[WIP] Invoke the Swift frontend to prescan for dependencies. #47
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Add a new flag -driver-prebuild-module-dependencies to instruct the driver to have the Swift frontend prescan for dependencies, which will allow the driver to explicitly schedule builds for both Swift and C modules, eliminating the need for the frontend to rebuild those modules when it tries to import them. This allows for an overall more coordinated build. At present, this WIP invokes the Swift frontend and then parses the JSON before dumping out the dependency graph, so it's not actually useful for anything.
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This utilizes the fast dependency scanning work in the Swift compiler itself (swiftlang/swift#28515), which is also a work in progress. |
artemcm
added a commit
to artemcm/swift-driver
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May 18, 2020
This PR resurrects swiftlang#47 and builds on top of it. Adds new flag -driver-print-module-dependencies-jobs to instruct the driver to scan for dependencies and generate build jobs for each dependent Swift or C module. At present, this WIP does the following: - Invoke the Swift frontend Fast Dependency Scanner to prescan for dependencies. - Construct a Module Dependency Graph from the dependency scanner's JSON output. - Compute the order in which dependent modules should be built. - Generate and print build jbos for each dependent module. Next Steps: Actually have the driver schedule and execute the dependent module build jobs ahead of time, eliminating the need to re-build those modules when it tries to import them.
artemcm
added a commit
to artemcm/swift-driver
that referenced
this pull request
May 18, 2020
This PR resurrects swiftlang#47 and builds on top of it. Adds new flag -driver-print-module-dependencies-jobs to instruct the driver to scan for dependencies and generate build jobs for each dependent Swift or C module. At present, this WIP does the following: - Invoke the Swift frontend Fast Dependency Scanner to prescan for dependencies. - Construct a Module Dependency Graph from the dependency scanner's JSON output. - Compute the order in which dependent modules should be built. - Generate and print build jbos for each dependent module. Next Steps: Actually have the driver schedule and execute the dependent module build jobs ahead of time, eliminating the need to re-build those modules when it tries to import them.
artemcm
added a commit
to artemcm/swift-driver
that referenced
this pull request
May 18, 2020
This PR resurrects swiftlang#47 and builds on top of it. Adds new flag -driver-print-module-dependencies-jobs to instruct the driver to scan for dependencies and generate build jobs for each dependent Swift or C module. At present, this WIP does the following: - Invoke the Swift frontend Fast Dependency Scanner to prescan for dependencies. - Construct a Module Dependency Graph from the dependency scanner's JSON output. - Compute the order in which dependent modules should be built. - Generate and print build jbos for each dependent module. Next Steps: Actually have the driver schedule and execute the dependent module build jobs ahead of time, eliminating the need to re-build those modules when it tries to import them.
artemcm
added a commit
to artemcm/swift-driver
that referenced
this pull request
May 18, 2020
This PR resurrects swiftlang#47 and builds on top of it. Adds new flag -driver-print-module-dependencies-jobs to instruct the driver to scan for dependencies and generate build jobs for each dependent Swift or C module. At present, this WIP does the following: - Invoke the Swift frontend Fast Dependency Scanner to prescan for dependencies. - Construct a Module Dependency Graph from the dependency scanner's JSON output. - Compute the order in which dependent modules should be built. - Generate and print build jbos for each dependent module. Next Steps: Actually have the driver schedule and execute the dependent module build jobs ahead of time, eliminating the need to re-build those modules when it tries to import them.
artemcm
added a commit
to artemcm/swift-driver
that referenced
this pull request
May 19, 2020
This PR resurrects swiftlang#47 and builds on top of it. Adds new flag -driver-print-module-dependencies-jobs to instruct the driver to scan for dependencies and generate build jobs for each dependent Swift or C module. At present, this WIP does the following: - Invoke the Swift frontend Fast Dependency Scanner to prescan for dependencies. - Construct a Module Dependency Graph from the dependency scanner's JSON output. - Compute the order in which dependent modules should be built. - Generate and print build jbos for each dependent module. Next Steps: Actually have the driver schedule and execute the dependent module build jobs ahead of time, eliminating the need to re-build those modules when it tries to import them.
artemcm
added a commit
to artemcm/swift-driver
that referenced
this pull request
May 20, 2020
This PR resurrects swiftlang#47 and builds on top of it. Adds new flag -driver-print-module-dependencies-jobs to instruct the driver to scan for dependencies and generate build jobs for each dependent Swift or C module. At present, this WIP does the following: - Invoke the Swift frontend Fast Dependency Scanner to prescan for dependencies. - Construct a Module Dependency Graph from the dependency scanner's JSON output. - Compute the order in which dependent modules should be built. - Generate and print build jbos for each dependent module. Next Steps: Actually have the driver schedule and execute the dependent module build jobs ahead of time, eliminating the need to re-build those modules when it tries to import them.
artemcm
added a commit
to artemcm/swift-driver
that referenced
this pull request
May 20, 2020
This PR resurrects swiftlang#47 and builds on top of it. Adds new flag -driver-print-module-dependencies-jobs to instruct the driver to scan for dependencies and generate build jobs for each dependent Swift or C module. At present, this WIP does the following: - Invoke the Swift frontend Fast Dependency Scanner to prescan for dependencies. - Construct a Module Dependency Graph from the dependency scanner's JSON output. - Generate and print build jbos for each dependent module. Next Steps: Actually have the driver schedule and execute the dependent module build jobs ahead of time, eliminating the need to re-build those modules when it tries to import them.
artemcm
added a commit
to artemcm/swift-driver
that referenced
this pull request
May 20, 2020
This PR resurrects swiftlang#47 and builds on top of it. Adds new flag -driver-print-module-dependencies-jobs to instruct the driver to scan for dependencies and generate build jobs for each dependent Swift or C module. At present, this WIP does the following: - Invoke the Swift frontend Fast Dependency Scanner to prescan for dependencies. - Construct a Module Dependency Graph from the dependency scanner's JSON output. - Generate and print build jbos for each dependent module. Next Steps: Actually have the driver schedule and execute the dependent module build jobs ahead of time, eliminating the need to re-build those modules when it tries to import them.
artemcm
added a commit
to artemcm/swift-driver
that referenced
this pull request
May 20, 2020
This PR resurrects swiftlang#47 and builds on top of it. Adds new flag -driver-print-module-dependencies-jobs to instruct the driver to scan for dependencies and generate build jobs for each dependent Swift or C module. At present, this WIP does the following: - Invoke the Swift frontend Fast Dependency Scanner to prescan for dependencies. - Construct a Module Dependency Graph from the dependency scanner's JSON output. - Generate and print build jbos for each dependent module. Next Steps: Actually have the driver schedule and execute the dependent module build jobs ahead of time, eliminating the need to re-build those modules when it tries to import them.
artemcm
added a commit
to artemcm/swift-driver
that referenced
this pull request
May 21, 2020
This PR resurrects swiftlang#47 and builds on top of it. Adds new flag -driver-print-module-dependencies-jobs to instruct the driver to scan for dependencies and generate build jobs for each dependent Swift or C module. At present, this WIP does the following: - Invoke the Swift frontend Fast Dependency Scanner to prescan for dependencies. - Construct a Module Dependency Graph from the dependency scanner's JSON output. - Generate and print build jbos for each dependent module. Next Steps: Actually have the driver schedule and execute the dependent module build jobs ahead of time, eliminating the need to re-build those modules when it tries to import them.
artemcm
added a commit
to artemcm/swift-driver
that referenced
this pull request
May 21, 2020
This PR resurrects swiftlang#47 and builds on top of it. Adds new flag -driver-print-module-dependencies-jobs to instruct the driver to scan for dependencies and generate build jobs for each dependent Swift or C module. At present, this WIP does the following: - Invoke the Swift frontend Fast Dependency Scanner to prescan for dependencies. - Construct a Module Dependency Graph from the dependency scanner's JSON output. - Generate and print build jbos for each dependent module. Next Steps: Actually have the driver schedule and execute the dependent module build jobs ahead of time, eliminating the need to re-build those modules when it tries to import them.
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Add a new flag
-driver-prebuild-module-dependenciesto instruct the driverto have the Swift frontend prescan for dependencies, which will allow the
driver to explicitly schedule builds for both Swift and C modules,
eliminating the need for the frontend to rebuild those modules when it
tries to import them. This allows for an overall more coordinated
build.
At present, this WIP invokes the Swift frontend and then parses the
JSON before dumping out the dependency graph, so it's not actually
useful for anything.