Add file-based transfer APIs to build cache provider interface and all cache plugins#5746

Merged

iclanton merged 56 commits into

mainfrom

copilot/stream-cache-entry-for-http-plugin

Jul 17, 2026

Commits on Apr 8, 2026

feat: add streaming support to build cache provider interface and HTTP plugin

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fix lint warnings, add change files and API report update

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address code review feedback: improve type annotations and JSDoc

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Replace manual change files with rush change --bulk generated change file

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Use createReadStream/createWriteStream from FileSystem instead of fs directly

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Use ensureFolderExists option in FileSystem.createWriteStream

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Add streaming support to Amazon S3 and Azure Storage build cache plugins

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Address code review: add documentation for type assertion and no-retry streaming upload

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Gate streaming build cache behind useStreamingBuildCache experiment flag

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Update changelogs.
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Expand FileSystem.createWriteStream.
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Use destructuring on rushConfiguration in PhasedScriptAction.
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Clean up some duplicated types.
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Fix CI: add missing useStreamingBuildCache to bridge plugin, fix WebClient private member type mismatch

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DRY up duplicated code across WebClient, AmazonS3Client, and HttpBuildCacheProvider

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Address code review: use Buffer.isBuffer for clearer body length check

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Change streaming cache APIs from Readable to NodeJS.ReadableStream

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DRY up Azure/HTTP cache providers, fix bridge plugin experiment config

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Clean up FileSystemBuildCacheProvider.
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fixup! Fix CI: add missing useStreamingBuildCache to bridge plugin, fix WebClient private member type mismatch
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Clean up WebClient.
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Handle Content-Encoding decompression in streaming WebClient path

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Fix error message to show specific unsupported encoding value

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Fix CI: Move WebClient private members to module-level for rush-sdk type compatibility

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Address review comments: fix response.resume race, stream retry bug, error logging, stream cleanup, and nits

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Add unit tests for streaming cache APIs and fill buffer-based test gaps

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Fix buffer path error message to show specific unsupported encoding value

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claude
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Extract _getObjectName and _validateWriteAllowed helpers in S3 provider

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claude
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Extract _getContentEncodings helper to deduplicate encoding parsing

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claude
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Scope cacheEntryBuffer to its branch, use cloudCacheHit flag

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Reuse a single WebClient instance in HttpBuildCacheProvider

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Use property shorthand in HttpBuildCacheProvider

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Fix unit test issues in streaming cache tests

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Rework streaming cache APIs to file-based APIs with S3 payload signing

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Rename file-based cache APIs to tryDownload/tryUpload for clarity

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Replace jest.mock('node:fs') with FileSystem spies in cache tests

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Clean up partial file on failed cache download

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Ensure parent directory exists before Azure downloadToFile

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fixup! Ensure parent directory exists before Azure downloadToFile
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Update change file descriptions, Azure JSDoc, and test names

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Fix S3 retry delay log unit from seconds to milliseconds

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fixup! Rework streaming cache APIs to file-based APIs with S3 payload signing
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Add missing test coverage for file-based cache APIs

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Fix "unknown bytes" debug log wording in HttpBuildCacheProvider

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Address dmichon-msft review comments

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Commits on Jun 26, 2026

Commits on Jul 15, 2026

Merge main into branch and resolve build cache conflicts
Copilot
authored

Commits on Jul 16, 2026

Fix unresolved streaming cache review comments
Copilot
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Commits on Jul 17, 2026

Fix atomic cloud cache download writes
Copilot
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