Added various NPM scripts.

npm/npm-get-next-branched-version/action.yaml

@@ -0,0 +1,59 @@
+name: npm-get-next-branched-version
+description: "Get the next version of an NPM package based on the current branch status."
+inputs:
+  name:
+    description: "The name of the package."
+    required: true
+  defaultVersion:
+    description: "Default version to use."
+    required: true
+    default: "1.0.0"
+  registry:
+    description: "NPM registry URL."
+    required: false
+    default: "https://npm.pkg.github.com"
+  authToken:
+    description: "Authentication token for the registry."
+    required: true
+  prerelease:
+    description: "Query prerelease packages. Values: true, false."
+    required: false
+    default: "${{ github.event_name == 'pull_request' }}"
+outputs:
+  latestVersion:
+    description: "The current latest version for the package."
+    value: ${{ steps.npm.outputs.version || steps.npmFallback.outputs.version }}
+  nextVersion:
+    description: "The next version for the package."
+    value: ${{ steps.version.outputs.nextVersion }}
+runs:
+  using: "composite"
+  steps:
+  - name: "Get the base version for the package."
+    uses: act/common/utils/version-increment-branch@master
+    id: base
+    with:
+      version: ${{ inputs.defaultVersion }}
+  - uses: act/common/npm/npm-query-versions-latest@master
+    id: npm
+    with:
+      name: ${{ inputs.name }}
+      registry: ${{ inputs.registry }}
+      authToken: ${{ inputs.authToken }}
+      filter: ^${{ steps.base.outputs.baseVersion }}
+      prerelease: ${{ inputs.prerelease }}
+  - name: "If no version is found, get the latest version for the package if we didn't already look for it."
+    uses: act/common/npm/npm-query-versions-latest@master
+    id: npmFallback
+    if: ${{ steps.npm.outputs.version == '' && inputs.prerelease != 'false' }}
+    with:
+      name: ${{ inputs.name }}
+      registry: ${{ inputs.registry }}
+      authToken: ${{ inputs.authToken }}
+      filter: ^${{ steps.base.outputs.majorMinorPatchVersion }}
+      prerelease: "false"
+  - name: "Get the next version for the package."
+    uses: act/common/utils/version-increment-branch@master
+    id: version
+    with:
+      version: ${{ steps.npm.outputs.version || steps.npmFallback.outputs.version || inputs.defaultVersion }}