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| author | Siep Kroonenberg <siepo@cybercomm.nl> | 2020-02-16 12:25:29 +0000 |
|---|---|---|
| committer | Siep Kroonenberg <siepo@cybercomm.nl> | 2020-02-16 12:25:29 +0000 |
| commit | f477a01bac446954cbea3b58a3ceb69f4f876d7a (patch) | |
| tree | 6f00d9f9c669623efdd02836de8285e398d3940a /Master/tlpkg/tltcl | |
| parent | 2a7dcf428e2d49c39e57849152ebd8fb99124271 (diff) | |
Real test for writability of directory rather than 'file writable'
git-svn-id: svn://tug.org/texlive/trunk@53801 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Master/tlpkg/tltcl')
| -rw-r--r-- | Master/tlpkg/tltcl/tltcl.tcl | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/Master/tlpkg/tltcl/tltcl.tcl b/Master/tlpkg/tltcl/tltcl.tcl index b0b8d1c19d5..11f237b18ce 100644 --- a/Master/tlpkg/tltcl/tltcl.tcl +++ b/Master/tlpkg/tltcl/tltcl.tcl @@ -1,6 +1,6 @@ #!/usr/bin/env wish -# Copyright 2018 Siep Kroonenberg +# Copyright 2018-2020 Siep Kroonenberg # This file is licensed under the GNU General Public License version 2 # or any later version. @@ -543,6 +543,28 @@ proc native_slashify {s} { return $r } +# test whether a directory is writable. +# 'file writable' merely tests permissions, which may not be good enough +proc dir_writable {d} { + for {set x 0} {$x<100} {incr x} { + set y [expr {int(10000*rand())}] + set newfile [file join $::instroot $y] + if [file exists $newfile] { + continue + } else { + set fid [open $newfile w] + chan close $fid + if [file exists $newfile] { + file delete $newfile + return 1 + } else { + return 0 + } + } + } + return 0 +} + # unix: choose_dir replacing native directory browser if {$::tcl_platform(platform) eq "unix"} { |