Remove yarn references

Remove all yarn references in code and documentation and replace it
with appropriate npm versions in the latter.

.gitattributes

@@ -1,7 +1,3 @@
-# yarn.nix generated files
-marlowe-playground-client/yarn.nix linguist-generated=true
-plutus-playground-client/yarn.nix linguist-generated=true
-plutus-scb-client/yarn.nix linguist-generated=true
 # sources.nix is generated by niv
 nix/sources.nix linguist-generated=true
 # haskell.nix materialized files

.ignore

@@ -1,5 +1,4 @@
 nix/stack.materialized/*.nix
 nix/sources.nix
 **/spago-packages.nix
-**/yarn.nix
 **/packages.nix

marlowe-playground-client/.gitignore

@@ -1,7 +1,6 @@
 /node_modules/
 /output/
 /generated/
-/yarn-error.log
 /.psci_modules/
 /generated-docs/
 /.psc-package/

marlowe-playground-client/README.md

@@ -16,20 +16,26 @@ $(nix-build -A marlowe-playground.server-invoker)/bin/marlowe-playground psgener
 # Now we will build and run the client on localhost
 cd marlowe-playground-client
 # Download javascript dependencies
-yarn
+npm install
 # Install purescript depdendencies
-yarn purs:compile
+npm run purs:compile
 ```
 
-Then run `yarn run webpack:server` for an auto-reloading dev build on https://localhost:8009
+Then run `npm run webpack:server` for an auto-reloading dev build on https://localhost:8009
 
 ## Adding dependencies
 
-* Javascript dependencies are managed with yarn, so add them to [package.json](./package.json)
-* purescript dependencies are managed with spago, so add them to [spago.dhall](./spago.dhall)
-* spago uses the concept of package sets, so if a particular package is not on the set, or you want to override the version, you can add it to [packages.dhall](./packages.dhall)
+* Javascript dependencies are managed with npm, so add them to [package.json](./package.json)
+* purescript dependencies are managed with psc-package so add them to [psc-package.json](./psc-package.json)
+* purescript uses package sets managed by spago so if the package set doesn't contain a dependency you can add it to [packages.dhall](./packages.dhall)
 
-Whenever you change any of these files you should run `$(nix-build -A dev.scripts.updateClientDeps ../default.nix)/bin/update-client-deps` to make sure they are available to things that build purescript (such as webpack). Additionally running this script will make changes to various files that will need to be committed for CI to work.
+Whenever you change `psc-package.json` or `packages.dhall` you need to make sure that all dependencies can still properly be resolved and built.
+You can do so using the `update-client-deps` script:
+
+- Inside the nix-shell environment: `update-client-deps`
+- Outside of the nix-shell environment (from the client directory): `$(nix-build -A plutus.updateClientDeps ../)/bin/update-client-deps`
+
+The `update-client-deps` script will generate/update `.nix` files which have to be committed and are required for a successful CI run.
 
 ## Code formatting
 

nix/pkgs/update-client-deps/default.nix

@@ -10,8 +10,6 @@
 , gnused
 , nodejs
 , nodePackages
-, yarn
-, yarn2nix-moretea
 , purs
 , psc-package
 , spago
@@ -31,25 +29,19 @@ lib.meta.addMetaAttrs { platforms = lib.platforms.linux; } (writeScriptBin "upda
     gnused
     nodejs
     nodePackages.node-gyp
-    yarn
-    yarn2nix-moretea.yarn2nix
     purs
     psc-package
     spago
     spago2nix
   ] ++ lib.optionals stdenv.isDarwin [ clang ])}
 
-  if [ ! -f package.json ]
+  if [ ! -f spago.dhall ]
   then
-      echo "package.json not found. Please run this script from the client directory." >&2
+      echo "spago.dhall not found. Please run this script from the client directory." >&2
       exit 1
   fi
 
-  echo Installing JavaScript Dependencies
-  yarn
-
   echo Generating nix configs.
-  yarn2nix > yarn.nix
   spago2nix generate
 
   echo Done

plutus-playground-client/.gitignore

@@ -1,7 +1,6 @@
 /node_modules/
 /output/
 /generated/
-/yarn-error.log
 /.psci_modules/
 /generated-docs/
 /.psc-package/

plutus-playground-client/README.md

@@ -12,23 +12,29 @@ $(nix-build -A plutus-playground.server-invoker)/bin/plutus-playground psgenerat
 # Now we will build and run the client on localhost
 cd plutus-playground-client
 # Download javascript dependencies
-yarn
+npm install
 # Install purescript depdendencies
-yarn purs:compile
+npm run purs:compile
 ```
 
-Then run `yarn run webpack:server` for an auto-reloading dev build on https://localhost:8009
+Then run `npm run webpack:server` for an auto-reloading dev build on https://localhost:8009
 
-You may also want to run `yarn run purs:ide` to start `psc-ide`
+You may also want to run `npm run purs:ide` to start `psc-ide`
 support running with the correct paths.
 
 ## Adding dependencies
 
-* Javascript dependencies are managed with yarn, so add them to [package.json](./package.json)
+* Javascript dependencies are managed with npm, so add them to [package.json](./package.json)
 * purescript dependencies are managed with psc-package so add them to [psc-package.json](./psc-package.json)
 * purescript uses package sets managed by spago so if the package set doesn't contain a dependency you can add it to [packages.dhall](./packages.dhall)
 
-Whenever you change any of these files you should rerun `$(nix-build -A dev.scripts.updateClientDeps ../default.nix)` to make sure they are available to things that build purescript (such as webpack). Additionally running this script will make changes to various files that will need to be committed for CI to work.
+Whenever you change `psc-package.json` or `packages.dhall` you need to make sure that all dependencies can still properly be resolved and built.
+You can do so using the `update-client-deps` script:
+
+- Inside the nix-shell environment: `update-client-deps`
+- Outside of the nix-shell environment (from the client directory): `$(nix-build -A plutus.updateClientDeps ../)/bin/update-client-deps`
+
+The `update-client-deps` script will generate/update `.nix` files which have to be committed and are required for a successful CI run.
 
 ## nix
 

plutus-scb-client/.gitignore

@@ -1,7 +1,6 @@
 /node_modules/
 /output/
 /generated/
-/yarn-error.log
 /.psci_modules/
 /generated-docs/
 /.psc-package/

shell.nix

@@ -32,7 +32,7 @@ let
         # While nixpkgs-fmt does exclude patterns specified in `.ignore` this
         # does not appear to work inside the hook. For now we have to thus
         # maintain excludes here *and* in `./.ignore` and *keep them in sync*.
-        excludes = [ ".*nix/stack.materialized/.*" ".*nix/sources.nix$" ".*/spago-packages.nix$" ".*/yarn.nix$" ".*/packages.nix$" ];
+        excludes = [ ".*nix/stack.materialized/.*" ".*nix/sources.nix$" ".*/spago-packages.nix$" ".*/packages.nix$" ];
       };
       shellcheck.enable = true;
     };
@@ -52,7 +52,6 @@ let
     sqlite-interactive
     stack
     terraform_0_12
-    yarn
     yubikey-manager
     z3
     zlib