66a3ac6a56
Querying all substitutable paths via "nix-env -qas" is potentially hard on a server, since it involves sending thousands of HEAD requests. So a binary cache must now have a meta-info file named "nix-cache-info" that specifies whether the server wants this. It also specifies the store prefix so that we don't send useless queries to a binary cache for a different store prefix.
35 lines
883 B
Bash
35 lines
883 B
Bash
source common.sh
|
|
|
|
clearStore
|
|
|
|
# Create the binary cache.
|
|
cacheDir=$TEST_ROOT/binary-cache
|
|
rm -rf $cacheDir
|
|
|
|
outPath=$(nix-build dependencies.nix --no-out-link)
|
|
|
|
nix-push --dest $cacheDir $outPath
|
|
|
|
|
|
# By default, a binary cache doesn't support "nix-env -qas", but does
|
|
# support installation.
|
|
clearStore
|
|
rm -f $NIX_STATE_DIR/binary-cache*
|
|
|
|
NIX_BINARY_CACHES="file://$cacheDir" nix-env -f dependencies.nix -qas \* | grep -- "---"
|
|
|
|
NIX_BINARY_CACHES="file://$cacheDir" nix-store -r $outPath
|
|
|
|
|
|
# But with the right configuration, "nix-env -qas" should also work.
|
|
clearStore
|
|
rm -f $NIX_STATE_DIR/binary-cache*
|
|
echo "WantMassQuery: 1" >> $cacheDir/nix-cache-info
|
|
|
|
NIX_BINARY_CACHES="file://$cacheDir" nix-env -f dependencies.nix -qas \* | grep -- "--S"
|
|
|
|
NIX_BINARY_CACHES="file://$cacheDir" nix-store -r $outPath
|
|
|
|
nix-store --check-validity $outPath
|
|
nix-store -qR $outPath | grep input-2
|
|
|