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@ -4,7 +4,7 @@ let |
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# Function that generates a TGZ file from a NPM project |
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buildNodeSourceDist = |
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{ name, version, src }: |
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stdenv.mkDerivation { |
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name = "node-tarball-${name}-${version}"; |
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inherit src; |
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@ -30,7 +30,7 @@ let |
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sha1 = "77466de589cd5d3c95f138aa78bc569a3cb5d27a"; |
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}; |
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} {}; |
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# Function that produces a deployed NPM package in the Nix store |
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buildNodePackage = |
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{ name, version, src, dependencies ? {}, buildInputs ? [], production ? true, npmFlags ? "", meta ? {}, linkDependencies ? false }: |
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@ -42,8 +42,8 @@ let |
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# |
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# It uses the semver utility to check whether a version range matches any |
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# of the provided dependencies. |
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analysedDependencies = |
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analysedDependencies = |
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if dependencies == {} then {} |
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else |
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import (stdenv.mkDerivation { |
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@ -63,14 +63,14 @@ let |
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let |
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providedDependency = builtins.getAttr dependencyName providedDependencies; |
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versions = builtins.attrNames providedDependency; |
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# If there is a version range match, add the dependency to |
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# the set of shimmed dependencies. |
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# Otherwise, it is a required dependency. |
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in |
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'' |
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$(latestVersion=$(semver -r '${versionSpec}' ${stdenv.lib.concatMapStrings (version: " '${version}'") versions} | tail -1 | tr -d '\n') |
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if semver -r '${versionSpec}' ${stdenv.lib.concatMapStrings (version: " '${version}'") versions} >/dev/null |
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then |
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echo "shimmedDependencies.\"${dependencyName}\".\"$latestVersion\" = true;" |
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@ -86,7 +86,7 @@ let |
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EOF |
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''; |
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}); |
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requiredDependencies = analysedDependencies.requiredDependencies or {}; |
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shimmedDependencies = analysedDependencies.shimmedDependencies or {}; |
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@ -95,11 +95,11 @@ let |
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tar --no-same-owner --no-same-permissions -xf ${nodejs.src} |
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mv node-* $out |
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''; |
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# Compose dependency information that this package must propagate to its |
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# dependencies, so that provided dependencies are not included a second time. |
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# This prevents cycles and wildcard version mismatches. |
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propagatedProvidedDependencies = |
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(stdenv.lib.mapAttrs (dependencyName: dependency: |
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builtins.listToAttrs (map (versionSpec: |
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@ -110,20 +110,20 @@ let |
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) dependencies) // |
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providedDependencies // |
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{ "${name}"."${version}" = true; }; |
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# Create a node_modules folder containing all required dependencies of the |
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# package |
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nodeDependencies = stdenv.mkDerivation { |
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name = "node-dependencies-${name}-${version}"; |
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inherit src; |
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buildCommand = '' |
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mkdir -p $out/lib/node_modules |
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cd $out/lib/node_modules |
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# Create copies of (or symlinks to) the dependencies that must be deployed in this package's private node_modules folder. |
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# This package's private dependencies are NPM packages that have not been provided by any of the includers. |
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${stdenv.lib.concatMapStrings (requiredDependencyName: |
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stdenv.lib.concatMapStrings (versionSpec: |
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let |
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@ -133,7 +133,7 @@ let |
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in |
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'' |
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depPath=$(echo ${dependency}/lib/node_modules/*) |
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${if linkDependencies then '' |
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ln -s $depPath . |
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'' else '' |
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@ -144,35 +144,35 @@ let |
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) (builtins.attrNames requiredDependencies)} |
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''; |
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}; |
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# Deploy the Node package with some tricks |
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self = stdenv.lib.makeOverridable stdenv.mkDerivation { |
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inherit src meta; |
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dontStrip = true; |
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name = "node-${name}-${version}"; |
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buildInputs = [ nodejs python ] ++ stdenv.lib.optional (stdenv.isLinux) utillinux ++ buildInputs; |
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buildPhase = "true"; |
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dontBuild = true; |
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installPhase = '' |
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# Move the contents of the tarball into the output folder |
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mkdir -p "$out/lib/node_modules/${name}" |
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mv * "$out/lib/node_modules/${name}" |
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# Enter the target directory |
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cd "$out/lib/node_modules/${name}" |
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# Patch the shebangs of the bundled modules. For "regular" dependencies |
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# this is step is not required, because it has already been done by the generic builder. |
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if [ -d node_modules ] |
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then |
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patchShebangs node_modules |
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fi |
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# Copy the required dependencies |
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mkdir -p node_modules |
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${stdenv.lib.optionalString (requiredDependencies != {}) '' |
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for i in ${nodeDependencies}/lib/node_modules/* |
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do |
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@ -182,9 +182,9 @@ let |
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fi |
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done |
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''} |
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# Create shims for the packages that have been provided by earlier includers to allow the NPM install operation to still succeed |
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${stdenv.lib.concatMapStrings (shimmedDependencyName: |
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stdenv.lib.concatMapStrings (versionSpec: |
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'' |
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@ -198,24 +198,24 @@ let |
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'' |
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) (builtins.attrNames (shimmedDependencies."${shimmedDependencyName}")) |
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) (builtins.attrNames shimmedDependencies)} |
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# Ignore npm-shrinkwrap.json for now. Ideally, it should be supported as well |
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rm -f npm-shrinkwrap.json |
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# Some version specifiers (latest, unstable, URLs, file paths) force NPM to make remote connections or consult paths outside the Nix store. |
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# The following JavaScript replaces these by * to prevent that: |
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( |
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cat <<EOF |
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var fs = require('fs'); |
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var url = require('url'); |
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/* |
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* Replaces an impure version specification by * |
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*/ |
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function replaceImpureVersionSpec(versionSpec) { |
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var parsedUrl = url.parse(versionSpec); |
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if(versionSpec == "latest" || versionSpec == "unstable" || |
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versionSpec.substr(0, 2) == ".." || dependency.substr(0, 2) == "./" || dependency.substr(0, 2) == "~/" || dependency.substr(0, 1) == '/') |
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return '*'; |
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@ -225,9 +225,9 @@ let |
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else |
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return versionSpec; |
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} |
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var packageObj = JSON.parse(fs.readFileSync('./package.json')); |
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/* Replace dependencies */ |
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if(packageObj.dependencies !== undefined) { |
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for(var dependency in packageObj.dependencies) { |
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@ -235,7 +235,7 @@ let |
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packageObj.dependencies[dependency] = replaceImpureVersionSpec(versionSpec); |
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} |
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} |
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/* Replace development dependencies */ |
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if(packageObj.devDependencies !== undefined) { |
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for(var dependency in packageObj.devDependencies) { |
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@ -243,7 +243,7 @@ let |
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packageObj.devDependencies[dependency] = replaceImpureVersionSpec(versionSpec); |
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} |
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} |
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/* Replace optional dependencies */ |
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if(packageObj.optionalDependencies !== undefined) { |
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for(var dependency in packageObj.optionalDependencies) { |
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@ -251,19 +251,19 @@ let |
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packageObj.optionalDependencies[dependency] = replaceImpureVersionSpec(versionSpec); |
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} |
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} |
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|
/* Write the fixed JSON file */ |
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|
|
fs.writeFileSync("package.json", JSON.stringify(packageObj)); |
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|
EOF |
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) | node |
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# Deploy the Node.js package by running npm install. Since the dependencies have been symlinked, it should not attempt to install them again, |
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# which is good, because we want to make it Nix's responsibility. If it needs to install any dependencies anyway (e.g. because the dependency |
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# parameters are incomplete/incorrect), it fails. |
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export HOME=$TMPDIR |
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npm --registry http://www.example.com --nodedir=${nodeSources} ${npmFlags} ${stdenv.lib.optionalString production "--production"} install |
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# After deployment of the NPM package, we must remove the shims again |
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|
${stdenv.lib.concatMapStrings (shimmedDependencyName: |
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'' |
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|
@ -271,19 +271,19 @@ let |
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rmdir node_modules/${shimmedDependencyName} |
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|
'' |
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|
) (builtins.attrNames shimmedDependencies)} |
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|
# It makes no sense to keep an empty node_modules folder around, so delete it if this is the case |
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|
|
if [ -d node_modules ] |
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|
then |
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|
|
rmdir --ignore-fail-on-non-empty node_modules |
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|
|
fi |
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|
# Create symlink to the deployed executable folder, if applicable |
|
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|
|
if [ -d "$out/lib/node_modules/.bin" ] |
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|
|
then |
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|
|
ln -s $out/lib/node_modules/.bin $out/bin |
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|
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fi |
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|
# Create symlinks to the deployed manual page folders, if applicable |
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|
|
|
if [ -d "$out/lib/node_modules/${name}/man" ] |
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|
|
then |
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|
|
@ -298,7 +298,7 @@ let |
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|
|
done |
|
|
|
|
fi |
|
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|
|
''; |
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|
|
shellHook = stdenv.lib.optionalString (requiredDependencies != {}) '' |
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|
|
export NODE_PATH=${nodeDependencies}/lib/node_modules |
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|
|
|
''; |
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|
|
Robin Gloster
8 years ago