* Avoid templating GitHub Actions workflow

GitHub Actions workflow have sufficient power to express what we need.
We don't need to maintain and additional templating solution on top.

* Add GHC 9.2, bump bounds, fix syntax

* Switch to official haskell image

* Always run cli tests for ghc 8.2 and above

* Remove step to regenerate GitHub Actions workflows

* Fix missed reference to GHC version

* Fix yaml syntax

* Fix type in the GHC version

* More CI changes

- Run bootstrap.yml on ubuntu-latest
- Use explicit matrix for linux.yml
- Drop containers in favour of haskell setup action
- Drop workaround for ancient git

* Remove unneeded package from CI setup

I belive this is only necessary to run `cabal man` which we do not in
the CI.

* Drop old GHCs from the CI

* Switch macos.yml to haskell/action/setup

Also add the same GHC versions as Linux.

* Simplify CI

- Remove cabal-plan, we actually never call it (I think)
- Remove vendored cabal-doctest
- Remove few stray allow-newer clauses no longer necessary, apparently

Originally done by @gbaz in PR #7907.

* Mark GHC 9.2.1 as experimental

* Remove reference to cabal-plan from validate.sh

* setup-haskell action already runs cabal update

* Add missing build matrix in test-windows-dogfood

* Replace cabal-plan list-bin with cabal list-bin

* Enable caching in the CI

* Fix typo

* Remove continue-on-error until I figure it out

* Keep naming consistent

* Temporarily disable 8.0.2 on macos

* Add missing step id

* Tweaks

Remove workaround for nektos/act, it accidentally sneaked in.

* More tweaks

* Tweaks

* Restore cabal-plan, temporarily mark everything experimental

cabal list-bin doesn't seem to work like cabal-plan does.

* Tweaks

* Ensure cabal-plan executable gets built

* Install automake on MacOS

* Tweaks

* Tweaks

Link experimental flags to relative GitHub issues

* Fix typo

* Restructures the `cabal init` command to fix historical
  issues. All flags are preserved.
  * Codebases for interactive and non-interactive flags
    are disentangled.
  * Data structures now exploit relevant stanza structure
    and formatters only care about stanza data
  * Heuristics and prompts have a pure and impure implementation.

* Sets default behavior to be `--interactive` as opposed to
  `--non-interactive`.

* Rewrites tests to achieve 98% coverage
  * Golden files now test every stanza individually
  * Every flag is covered by a unit test
  * Interactive, simple, and non-interactive workflows are
    covered.

* Add Setup.hs for `cabal-install-solver`
* Update `cabal.project` pkg path for `cabal-install-solver`

The are various motivation points:
- I'm not aware anyone third party running Cabal tests (maybe nixpkgs?)
- No need to do gen-extra-source-files, as Cabal-tests is not distributed
- No multiple rebuilds of Cabal-QuickCheck, Cabal-tree-diff
- Slightly smaller Cabal sdist (which is quite big still)

Move Described functionality there, out of Cabal the library.
Similarly cabal-install doesn't contain Described instances,
they are only in tests.

Move Cabal instances from cabal-install TreeDiffInstances into it.
Remove defaultToExprViaShow to get better diffs and dumps

Also rename Cabal-QuickCheck (proper case), and add GenericArbitrary
module there.

... which may become a package we upload

Oleg Grenrus authored 6 years ago and Mikhail Glushenkov committed 6 years ago

Remove unix constraint from cabal.project

(cherry picked from commit 6797a9e5)

- Disable cabal-install's haddock on CI
- Temporarily disable cabal check (`-main-is` in tests)
- Remove this is not a lib note
- Tell to run git update-index --assume-unchanged

    ... when changing to -dev or -monolithic configuration.

    Run --no-assume-unchanged unconditionally, when
    changing to the production build.
- Improve auto-gen note in cabal-install.cabal
- Try to build haddock (with GHC-8.4.3 only)

Oleg Grenrus authored 7 years ago and Mikhail Glushenkov committed 7 years ago

(cherry picked from commit 9dde6816)

This script contains similar commands to appveyor.yml, except it relies
on cabal new-build, so should be safe to run locally.

Using this script can ease Travis stress.

ATM I see following tests failing:

- PackageTests/Backpack/Includes3/setup-external-ok.test.hs
    - https://github.com/haskell/cabal/issues/5039
- PackageTests/CustomPlain/setup.test.hs
    - `<command line>: cannot satisfy -package-id Cabal-2.1.0.0-inplace`
- PackageTests/CustomDep/sandbox.test.hs
    - `.../dist-sandbox-3402c05b/setup/setup: createProcess: runInteractiveProcess: exec: permission denied (Permission denied)`

Also undo a change committed by mistake.

[ci skip]

The issue is fixed now.

Should unbork the test suite.

This benchmark is based off of a script written by @kosmikus.  It adds
functionality for running multiple trials for each package, but it is currently
missing other features.

Committed by accident as part of
45fb7929.