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* [newlib-cygwin/main] Cygwin: chattr: fix description of requirements for casesensitive directories
@ 2023-04-03 20:41 Corinna Vinschen
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From: Corinna Vinschen @ 2023-04-03 20:41 UTC (permalink / raw)
To: cygwin-cvs
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=be2749cd4eb6e7ea1b70eaf7cd78f683db21c8ec
commit be2749cd4eb6e7ea1b70eaf7cd78f683db21c8ec
Author: Corinna Vinschen <corinna@vinschen.de>
AuthorDate: Mon Apr 3 22:41:07 2023 +0200
Commit: Corinna Vinschen <corinna@vinschen.de>
CommitDate: Mon Apr 3 22:41:07 2023 +0200
Cygwin: chattr: fix description of requirements for casesensitive directories
Preconditions of WSL or empty directories dependent on Windows
versions was totally screwed up. Drop the description from
--help, describe the preconditions for case-sensitive dirs in the
man page instead.
Fixes: fc6e89c937c1 ("Cygwin: chattr: clarify requirements for casesensitive directories")
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Diff:
---
winsup/doc/utils.xml | 22 +++++++++++++++++++---
winsup/utils/chattr.c | 5 +----
2 files changed, 20 insertions(+), 7 deletions(-)
diff --git a/winsup/doc/utils.xml b/winsup/doc/utils.xml
index a90db5e665ed..0390db20fd8a 100644
--- a/winsup/doc/utils.xml
+++ b/winsup/doc/utils.xml
@@ -89,11 +89,27 @@
content indexing service
'e', 'Encrypted': file is encrypted
'C', 'Casesensitive': directory is handled case sensitive
- - local NTFS only
- - Windows 10 1803 or later: requires installed WSL
- - Windows 11: enabling requires empty dir
</screen>
</refsect1>
+
+ <refsect1 id="chattr-Cprec">
+ <title>Case-sensitive directories</title>
+ <para>Case-sensitive directories are supported starting with
+ Windows 10 1803. They are only supported on local NTFS filesystems.
+ </para>
+ <para>The system-wide availability of case-sensitive directories
+ depends on the setting of the registry value of type DWORD called
+ HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem\NtfsEnableDirCaseSensitivity. The value 0 disables case-sensitive directories.
+ The value 1 enables case-sensitive directories. The value 3
+ enables case-sensitive directories, too, with the additional
+ requirement that a directory can only be set to case-sensitive
+ if it's empty. No other value is supported.</para>
+ <para>Removing case-sensitivity on a directory requires that the
+ directory does not contain files only differing by case.</para>
+ <para>Trying to access a case-sensitive directory on a remote NTFS leads
+ to all kinds of weird errors and is therefore
+ <emphasis>not</emphasis> recommended.</para>
+ </refsect1>
</refentry>
<refentry id="cygcheck">
diff --git a/winsup/utils/chattr.c b/winsup/utils/chattr.c
index 2438d79b482b..4b074133cf6f 100644
--- a/winsup/utils/chattr.c
+++ b/winsup/utils/chattr.c
@@ -264,10 +264,7 @@ usage (FILE *stream)
" 'n', 'Notindexed': file or directory is not to be indexed by the\n"
" content indexing service\n"
" 'e', 'Encrypted': file is encrypted\n"
- " 'C', 'Casesensitive': directory is handled case sensitive\n"
- " - local NTFS only\n"
- " - Windows 10 1803 or later: requires installed WSL\n"
- " - Windows 11: enabling requires empty dir\n");
+ " 'C', 'Casesensitive': directory is handled case sensitive\n");
exit (stream == stdout ? 0 : 1);
}
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