Adding lzip-compressor and lzip-decompressor alternatives.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

4 files changed, 30 insertions, 0 deletions

diff --git a/debian/control b/debian/control
index ea94062..f404d41 100644
--- a/debian/control
+++ b/debian/control
@@ -18,6 +18,8 @@ Depends:
  ${shlibs:Depends},
 Provides:
  lzip-alternative,
+ lzip-compressor,
+ lzip-decompressor,
 Description: lossless data compressor based on the LZMA algorithm
  Lzip is a lossless data compressor based on the LZMA algorithm, with very safe
  integrity checking and a user interface similar to the one of gzip or bzip2.
diff --git a/debian/lzip.README.Debian b/debian/lzip.README.Debian
index b36f972..eb71338 100644
--- a/debian/lzip.README.Debian
+++ b/debian/lzip.README.Debian
@@ -73,6 +73,11 @@ This allows:
     before, install plzip and all your Lzip operations are now parallelized
     automatically.
 
+Additional lzip-compressor and lzip-decompressor are provided, both as virtual
+packages as well as alternatives in /usr/bin. This allows one to use a mixed
+mode of setting lzip alternatives globally, such as using plzip for
+decompression and lzip for compression.
+
 
 3. Best practice
 ----------------
@@ -86,6 +91,9 @@ To make the best use of Lzip, the following should be considered:
     implementation (e.g. use 'Depends: lzip-alternative | lzip' or
     'Depends: lzip-alternative | plzip', not 'Depends: lzip').
 
+  * use compressor or decompressor explicitly (e.g. use
+    'Depends: lzip-decompressor | lunzip' if you don't need to compress files).
+
 
 4. See also
 -----------
diff --git a/debian/lzip.postinst b/debian/lzip.postinst
index f4ee4fc..421394d 100755
--- a/debian/lzip.postinst
+++ b/debian/lzip.postinst
@@ -4,10 +4,23 @@ set -e
 
 case "${1}" in
 	configure)
+		# lzip-alternative
 		update-alternatives --quiet \
 			--install /usr/bin/lzip lzip /usr/bin/lzip.lzip 5000 \
 			--slave /usr/share/info/lzip.info.gz lzip.info.gz /usr/share/info/lzip.lzip.info.gz \
 			--slave /usr/share/man/man1/lzip.1.gz lzip.1.gz /usr/share/man/man1/lzip.lzip.1.gz
+
+		# lzip-compressor
+		update-alternatives --quiet \
+			--install /usr/bin/lzip-compressor lzip-compressor /usr/bin/lzip.lzip 5000 \
+			--slave /usr/share/info/lzip-compressor.info.gz lzip-compressor.info.gz /usr/share/info/lzip.lzip.info.gz \
+			--slave /usr/share/man/man1/lzip-compressor.1.gz lzip-compressor.1.gz /usr/share/man/man1/lzip.lzip.1.gz
+
+		# lzip-decompressor
+		update-alternatives --quiet \
+			--install /usr/bin/lzip-decompressor lzip-decompressor /usr/bin/lzip.lzip 5000 \
+			--slave /usr/share/info/lzip-decompressor.info.gz lzip-decompressor.info.gz /usr/share/info/lzip.lzip.info.gz \
+			--slave /usr/share/man/man1/lzip-decompressor.1.gz lzip-decompressor.1.gz /usr/share/man/man1/lzip.lzip.1.gz
 		;;
 
 	abort-upgrade|abort-remove|abort-deconfigure)
diff --git a/debian/lzip.prerm b/debian/lzip.prerm
index 35e8122..88f2bd8 100755
--- a/debian/lzip.prerm
+++ b/debian/lzip.prerm
@@ -4,7 +4,14 @@ set -e
 
 case "${1}" in
 	remove|upgrade|deconfigure)
+		# lzip-alternative
 		update-alternatives --quiet --remove lzip /usr/bin/lzip.lzip
+
+		# lzip-compressor
+		update-alternatives --quiet --remove lzip-compressor /usr/bin/lzip.lzip
+
+		# lzip-decompressor
+		update-alternatives --quiet --remove lzip-decompressor /usr/bin/lzip.lzip
 		;;
 
 	failed-upgrade)