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Change zstdless behavior to align with zless #2909

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Merged
merged 5 commits into from
Jan 22, 2022
Merged

Change zstdless behavior to align with zless #2909

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6aa1d08
Change zstdless behavior to align with zless
binhdvo Dec 3, 2021
a2c4516
Merge branch 'facebook:dev' into zstdlessworking
binhdvo Jan 20, 2022
e59e72b
Add simple tests
binhdvo Jan 20, 2022
c439f5d
Additional test and restore reverted commit
binhdvo Jan 21, 2022
332db9d
Test fixes
binhdvo Jan 21, 2022
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8 changes: 7 additions & 1 deletion programs/zstdless
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Original file line number Diff line number Diff line change
@@ -1,2 +1,8 @@
#!/bin/sh
zstdcat "$@" | less

zstd=${ZSTD:-zstd}

# TODO: Address quirks and bugs tied to old versions of less, provide a mechanism to pass flags directly to zstd

export LESSOPEN="|-${zstd} -cdfq %s"
exec less "$@"
15 changes: 15 additions & 0 deletions tests/playTests.sh
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Expand Up @@ -89,6 +89,7 @@ PRGDIR="$SCRIPT_DIR/../programs"
TESTDIR="$SCRIPT_DIR/../tests"
UNAME=$(uname)
ZSTDGREP="$PRGDIR/zstdgrep"
ZSTDLESS="$PRGDIR/zstdless"

detectedTerminal=false
if [ -t 0 ] && [ -t 1 ]
Expand Down Expand Up @@ -322,6 +323,20 @@ ZCAT=./zstdcat "$ZSTDGREP" 2>&1 "1234" tmp_grep_bad.zst && die "Should have fail
ZCAT=./zstdcat "$ZSTDGREP" 2>&1 "1234" tmp_grep_bad.zst | grep "No such file or directory" || true
rm -f tmp_grep*

println "\n===> zstdless tests"
if [ -n "$(which less)" ]; then
ln -sf "$ZSTD_BIN" zstd
rm -f tmp_less*
echo "1234" > tmp_less
zstd -f tmp_less
lines=$(ZSTD=./zstd "$ZSTDLESS" 2>&1 tmp_less.zst | wc -l)
test 1 -eq $lines
ZSTD=./zstd "$ZSTDLESS" -f tmp_less.zst > tmp_less_regenerated
$DIFF tmp_less tmp_less_regenerated
ZSTD=./zstd "$ZSTDLESS" 2>&1 tmp_less_bad.zst | grep "No such file or directory" || die
rm -f tmp_less*
fi

println "\n===> --exclude-compressed flag"
rm -rf precompressedFilterTestDir
mkdir -p precompressedFilterTestDir
Expand Down