build(npm): watch script

Adds a top level watch script that invokes the package
level scripts for watching all Typescript sources and
automatically recompiling them whenever their contents change.

It also watches the openapi.json files so if you edit one
of those the API client code will automatically get
regenerated as well.

The big deal here with this feature is that it reduces
the time it takes for a change to compile from minutes
to seconds on average which is great, especially when
you are working from a machine with weaker hardware not
the top of the line stuff.

Future possible improvement is to also run the unit
tests upon every successful compilation as well.

To use it, just run this in the project root directory:

```sh
npm run watch
```

Fixes #149

Signed-off-by: Peter Somogyvari <[email protected]>

Author: petermetz

.gitignore

@@ -40,3 +40,4 @@ lerna-debug.log
 cactus-openapi-spec.json
 cactus-openapi-spec-*.json
 .npmrc
+*.log

examples/cactus-example-supply-chain-backend/package.json

@@ -14,6 +14,7 @@
   "bin": "./dist/lib/main/typescript/supply-chain-app-cli.js",
   "scripts": {
     "tsc": "tsc --project ./tsconfig.json",
+    "watch": "npm-watch",
     "webpack": "npm-run-all webpack:dev webpack:prod",
     "webpack:dev": "npm-run-all webpack:dev:node webpack:dev:web",
     "webpack:dev:web": "webpack --env=dev --target=web --config ../../webpack.config.js",
@@ -22,6 +23,21 @@
     "webpack:prod:web": "webpack --env=prod --target=web --config ../../webpack.config.js",
     "webpack:prod:node": "webpack --env=prod --target=node --config ../../webpack.config.js"
   },
+  "watch": {
+    "tsc": {
+      "patterns": [
+        "src/",
+        "src/*/json/**/openapi*"
+      ],
+      "ignore": [
+        "src/**/generated/*"
+      ],
+      "extensions": ["ts", "json"],
+      "quiet": true,
+      "verbose": false,
+      "runOnChangeOnly": true
+    }
+  },
   "engines": {
     "node": ">=10",
     "npm": ">=6"

examples/cactus-example-supply-chain-business-logic-plugin/package.json

@@ -15,6 +15,7 @@
     "generate-sdk": "openapi-generator generate --input-spec src/main/json/openapi.json -g typescript-axios -o ./src/main/typescript/generated/openapi/typescript-axios/",
     "tsc": "tsc --project ./tsconfig.json",
     "pretsc": "npm run generate-sdk",
+    "watch": "npm-watch",
     "webpack": "npm-run-all webpack:dev webpack:prod",
     "webpack:dev": "npm-run-all webpack:dev:node webpack:dev:web",
     "webpack:dev:web": "webpack --env=dev --target=web --config ../../webpack.config.js",
@@ -23,6 +24,21 @@
     "webpack:prod:web": "webpack --env=prod --target=web --config ../../webpack.config.js",
     "webpack:prod:node": "webpack --env=prod --target=node --config ../../webpack.config.js"
   },
+  "watch": {
+    "tsc": {
+      "patterns": [
+        "src/",
+        "src/*/json/**/openapi*"
+      ],
+      "ignore": [
+        "src/**/generated/*"
+      ],
+      "extensions": ["ts", "json"],
+      "quiet": true,
+      "verbose": false,
+      "runOnChangeOnly": true
+    }
+  },
   "engines": {
     "node": ">=10",
     "npm": ">=6"