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eclipseWithPlugins: lazier evaluation

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Unfortunately the `readFile`/`writeText` functions forces realisation of
the eclipse package at evaluation time. By creating the configuration
file inside the build command we avoid realisation until installation.
This commit is contained in:
Robert Helgesson 2016-01-06 22:00:53 +01:00 committed by Bjørn Forsman
parent bf605c16bf
commit 40890b2b95
1 changed files with 8 additions and 9 deletions
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17
pkgs/applications/editors/eclipse/default.nix
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@ -327,21 +327,20 @@ rec {
dropinProp = "-D${dropinPropName}=${pluginEnv}/eclipse/dropins";
jvmArgsText = stdenv.lib.concatStringsSep "\n" (jvmArgs ++ [dropinProp]);
# Prepare an eclipse.ini with the plugin directory.
origEclipseIni = builtins.readFile "${eclipse}/eclipse/eclipse.ini";
eclipseIniFile = writeText "eclipse.ini" ''
${origEclipseIni}
${jvmArgsText}
'';
# Base the derivation name on the name of the underlying
# Eclipse.
name = (stdenv.lib.meta.appendToName "with-plugins" eclipse).name;
in
runCommand name { buildInputs = [ makeWrapper ]; } ''
mkdir -p $out/bin
mkdir -p $out/bin $out/etc
# Prepare an eclipse.ini with the plugin directory.
cat ${eclipse}/eclipse/eclipse.ini - > $out/etc/eclipse.ini <<EOF
${jvmArgsText}
EOF
makeWrapper ${eclipse}/bin/eclipse $out/bin/eclipse \
--add-flags "--launcher.ini ${eclipseIniFile}"
--add-flags "--launcher.ini $out/etc/eclipse.ini"
ln -s ${eclipse}/share $out/
'';