web/lukegbcom: add rehype-toc and rehype-slug

web/lukegbcom/node-composition.nix

@@ -1,8 +1,8 @@
-# This file has been generated by node2nix 1.9.0. Do not edit!
+# This file has been generated by node2nix 1.11.1. Do not edit!
 
 {pkgs ? import <nixpkgs> {
     inherit system;
-  }, system ? builtins.currentSystem, nodejs ? pkgs."nodejs-12_x"}:
+  }, system ? builtins.currentSystem, nodejs ? pkgs."nodejs_16"}:
 
 let
   nodeEnv = import ./node-env.nix {

web/lukegbcom/node-env.nix

@@ -98,7 +98,7 @@ let
       ''
       + (lib.concatMapStrings (dependency:
         ''
-          if [ ! -e "${dependency.name}" ]; then
+          if [ ! -e "${dependency.packageName}" ]; then
               ${composePackage dependency}
           fi
         ''
@@ -165,7 +165,11 @@ let
           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));
@@ -257,8 +261,8 @@ let
           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.stderr.write("Sorry, I only understand lock file versions 1 and 2!\n");
-             process.exit(1);
+            process.exit(1);
           }
 
           if(packageLock.dependencies !== undefined) {
@@ -270,7 +274,7 @@ let
 
   # Reconstructs a package-lock file from the node_modules/ folder structure and package.json files with dummy sha1 hashes
   reconstructPackageLock = writeTextFile {
-    name = "addintegrityfields.js";
+    name = "reconstructpackagelock.js";
     text = ''
       var fs = require('fs');
       var path = require('path');
@@ -280,25 +284,43 @@ let
       var lockObj = {
           name: packageObj.name,
           version: packageObj.version,
-          lockfileVersion: 1,
+          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, 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"), dependencies[packageObj.name].dependencies);
+              processDependencies(path.join(filePath, "node_modules"), packages, dependencies[packageObj.name].dependencies);
           }
       }
 
-      function processDependencies(dir, dependencies) {
+      function processDependencies(dir, packages, dependencies) {
           if(fs.existsSync(dir)) {
               var files = fs.readdirSync(dir);
 
@@ -314,23 +336,84 @@ let
                           pkgFiles.forEach(function(entry) {
                               if(stats.isDirectory()) {
                                   var pkgFilePath = path.join(filePath, entry);
-                                  augmentPackageJSON(pkgFilePath, dependencies);
+                                  augmentPackageJSON(pkgFilePath, packages, dependencies);
                               }
                           });
                       } else {
-                          augmentPackageJSON(filePath, dependencies);
+                          augmentPackageJSON(filePath, packages, dependencies);
                       }
                   }
               });
           }
       }
 
-      processDependencies("node_modules", lockObj.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";
@@ -377,20 +460,25 @@ let
 
         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} ${npmFlags} ${lib.optionalString production "--production"} install
+            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
+    , version ? null
     , dependencies ? []
     , buildInputs ? []
     , production ? true
@@ -409,7 +497,7 @@ let
       extraArgs = removeAttrs args [ "name" "dependencies" "buildInputs" "dontStrip" "dontNpmInstall" "preRebuild" "unpackPhase" "buildPhase" "meta" ];
     in
     stdenv.mkDerivation ({
-      name = "${name}-${version}";
+      name = "${name}${if version == null then "" else "-${version}"}";
       buildInputs = [ tarWrapper python nodejs ]
         ++ lib.optional (stdenv.isLinux) utillinux
         ++ lib.optional (stdenv.isDarwin) libtool
@@ -441,6 +529,17 @@ let
         if [ -d "$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
@@ -471,7 +570,7 @@ let
   buildNodeDependencies =
     { name
     , packageName
-    , version
+    , version ? null
     , src
     , dependencies ? []
     , buildInputs ? []
@@ -489,7 +588,7 @@ let
       extraArgs = removeAttrs args [ "name" "dependencies" "buildInputs" ];
     in
       stdenv.mkDerivation ({
-        name = "node-dependencies-${name}-${version}";
+        name = "node-dependencies-${name}${if version == null then "" else "-${version}"}";
 
         buildInputs = [ tarWrapper python nodejs ]
           ++ lib.optional (stdenv.isLinux) utillinux
@@ -519,6 +618,7 @@ let
             if [ -f ${src}/package-lock.json ]
             then
                 cp ${src}/package-lock.json .
+                chmod 644 package-lock.json
             fi
           ''}
 
@@ -541,7 +641,7 @@ let
   buildNodeShell =
     { name
     , packageName
-    , version
+    , version ? null
     , src
     , dependencies ? []
     , buildInputs ? []
@@ -557,9 +657,10 @@ let
 
     let
       nodeDependencies = buildNodeDependencies args;
+      extraArgs = removeAttrs args [ "name" "dependencies" "buildInputs" "dontStrip" "dontNpmInstall" "unpackPhase" "buildPhase" ];
     in
-    stdenv.mkDerivation {
+    stdenv.mkDerivation ({
-      name = "node-shell-${name}-${version}";
+      name = "node-shell-${name}${if version == null then "" else "-${version}"}";
 
       buildInputs = [ python nodejs ] ++ lib.optional (stdenv.isLinux) utillinux ++ buildInputs;
       buildCommand = ''
@@ -578,7 +679,7 @@ let
         export NODE_PATH=${nodeDependencies}/lib/node_modules
         export PATH="${nodeDependencies}/bin:$PATH"
       '';
-    };
+    } // extraArgs);
 in
 {
   buildNodeSourceDist = lib.makeOverridable buildNodeSourceDist;

web/lukegbcom/package.json

@@ -23,10 +23,12 @@
     "react": "^17.0.2",
     "react-dom": "^17.0.2",
     "rehype-highlight": "^5.0.2",
+    "rehype-slug": "^5.1.0",
     "rehype-stringify": "^9.0.3",
     "remark-gfm": "^3.0.1",
     "remark-parse": "^10.0.1",
     "remark-rehype": "^10.1.0",
+    "remark-toc": "^8.0.1",
     "sass": "^1.49.11",
     "unified": "^10.1.2",
     "zbar.wasm": "^2.1.1"