Commit graph

4 commits

Author SHA1 Message Date
Bob Badour
a6ee6d5511 Fix tests so they can fail.
Expected values were overwriting actual values.

Origin no longer tracked.

Bug: 261787132

Test: m droid dist

Test: m compliance_checkshare

Change-Id: Ie1fbc3d596cb08c6f0935a79441d8b00a4d1eb97
2023-01-04 00:01:03 +00:00
Bob Badour
103eb0f9bc Performance and scale.
Defer edge creation.

Don't create edges until the count is known to avoid repeated allocate+
copy operatios.

Limit resolutions.

Allow only a single resolution condition set per target, and overwrite
intermediate results. Reduces memory and obviates allocations.

Propagate fewer conditions.

Instead of propagating notice conditions to parents in graph during
initial resolve, leave them on leaf node, and attach to ancestors in
the final walk. Reduces copies.

Parallelize resolutions.

Use goroutines, mutexes, and waitgroups to resolve branches of the
graph in parallel. Makes better use of available cores.

Don't accumulate resolutions inside non-containers.

During the final resolution walk, only attach actions to ancestors from
the root down until the 1st non-aggregate. Prevents an explosion of
copies in the lower levels of the graph.

Drop origin for scale.

Tracking the origin of every potential origin for every restricted
condition does not scale. By dropping origin, propagating from top
to bottom can prune many redundant paths avoiding an exponential
explosion.

Conditions as bitmask.

Use bit masks for license conditions and condition sets. Reduces maps
and allocations.

Bug: 68860345
Bug: 151177513
Bug: 151953481

Test: m all
Test: m systemlicense
Test: m listshare; out/soong/host/linux-x86/bin/listshare ...
Test: m checkshare; out/soong/host/linux-x86/bin/checkshare ...
Test: m dumpgraph; out/soong/host/linux-x86/dumpgraph ...
Test: m dumpresolutions; out/soong/host/linux-x86/dumpresolutions ...

where ... is the path to the .meta_lic file for the system image. In my
case if

$ export PRODUCT=$(realpath $ANDROID_PRODUCT_OUT --relative-to=$PWD)

... can be expressed as:

${PRODUCT}/gen/META/lic_intermediates/${PRODUCT}/system.img.meta_lic

Change-Id: Ia2ec1b818de6122c239fbd0824754f1d65daffd3
2022-01-11 10:40:50 -08:00
Bob Badour
9ee7d03e1c compliance package policy and resolves
package to read, consume, and analyze license metadata and dependency
graph.

Bug: 68860345
Bug: 151177513
Bug: 151953481

Change-Id: Ic08406fa2250a08ad26f2167d934f841c95d9148
2021-12-03 15:52:48 -08:00
Bob Badour
a99ac620dd compliance package structures for license metadata
package to read, consume, and analyze license metadata and dependency
graph.

Bug: 68860345
Bug: 151177513
Bug: 151953481
Change-Id: I3ebf44e4d5195b9851fd076161049bf82ed76dd2
2021-12-03 15:52:48 -08:00