nix-super/tests/substituter.builder.sh

# Set a PATH (!!! impure).
export PATH=/bin:/usr/bin:$PATH

mkdir $out

cat > $out/substituter <<EOF
#! /bin/sh -ex
echo \$*

case \$* in
    *aaaa*)
        echo "Closure([\"\$2\"],[(\"\$2\",[])])" > \$1
        ;;
    *)
        mkdir \$1
        echo \$3 \$4 > \$1/hello
        ;;
esac        
EOF

chmod +x $out/substituter
* Re-enable support for substitutes in the normaliser. * A better substitute mechanism. Instead of generating a store expression for each store path for which we have a substitute, we can have a single store expression that builds a generic program that is invoked to build the desired store path, which is passed as an argument. This means that operations like `nix-pull' only produce O(1) files instead of O(N) files in the store when registering N substitutes. (It consumes O(N) database storage, of course, but that's not a performance problem). * Added a test for the substitute mechanism. * `nix-store --substitute' reads the substitutes from standard input, instead of from the command line. This prevents us from running into the kernel's limit on command line length. 2004-06-20 22:17:54 +03:00			`# Set a PATH (!!! impure).`
			`export PATH=/bin:/usr/bin:$PATH`

			`mkdir $out`

			`cat > $out/substituter <<EOF`
			`#! /bin/sh -ex`
			`echo \$*`

			`case \$* in`
			`aaaa)`
			`echo "Closure([\"\$2\"],[(\"\$2\",[])])" > \$1`
			`;;`
			`*)`
			`mkdir \$1`
			`echo \$3 \$4 > \$1/hello`
			`;;`
			`esac`
			`EOF`

			`chmod +x $out/substituter`