Move the code for collecting package information to a separate method.

Reorder code so that local functions come before the high-level algorithm.

Consolidate package related information in getPackageConfigs into a single struct.

Remove unused function.

Refactor removeConfig with filterInPlace.

Add filterInPlace utility function. ...

Note: this function should probably be added to Phobos eventually.

Fix parameter naming convention.

Merge pull request #2905 from dlang/speed_up_config_resolution ...

Speed up configuration resolution

Merge pull request #2907 from ibuclaw/merge_stable ...

merge stable

Merge remote-tracking branch 'upstream/stable' into merge_stable

update version to v1.38.0-beta.1

Merge remote-tracking branch 'upstream/master' into stable

Avoid visiting packages more than once in checkPacksRec.

Avoid linear time edge list construction. ...

Uses a set to determine redundant edge entries instead of iterating through the list.

Reduce allocation overhead in determineDependencyConfigs.

Avoid linear lookup and name allocations in Project.getDependency.

Avoid linear time haveConfig.

Use package indices instead of names or Package instances to identify packages. ...

Avoids costly AA lookups and string comparisons.

Avoid re-allocating allconfigs_path in determineAllConfigs.

Avoid re-allocating the AA for isReachableByAllParentPacks for every call.

Eliminate edges in the configuration graph in-place. ...

Avoids reallocating the edges array every time the configuration resolution eliminates a configuration.

Cache various package information to reduce GC allocations in getPackageConfigs. ...

Package.name and Package.getAllDependencies both need to reallocate their return value for every call, which results in heavy GC pressure during the configuration resolution algorithm.

Merge pull request #2904 from shoo/fix_testcases ...

Fix glitches in testcases

Fix test for windows environment without git bash

Fix dll build for windows

Fix configuration of test directories that should not be direct

Fix for when DPAHT is configured in a docker environment

Fix failed to remove temporary directories

Fix test cases that fail to listen

Add .gitignore settings