fix #1392 - env var replacement not supporting `${VAR_NAME}` syntax ...

- simplified and cleaner env var replacement using
  straighforward regex replaceAll
- support ${MY_VAR}suffix replacements

Support more vars in build settings ...

fixes dlang/dub#1447

remove regular upgrade check ...

- avoids "build" failures due to connectivity issues or pending dependency conflicts
- `dub build --nodeps` now only suppresses resolution of missing dependencies
- add an explicit `dub upgrade --dry-run` to check for new packages

Split-up package suppliers into individual modules

Rename Path to NativePath. ...

Matches the changes done in vibe.d 0.8.x and vibe-core.

Perform package linting only for packages in the current project.

Fix recursive package validation.

Merge pull request #1194 from dlang/warn_wrong_sub_configs ...

Output a warning for sub configurations that have no effect.
merged-on-behalf-of: Sönke Ludwig <s-ludwig@users.noreply.github.com>

Clean up imports

Improve warning messages.

Output a warning for sub configurations that have no effect. ...

Using a warning instead of an error to avoid breaking existing packages.

Remove all trailing whitespace ...

> sed 's/[ \t]*$//' -i **/*.d

Skip special compiler flag linting for dependencies. ...

This avoids outputting warnings for every build for packages that are not necessarily controlled by the root package author.

Just mark eliminated configurations instead of shrinking the configuration array. ...

This avoids some overhead, as well as any possible index adjustment omissions in the code.

When eliminating configurations, also remove any configurations that can subsequently not be satisfied. ...

WIP: this could remove wrong configurations because the stored configuration indices might not be up to date anymore after the recursion returns.

Small diagnostics improvement.

Fix typos.

Add Project.overrideConfiguration.

implement globbing for sourceFiles

Treat selected optional dependencies as "desired". Fixes #990. ...

Previously, any non-default optional dependency was treated as expendable, even if explicitly selected in dub.selections.json. This meant that it wouldn't be downloaded and included in the build process.

Fix collecting path based sub package + base package dependencies. Fixes #959. ...

Having a sub package dependency followed by a dependency to the base package of the sub package incorrectly tried to obtain the base package as a sub package with an empty name.

Reduce log noise.

Eliminate use of Json.opDispatch. ...

(cherry picked from commit bf65c40)

Perform dependency resolution for missing default optional dependencies. ...

If no dub.selections.json file exists, trigger dependency resolution if a default optional dependency is missing.

Only resolve dependencies if necessary. Fixes #831. ...

This avoids the default dependency resolution pass to search for missing dependencies if all dependencies are satisfied already.

Remove deprecated functionality to prepare for 1.0.0.

Make listBuildSettings work for "target-type" and targetType none packages.

Merge pull request #807 from dlang/issue813-missing-selected-dependency ...

Fix #803 - failure to select or collect sub package dependencies

Use .byKey instead of .keys. ...

(cherry picked from commit c0850e2)

Fix sub package resolution for dependencies with a fixed selection. Fixes #803.