We can infer identifer, we don't need to specify it (vercel#2032)

.github/workflows/release.yml

@@ -7,26 +7,18 @@ on:
   workflow_dispatch:
     inputs:
       increment:
-        description: 'SemVer Increment'
+        description: "SemVer Increment"
         required: true
-        default: 'prerelease'
+        default: "prerelease"
         type: choice
         options:
-        - prerelease
-        - prepatch
-        - preminor
-        - premajor
-        - patch
-        - minor
-        - major
-      identifier:
-        description: 'npm Tag'
-        required: true
-        default: 'canary'
-        type: choice
-        options:
-        - canary
-        - latest
+          - prerelease
+          - prepatch
+          - preminor
+          - premajor
+          - patch
+          - minor
+          - major
 jobs:
   build:
     runs-on: macos-latest
@@ -70,7 +62,7 @@ jobs:
 
       - name: Version
         run: |
-          ./scripts/version.js ${{ inputs.increment }} ${{ inputs.identifier }}
+          ./scripts/version.js ${{ inputs.increment }}
           cat version.txt
 
       - name: Release

scripts/version.js

@@ -6,15 +6,15 @@ const semver = require("semver");
 
 // These values come from the invocation of release.
 const increment = process.argv[2];
-const identifier = process.argv[3];
 
 // Now we get the current version of the package.
 const versionFilePath = path.join(__dirname, "..", "version.txt");
 const versionFileContents = fs.readFileSync(versionFilePath, "utf-8");
 const [currentVersion] = versionFileContents.split("\n");
 
 // Now that we know current state, figure out what the target state is.
-// The `identifier` is unused unless the increment is `pre____`.
+// If we're doing a "pre" release, set the identifier to canary
+const identifier = increment.startsWith("pre") ? "canary" : "latest";
 const newVersion = semver.inc(currentVersion, increment, identifier);
 
 // Parse the output semver identifer to identify which npm tag to publish to.