REQUIREMENTS are now really important

[jayvdb]

Recently released dependency_management 0.4.0 has lots of lovely new features, and we must use them.

There is a coala core change planning to use REQUIREMENTS or the bear wont run. That will be a huge breaking change, unless we have high quality REQUIREMENTS that cater for all users (Win, macOS, Linux - all distros).

Most important is using AnyOneOfRequirements to have multiple different ways to find an executable, including ... ExecutableRequirement

Old Haskell PRs:

• HaskellLintBear.py: Import CabalRequirement #1378 - HaskellLint @ankit01ojha
• GhcModBear.py: Add DistributionRequirement #1385 - GhcMod @IncorrectUsername
• ShellCheck: Add DistributionRequirement #1496 - ShellCheck @naveentata

Old Rust PRs:

• Rust Clippy #1467 Rust Clippy @rubdos

Other old issues:

• JuliaLintBear: Use JuliaRequirement #1613 - JuliaLintBear @prakashdanish : PR JuliaLintBear.py: Use JuliaRequirement #1661

New issues

• LuaLintBearTest: Replace DistributionRequirement with LuarocksRequirement #1652 - LuaLintBear @yash-nisar
• CheckstyleBear: Add MavenRequirement #1653 - CheckstyleBear Mavan @jayvdb
• ScalaLintBear: Add support for fetching scalalint using Maven #1654 - ScalaLintBear Mavan @Shade5
• Use PythonImportRequirement #1655 - Use PythonImportRequirement @arjunsinghy96
• Use CondaRequirment somewhere #1656 - Use CondaRequirment @yash-nisar
• Add ComposerRequirement #1657 - Use ComposerRequirement @damngamerz
• Remove flag and repo from RscriptRequirement constructors #1658 - Fix RscriptRequirement usage @yash-nisar
• Update all DistributionRequirements replacing apt_get with default package #1659 - Add more distros to DistributionRequirement @jayvdb
• JavaPMDBear: Add support for fetching PMD using Maven #1662 - JavaPMDBear Mavan @Techievena
• CPDBear: Add support for fetching CPD using Maven #1663 - CPDBear Mavan
• DartLintBear: Add DistributionRequirement for brew package #1664 - DartLintBear Brew
• VHDLLintBear: Add DistributionRequirement for package perl #1665 - VHDLLintBear Perl
• TailorBear: Add DistributionRequirement for brew package #1666 - TailorBear Brew @SacredWKnight

[Mixih]

@Mixih [note to self keep: an eye on this]

[jayvdb]

Here are the errors in the current bears auto-dependency checking on openSUSE : https://travis-ci.org/jayvdb/coala/builds/226033302