path =~ s{[\\/]+}{/}g;
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return $path;
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}
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elsif($path !~ m{^/}) {
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# Path is in relative form. ('path/name', './path' or '../path')
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# Replace any back and duplicated slashes with single forward slashes.
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$path =~ s{[\\/]+}{/}g;
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return $path;
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}
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# OS is Windows, but not Msys, path is absolute, path is not in Win32
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# form and 'cygpath' is not available.
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return do_dumb_guessed_transform($path);
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}
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#######################################################################
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# Converts given path to system native absolute path, i.e. to Win32
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# absolute format on Windows platform. Both relative and absolute
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# formats are supported for input.
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#
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sub sys_native_abs_path {
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my ($path) = @_;
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unless(os_is_win()) {
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# Convert path to absolute form.
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$path = Cwd::abs_path($path);
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# Do not process further on non-Windows platforms.
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return $path;
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}
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if($path =~ m{^([a-zA-Z]):($|[^/\\].*$)}) {
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# Path is single drive with colon or relative path on Win32 drive.
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# ('C:' or 'C:path')
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# This kind of relative path is not processed correctly by 'cygpath'.
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# Get specified drive letter
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return get_abs_path_on_win32_drive($1, $2);
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}
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elsif($path eq '') {
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# Path is empty string. Return current directory.
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# Empty string processed correctly by 'cygpath'.
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return sys_native_current_path();
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}
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elsif(should_use_cygpath()) {
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# 'cygpath' is available - use it.
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my $has_final_slash = ($path =~ m{[\\/]$});
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# Remove leading duplicated forward and back slashes, as they may
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# prevent transforming and may be not processed.
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$path =~ s{^([\\/])[\\/]+}{$1}g;
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print "Inter result: \"$path\"\n";
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# Use 'cygpath', '-m' means Win32 path with forward slashes,
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# '-a' means absolute path
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chomp($path = `cygpath -m -a '$path'`);
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if($? != 0) {
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warn "Can't resolve path by usung \"cygpath\".\n";
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return undef;
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}
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# 'cygpath' may remove last slash for existing directories.
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$path .= '/' if($has_final_slash);
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# Remove any duplicated forward slashes (added by 'cygpath' for root
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# directories)
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$path =~ s{//+}{/}g;
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return $path
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}
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elsif($path =~ s{^([a-zA-Z]):[/\\]}{\u$1:/}) {
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# Path is already in Win32 form. ('C:\path')
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# Replace any possible back slashes with forward slashes,
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# remove any duplicated slashes, resolve relative dirs.
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return normalize_path($path);
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}
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elsif(substr($path, 0, 1) eq '\\' ) {
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# Path is directory or filename on Win32 current drive. ('\Windows')
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my $w32drive = get_win32_current_drive();
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return undef unless defined $w32drive;
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# Combine drive and path.
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# Replace any possible back slashes with forward slashes,
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# remove any duplicated slashes, resolve relative dirs.
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return normalize_path($w32drive . $path);
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}
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unless (substr($path, 0, 1) eq '/') {
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# Path is in relative form. Resolve relative directories in Unix form
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# *BEFORE* converting to Win32 form otherwise paths like
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# '../../../cygdrive/c/windows' will not be resolved.
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my $cur_dir = `pwd -L`;
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if($? != 0) {
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warn "Can't determine current working directory.\n";
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return undef;
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}
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chomp($cur_dir);
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$path = $cur_dir . '/' . $path;
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}
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# Resolve relative dirs.
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$path = normalize_path($path);
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return undef unless defined $path;
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if($^O eq 'msys') {
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# Msys transforms automatically path to Windows native form in staring
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# program parameters if program is not Msys-based.
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$path = do_msys_transform($path);
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return undef unless defined $path;
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# Replace any back and duplicated slashes with single forward slashes.
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$path =~ s{[\\/]+}{/}g;
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return $path;
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}
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# OS is Windows, but not Msys, path is absolute, path is not in Win32
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# form and 'cygpath' is not available.
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return do_dumb_guessed_transform($path);
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}
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# Internal function. Converts given Unix-style absolute path to Win32 format.
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sub simple_transform_win32_to_unix;
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#######################################################################
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# Converts given path to build system format absolute path, i.e. to
|
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# Msys/Cygwin Unix-style absolute format on Windows platform. Both
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# relative and absolute formats are supported for input.
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#
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sub build_sys_abs_path {
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my ($path) = @_;
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unless(os_is_win()) {
|
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# Convert path to absolute form.
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$path = Cwd::abs_path($path);
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# Do not process further on non-Windows platforms.
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return $path;
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}
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if($path =~ m{^([a-zA-Z]):($|[^/\\].*$)}) {
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# Path is single drive with colon or relative path on Win32 drive.
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# ('C:' or 'C:path')
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# This kind of relative path is not processed correctly by 'cygpath'.
|
|
# Get specified drive letter
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|
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# Resolve relative dirs in Win32-style path or paths like 'D:/../c/'
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|
# will be resolved incorrectly.
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|
# Replace any possible back slashes with forward slashes,
|
|
# remove any duplicated slashes.
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$path = get_abs_path_on_win32_drive($1, $2);
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return undef unless defined $path;
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return simple_transform_win32_to_unix($path);
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}
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elsif($path eq '') {
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# Path is empty string. Return current directory.
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# Empty string processed correctly by 'cygpath'.
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chomp($path = `pwd -L`);
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|
if($? != 0) {
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warn "Can't determine Unix-style current working directory.\n";
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return undef;
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|
}
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|
|
# Add final slash if not at root dir.
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|
$path .= '/' if length($path) > 2;
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|
return $path;
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|
}
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|
elsif(should_use_cygpath()) {
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|
# 'cygpath' is available - use it.
|
|
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|
my $has_final_slash = ($path =~ m{[\\/]$});
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|
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# Resolve relative directories, as they may be not resolved for
|
|
# Unix-style paths.
|
|
# Remove duplicated slashes, as they may be not processed.
|
|
$path = normalize_path($path);
|
|
return undef unless defined $path;
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|
|
|
# Use 'cygpath', '-u' means Unix-stile path,
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|
# '-a' means absolute path
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|
chomp($path = `cygpath -u -a '$path'`);
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|
if($? != 0) {
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warn "Can't resolve path by usung \"cygpath\".\n";
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return undef;
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}
|
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|
|
# 'cygpath' removes last slash if path is root dir on Win32 drive.
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|
# Restore it.
|
|
$path .= '/' if($has_final_slash &&
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substr($path, length($path) - 1, 1) ne '/');
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|
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return $path
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}
|
|
elsif($path =~ m{^[a-zA-Z]:[/\\]}) {
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|
# Path is already in Win32 form. ('C:\path')
|
|
|
|
# Resolve relative dirs in Win32-style path otherwise paths
|
|
# like 'D:/../c/' will be resolved incorrectly.
|
|
# Replace any possible back slashes with forward slashes,
|
|
# remove any duplicated slashes.
|
|
$path = normalize_path($path);
|
|
return undef unless defined $path;
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|
|
|
return simple_transform_win32_to_unix($path);
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|
}
|
|
elsif(substr($path, 0, 1) eq '\\') {
|
|
# Path is directory or filename on Win32 current drive. ('\Windows')
|
|
|
|
my $w32drive = get_win32_current_drive();
|
|
return undef unless defined $w32drive;
|
|
|
|
# Combine drive and path.
|
|
# Resolve relative dirs in Win32-style path or paths like 'D:/../c/'
|
|
# will be resolved incorrectly.
|
|
# Replace any possible back slashes with forward slashes,
|
|
# remove any duplicated slashes.
|
|
$path = normalize_path($w32drive . $path);
|
|
return undef unless defined $path;
|
|
|
|
return simple_transform_win32_to_unix($path);
|
|
}
|
|
|
|
# Path is not in any Win32 form.
|
|
unless (substr($path, 0, 1) eq '/') {
|
|
# Path in relative form. Resolve relative directories in Unix form
|
|
# *BEFORE* converting to Win32 form otherwise paths like
|
|
# '../../../cygdrive/c/windows' will not be resolved.
|
|
my $cur_dir = `pwd -L`;
|
|
if($? != 0) {
|
|
warn "Can't determine current working directory.\n";
|
|
return undef;
|
|
}
|
|
chomp($cur_dir);
|
|
|
|
$path = $cur_dir . '/' . $path;
|
|
}
|
|
|
|
return normalize_path($path);
|
|
}
|
|
|
|
#######################################################################
|
|
# Performs path "normalization": all slashes converted to forward
|
|
# slashes (except leading slash), all duplicated slashes are replaced
|
|
# with single slashes, all relative directories ('./' and '../') are
|
|
# resolved if possible.
|
|
# Path processed as string, directories are not checked for presence so
|
|
# path for not yet existing directory can be "normalized".
|
|
#
|
|
sub normalize_path {
|
|
my ($path) = @_;
|
|
|
|
# Don't process empty paths.
|
|
return $path if $path eq '';
|
|
|
|
unless($path =~ m{(?:^|\\|/)\.{1,2}(?:\\|/|$)}) {
|
|
# Speed up processing of simple paths.
|
|
my $first_char = substr($path, 0, 1);
|
|
$path =~ s{[\\/]+}{/}g;
|
|
# Restore starting backslash if any.
|
|
substr($path, 0, 1) = $first_char;
|
|
return $path;
|
|
}
|
|
|
|
my @arr;
|
|
my $prefix;
|
|
my $have_root = 0;
|
|
|
|
# Check whether path starts from Win32 drive. ('C:path' or 'C:\path')
|
|
if($path =~ m{^([a-zA-Z]:(/|\\)?)(.*$)}) {
|
|
$prefix = $1;
|
|
$have_root = 1 if defined $2;
|
|
# Process path separately from drive letter.
|
|
@arr = split(m{\/|\\}, $3);
|
|
# Replace backslash with forward slash if required.
|
|
substr($prefix, 2, 1) = '/' if $have_root;
|
|
}
|
|
else {
|
|
if($path =~ m{^(\/|\\)}) {
|
|
$have_root = 1;
|
|
$prefix = $1;
|
|
}
|
|
else {
|
|
$prefix = '';
|
|
}
|
|
@arr = split(m{\/|\\}, $path);
|
|
}
|
|
|
|
my $p = 0;
|
|
my @res;
|
|
|
|
for my $el (@arr) {
|
|
if(length($el) == 0 || $el eq '.') {
|
|
next;
|
|
}
|
|
elsif($el eq '..' && @res > 0 && $res[$#res] ne '..') {
|
|
pop @res;
|
|
next;
|
|
}
|
|
push @res, $el;
|
|
}
|
|
if($have_root && @res > 0 && $res[0] eq '..') {
|
|
warn "Error processing path \"$path\": " .
|
|
"Parent directory of root directory does not exist!\n";
|
|
return undef;
|
|
}
|
|
|
|
my $ret = $prefix . join('/', @res);
|
|
$ret .= '/' if($path =~ m{\\$|/$} && scalar @res > 0);
|
|
|
|
return $ret;
|
|
}
|
|
|
|
# Internal function. Converts path by using Msys's built-in
|
|
# transformation.
|
|
sub do_msys_transform {
|
|
my ($path) = @_;
|
|
return undef if $^O ne 'msys';
|
|
return $path if $path eq '';
|
|
|
|
# Remove leading double forward slashes, as they turn off Msys
|
|
# transforming.
|
|
$path =~ s{^/[/\\]+}{/};
|
|
|
|
# Msys transforms automatically path to Windows native form in staring
|
|
# program parameters if program is not Msys-based.
|
|
# Note: already checked that $path is non-empty.
|
|
$path = `cmd //c echo '$path'`;
|
|
if($? != 0) {
|
|
warn "Can't transform path into Win32 form by using Msys" .
|
|
"internal transformation.\n";
|
|
return undef;
|
|
}
|
|
|
|
# Remove double quotes, they are added for paths with spaces,
|
|
# remove both '\r' and '\n'.
|
|
$path =~ s{^\"|\"$|\"\r|\n|\r}{}g;
|
|
|
|
return $path;
|
|
}
|
|
|
|
# Internal function. Gets two parameters: first parameter must be single
|
|
# drive letter ('c'), second optional parameter is path relative to drive's
|
|
# current working directory. Returns Win32 absolute normalized path.
|
|
sub get_abs_path_on_win32_drive {
|
|
my ($drv, $rel_path) = @_;
|
|
my $res;
|
|
|
|
# Get current directory on specified drive.
|
|
# "/c;" is compatible with both Msys and Cygwin.
|
|
my $cur_dir_on_drv = `cmd "/c;" echo %=$drv:%`;
|
|
if($? != 0) {
|
|
warn "Can't determine Win32 current directory on drive $drv:.\n";
|
|
return undef;
|
|
}
|
|
|
|
if($cur_dir_on_drv =~ m{^[%]}) {
|
|
# Current directory on drive is not set, default is
|
|
# root directory.
|
|
|
|
$res = ucfirst($drv) . ':/';
|
|
}
|
|
else {
|
|
# Current directory on drive was set.
|
|
# Remove both '\r' and '\n'.
|
|
$cur_dir_on_drv =~ s{\n|\r}{}g;
|
|
|
|
# Append relative path part.
|
|
$res = $cur_dir_on_drv . '/';
|
|
}
|
|
$res .= $rel_path if defined $rel_path;
|
|
|
|
# Replace any possible back slashes with forward slashes,
|
|
# remove any duplicated slashes, resolve relative dirs.
|
|
return normalize_path($res);
|
|
}
|
|
|
|
# Internal function. Tries to find or guess Win32 version of given
|
|
# absolute Unix-style path. Other types of paths are not supported.
|
|
# Returned paths contain only single forward slashes (no back and
|
|
# duplicated slashes).
|
|
# Last resort. Used only when other transformations are not available.
|
|
sub do_dumb_guessed_transform {
|
|
my ($path) = @_;
|
|
|
|
# Replace any possible back slashes and duplicated forward slashes
|
|
# with single forward slashes.
|
|
$path =~ s{[/\\]+}{/}g;
|
|
|
|
# Empty path is not valid.
|
|
return undef if (length($path) == 0);
|
|
|
|
# RE to find Win32 drive letter
|
|
my $drv_ltr_re = drives_mounted_on_cygdrive() ?
|
|
qr{^/cygdrive/([a-zA-Z])($|/.*$)} :
|
|
qr{^/([a-zA-Z])($|/.*$)};
|
|
|
|
# Check path whether path is Win32 directly mapped drive and try to
|
|
# transform it assuming that drive letter is matched to Win32 drive letter.
|
|
if($path =~ m{$drv_ltr_re}) {
|
|
return ucfirst($1) . ':/' if(length($2) == 0);
|
|
return ucfirst($1) . ':' . $2;
|
|
}
|
|
|
|
# This may be some custom mapped path. ('/mymount/path')
|
|
|
|
# Must check longest possible path component as subdir can be mapped to
|
|
# different directory. For example '/usr/bin/' can be mapped to '/bin/' or
|
|
# '/bin/' can be mapped to '/usr/bin/'.
|
|
my $check_path = $path;
|
|
my $path_tail = '';
|
|
do {
|
|
if(-d $check_path) {
|
|
my $res =
|
|
`(cd "$check_path" && cmd /c "echo %__CD__%") 2>/dev/null`;
|
|
if($? == 0 && substr($path, 0, 1) ne '%') {
|
|
# Remove both '\r' and '\n'.
|
|
$res =~ s{\n|\r}{}g;
|
|
|
|
# Replace all back slashes with forward slashes.
|
|
$res =~ s{\\}{/}g;
|
|
|
|
if(length($path_tail) > 0) {
|
|
return $res . $path_tail;
|
|
}
|
|
else {
|
|
$res =~ s{/$}{} unless $check_path =~ m{/$};
|
|
return $res;
|
|
}
|
|
}
|
|
}
|
|
if($check_path =~ m{(^.*/)([^/]+/*)}) {
|
|
$check_path = $1;
|
|
$path_tail = $2 . $path_tail;
|
|
}
|
|
else {
|
|
# Shouldn't happens as root '/' directory should always
|
|
# be resolvable.
|
|
warn "Can't determine Win32 directory for path \"$path\".\n";
|
|
return undef;
|
|
}
|
|
} while(1);
|
|
}
|
|
|
|
|
|
# Internal function. Converts given Unix-style absolute path to Win32 format.
|
|
sub simple_transform_win32_to_unix {
|
|
my ($path) = @_;
|
|
|
|
if(should_use_cygpath()) {
|
|
# 'cygpath' gives precise result.
|
|
my $res;
|
|
chomp($res = `cygpath -a -u '$path'`);
|
|
if($? != 0) {
|
|
warn "Can't determine Unix-style directory for Win32 " .
|
|
"directory \"$path\".\n";
|
|
return undef;
|
|
}
|
|
|
|
# 'cygpath' removes last slash if path is root dir on Win32 drive.
|
|
$res .= '/' if(substr($res, length($res) - 1, 1) ne '/' &&
|
|
$path =~ m{[/\\]$});
|
|
return $res;
|
|
}
|
|
|
|
# 'cygpath' is not available, use guessed transformation.
|
|
unless($path =~ s{^([a-zA-Z]):(?:/|\\)}{/\l$1/}) {
|
|
warn "Can't determine Unix-style directory for Win32 " .
|
|
"directory \"$path\".\n";
|
|
return undef;
|
|
}
|
|
|
|
$path = '/cygdrive' . $path if(drives_mounted_on_cygdrive());
|
|
return $path;
|
|
}
|
|
|
|
1; # End of module
|