feat(plugins/plugin-core-support): add minimum version check to IBM CodeEngine prereq checker

part of #8216

Author: starpit

plugins/plugin-core-support/up/src/Checker.ts

@@ -26,7 +26,7 @@ export type CheckerArgs<O extends ParsedOptions = ParsedOptions> = Pick<
 >
 
 export type CheckResultSuccess = true | string
-export type CheckResult = CheckResultSuccess | false
+export type CheckResult = CheckResultSuccess | { ok: boolean; message: string } | false
 
 export type Stdout = NodeJS.WriteStream & NodeJS.WritableStream
 

plugins/plugin-core-support/up/src/ibm/cli/ce.ts

@@ -28,7 +28,16 @@ async function check(args: Arguments) {
         Object.assign({}, args, { command: 'ibmcloud plugin show code-engine --output json' })
       )
     )
-    return `v${Version.Major}.${Version.Minor}.${Version.Build}`
+
+    const version = `v${Version.Major}.${Version.Minor}.${Version.Build}`
+    if (Version.Major < 1 || Version.Minor < 6) {
+      return {
+        ok: false,
+        message: `Your IBM Cloud CodeEngine CLI plugin is too old. Got ${version}. Expected >= 1.6.0`
+      }
+    } else {
+      return version
+    }
   } catch (err) {
     return false
   }

plugins/plugin-core-support/up/src/ui.ts

@@ -53,10 +53,12 @@ type Status = { ok: boolean; message: string }
 
 async function toStatus(checker: Checker, checkResultP: ReturnType<Checker['check']>): Promise<Status> {
   const checkResult = await checkResultP
-  return {
-    ok: typeof checkResult === 'string' || checkResult === true,
-    message: formatLabel(checker, checkResult)
-  }
+  return typeof checkResult === 'object'
+    ? checkResult
+    : {
+        ok: typeof checkResult === 'string' || checkResult === true,
+        message: formatLabel(checker, checkResult)
+      }
 }
 
 export default async function doCheck<T extends CheckResult>(
@@ -127,7 +129,7 @@ function listrTaskForChecker(
               }
             })
             .catch(err => {
-              ctx[idx] = { ok: false }
+              ctx[idx] = { ok: false, message: err.message }
               obs.error(err)
             })
             .finally(() => obs.complete())