feat(ci): accept latest and trunk as wp-version

.github/workflows/ci-test-build-artifact.yml

@@ -24,7 +24,10 @@ on:
         type: string
         default: ""
       wp-version:
-        description: "WordPress version wp-env boots with. 'latest' uses the newest stable release."
+        description: >-
+          WordPress core wp-env boots: 'latest' (newest stable release), 'trunk' (development
+          version, which also skips wp doctor's core-verify-checksums), or a WordPress/WordPress tag
+          such as '6.8.3' (x.y.0 releases are tagged 'x.y').
         type: string
         default: "latest"
       install-path:
@@ -113,7 +116,9 @@ jobs:
             --arg php "$PHP_VERSION" \
             --arg dest "${INSTALL_PATH%/}/${SLUG}" \
             '{
-               core: (if $wp == "latest" then null else "WordPress/WordPress#\($wp)" end),
+               core: (if $wp == "latest" then null
+                      elif $wp == "trunk" then "WordPress/WordPress#master"
+                      else "WordPress/WordPress#\($wp)" end),
                phpVersion: $php,
                plugins: [],
                themes: [],
@@ -148,7 +153,9 @@ jobs:
       - name: Run wp doctor
         shell: bash
         env:
-          DOCTOR_IGNORE_CHECKS: ${{ inputs.doctor-ignore-checks }}
+          DOCTOR_IGNORE_CHECKS: >-
+            ${{ inputs.wp-version == 'trunk' && format('{0},core-verify-checksums', inputs.doctor-ignore-checks)
+            || inputs.doctor-ignore-checks }}
         run: |
           set -euo pipefail
 

.github/workflows/ci-test-php.yml

@@ -17,8 +17,9 @@ on:
         default: ""
       wp-version:
         description: >-
-          WordPress core version for wp-env, e.g. '6.8' (resolved as WordPress/WordPress#<version>).
-          Empty uses the version from the consumer's .wp-env.json. Ignored when use-wp-env is false.
+          WordPress core for wp-env: 'latest' (newest stable release), 'trunk' (development
+          version), or a WordPress/WordPress tag such as '6.8.3' (x.y.0 releases are tagged 'x.y').
+          Empty uses the consumer's .wp-env.json. Ignored when use-wp-env is false.
         type: string
         default: ""
       use-wp-env:
@@ -48,9 +49,14 @@ jobs:
     # Pin the wp-env container's PHP/WordPress core via env: (not $GITHUB_ENV, which is
     # newline-injectable) at job scope, so start/run/stop resolve the same environment.
     # An empty WP_ENV_CORE is ignored by wp-env (falls back to the consumer's .wp-env.json).
+    # So 'latest' needs a real source (latest.zip), not an empty value.
     env:
       WP_ENV_PHP_VERSION: ${{ inputs.use-wp-env && inputs.php-version || '' }}
-      WP_ENV_CORE: ${{ (inputs.use-wp-env && inputs.wp-version != '') && format('WordPress/WordPress#{0}', inputs.wp-version) || '' }}
+      WP_ENV_CORE: >-
+        ${{ (inputs.use-wp-env && inputs.wp-version != '') && (
+        inputs.wp-version == 'latest' && 'https://wordpress.org/latest.zip'
+        || inputs.wp-version == 'trunk' && 'WordPress/WordPress#master'
+        || format('WordPress/WordPress#{0}', inputs.wp-version)) || '' }}
     defaults:
       run:
         working-directory: ${{ inputs.working-dir }}

.github/workflows/wp-ci.yml

@@ -39,7 +39,11 @@ on:
         type: string
         default: '["8.3"]'
       wp-versions:
-        description: "JSON array of WordPress core versions for wp-env, crossed with php-versions, e.g. '[\"6.8\",\"6.9\"]'. An empty-string entry uses .wp-env.json. Ignored when use-wp-env is false."
+        description: >-
+          JSON array of WordPress core versions for wp-env, crossed with php-versions, e.g.
+          '["6.8","latest","trunk"]'. 'latest' is the newest stable release and 'trunk' the
+          development version. An empty-string entry uses .wp-env.json. Ignored when use-wp-env
+          is false.
         type: string
         default: '[""]'
       test-php-exclude: