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* Test whether sequences of patches work.

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This commit is contained in:
Eelco Dolstra 2010-11-17 18:01:37 +00:00
parent 1a211d812f
commit d92ccbf1ac
2 changed files with 37 additions and 15 deletions
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5
tests/binary-patching.nix
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@ -8,8 +8,11 @@ mkDerivation {
'' ''
mkdir $out mkdir $out
seq 1 1000000 > $out/foo seq 1 1000000 > $out/foo
${if version == 2 then '' ${if version != 1 then ''
seq 1000000 1010000 >> $out/foo seq 1000000 1010000 >> $out/foo
'' else ""} '' else ""}
${if version == 3 then ''
echo foobar >> $out/foo
'' else ""}
''; '';
} }

47
tests/binary-patching.sh
View file

@ -12,28 +12,47 @@ $NIX_BIN_DIR/nix-push --copy $TEST_ROOT/cache2 $TEST_ROOT/manifest1 \
out2=$($nixbuild -o $RESULT binary-patching.nix --arg version 2) out2=$($nixbuild -o $RESULT binary-patching.nix --arg version 2)
$NIX_BIN_DIR/nix-push --copy $TEST_ROOT/cache2 $TEST_ROOT/manifest2 $out2 $NIX_BIN_DIR/nix-push --copy $TEST_ROOT/cache2 $TEST_ROOT/manifest2 $out2
out3=$($nixbuild -o $RESULT binary-patching.nix --arg version 3)
$NIX_BIN_DIR/nix-push --copy $TEST_ROOT/cache2 $TEST_ROOT/manifest3 $out3
rm $RESULT rm $RESULT
# Generate a binary patch. # Generate binary patches.
$NIX_BIN_DIR/generate-patches.pl $TEST_ROOT/cache2 $TEST_ROOT/patches \ $NIX_BIN_DIR/generate-patches.pl $TEST_ROOT/cache2 $TEST_ROOT/patches \
file://$TEST_ROOT/patches $TEST_ROOT/manifest1 $TEST_ROOT/manifest2 file://$TEST_ROOT/patches $TEST_ROOT/manifest1 $TEST_ROOT/manifest2
grep -q "patch {" $TEST_ROOT/manifest2 $NIX_BIN_DIR/generate-patches.pl $TEST_ROOT/cache2 $TEST_ROOT/patches \
file://$TEST_ROOT/patches $TEST_ROOT/manifest2 $TEST_ROOT/manifest3
# Get rid of version 2. grep -q "patch {" $TEST_ROOT/manifest3
$nixstore --delete $out2
! test -e $out2
# Pull the manifest containing the patch. # Get rid of versions 2 and 3.
$nixstore --delete $out2 $out3
# Pull the manifest containing the patches.
clearManifests clearManifests
$NIX_BIN_DIR/nix-pull file://$TEST_ROOT/manifest2 $NIX_BIN_DIR/nix-pull file://$TEST_ROOT/manifest3
# To make sure that we're using the patch, delete the full NARs. # Make sure that the download size prediction uses the patches rather
rm -f $TEST_ROOT/cache2/*
# Make sure that the download size prediction uses the patch rather
# than the full download. # than the full download.
$nixbuild -o $RESULT binary-patching.nix --arg version 2 --dry-run 2>&1 | grep -q "0.01 MiB" $nixbuild -o $RESULT binary-patching.nix --arg version 3 --dry-run 2>&1 | grep -q "0.01 MiB"
# Now rebuild it. This should use the patch generated above. # Now rebuild it. This should use the two patches generated above.
$nixbuild -o $RESULT binary-patching.nix --arg version 2 rm -f $TEST_ROOT/var/log/nix/downloads
$nixbuild -o $RESULT binary-patching.nix --arg version 3
rm $RESULT
[ "$(grep ' patch ' $TEST_ROOT/var/log/nix/downloads | wc -l)" -eq 2 ]
# Add a patch from version 1 directly to version 3.
$NIX_BIN_DIR/generate-patches.pl $TEST_ROOT/cache2 $TEST_ROOT/patches \
file://$TEST_ROOT/patches $TEST_ROOT/manifest1 $TEST_ROOT/manifest3
# Rebuild version 3. This should use the direct patch rather than the
# sequence of two patches.
$nixstore --delete $out2 $out3
clearManifests
rm $TEST_ROOT/var/log/nix/downloads
$NIX_BIN_DIR/nix-pull file://$TEST_ROOT/manifest3
$nixbuild -o $RESULT binary-patching.nix --arg version 3
[ "$(grep ' patch ' $TEST_ROOT/var/log/nix/downloads | wc -l)" -eq 1 ]