From 33ded3d61be87e7026a6f86f54668e751e4b64fc Mon Sep 17 00:00:00 2001
From: Pavel Roskin <proski@gnu.org>
Date: Wed, 22 Jun 2005 02:21:43 +0000
Subject: [PATCH] * extfs/u7z: New file - support for 7zip archives. *
 extfs/Makefile.am: Add u7z. * extfs/extfs.ini: Likewise.

---
 vfs/ChangeLog         |  4 +++
 vfs/extfs/Makefile.am |  2 +-
 vfs/extfs/extfs.ini   |  1 +
 vfs/extfs/u7z         | 67 +++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 73 insertions(+), 1 deletion(-)
 create mode 100644 vfs/extfs/u7z

diff --git a/vfs/ChangeLog b/vfs/ChangeLog
index 14dca98a8..ce93faf6c 100644
--- a/vfs/ChangeLog
+++ b/vfs/ChangeLog
@@ -1,5 +1,9 @@
 2005-06-21  Pavel Roskin  <proski@gnu.org>
 
+	* extfs/u7z: New file - support for 7zip archives.
+	* extfs/Makefile.am: Add u7z.
+	* extfs/extfs.ini: Likewise.
+
 	* ftpfs.c (ftpfs_get_current_directory): Warning fix - "missing
 	sentinel in function call".
 
diff --git a/vfs/extfs/Makefile.am b/vfs/extfs/Makefile.am
index 2b1a1c93b..ff00525bb 100644
--- a/vfs/extfs/Makefile.am
+++ b/vfs/extfs/Makefile.am
@@ -4,7 +4,7 @@ extfsdir = $(pkgdatadir)/extfs
 EXTFS_MISC  = README extfs.ini sfs.ini
 
 # Scripts hat don't need adaptation to the local system
-EXTFS_CONST = bpp rpm trpm
+EXTFS_CONST = bpp rpm trpm u7z
 
 # Scripts that need adaptation to the local system - source files
 EXTFS_IN    = 			\
diff --git a/vfs/extfs/extfs.ini b/vfs/extfs/extfs.ini
index 7a04e8ed2..2fc326374 100644
--- a/vfs/extfs/extfs.ini
+++ b/vfs/extfs/extfs.ini
@@ -7,6 +7,7 @@ uzoo
 ulha
 urar
 uha
+u7z
 # For arj usage you need a special patch to unarj (see unarj.diff)
 uarj
 
diff --git a/vfs/extfs/u7z b/vfs/extfs/u7z
new file mode 100644
index 000000000..da2272eea
--- /dev/null
+++ b/vfs/extfs/u7z
@@ -0,0 +1,67 @@
+#! /bin/sh
+#
+# extfs support for p7zip
+# Written by Pavel Roskin <proski@gnu.org>
+# Licensed under GNU GPL version 2 or later version.
+
+P7ZIP=7za
+
+mcu7zip_list ()
+{
+	# Symlinks are not shown - no idea how to distinguish them
+	# Read-only files are not shown as such - it's rarely useful
+	ugid="`id -nu` `id -ng`"
+	date_re='^\(....\)-\(..\)-\(..\) \(..:..:..\)'
+	date_mc='\2-\3-\1 \4'
+	size_re='............'
+	$P7ZIP l "$1" | sed -n "s/$date_re D.... $size_re $size_re\(.*\)/drwxr-xr-x 1 $ugid 0 $date_mc \5/p;s/$date_re \..... \($size_re\) $size_re\(.*\)/-rw-r--r-- 1 $ugid \5 $date_mc \6/p"
+}
+
+mcu7zip_copyout ()
+{
+	$P7ZIP e -so "$1" "$2" > "$3" 2>/dev/null
+}
+
+mcu7zip_copyin ()
+{
+	$P7ZIP a -si"$2" "$1" <"$3" >/dev/null 2>&1
+}
+
+mcu7zip_mkdir ()
+{
+	dir=`mktemp -d "${MC_TMPDIR:-/tmp}/mctmpdir-u7z.XXXXXX"` || exit 1
+	mkdir -p "$dir"/"$2"
+	$P7ZIP a -w"$dir" "$1" "$2" >/dev/null 2>&1
+	rm -rf "$dir"
+}
+
+mcu7zip_rm ()
+{
+	# NOTE: Version 4.20 fails to delete files in subdirectories
+	$P7ZIP d "$1" "$2" >/dev/null 2>&1
+}
+
+mcu7zip_rmdir ()
+{
+	$P7ZIP d "$1" "$2"/ >/dev/null 2>&1
+}
+
+# override any locale for dates
+LC_ALL=C
+export LC_ALL
+
+umask 077
+
+cmd="$1"
+shift
+
+case "$cmd" in
+  list)    mcu7zip_list    "$@" ;;
+  copyout) mcu7zip_copyout "$@" ;;
+  copyin)  mcu7zip_copyin  "$@" ;;
+  mkdir)   mcu7zip_mkdir   "$@" ;;
+  rm)      mcu7zip_rm      "$@" ;;
+  rmdir)   mcu7zip_rmdir   "$@" ;;
+  *) exit 1 ;;
+esac
+exit 0