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feat(javascript): recover code-split bundles from multiple inputs (#1686)

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* feat(javascript): recover code-split bundles from multiple inputs

recover_javascript_sources accepted a single path, and
validateModuleSet bound every module's provenance to that one snapshot.
A code-split app (runtime + chunks, or an Electron main/preload/renderer
set) had to be recovered one file per call, and modules recovered alone
could not resolve imports across chunks: cross-chunk require(id)
references stayed as numeric ids with property reads.

Add an optional additional_paths input. The listed files are
concatenated, in order after path, into the single engine snapshot, so
one Wakaru run sees every module and cross-chunk imports resolve.
validateModuleSet's single-snapshot binding is unchanged. Module
provenance is attributed back to the input file its first extraction
range starts in, with byte ranges rebased to that file's own offsets;
a module whose ranges cross an input boundary keeps the concatenated
snapshot identity and offsets, recorded as an explicit limitation.
Single-path behavior is byte-for-byte unchanged (one segment,
offset 0).

Fixes #1605

* fix(javascript): preserve source identity in multi-input recovery

---------

Co-authored-by: JingHao-Leon <w15909130000@gmail.com>
Co-authored-by: morluto <76467478+morluto@users.noreply.github.com>
This commit is contained in:
JingHao-Leon
2026-10-11 18:39:49 +08:00
committed by GitHub
parent ce845ba428
commit 12c416005f
23 changed files with 695 additions and 121 deletions
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src/contracts/javascript/javascriptRecoveryToolContracts.ts
+13 -1
View File
@@ -13,7 +13,7 @@ export const JAVASCRIPT_RECOVERY_TOOL_CONTRACTS = [
...toolContractMetadata("recover_javascript_sources"),
kind: "application",
description:
"Recover readable modules from one local UTF-8 JavaScript script/bundle into an absent directory, using caller-supplied Wakaru ^1.13.0 (verified with 1.14.0) on Linux x64. Returns original/derived digests, extraction byte ranges, emitted source maps, warnings and analysis_input inline. Structural splitting may fall back to one module; original names and runtime equivalence remain unknown. No application code execution. Requires util-linux prlimit; one worker, 1 GiB address-space ceiling, 120-second deadline, 64 MiB input, 128 MiB output, 10000 entries and 8 MiB per diagnostic/report stream.",
"Recover readable modules from local UTF-8 JavaScript scripts/bundles into an absent directory, using caller-supplied Wakaru ^1.13.0 (verified with 1.14.0) on Linux x64. Use additional_paths for related chunks; each input retains its own snapshot and provenance. Returns original/derived digests, extraction byte ranges, emitted source maps, warnings and analysis_input inline. Structural splitting may fall back to one module; original names and runtime equivalence remain unknown. No application code execution. Requires util-linux prlimit; one worker, 1 GiB address-space ceiling, 120-second deadline, 64 MiB total input, 128 MiB output, 10000 entries and 8 MiB per diagnostic/report stream.",
inputSchema: javascriptRecoveryInputSchema,
outputSchema: evidenceResultOf(javascriptRecoveryResultSchema),
examples: [
@@ -24,6 +24,18 @@ export const JAVASCRIPT_RECOVERY_TOOL_CONTRACTS = [
output_directory: "/tmp/recovered-app",
},
},
{
title: "Recover a code-split bundle together",
input: {
path: "/tmp/web-scripts/main.js",
additional_paths: [
"/tmp/web-scripts/runtime.js",
"/tmp/web-scripts/shared.js",
"/tmp/web-scripts/checkout.chunk.js",
],
output_directory: "/tmp/recovered-chunks",
},
},
],
},
] as const satisfies readonly ToolContract[];