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From: Daniel Shahaf <d.s@daniel.shahaf.name>
To: zsh-users@zsh.org
Subject: Unreadable directories aren't included in glob expansion
Date: Thu, 9 Jan 2020 15:41:45 +0000	[thread overview]
Message-ID: <20200109154145.rqksfenozx6745rn@tarpaulin.shahaf.local2> (raw)

Consider:

% mkdir foo
% mkdir -m 000 bar 
% echo */ 
foo/
% echo *(/)
bar foo
% 

Shouldn't the expansion of «*/» include «bar/»?

The shell knows, in that situation, that ./bar is a directory; «test -d bar»
and «zstat -or bar» both confirm this.

dash/bash/ksh all include «bar/» in that expansion.  

strace shows a probable cause:
.
    access("buster/.", F_OK)                = -1 EACCES (Permission denied)

I've discussed this on IRC with Eric, but I'd rather let him explain his view
in his own words.

Cheers,

Daniel

P.S. Test case:

diff --git a/Test/D02glob.ztst b/Test/D02glob.ztst
index 5638e1255..1c1663a48 100644
--- a/Test/D02glob.ztst
+++ b/Test/D02glob.ztst
@@ -728,3 +728,10 @@
 >does/not/exist
 >not/exist
 >exist
+
+ mkdir -m 000 glob.tmp/secret1
+ (setopt nullglob
+  echo glob.tmp/*/ glob.tmp/*(/)
+  )
+-f:unreadable directories can be globbed
+>glob.tmp/secret1/ glob.tmp/secret1

             reply	other threads:[~2020-01-09 15:42 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20200109154313eucas1p13b2e5465f21d059ea08537012e140236@eucas1p1.samsung.com>
2020-01-09 15:41 ` Daniel Shahaf [this message]
2020-01-09 15:51   ` Peter Stephenson
2020-01-09 16:10     ` Bart Schaefer
2020-01-09 16:16       ` Daniel Shahaf
     [not found]   ` <1578585101.6028.13.camel__24021.2781982095$1578585228$gmane$org@samsung.com>
2020-01-09 17:22     ` Stephane Chazelas
2020-01-09 23:05       ` Mikael Magnusson
2020-01-10 17:11       ` Daniel Shahaf
     [not found]     ` <20200109172222.uwgyjouab45zk2gf__13897.4118557357$1578604026$gmane$org@chaz.gmail.com>
2020-01-10  7:27       ` Stephane Chazelas
2020-01-10 17:09         ` Daniel Shahaf

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