treewide: set meta.license on hooks

pkgs/build-support/node/build-npm-package/hooks/default.nix

@@ -31,10 +31,12 @@
       nodeVersion = nodejs.version;
       nodeVersionMajor = lib.versions.major nodejs.version;
     };
+    meta.license = lib.licenses.mit;
   } ./npm-config-hook.sh;
 
   npmBuildHook = makeSetupHook {
     name = "npm-build-hook";
+    meta.license = lib.licenses.mit;
   } ./npm-build-hook.sh;
 
   npmInstallHook = makeSetupHook {
@@ -50,5 +52,6 @@
     substitutions = {
       jq = "${jq}/bin/jq";
     };
+    meta.license = lib.licenses.mit;
   } ./npm-install-hook.sh;
 }

pkgs/build-support/node/fetch-pnpm-deps/default.nix

@@ -249,5 +249,6 @@ in
       npmArch = stdenvNoCC.targetPlatform.node.arch;
       npmPlatform = stdenvNoCC.targetPlatform.node.platform;
     };
+    meta.license = lib.licenses.mit;
   } ./pnpm-config-hook.sh;
 }

pkgs/build-support/node/fetch-yarn-deps/default.nix

@@ -180,6 +180,7 @@ in
     };
     meta = {
       description = "Install nodejs dependencies from an offline yarn cache produced by fetchYarnDeps";
+      license = lib.licenses.mit;
     };
   } ./yarn-config-hook.sh;
 
@@ -187,6 +188,7 @@ in
     name = "yarn-build-hook";
     meta = {
       description = "Run yarn build in buildPhase";
+      license = lib.licenses.mit;
     };
   } ./yarn-build-hook.sh;
 
@@ -202,6 +204,7 @@ in
     };
     meta = {
       description = "Prune yarn dependencies and install files for packages using Yarn 1";
+      license = lib.licenses.mit;
     };
   } ./yarn-install-hook.sh;
 }

pkgs/build-support/node/import-npm-lock/hooks/default.nix

@@ -14,6 +14,7 @@
       canonicalizeSymlinksScript = ./canonicalize-symlinks.js;
       storePrefix = builtins.storeDir;
     };
+    meta.license = lib.licenses.mit;
   } ./npm-config-hook.sh;
 
   linkNodeModulesHook = makeSetupHook {
@@ -23,5 +24,6 @@
       script = ./link-node-modules.js;
       storePrefix = builtins.storeDir;
     };
+    meta.license = lib.licenses.mit;
   } ./link-node-modules-hook.sh;
 }