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ui-snapshot: add support for zstd compression

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This patch adds support for zstd [0] compressed snapshots (*.tar.zst).
We enable multiple working threads (-T0), but keep default compression
level. The latter can be influenced by environment variable.

[0] https://www.zstd.net/

Signed-off-by: Christian Hesse <mail@eworm.de>
This commit is contained in:
Christian Hesse 2020-02-26 09:12:21 +01:00 • committed by Jason A. Donenfeld
parent cc230bf044
commit 892ba8c3cc
4 changed files with 56 additions and 4 deletions
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42
tests/t0107-snapshot.sh
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@ -122,6 +122,48 @@ test_expect_success XZ 'verify untarred file-5' '
test_line_count = 1 master/file-5
'
if test -n "$(which zstd 2>/dev/null)"; then
test_set_prereq ZSTD
else
say 'Skipping ZSTD validation tests: zstd not found'
fi
test_expect_success ZSTD 'get foo/snapshot/master.tar.zst' '
cgit_url "foo/snapshot/master.tar.zst" >tmp
'
test_expect_success ZSTD 'check html headers' '
head -n 1 tmp |
grep "Content-Type: application/x-zstd" &&
head -n 2 tmp |
grep "Content-Disposition: inline; filename=.master.tar.zst."
'
test_expect_success ZSTD 'strip off the header lines' '
strip_headers <tmp >master.tar.zst
'
test_expect_success ZSTD 'verify zstd format' '
zstd --test master.tar.zst &&
cp master.tar.zst /tmp/.
'
test_expect_success ZSTD 'untar' '
rm -rf master &&
tar --zstd -xf master.tar.zst
'
test_expect_success ZSTD 'count files' '
ls master/ >output &&
test_line_count = 5 output
'
test_expect_success ZSTD 'verify untarred file-5' '
grep "^5$" master/file-5 &&
test_line_count = 1 master/file-5
'
test_expect_success 'get foo/snapshot/master.zip' '
cgit_url "foo/snapshot/master.zip" >tmp
'