This is required for iOS debug builds, but unused otherwise. In theory,
Android debug builds could be run in this mode, but this is historically
untested and adds unnecessary complexity to the code. If ad-hoc testing
is required, it can be patched in when necessary.
This simplifies tests by allowing the test author to express the outputs
they'd like the snapshotter to generate without creating a whole new
instance and context with the additional overrides.
Also sets the default set of outputs to none, setting them instead in
the setUp function for script snapshotting.
This moves --vm_snapshot_data and --isolate_snapshot_data argument
hardcoding from GenSnapshot (a minimal wrapper around gen_snapshot
invocations) to Snapshotter.buildScriptSnapshot(). These arguments are
present in both AOT and script snapshots, but differ semantically: for
script snapshots they're inputs from the host engine artifacts
directory, for AOT snapshots they're outputs to the build directory.
Adds the app entrypoint as a key in the checksum file.
This change eliminates the assumption that checksummed files change when
the main entrypoint changes. In the case where there are two
entrypoints, a.dart and b.dart and a.dart imports b.dart and b.dart
imports a.dart, building the app with entrypoint a.dart followed by a
build of the app with entrypoint b.dart would result in the same
files list and checksums, but should invalidate the build.
Fix a test for build invalidation due to a change in main entry point.
Previously this test's build was always invalidated to the the lack of a
previous snapshot (as well as the change in checksums). This change
ensures that the build is invalidated only due to the change in
checksums.
Extract a Snapshotter class that can be shared between FLX snapshotting,
AOT snapshotting, and assembly AOT snapshotting. Allows for better
testability of snapshotting logic.
* Extracts script snapshotting used in FLX build.
* Adds tests for snapshot checksumming, build invalidation/skipping.
Remaining work: disentangle + extract AOT snapshotting and Assembly AOT
snapshotting logic from build_aot.dart.
This change re-introduces skipping AOT snapshot builds if input sources
and outputs have not changed since the last snapshot build, assuming a
build for the same platform in the same build mode.
This reverts commit 3d5afb5a81.
It includes the following changes relative to the original:
1. Include the entrypoint source in the checksums
2. include the build mode in the checksums
3. include the target platform in the checksums
This change ensures that snapshot build checksums used to avoid
duplicate builds are invalidated by a change to framework revision
(in case gen_snapshot is updated), as well as by build mode.
Currently, only FLX snapshotting uses checksums to avoid duplicate
builds. FLX snapshotting is always done with BuildMode.debug, so didn't
include build mode in the checksum file.
* Revert "Fix a typo in the saved certificate error message (#11640)"
This reverts commit bfda885a9d.
* Revert "Rollback patch that broke microbenchmarks (#11616)"
This reverts commit 70fe6f4c23.
* Revert "Extract snapshotting logic to Snapshotter class (#11591)"
This reverts commit 309a2d78fb.
* Revert "Minor whitespace formatting fix (#11590)"
This reverts commit bf69c3c69b.
* Revert "Avoid rebuilding snapshots if no change to source (#11551)"
This reverts commit 74835db563.
This change re-introduces skipping snapshot builds if input sources (and
outputs) have not changed since the last snapshot build, with a bugfix
to include the entry-point source in the checksum used to check whether
rebuild can be skipped. This ensures that the following sequence
invalidates the cached build, resulting in two snapshot builds:
flutter build ios lib/foo.dart
flutter build ios lib/bar.dart
This reverts commit 3d5afb5a81.
Previously, the snapshot file was recomputed on every build. We now
record checksums for all snapshot inputs (which are catalogued in the
snapshot dependencies file output alongside the snapshot) and only
rebuild if the checksum for any input file has changed.
