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Adding --lzma option to make-dist
From: |
Sven Joachim |
Subject: |
Adding --lzma option to make-dist |
Date: |
Sun, 13 Jan 2008 09:48:02 +0100 |
User-agent: |
Gnus/5.110007 (No Gnus v0.7) Emacs/22.1.50 (gnu/linux) |
Inspired by the latest change that added the --bzip2 option to
make-dist, I did the same for --lzma and ran a short benchmark to
compare the results with the various compressors. Here is a summary of
the results for `make-dist --snapshot' in the Emacs trunk on my
machine¹:
Option creation time (s) tarball size (B) unpacking time (s)
------- ----------------- --------------- ------------------
(none) 30.45 39,821,789 3.49
--bzip2 84.28 31,947,657 26.34
--lzma 338.23 26,797,729 7.71
It seems that the lzma format would be a very good candidate for
distribution tarballs, if only it were more widespread; information and
downloads are available at http://www.7-zip.org/sdk.html.
Diff and Changelog entry:
--8<---------------cut here---------------start------------->8---
--- make-dist 5 Jan 2008 13:26:33 -0000 1.239
+++ make-dist 13 Jan 2008 08:35:11 -0000
@@ -86,6 +86,11 @@
default_gzip="bzip2"
;;
+ ## Same with lzma.
+ "--lzma")
+ default_gzip="lzma"
+ ;;
+
"--snapshot")
clean_up=yes
make_tar=yes
@@ -99,6 +104,7 @@
echo " --bzip2 use bzip2 instead of gzip"
echo " --clean-up delete staging directories when done"
echo " --compress use compress instead of gzip"
+ echo " --lzma use lzma instead of gzip"
echo " --newer=TIME don't include files older than TIME"
echo " --no-check don't check for bad file names etc."
echo " --no-update don't recompile or do analogous things"
@@ -750,6 +756,7 @@
case "${default_gzip}" in
bzip2) gzip_extension=.bz2 ;;
compress* ) gzip_extension=.Z ;;
+ lzma) gzip_extension=.lzma ;;
* ) gzip_extension=.gz ;;
esac
echo "Creating tar file"
--8<---------------cut here---------------end--------------->8---
2008-01-13 Sven Joachim <address@hidden>
* make-dist: Add --lzma.
¹ Athlon XP 2400+ (2Ghz), 1 GB RAM
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