Fetch Mandoline components from Google Storage as needed.
Proof-of-concept for fetching optional components.
Return LocalFetcher redirect URLs for missing components.
This uses NetworkFetcher to access Google Storage files:
https://pantheon.corp.google.com/storage/browser/mandoline/
For example, delete pdf_viewer.mojo locally, and run:
$ mandoline http://www.pdf995.com/samples/pdf.pdf --predictable-app-filenames
TODO: Integrate with Mandoline's component updater? crbug.com/479169
TODO: Integrate with planned Omaha fetcher and updater work.
TODO: Support fetching apps with resource files.
TODO: Handle broken URLs. (unavailable component files, etc.)
TODO: Avoid kPredictableAppFilenames switch? (need executable bit set)
BUG=479169
TEST=Mandoline can fetch the pdf_viewer as needed.
R=ben@chromium.org
Review URL: https://codereview.chromium.org/1442203002
Cr-Commit-Position: refs/heads/master@{#360735}
CrOS-Libchrome-Original-Commit: d629d1b58c5d54b9827d9fc753a53c0d60851261
4 files changed