summaryrefslogtreecommitdiffstats
path: root/src/vfs/extfs/helpers/u7z
diff options
context:
space:
mode:
Diffstat (limited to '')
-rwxr-xr-xsrc/vfs/extfs/helpers/u7z135
1 files changed, 135 insertions, 0 deletions
diff --git a/src/vfs/extfs/helpers/u7z b/src/vfs/extfs/helpers/u7z
new file mode 100755
index 0000000..91301c3
--- /dev/null
+++ b/src/vfs/extfs/helpers/u7z
@@ -0,0 +1,135 @@
+#! /bin/sh
+#
+# extfs support for p7zip
+# Written by Pavel Roskin <proski@gnu.org>
+# Some Bugfixes/workarounds by Sergiy Niskorodov <sgh@mail.zp.ua>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+P7ZIP=`which 7z 2>/dev/null` \
+ || P7ZIP=`which 7zz 2>/dev/null` \
+ || P7ZIP=`which 7za 2>/dev/null` \
+ || P7ZIP=`which 7zr 2>/dev/null` \
+ || P7ZIP=""
+
+# Let the test framework hook in:
+P7ZIP=${MC_TEST_EXTFS_LIST_CMD:-$P7ZIP}
+STAT=${MC_TEST_EXTFS_U7Z_STAT:-stat}
+
+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='^\(....\)-\(..\)-\(..\) \(..:..:..\)' # 19 chars.
+ date_mc='\2-\3-\1 \4'
+ empty_date_re='^ \{19\}'
+
+ size_re='............' # 12 chars.
+ empty_size_re=' \{12\}'
+ zero_size=' 0'
+
+ # archive entries can have no datetime info, 7z will use archive file datetime
+ date_archive=`$STAT -c %y "$1" 2>/dev/null | sed -n "s/${date_re}.*/${date_mc}/p" 2>/dev/null`
+ [ "${date_archive}"x = x ] && date_archive=`ls -lan "$1" 2>/dev/null | awk '{print $6, $7, $8}' 2>/dev/null`
+ [ "${date_archive}"x = x ] && date_archive="01-01-1970 00:00:00"
+
+ $P7ZIP l "$1" | sed -n "
+
+ # If the uncompressed size is missing, we copy the compressed size onto it.
+ #
+ # But first, if the compressed size is missing too, set it to zero:
+ s/^\(.\{19\} [D.]....\) $empty_size_re $empty_size_re/\1 $zero_size $zero_size/
+ # Next, do the copy:
+ s/^\(.\{19\} [D.]....\) $empty_size_re \($size_re\)/\1 \2 \2/
+ #
+ # (We use '.\{19\}' as the date may be missing. It may give false positives
+ # but we don't mind: the printing commands that follow use strict patterns.).
+
+ # Handle directories.
+ s/$date_re D.... $size_re $size_re\(.*\)/drwxr-xr-x 1 $ugid 0 $date_mc \5/p
+ s/$empty_date_re D.... $size_re $size_re\(.*\)/drwxr-xr-x 1 $ugid 0 $date_archive \1/p
+
+ # Handle normal files.
+ s/$date_re \..... \($size_re\) $size_re\(.*\)/-rw-r--r-- 1 $ugid \5 $date_mc \6/p
+ s/$empty_date_re \..... \($size_re\) $size_re\(.*\)/-rw-r--r-- 1 $ugid \1 $date_archive \2/p
+ "
+}
+
+mcu7zip_copyout ()
+{
+ #first we check if we have old p7zip archive with prefix ./ in filename
+ $P7ZIP l "$1" "$2" | grep -q "0 files, 0 folders" && \
+ EXFNAME='*./'"$2" || EXFNAME="$2"
+ $P7ZIP e -so "$1" "$EXFNAME" > "$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" "$1" "$dir"/"$2" >/dev/null 2>&1
+ rm -rf "$dir"
+}
+
+mcu7zip_rm ()
+{
+ # NOTE: Version 4.20 fails to delete files in subdirectories
+ #first we check if we have old p7zip archive with prefix ./ in filename
+ $P7ZIP l "$1" "$2" | grep -q "0 files, 0 folders" && \
+ EXFNAME='*./'"$2" || EXFNAME="$2"
+ $P7ZIP d "$1" "$EXFNAME" 2>&1 | grep -q E_NOTIMPL > /dev/null 2>&1 && \
+ { printf "Function not implemented...\n7z cannot delete from solid archive." >&2 ; exit 1 ; }
+}
+
+mcu7zip_rmdir ()
+{
+ #first we check if we have old p7zip archive with prefix ./ in filename
+ $P7ZIP l "$1" "$2" | grep -q "0 files, 0 folders" && \
+ EXFNAME='*./'"$2" || EXFNAME="$2"
+ $P7ZIP d "$1" "$EXFNAME"/ 2>&1 | grep -q E_NOTIMPL > /dev/null 2>&1 && \
+ { printf "Function not implemented...\n7z cannot delete from solid archive." >&2 ; exit 1 ; }
+}
+
+# override any locale for dates
+LC_DATE=C
+export LC_DATE
+
+umask 077
+
+if [ -z "$P7ZIP" ]; then
+ echo "Error: could not find p7zip (looked for 7z, 7za and 7zr)" >&2
+ exit 1
+fi
+
+cmd="$1"
+shift
+
+case "$cmd" in
+ list) mcu7zip_list "$@" | sort -k 8 ;;
+ copyout) mcu7zip_copyout "$@" ;;
+ copyin) mcu7zip_copyin "$@" ;;
+ mkdir) mcu7zip_mkdir "$@" ;;
+ rm) mcu7zip_rm "$@" ;;
+ rmdir) mcu7zip_rmdir "$@" ;;
+ *) exit 1 ;;
+esac
+exit 0