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.

Respect skipRegistry value from configuration files ...

Currently, the skipRegistry value in configuration files is ignored,
the final value is either the one the user passed on the command line,
which is the intended behavior, or the value `none` if the user didn't
pass a --skip-registry argument.

This commit fixes this by introducing the new value `default_` to the
SkippackageSuppliers enum to know when the user didn't pass the
skip-registry argument and the value should be taken from the
configuration files.

Signed-off-by: Andrei Horodniceanu <a.horodniceanu@proton.me>

Merge pull request #2897 from atilaneves/parse-module ...

Speed up module parsing with hand-written parser

Improve the output when the subcommand is not found ...

Sort subcommands based on similarity.

Prune the result of `Package.getAllDependenciesRange`

Return early from determineDependencyConfigs if possible ...

The only package that can have a config already created is the root
package, and only if the `config` parameter isn't an empty string.
Every other package is in the `configs` array iff it was added by
a previous call to this function. The exact same configurations
will be found if this function is called again for the same (p, c)
pair and it will do needless work that won't modify anything.

Fix bug

Remove abandoned registry mirrors. ...

Both of these have not been working for a long time now.

Handle non-ASCII characters

Handle /++ ++/

Handle underscores

Speed up module parsing with hand-written parser

update version to v1.37.0

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

update version to v1.37.0-rc.1

Change all references to std.file in commandline to FQN ...

This makes it more visible where std.file is used, as we want
to reduce the number of places we do I/O, and as we have
two ways to do I/O in Dub.

Trivial: Simplify ensureDirectory ...

mkdirRecurse will not do anything if the directory already exists,
so there is no need to call existsDirectory.

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

Let unittest use PackageManager.store ...

No need to mock, all filesystem functions have been mocked
by the PackageManager now.

VFS: Implement file attributes ...

To more accurately reflect the real filesystem,
we now support the access and modification times
for FSEntry.

update version to v1.37.0-beta.1