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Chris Tate
48cbf3a89e
Every native exe build that the executable cache does not restore hashed each selected runtime artifact before staging it, and every exe build parsed and validated the whole runtime-pack.json manifest to select its artifacts. - Staging still copies each artifact. It skips the SHA-256 of an artifact when the file's identity (device, inode, size, mtime, ctime) is the one recorded the last time that path matched the same size and digest, and the identity does not change while the file is read. Other artifacts are hashed as before, and their identities are recorded after they match. - A pack's selection for a target, compiler version, feature set, flavor and mode is stored, keyed by the file identities of package.json and runtime-pack.json. A stored selection skips parsing and validating the manifest; the manifest is parsed only when a caller needs it, through runtimePackManifest. - The native compiler keeps both in its cache, in the runtime-pack family, which prune covers.