feat(ql3): establish 3.0 incubation baseline

back/runtime/compatibility/legacyTaskRevision.ts

@@ -0,0 +1,48 @@
+import { createHash } from 'crypto';
+
+export interface LegacyTaskRevisionInput {
+  command: string;
+  schedule?: string;
+  extraSchedules?: readonly string[];
+  taskBefore?: string;
+  taskAfter?: string;
+  workDirectory?: string;
+  logName?: string;
+  environmentRevision?: string;
+  sourceRevision?: string;
+}
+
+export function createLegacyLogArtifactId(logPath: string): string {
+  return `legacy-log:${createHash('sha256')
+    .update(logPath)
+    .digest('hex')
+    .slice(0, 25)}`;
+}
+
+export function createLegacyTaskRevision(
+  input: LegacyTaskRevisionInput,
+): string {
+  const snapshot = {
+    schema: 1,
+    command: input.command,
+    ...(input.schedule === undefined ? {} : { schedule: input.schedule }),
+    ...(input.extraSchedules === undefined
+      ? {}
+      : { extraSchedules: [...input.extraSchedules] }),
+    ...(input.taskBefore === undefined ? {} : { taskBefore: input.taskBefore }),
+    ...(input.taskAfter === undefined ? {} : { taskAfter: input.taskAfter }),
+    ...(input.workDirectory === undefined
+      ? {}
+      : { workDirectory: input.workDirectory }),
+    ...(input.logName === undefined ? {} : { logName: input.logName }),
+    ...(input.environmentRevision === undefined
+      ? {}
+      : { environmentRevision: input.environmentRevision }),
+    ...(input.sourceRevision === undefined
+      ? {}
+      : { sourceRevision: input.sourceRevision }),
+  };
+  return `sha256:${createHash('sha256')
+    .update(JSON.stringify(snapshot))
+    .digest('hex')}`;
+}