patch 9.0.1962: No support for writing extended attributes
Problem: No support for writing extended attributes
Solution: Add extended attribute support for linux
It's been a long standing issue, that if you write a file with extended
attributes and backupcopy is set to no, the file will loose the extended
attributes.
So this patch adds support for retrieving the extended attributes and
copying it to the new file. It currently only works on linux, mainly
because I don't know the different APIs for other systems (BSD, MacOSX and
Solaris). On linux, this should be supported since Kernel 2.4 or
something, so this should be pretty safe to use now.
Enable the extended attribute support with normal builds.
I also added it explicitly to the :version output as well as make it
able to check using `:echo has("xattr")`, to have users easily check
that this is available.
In contrast to the similar support for SELINUX and SMACK support (which
also internally uses extended attributes), I have made this a FEAT_XATTR
define, instead of the similar HAVE_XATTR.
Add a test and change CI to include relevant packages so that CI can
test that extended attributes are correctly written.
closes: #306
closes: #13203
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/doc/builtin.txt b/runtime/doc/builtin.txt
index 8a92ff6..b4ea216 100644
--- a/runtime/doc/builtin.txt
+++ b/runtime/doc/builtin.txt
@@ -1,4 +1,4 @@
-*builtin.txt* For Vim version 9.0. Last change: 2023 Aug 09
+*builtin.txt* For Vim version 9.0. Last change: 2023 Sep 27
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -11082,6 +11082,8 @@
windows Compiled with support for more than one window.
(always true)
writebackup Compiled with 'writebackup' default on.
+xattr Compiled with extended attributes support |xattr|
+ (currently only supported on Linux).
xfontset Compiled with X fontset support |xfontset|.
xim Compiled with X input method support |xim|.
xpm Compiled with pixmap support.
diff --git a/runtime/doc/editing.txt b/runtime/doc/editing.txt
index 4627911..a015c84 100644
--- a/runtime/doc/editing.txt
+++ b/runtime/doc/editing.txt
@@ -1,4 +1,4 @@
-*editing.txt* For Vim version 9.0. Last change: 2023 Sep 22
+*editing.txt* For Vim version 9.0. Last change: 2023 Sep 27
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -1097,6 +1097,13 @@
The ACL info is also used to check if a file is read-only (when opening the
file).
+ *xattr* *E1506* *E1507* *E1508* *E1509*
+xattr stands for Extended Attributes It is an advanced way to save metadata
+alongside the file in the filesystem. It depends on the actual filesystem
+being used and Vim supports it only on a Linux system.
+ Vim attempts to preserve the extended attribute info when writing a file.
+The backup file will get the extended attribute of the original file.
+
*read-only-share*
When MS-Windows shares a drive on the network it can be marked as read-only.
This means that even if the file read-only attribute is absent, and the ACL
diff --git a/runtime/doc/tags b/runtime/doc/tags
index 1df34d3..249800f 100644
--- a/runtime/doc/tags
+++ b/runtime/doc/tags
@@ -1483,6 +1483,7 @@
+wildmenu various.txt /*+wildmenu*
+windows various.txt /*+windows*
+writebackup various.txt /*+writebackup*
++xattr various.txt /*+xattr*
+xfontset various.txt /*+xfontset*
+xim various.txt /*+xim*
+xpm various.txt /*+xpm*
@@ -4506,6 +4507,10 @@
E1503 builtin.txt /*E1503*
E1504 builtin.txt /*E1504*
E1505 builtin.txt /*E1505*
+E1506 editing.txt /*E1506*
+E1507 editing.txt /*E1507*
+E1508 editing.txt /*E1508*
+E1509 editing.txt /*E1509*
E151 helphelp.txt /*E151*
E152 helphelp.txt /*E152*
E153 helphelp.txt /*E153*
@@ -11224,6 +11229,7 @@
x11-clientserver remote.txt /*x11-clientserver*
x11-cut-buffer gui_x11.txt /*x11-cut-buffer*
x11-selection gui_x11.txt /*x11-selection*
+xattr editing.txt /*xattr*
xf86conf.vim syntax.txt /*xf86conf.vim*
xfontset mbyte.txt /*xfontset*
xfree-xterm syntax.txt /*xfree-xterm*
diff --git a/runtime/doc/various.txt b/runtime/doc/various.txt
index e478c82..b2b7903 100644
--- a/runtime/doc/various.txt
+++ b/runtime/doc/various.txt
@@ -1,4 +1,4 @@
-*various.txt* For Vim version 9.0. Last change: 2022 Dec 13
+*various.txt* For Vim version 9.0. Last change: 2023 Sep 27
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -503,6 +503,7 @@
m *+writebackup* |'writebackup'| is default on
m *+xim* X input method |xim|
*+xfontset* X fontset support |xfontset|
+N *+xattr* compiled with extended attribute support (Linux only)
*+xpm* pixmap support
m *+xpm_w32* Win32 GUI only: pixmap support |w32-xpm-support|
*+xsmp* XSMP (X session management) support