perf: reuse selfmedia build environment

scripts/src/selfmedia-config.ts

@@ -33,6 +33,12 @@ export interface SelfMediaDeliveryTarget {
     readonly dockerfile: string;
     readonly imageRepository: string;
     readonly networkMode: string;
+    readonly envReuse: {
+      readonly enabled: true;
+      readonly mode: "buildkit-state-host-path";
+      readonly statePath: string;
+      readonly identityFiles: readonly string[];
+    };
     readonly proxy: Record<string, unknown>;
   };
   readonly gitops: Record<string, unknown> & {
@@ -144,6 +150,7 @@ function parseDeliveryTarget(id: string, value: Record<string, unknown>): SelfMe
   const ci = record(value.ci, `${path}.ci`);
   const source = record(value.source, `${path}.source`);
   const build = record(value.build, `${path}.build`);
+  const envReuse = record(build.envReuse, `${path}.build.envReuse`);
   const proxy = record(build.proxy, `${path}.build.proxy`);
   const gitops = record(value.gitops, `${path}.gitops`);
   const deployment = record(value.deployment, `${path}.deployment`);
@@ -161,6 +168,12 @@ function parseDeliveryTarget(id: string, value: Record<string, unknown>): SelfMe
   validateAccessSecret(deployment, `${path}.deployment`);
   const gitopsWriteUrl = text(gitops.writeUrl, `${path}.gitops.writeUrl`);
   if (!gitopsWriteUrl.startsWith("http://gitea-http.")) throw new Error(`${path}.gitops.writeUrl must use internal Gitea authority`);
+  if (boolean(envReuse.enabled, `${path}.build.envReuse.enabled`) !== true) throw new Error(`${path}.build.envReuse.enabled must be true`);
+  const envReuseMode = text(envReuse.mode, `${path}.build.envReuse.mode`);
+  if (envReuseMode !== "buildkit-state-host-path") throw new Error(`${path}.build.envReuse.mode must be buildkit-state-host-path`);
+  const identityFiles = stringArray(envReuse.identityFiles, `${path}.build.envReuse.identityFiles`)
+    .map((item, index) => relativePath(item, `${path}.build.envReuse.identityFiles[${index}]`));
+  if (identityFiles.length === 0 || new Set(identityFiles).size !== identityFiles.length) throw new Error(`${path}.build.envReuse.identityFiles must be non-empty and unique`);
   return {
     id,
     node: id,
@@ -190,6 +203,12 @@ function parseDeliveryTarget(id: string, value: Record<string, unknown>): SelfMe
       dockerfile: relativePath(build.dockerfile, `${path}.build.dockerfile`),
       imageRepository: text(build.imageRepository, `${path}.build.imageRepository`),
       networkMode: text(build.networkMode, `${path}.build.networkMode`),
+      envReuse: {
+        enabled: true,
+        mode: "buildkit-state-host-path",
+        statePath: absolutePath(envReuse.statePath, `${path}.build.envReuse.statePath`),
+        identityFiles,
+      },
       proxy: structuredClone(proxy),
     },
     gitops: {