mirror of
https://github.com/NixOS/nix.git
synced 2025-12-10 19:11:03 +01:00
c5c05e44b3
This was lost after 2.32 while making the accessor lazy. We can restore the support for it pretty easily. Also this is significant optimization for nix nar cat. E.g. with a NAR of a linux repo this speeds up by ~3x: Benchmark 1: nix nar cat /tmp/linux.nar README Time (mean ± σ): 737.2 ms ± 5.6 ms [User: 298.1 ms, System: 435.7 ms] Range (min … max): 728.6 ms … 746.9 ms 10 runs Benchmark 2: build/src/nix/nix nar cat /tmp/linux.nar README Time (mean ± σ): 253.5 ms ± 2.9 ms [User: 56.4 ms, System: 196.3 ms] Range (min … max): 248.1 ms … 258.7 ms 12 runs
67 lines
2.5 KiB
Bash
Executable file
67 lines
2.5 KiB
Bash
Executable file
#!/usr/bin/env bash
|
|
|
|
source common.sh
|
|
|
|
echo "building test path"
|
|
storePath="$(nix-build nar-access.nix -A a --no-out-link)"
|
|
|
|
cd "$TEST_ROOT"
|
|
|
|
# Dump path to nar.
|
|
narFile="$TEST_ROOT/path.nar"
|
|
nix-store --dump "$storePath" > "$narFile"
|
|
|
|
# Check that find and nar ls match.
|
|
( cd "$storePath"; find . | sort ) > files.find
|
|
nix nar ls -R -d "$narFile" "" | sort > files.ls-nar
|
|
diff -u files.find files.ls-nar
|
|
|
|
# Check that file contents of data match.
|
|
nix nar cat "$narFile" /foo/data > data.cat-nar
|
|
diff -u data.cat-nar "$storePath/foo/data"
|
|
|
|
# Check that file contents of baz match.
|
|
nix nar cat "$narFile" /foo/baz > baz.cat-nar
|
|
diff -u baz.cat-nar "$storePath/foo/baz"
|
|
nix nar cat /dev/stdin /foo/baz < "$narFile" > baz.cat-nar-pipe
|
|
expect 1 nix nar cat "$narFile" /foo/baz/doesntexist 2>&1 | grep "NAR does not contain regular file '/foo/baz/doesntexist'"
|
|
|
|
nix store cat "$storePath/foo/baz" > baz.cat-nar
|
|
diff -u baz.cat-nar "$storePath/foo/baz"
|
|
|
|
TODO_NixOS
|
|
|
|
# Check that 'nix store cat' fails on invalid store paths.
|
|
invalidPath="$(dirname "$storePath")/99999999999999999999999999999999-foo"
|
|
cp -r "$storePath" "$invalidPath"
|
|
expect 1 nix store cat "$invalidPath/foo/baz"
|
|
|
|
# Test --json.
|
|
diff -u \
|
|
<(nix nar ls --json "$narFile" / | jq -S) \
|
|
<(echo '{"type":"directory","entries":{"foo":{},"foo-x":{},"qux":{},"zyx":{}}}' | jq -S)
|
|
diff -u \
|
|
<(nix nar ls --json -R "$narFile" /foo | jq -S) \
|
|
<(echo '{"type":"directory","entries":{"bar":{"type":"regular","size":0,"narOffset":368},"baz":{"type":"regular","size":0,"narOffset":552},"data":{"type":"regular","size":58,"narOffset":736}}}' | jq -S)
|
|
diff -u \
|
|
<(nix nar ls --json -R "$narFile" /foo/bar | jq -S) \
|
|
<(echo '{"type":"regular","size":0,"narOffset":368}' | jq -S)
|
|
diff -u \
|
|
<(nix store ls --json "$storePath" | jq -S) \
|
|
<(echo '{"type":"directory","entries":{"foo":{},"foo-x":{},"qux":{},"zyx":{}}}' | jq -S)
|
|
diff -u \
|
|
<(nix store ls --json -R "$storePath/foo" | jq -S) \
|
|
<(echo '{"type":"directory","entries":{"bar":{"type":"regular","size":0},"baz":{"type":"regular","size":0},"data":{"type":"regular","size":58}}}' | jq -S)
|
|
diff -u \
|
|
<(nix store ls --json -R "$storePath/foo/bar"| jq -S) \
|
|
<(echo '{"type":"regular","size":0}' | jq -S)
|
|
|
|
# Test missing files.
|
|
expect 1 nix store ls --json -R "$storePath/xyzzy" 2>&1 | grep 'does not exist'
|
|
expect 1 nix store ls "$storePath/xyzzy" 2>&1 | grep 'does not exist'
|
|
|
|
# Test failure to dump.
|
|
if nix-store --dump "$storePath" >/dev/full ; then
|
|
echo "dumping to /dev/full should fail"
|
|
exit 1
|
|
fi
|