migrations: apiVersion 0.0.5 => 0.0.6

Author: tilacog

src/migrations/mapping_api_version_0_0_5.js

@@ -0,0 +1,74 @@
+const fs = require('fs-extra')
+const semver = require('semver')
+const toolbox = require('gluegun/toolbox')
+const yaml = require('js-yaml')
+const { loadManifest } = require('./util/load-manifest')
+const { getGraphTsVersion } = require('./util/versions')
+
+// If any of the manifest apiVersions are 0.0.5, replace them with 0.0.6
+module.exports = {
+  name: 'Bump mapping apiVersion from 0.0.5 to 0.0.6',
+  predicate: async ({ sourceDir, manifestFile }) => {
+    // Obtain the graph-ts version, if possible
+    let graphTsVersion
+    try {
+      graphTsVersion = await getGraphTsVersion(sourceDir)
+    } catch (_) {
+      // If we cannot obtain the version, return a hint that the graph-ts
+      // hasn't been installed yet
+      return 'graph-ts dependency not installed yet'
+    }
+
+    let manifest = loadManifest(manifestFile)
+    return (
+      // Only migrate if the graph-ts version is >= 0.23.0...
+      // Coerce needed because we may be dealing with an alpha version
+      // and in the `semver` library this would not return true on equality.
+      semver.gte(semver.coerce(graphTsVersion), '0.23.0') &&
+      // ...and we have a manifest with mapping > apiVersion = 0.0.5
+      manifest &&
+      typeof manifest === 'object' &&
+      Array.isArray(manifest.dataSources) &&
+      (manifest.dataSources.reduce(
+        (hasOldMappings, dataSource) =>
+          hasOldMappings ||
+          (typeof dataSource === 'object' &&
+            dataSource.mapping &&
+            typeof dataSource.mapping === 'object' &&
+            dataSource.mapping.apiVersion === '0.0.5'),
+        false,
+      ) ||
+        (Array.isArray(manifest.templates) &&
+          manifest.templates.reduce(
+            (hasOldMappings, template) =>
+              hasOldMappings ||
+              (typeof template === 'object' &&
+                template.mapping &&
+                typeof template.mapping === 'object' &&
+                template.mapping.apiVersion === '0.0.5'),
+            false,
+          )))
+    )
+  },
+  apply: async ({ manifestFile }) => {
+    // Make sure we catch all variants; we could load the manifest
+    // and replace the values in the data structures here; unfortunately
+    // writing that back to the file messes with the formatting more than
+    // we'd like; that's why for now, we use a simple patching approach
+    await toolbox.patching.replace(
+      manifestFile,
+      new RegExp('apiVersion: 0.0.5', 'g'),
+      'apiVersion: 0.0.6',
+    )
+    await toolbox.patching.replace(
+      manifestFile,
+      new RegExp("apiVersion: '0.0.5'", 'g'),
+      "apiVersion: '0.0.6'",
+    )
+    await toolbox.patching.replace(
+      manifestFile,
+      new RegExp('apiVersion: "0.0.5"', 'g'),
+      'apiVersion: "0.0.6"',
+    )
+  },
+}