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path: root/src/main/java/com/google/devtools/build/lib/rules/cpp/HeaderDiscovery.java
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* Remove some unused extension points.Gravatar Googler2017-11-29
| | | | | RELNOTES: None. PiperOrigin-RevId: 177326265
* Parse /showIncludes output for MSVC compilerGravatar Yun Peng2017-04-25
| | | | | | | | Instead of parsing .d file generated by wrapper script, we directly parse the output of /showIncludes option. Change-Id: Id94e20a5cb05a494a793fd6a43756d44d27cea8a PiperOrigin-RevId: 154161939
* Fix Cpp action cachingGravatar Ulf Adams2017-02-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This combines both previous changes and extends them to work both with and without kchodorow@'s rollout of the exec root rearrangement. Unfortunately, each of these changes individually breaks something somewhere, so they must all go into a single commit. Change 1: CppCompileAction must return false from inputsKnown for .d pruning This is necessary (but not sufficient) for the action cache to work correctly. Consider the following sequence of events: 1. action is executed 2. .d pruning is performed 3. action cache writes entry with post-pruning inputs list 4. action gets regenerated (e.g., due to server restart) 5. the action cache calls inputsKnown(), which returns true 6. action cache checks entry from step 3 against pre-pruning inputs list, which results in a cache miss The action cache needs to know that the current list is not the final list, so inputsKnown() in step 5 must return false if .d pruning is enabled. Change 2: Fix artifact root discovery for external artifacts The SkyframeExecutor was assuming that all exec paths were coming from the main repository. Instead, rely on external exec paths to start with "../". Additional change 3: In addition, update the PackageRootResolverWithEnvironment and the HeaderDiscovery to use the single unified repository name guessing implementation. Previously, the PackageRootResolverWithEnvironment was poisoning the source artifact cache, which then caused subsequent lookups to return a bad artifact. Add a precondition to double-check that artifacts looked up by exec path have the correct source root. For compatibility with kchodorow@'s upcoming exec root refactor, if the exec path starts with "external", then assume it's coming from an external repository. This must be removed when that change is successfully rolled out, or it will break if anyone creates a package called 'external'. Additional change 4: On top of all of that, PackageRootResolverWithEnvironment and SkyframeExecutor must use the same source root computation as the Package class itself. I extracted the corresponding code to Root, and added comments both there and in Package to clearly indicate that these methods have to always be modified in sync. Fixes #2490. -- PiperOrigin-RevId: 148439309 MOS_MIGRATED_REVID=148439309
* Rollback of commit 4b73e972d909bcd533f2f9940f95a00b9b73bdde.Gravatar Dmitry Lomov2017-02-17
| | | | | | | | | | | | | | | | | | | | | | | *** Reason for rollback *** Broke tests on CI: http://ci.bazel.io/job/bazel-tests/570/ *** Original change description *** Roll forward execroot change RELNOTES[INC]: Previously, an external repository would be symlinked into the execution root at execroot/local_repo/external/remote_repo. This changes it to be at execroot/remote_repo. This may break genrules/Skylark actions that hardcode execution root paths. If this causes breakages for you, ensure that genrules are using $(location :target) to access files and Skylark rules are using http://bazel.io/docs/skylark/lib/File.html's path, dirname, etc. functions. Cust... -- PiperOrigin-RevId: 147833177 MOS_MIGRATED_REVID=147833177
* Roll forward execroot changeGravatar Kristina Chodorow2017-02-16
| | | | | | | | | | | | | | | | | RELNOTES[INC]: Previously, an external repository would be symlinked into the execution root at execroot/local_repo/external/remote_repo. This changes it to be at execroot/remote_repo. This may break genrules/Skylark actions that hardcode execution root paths. If this causes breakages for you, ensure that genrules are using $(location :target) to access files and Skylark rules are using http://bazel.io/docs/skylark/lib/File.html's path, dirname, etc. functions. Custom crosstools that hardcode external/<repo> paths will have to be updated. Issue #1262. -- PiperOrigin-RevId: 147726370 MOS_MIGRATED_REVID=147726370
* Make .d file analysis properly mark used module (.pcm) files.Gravatar Googler2016-10-05
| | | | | | | | | | | | | Previously, we thought this wouldn't be necessary, as a change in .pcm would always be accompanied by a corresponding change in a header. However, in the current compile module this isn't true. Modules currently require all transitive modules as inputs even though they might not use a single header from them. Thus, if a module //a depends on a module //b, any change to //b's headers will currently require //a to be rebuilt unless those headers are actually included by //a. This leads to false positive cache results. -- MOS_MIGRATED_REVID=135134348
* Implement input pruning using .d files in objc behind a flag that defaults toGravatar Cal Peyser2016-09-28
| | | | | | | false. -- MOS_MIGRATED_REVID=134452391
* Rollback of commit 82d43279f93d95e4c41b4bc598a3cc05ddd1ae1a.Gravatar Laszlo Csomor2016-09-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | *** Reason for rollback *** Breaks TensorFlow and other Bazel jobs on ci.bazel.io *** Original change description *** Change execution root for external repositories to be ../repo Some of the important aspect of this change: * Remote repos in the execution root are under output_base/execroot/repo_name, so the prefix is ../repo_name (to escape the local workspace name). * Package roots for external repos were previously "output_base/", they are now output_base/external/repo_name (which means source artifacts always have a relative path from their repository). * Outputs are under bazel-bin/external/repo_name/ (or similarly under genfiles). Note that this is a bit of a change from how this was implemented in the previous cl. Fixes #1262. RELNOTES[INC]: Previously, an external repository would be symlinked into the execution root at execroot/local_repo/external/remote_repo. This changes it to be at execroot/remote_repo. This may break genrules/Skylark actions that hardcode execution root paths. If this causes breakages for you, ensure that genrules are using $(location :target) to access files and Skylark rules are using http://bazel.io/docs/skylark/lib/File.html's path, dirname, etc. functions. Roll forward of bdfd58a. -- MOS_MIGRATED_REVID=133709658
* Change execution root for external repositories to be ../repoGravatar Kristina Chodorow2016-09-20
| | | | | | | | | | | | | | | | | | | | | | | Some of the important aspect of this change: * Remote repos in the execution root are under output_base/execroot/repo_name, so the prefix is ../repo_name (to escape the local workspace name). * Package roots for external repos were previously "output_base/", they are now output_base/external/repo_name (which means source artifacts always have a relative path from their repository). * Outputs are under bazel-bin/external/repo_name/ (or similarly under genfiles). Note that this is a bit of a change from how this was implemented in the previous cl. Fixes #1262. RELNOTES[INC]: Previously, an external repository would be symlinked into the execution root at execroot/local_repo/external/remote_repo. This changes it to be at execroot/remote_repo. This may break genrules/Skylark actions that hardcode execution root paths. If this causes breakages for you, ensure that genrules are using $(location :target) to access files and Skylark rules are using http://bazel.io/docs/skylark/lib/File.html's path, dirname, etc. functions. Roll forward of bdfd58a. -- MOS_MIGRATED_REVID=133606309
* Add repository parameter to source artifact resolverGravatar Kristina Chodorow2016-09-09
| | | | | | | Needed for #1262. Doesn't do anything, yet, other than make the CL smaller. -- MOS_MIGRATED_REVID=132671036
* Implement input pruning using .d files in objc.Gravatar Cal Peyser2016-09-09
| | | | | -- MOS_MIGRATED_REVID=132550233
* Rollback of commit 4689c5d1d2faf902846b100b8d858d172a0ceb3d.Gravatar Cal Peyser2016-09-06
| | | | | | | | | | | | | *** Reason for rollback *** Prunes .modulemap files incorrectly. See []. *** Original change description *** Implement input pruning using .d files in objc. -- MOS_MIGRATED_REVID=132246906
* Implement input pruning using .d files in objc.Gravatar Cal Peyser2016-09-06
| | | | | -- MOS_MIGRATED_REVID=132061988
* Description redacted.Gravatar Cal Peyser2016-09-02
| | | | | -- MOS_MIGRATED_REVID=131990160
* Implement input pruning using .d files in objc.Gravatar Cal Peyser2016-09-02
-- MOS_MIGRATED_REVID=131951535
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