Keep logging functionality out of the public API as requested in https://github.com/dlang/dub/pull/2124#issuecomment-813016939.

New logging module - initial functionality ...

The new module replaces dub.internal.vibecompat.core.log by using the
same function names, but implementing colored output and the left
fixed-width tag. Overloaded functions are provided to output colored
text.

Still missing initLogging() and non-TTY stdout/stderr detection

compilers: Change lflagsToDFlags to avoid scope escape ...

If 'in' implies 'scope', then the parameter is being escaped.

Merge pull request #2259 from rikkimax/fix-issue2258 ...

Fix issue 2258 where dependency target binaries are not copied

Signed-off-by: Nicholas Wilson <thewilsonator@users.noreply.github.com>
Merged-on-behalf-of: Nicholas Wilson <thewilsonator@users.noreply.github.com>

Refactor checks for platform is Windows into a method on BuildPlatform

Add support for coverage at compile-time (CTFE)

Adapt determinePlatform to the new defaults for Win32 ...

Starting with DMD 2.099, `-m32` defaults to MsCOFF instead of OMF and
`-m32omf` is required to use the OMF format + OPTLINK.

This commit changes the logic to select the appropriate logic based
on the current compiler version. Potentially using the wrong object file
format during platform probing is fine because the codegen is skipped
(dmd is invoked with `-c -o-`).

Print architecture when unittest fails

add UnsupportedArchitecture/CompilerException ...

for API purposes to not match on string prefixes

Add environment variables to BuildSettings (#2121)

Add lowmem for settings

Remove unused imports.

Remove unused selective imports. These are private imports of symbols that do not occur elsewhere in the file, so they are safe to be removed.

Extend 'linker dflags' detection for DMD ...

-betterC, -L… and -Xcc=… influence linking.

Improve 'linker-D-flag' detection for ldmd2 ...

ldmd2 supports all ldc2 ones.

Make {DMD,LDC}Compiler.isLinkerDFlag() public ...

E.g., this is useful for Reggae too.

Replace occurences of 'in ref' with 'const scope ref' ...

In support for dlang/dmd#11000

Add architecture x86_omf for windows-dmd

Add support for iOS/tvOS/watchOS

[dip1000] Fix compilation and test it on Travis CI

Fix linking shared libs with ldmd2 and gdmd

Improve cross-compilation support (replace `version` checks by BuildPlatform runtime checks) ...

Also fixes #1249. For LDC as implicit cross compiler, the file
extensions for libraries and object files etc. don't depend on the
compiler, but solely on the target. Targets selected with `--arch` are
correctly probed by dub, so that the parsed `BuildPlatform` represents
the target platform.

`alias Nullable.get this` will soon be deprecated. Use `.get`.

fix #1003 - Check empty ldflags

Use -dumpfullversion to determine GDC version

Windows: Don't use Optlink by default (#1661) ...

Windows: Don't use Optlink by default
merged-on-behalf-of: Sebastian Wilzbach <sebi.wilzbach@gmail.com>

Perform the tool chain checks based on the compiler name. ...

Gets rid of the additional methods in the Compiler interface and moves the checks to a more central location, since other generators apart from BuildGenerator might want to perform the checks in the future. Also keeps the API "package" for now to avoid adding insufficiently though-out public APIs.

Change toolchainRequirements fields to Dependency. ...

Also removes some API clutter from Compiler and PackageRecipe.

toolchainRequirements recipe support

Merge pull request #1542 from ohdatboi/implement_1427 ...

Add betterC build option