From df2a55f82d5efeed8c59c5cf3b4e7381c97959b5 Mon Sep 17 00:00:00 2001 From: Alan Pearce Date: Sat, 4 May 2024 12:38:32 +0200 Subject: chore: use prettier with plugin to format go templates --- default.nix | 19 +- frontend/templates/index.gotmpl | 29 + frontend/templates/index.tmpl | 24 - internal/server/server.go | 2 +- nix/overlays/default.nix | 6 + .../prettier-plugin-go-template/default.nix | 17 + .../prettier-plugin-go-template/node-env.nix | 689 +++++++++++++++++++++ .../prettier-plugin-go-template/node-packages.json | 3 + .../prettier-plugin-go-template/node-packages.nix | 50 ++ shell.nix | 1 + 10 files changed, 810 insertions(+), 30 deletions(-) create mode 100644 frontend/templates/index.gotmpl delete mode 100644 frontend/templates/index.tmpl create mode 100644 nix/overlays/default.nix create mode 100644 nix/overlays/prettier-plugin-go-template/default.nix create mode 100644 nix/overlays/prettier-plugin-go-template/node-env.nix create mode 100644 nix/overlays/prettier-plugin-go-template/node-packages.json create mode 100644 nix/overlays/prettier-plugin-go-template/node-packages.nix diff --git a/default.nix b/default.nix index 3db0a44..d3585e0 100644 --- a/default.nix +++ b/default.nix @@ -5,6 +5,7 @@ in import sources.nixpkgs { overlays = [ (import "${sources.gomod2nix}/overlay.nix") + (import ./nix/overlays/default.nix) ]; } ) @@ -33,12 +34,18 @@ in golangci-lint.enable = true; staticcheck.enable = true; - statix.enable = true; + statix = { + enable = true; + settings.ignore = [ "nix/*" ]; + }; deadnix = { enable = true; - excludes = [ "./nix" ]; + excludes = [ "nix/.*" ]; + }; + nixpkgs-fmt = { + enable = true; + excludes = [ "nix/.*" ]; }; - nixpkgs-fmt.enable = true; convco.enable = true; @@ -47,9 +54,11 @@ in editorconfig-checker.enable = true; prettier = { enable = true; - types_or = [ "plain-text" "yaml" ]; + types_or = [ "plain-text" "yaml" "gotmpl" ]; settings = { - check = true; + plugins = with pkgs.nodePackages; [ + "${prettier-plugin-go-template}/lib/node_modules/prettier-plugin-go-template/lib/index.js" + ]; }; }; diff --git a/frontend/templates/index.gotmpl b/frontend/templates/index.gotmpl new file mode 100644 index 0000000..511f663 --- /dev/null +++ b/frontend/templates/index.gotmpl @@ -0,0 +1,29 @@ + + + + + + Searchix + + + + +
+

Searchix

+

Search Nix Packages and options from NixOS, Darwin and Home-Manager

+ +
+
+ + +
{{ block "results" . }}{{ end }}
+
+ + {{ .LiveReload }} + + diff --git a/frontend/templates/index.tmpl b/frontend/templates/index.tmpl deleted file mode 100644 index 303d030..0000000 --- a/frontend/templates/index.tmpl +++ /dev/null @@ -1,24 +0,0 @@ - - - - - - Searchix - - - - -
-

Searchix

-

Search Nix Packages and options from NixOS, Darwin and Home-Manager

-
-
- -
- - -
-
- {{ .LiveReload }} - - diff --git a/internal/server/server.go b/internal/server/server.go index 04ee94c..bb29ff3 100644 --- a/internal/server/server.go +++ b/internal/server/server.go @@ -88,7 +88,7 @@ func New(runtimeConfig *Config) (*Server, error) { Repanic: true, }) - templatePaths := path.Join("frontend", "templates", "*.tmpl") + templatePaths := path.Join("frontend", "templates", "*.gotmpl") tpl := template.Must(template.ParseGlob(templatePaths)) top := http.NewServeMux() diff --git a/nix/overlays/default.nix b/nix/overlays/default.nix new file mode 100644 index 0000000..3e5c925 --- /dev/null +++ b/nix/overlays/default.nix @@ -0,0 +1,6 @@ +self: super: { + nodePackages = super.nodePackages.extend + (final: prev: + super.callPackage ./prettier-plugin-go-template { } + ); +} diff --git a/nix/overlays/prettier-plugin-go-template/default.nix b/nix/overlays/prettier-plugin-go-template/default.nix new file mode 100644 index 0000000..d9c0dae --- /dev/null +++ b/nix/overlays/prettier-plugin-go-template/default.nix @@ -0,0 +1,17 @@ +# This file has been generated by node2nix 1.11.1. Do not edit! + +{pkgs ? import { + inherit system; + }, system ? builtins.currentSystem, nodejs ? pkgs."nodejs_18"}: + +let + nodeEnv = import ./node-env.nix { + inherit (pkgs) stdenv lib python2 runCommand writeTextFile writeShellScript; + inherit pkgs nodejs; + libtool = if pkgs.stdenv.isDarwin then pkgs.darwin.cctools else null; + }; +in +import ./node-packages.nix { + inherit (pkgs) fetchurl nix-gitignore stdenv lib fetchgit; + inherit nodeEnv; +} diff --git a/nix/overlays/prettier-plugin-go-template/node-env.nix b/nix/overlays/prettier-plugin-go-template/node-env.nix new file mode 100644 index 0000000..bc1e366 --- /dev/null +++ b/nix/overlays/prettier-plugin-go-template/node-env.nix @@ -0,0 +1,689 @@ +# This file originates from node2nix + +{lib, stdenv, nodejs, python2, pkgs, libtool, runCommand, writeTextFile, writeShellScript}: + +let + # Workaround to cope with utillinux in Nixpkgs 20.09 and util-linux in Nixpkgs master + utillinux = if pkgs ? utillinux then pkgs.utillinux else pkgs.util-linux; + + python = if nodejs ? python then nodejs.python else python2; + + # Create a tar wrapper that filters all the 'Ignoring unknown extended header keyword' noise + tarWrapper = runCommand "tarWrapper" {} '' + mkdir -p $out/bin + + cat > $out/bin/tar <> $out/nix-support/hydra-build-products + ''; + }; + + # Common shell logic + installPackage = writeShellScript "install-package" '' + installPackage() { + local packageName=$1 src=$2 + + local strippedName + + local DIR=$PWD + cd $TMPDIR + + unpackFile $src + + # Make the base dir in which the target dependency resides first + mkdir -p "$(dirname "$DIR/$packageName")" + + if [ -f "$src" ] + then + # Figure out what directory has been unpacked + packageDir="$(find . -maxdepth 1 -type d | tail -1)" + + # Restore write permissions to make building work + find "$packageDir" -type d -exec chmod u+x {} \; + chmod -R u+w "$packageDir" + + # Move the extracted tarball into the output folder + mv "$packageDir" "$DIR/$packageName" + elif [ -d "$src" ] + then + # Get a stripped name (without hash) of the source directory. + # On old nixpkgs it's already set internally. + if [ -z "$strippedName" ] + then + strippedName="$(stripHash $src)" + fi + + # Restore write permissions to make building work + chmod -R u+w "$strippedName" + + # Move the extracted directory into the output folder + mv "$strippedName" "$DIR/$packageName" + fi + + # Change to the package directory to install dependencies + cd "$DIR/$packageName" + } + ''; + + # Bundle the dependencies of the package + # + # Only include dependencies if they don't exist. They may also be bundled in the package. + includeDependencies = {dependencies}: + lib.optionalString (dependencies != []) ( + '' + mkdir -p node_modules + cd node_modules + '' + + (lib.concatMapStrings (dependency: + '' + if [ ! -e "${dependency.packageName}" ]; then + ${composePackage dependency} + fi + '' + ) dependencies) + + '' + cd .. + '' + ); + + # Recursively composes the dependencies of a package + composePackage = { name, packageName, src, dependencies ? [], ... }@args: + builtins.addErrorContext "while evaluating node package '${packageName}'" '' + installPackage "${packageName}" "${src}" + ${includeDependencies { inherit dependencies; }} + cd .. + ${lib.optionalString (builtins.substring 0 1 packageName == "@") "cd .."} + ''; + + pinpointDependencies = {dependencies, production}: + let + pinpointDependenciesFromPackageJSON = writeTextFile { + name = "pinpointDependencies.js"; + text = '' + var fs = require('fs'); + var path = require('path'); + + function resolveDependencyVersion(location, name) { + if(location == process.env['NIX_STORE']) { + return null; + } else { + var dependencyPackageJSON = path.join(location, "node_modules", name, "package.json"); + + if(fs.existsSync(dependencyPackageJSON)) { + var dependencyPackageObj = JSON.parse(fs.readFileSync(dependencyPackageJSON)); + + if(dependencyPackageObj.name == name) { + return dependencyPackageObj.version; + } + } else { + return resolveDependencyVersion(path.resolve(location, ".."), name); + } + } + } + + function replaceDependencies(dependencies) { + if(typeof dependencies == "object" && dependencies !== null) { + for(var dependency in dependencies) { + var resolvedVersion = resolveDependencyVersion(process.cwd(), dependency); + + if(resolvedVersion === null) { + process.stderr.write("WARNING: cannot pinpoint dependency: "+dependency+", context: "+process.cwd()+"\n"); + } else { + dependencies[dependency] = resolvedVersion; + } + } + } + } + + /* Read the package.json configuration */ + var packageObj = JSON.parse(fs.readFileSync('./package.json')); + + /* Pinpoint all dependencies */ + replaceDependencies(packageObj.dependencies); + if(process.argv[2] == "development") { + replaceDependencies(packageObj.devDependencies); + } + else { + packageObj.devDependencies = {}; + } + replaceDependencies(packageObj.optionalDependencies); + replaceDependencies(packageObj.peerDependencies); + + /* Write the fixed package.json file */ + fs.writeFileSync("package.json", JSON.stringify(packageObj, null, 2)); + ''; + }; + in + '' + node ${pinpointDependenciesFromPackageJSON} ${if production then "production" else "development"} + + ${lib.optionalString (dependencies != []) + '' + if [ -d node_modules ] + then + cd node_modules + ${lib.concatMapStrings (dependency: pinpointDependenciesOfPackage dependency) dependencies} + cd .. + fi + ''} + ''; + + # Recursively traverses all dependencies of a package and pinpoints all + # dependencies in the package.json file to the versions that are actually + # being used. + + pinpointDependenciesOfPackage = { packageName, dependencies ? [], production ? true, ... }@args: + '' + if [ -d "${packageName}" ] + then + cd "${packageName}" + ${pinpointDependencies { inherit dependencies production; }} + cd .. + ${lib.optionalString (builtins.substring 0 1 packageName == "@") "cd .."} + fi + ''; + + # Extract the Node.js source code which is used to compile packages with + # native bindings + nodeSources = runCommand "node-sources" {} '' + tar --no-same-owner --no-same-permissions -xf ${nodejs.src} + mv node-* $out + ''; + + # Script that adds _integrity fields to all package.json files to prevent NPM from consulting the cache (that is empty) + addIntegrityFieldsScript = writeTextFile { + name = "addintegrityfields.js"; + text = '' + var fs = require('fs'); + var path = require('path'); + + function augmentDependencies(baseDir, dependencies) { + for(var dependencyName in dependencies) { + var dependency = dependencies[dependencyName]; + + // Open package.json and augment metadata fields + var packageJSONDir = path.join(baseDir, "node_modules", dependencyName); + var packageJSONPath = path.join(packageJSONDir, "package.json"); + + if(fs.existsSync(packageJSONPath)) { // Only augment packages that exist. Sometimes we may have production installs in which development dependencies can be ignored + console.log("Adding metadata fields to: "+packageJSONPath); + var packageObj = JSON.parse(fs.readFileSync(packageJSONPath)); + + if(dependency.integrity) { + packageObj["_integrity"] = dependency.integrity; + } else { + packageObj["_integrity"] = "sha1-000000000000000000000000000="; // When no _integrity string has been provided (e.g. by Git dependencies), add a dummy one. It does not seem to harm and it bypasses downloads. + } + + if(dependency.resolved) { + packageObj["_resolved"] = dependency.resolved; // Adopt the resolved property if one has been provided + } else { + packageObj["_resolved"] = dependency.version; // Set the resolved version to the version identifier. This prevents NPM from cloning Git repositories. + } + + if(dependency.from !== undefined) { // Adopt from property if one has been provided + packageObj["_from"] = dependency.from; + } + + fs.writeFileSync(packageJSONPath, JSON.stringify(packageObj, null, 2)); + } + + // Augment transitive dependencies + if(dependency.dependencies !== undefined) { + augmentDependencies(packageJSONDir, dependency.dependencies); + } + } + } + + if(fs.existsSync("./package-lock.json")) { + var packageLock = JSON.parse(fs.readFileSync("./package-lock.json")); + + if(![1, 2].includes(packageLock.lockfileVersion)) { + process.stderr.write("Sorry, I only understand lock file versions 1 and 2!\n"); + process.exit(1); + } + + if(packageLock.dependencies !== undefined) { + augmentDependencies(".", packageLock.dependencies); + } + } + ''; + }; + + # Reconstructs a package-lock file from the node_modules/ folder structure and package.json files with dummy sha1 hashes + reconstructPackageLock = writeTextFile { + name = "reconstructpackagelock.js"; + text = '' + var fs = require('fs'); + var path = require('path'); + + var packageObj = JSON.parse(fs.readFileSync("package.json")); + + var lockObj = { + name: packageObj.name, + version: packageObj.version, + lockfileVersion: 2, + requires: true, + packages: { + "": { + name: packageObj.name, + version: packageObj.version, + license: packageObj.license, + bin: packageObj.bin, + dependencies: packageObj.dependencies, + engines: packageObj.engines, + optionalDependencies: packageObj.optionalDependencies + } + }, + dependencies: {} + }; + + function augmentPackageJSON(filePath, packages, dependencies) { + var packageJSON = path.join(filePath, "package.json"); + if(fs.existsSync(packageJSON)) { + var packageObj = JSON.parse(fs.readFileSync(packageJSON)); + packages[filePath] = { + version: packageObj.version, + integrity: "sha1-000000000000000000000000000=", + dependencies: packageObj.dependencies, + engines: packageObj.engines, + optionalDependencies: packageObj.optionalDependencies + }; + dependencies[packageObj.name] = { + version: packageObj.version, + integrity: "sha1-000000000000000000000000000=", + dependencies: {} + }; + processDependencies(path.join(filePath, "node_modules"), packages, dependencies[packageObj.name].dependencies); + } + } + + function processDependencies(dir, packages, dependencies) { + if(fs.existsSync(dir)) { + var files = fs.readdirSync(dir); + + files.forEach(function(entry) { + var filePath = path.join(dir, entry); + var stats = fs.statSync(filePath); + + if(stats.isDirectory()) { + if(entry.substr(0, 1) == "@") { + // When we encounter a namespace folder, augment all packages belonging to the scope + var pkgFiles = fs.readdirSync(filePath); + + pkgFiles.forEach(function(entry) { + if(stats.isDirectory()) { + var pkgFilePath = path.join(filePath, entry); + augmentPackageJSON(pkgFilePath, packages, dependencies); + } + }); + } else { + augmentPackageJSON(filePath, packages, dependencies); + } + } + }); + } + } + + processDependencies("node_modules", lockObj.packages, lockObj.dependencies); + + fs.writeFileSync("package-lock.json", JSON.stringify(lockObj, null, 2)); + ''; + }; + + # Script that links bins defined in package.json to the node_modules bin directory + # NPM does not do this for top-level packages itself anymore as of v7 + linkBinsScript = writeTextFile { + name = "linkbins.js"; + text = '' + var fs = require('fs'); + var path = require('path'); + + var packageObj = JSON.parse(fs.readFileSync("package.json")); + + var nodeModules = Array(packageObj.name.split("/").length).fill("..").join(path.sep); + + if(packageObj.bin !== undefined) { + fs.mkdirSync(path.join(nodeModules, ".bin")) + + if(typeof packageObj.bin == "object") { + Object.keys(packageObj.bin).forEach(function(exe) { + if(fs.existsSync(packageObj.bin[exe])) { + console.log("linking bin '" + exe + "'"); + fs.symlinkSync( + path.join("..", packageObj.name, packageObj.bin[exe]), + path.join(nodeModules, ".bin", exe) + ); + } + else { + console.log("skipping non-existent bin '" + exe + "'"); + } + }) + } + else { + if(fs.existsSync(packageObj.bin)) { + console.log("linking bin '" + packageObj.bin + "'"); + fs.symlinkSync( + path.join("..", packageObj.name, packageObj.bin), + path.join(nodeModules, ".bin", packageObj.name.split("/").pop()) + ); + } + else { + console.log("skipping non-existent bin '" + packageObj.bin + "'"); + } + } + } + else if(packageObj.directories !== undefined && packageObj.directories.bin !== undefined) { + fs.mkdirSync(path.join(nodeModules, ".bin")) + + fs.readdirSync(packageObj.directories.bin).forEach(function(exe) { + if(fs.existsSync(path.join(packageObj.directories.bin, exe))) { + console.log("linking bin '" + exe + "'"); + fs.symlinkSync( + path.join("..", packageObj.name, packageObj.directories.bin, exe), + path.join(nodeModules, ".bin", exe) + ); + } + else { + console.log("skipping non-existent bin '" + exe + "'"); + } + }) + } + ''; + }; + + prepareAndInvokeNPM = {packageName, bypassCache, reconstructLock, npmFlags, production}: + let + forceOfflineFlag = if bypassCache then "--offline" else "--registry http://www.example.com"; + in + '' + # Pinpoint the versions of all dependencies to the ones that are actually being used + echo "pinpointing versions of dependencies..." + source $pinpointDependenciesScriptPath + + # Patch the shebangs of the bundled modules to prevent them from + # calling executables outside the Nix store as much as possible + patchShebangs . + + # Deploy the Node.js package by running npm install. Since the + # dependencies have been provided already by ourselves, it should not + # attempt to install them again, which is good, because we want to make + # it Nix's responsibility. If it needs to install any dependencies + # anyway (e.g. because the dependency parameters are + # incomplete/incorrect), it fails. + # + # The other responsibilities of NPM are kept -- version checks, build + # steps, postprocessing etc. + + export HOME=$TMPDIR + cd "${packageName}" + runHook preRebuild + + ${lib.optionalString bypassCache '' + ${lib.optionalString reconstructLock '' + if [ -f package-lock.json ] + then + echo "WARNING: Reconstruct lock option enabled, but a lock file already exists!" + echo "This will most likely result in version mismatches! We will remove the lock file and regenerate it!" + rm package-lock.json + else + echo "No package-lock.json file found, reconstructing..." + fi + + node ${reconstructPackageLock} + ''} + + node ${addIntegrityFieldsScript} + ''} + + npm ${forceOfflineFlag} --nodedir=${nodeSources} ${npmFlags} ${lib.optionalString production "--production"} rebuild + + runHook postRebuild + + if [ "''${dontNpmInstall-}" != "1" ] + then + # NPM tries to download packages even when they already exist if npm-shrinkwrap is used. + rm -f npm-shrinkwrap.json + + npm ${forceOfflineFlag} --nodedir=${nodeSources} --no-bin-links --ignore-scripts ${npmFlags} ${lib.optionalString production "--production"} install + fi + + # Link executables defined in package.json + node ${linkBinsScript} + ''; + + # Builds and composes an NPM package including all its dependencies + buildNodePackage = + { name + , packageName + , version ? null + , dependencies ? [] + , buildInputs ? [] + , production ? true + , npmFlags ? "" + , dontNpmInstall ? false + , bypassCache ? false + , reconstructLock ? false + , preRebuild ? "" + , dontStrip ? true + , unpackPhase ? "true" + , buildPhase ? "true" + , meta ? {} + , ... }@args: + + let + extraArgs = removeAttrs args [ "name" "dependencies" "buildInputs" "dontStrip" "dontNpmInstall" "preRebuild" "unpackPhase" "buildPhase" "meta" ]; + in + stdenv.mkDerivation ({ + name = "${name}${if version == null then "" else "-${version}"}"; + buildInputs = [ tarWrapper python nodejs ] + ++ lib.optional (stdenv.isLinux) utillinux + ++ lib.optional (stdenv.isDarwin) libtool + ++ buildInputs; + + inherit nodejs; + + inherit dontStrip; # Stripping may fail a build for some package deployments + inherit dontNpmInstall preRebuild unpackPhase buildPhase; + + compositionScript = composePackage args; + pinpointDependenciesScript = pinpointDependenciesOfPackage args; + + passAsFile = [ "compositionScript" "pinpointDependenciesScript" ]; + + installPhase = '' + source ${installPackage} + + # Create and enter a root node_modules/ folder + mkdir -p $out/lib/node_modules + cd $out/lib/node_modules + + # Compose the package and all its dependencies + source $compositionScriptPath + + ${prepareAndInvokeNPM { inherit packageName bypassCache reconstructLock npmFlags production; }} + + # Create symlink to the deployed executable folder, if applicable + if [ -d "$out/lib/node_modules/.bin" ] + then + ln -s $out/lib/node_modules/.bin $out/bin + + # Fixup all executables + ls $out/bin/* | while read i + do + file="$(readlink -f "$i")" + chmod u+rwx "$file" + if isScript "$file" + then + sed -i 's/\r$//' "$file" # convert crlf to lf + fi + done + fi + + # Create symlinks to the deployed manual page folders, if applicable + if [ -d "$out/lib/node_modules/${packageName}/man" ] + then + mkdir -p $out/share + for dir in "$out/lib/node_modules/${packageName}/man/"* + do + mkdir -p $out/share/man/$(basename "$dir") + for page in "$dir"/* + do + ln -s $page $out/share/man/$(basename "$dir") + done + done + fi + + # Run post install hook, if provided + runHook postInstall + ''; + + meta = { + # default to Node.js' platforms + platforms = nodejs.meta.platforms; + } // meta; + } // extraArgs); + + # Builds a node environment (a node_modules folder and a set of binaries) + buildNodeDependencies = + { name + , packageName + , version ? null + , src + , dependencies ? [] + , buildInputs ? [] + , production ? true + , npmFlags ? "" + , dontNpmInstall ? false + , bypassCache ? false + , reconstructLock ? false + , dontStrip ? true + , unpackPhase ? "true" + , buildPhase ? "true" + , ... }@args: + + let + extraArgs = removeAttrs args [ "name" "dependencies" "buildInputs" ]; + in + stdenv.mkDerivation ({ + name = "node-dependencies-${name}${if version == null then "" else "-${version}"}"; + + buildInputs = [ tarWrapper python nodejs ] + ++ lib.optional (stdenv.isLinux) utillinux + ++ lib.optional (stdenv.isDarwin) libtool + ++ buildInputs; + + inherit dontStrip; # Stripping may fail a build for some package deployments + inherit dontNpmInstall unpackPhase buildPhase; + + includeScript = includeDependencies { inherit dependencies; }; + pinpointDependenciesScript = pinpointDependenciesOfPackage args; + + passAsFile = [ "includeScript" "pinpointDependenciesScript" ]; + + installPhase = '' + source ${installPackage} + + mkdir -p $out/${packageName} + cd $out/${packageName} + + source $includeScriptPath + + # Create fake package.json to make the npm commands work properly + cp ${src}/package.json . + chmod 644 package.json + ${lib.optionalString bypassCache '' + if [ -f ${src}/package-lock.json ] + then + cp ${src}/package-lock.json . + chmod 644 package-lock.json + fi + ''} + + # Go to the parent folder to make sure that all packages are pinpointed + cd .. + ${lib.optionalString (builtins.substring 0 1 packageName == "@") "cd .."} + + ${prepareAndInvokeNPM { inherit packageName bypassCache reconstructLock npmFlags production; }} + + # Expose the executables that were installed + cd .. + ${lib.optionalString (builtins.substring 0 1 packageName == "@") "cd .."} + + mv ${packageName} lib + ln -s $out/lib/node_modules/.bin $out/bin + ''; + } // extraArgs); + + # Builds a development shell + buildNodeShell = + { name + , packageName + , version ? null + , src + , dependencies ? [] + , buildInputs ? [] + , production ? true + , npmFlags ? "" + , dontNpmInstall ? false + , bypassCache ? false + , reconstructLock ? false + , dontStrip ? true + , unpackPhase ? "true" + , buildPhase ? "true" + , ... }@args: + + let + nodeDependencies = buildNodeDependencies args; + extraArgs = removeAttrs args [ "name" "dependencies" "buildInputs" "dontStrip" "dontNpmInstall" "unpackPhase" "buildPhase" ]; + in + stdenv.mkDerivation ({ + name = "node-shell-${name}${if version == null then "" else "-${version}"}"; + + buildInputs = [ python nodejs ] ++ lib.optional (stdenv.isLinux) utillinux ++ buildInputs; + buildCommand = '' + mkdir -p $out/bin + cat > $out/bin/shell <