* Test case for bug #875 (virtual crate environment)

* Fix for test on Windows

* Alr.Commands.Init: fix .gitignore for bin crates

* Alr.Commands.Init: fix .gitignore directory patterns

We only want to mach directories at the same level as .gitignore.

* Alr.Commands.Exec: new command to run executables/scripts in the Alire context

* Alr.Commands: add support for aliases

* Alr.Commands: Use CLIC parse before -- option

Global switches must come before command. (#850) (369c7ec).

* CI workflow using Alire toolchain and `alr build`

* Sync pins of aaa, clic to match submodules

* Update CLIC dependency to avoid build failure on older GNAT versions

* Alr.Commands.Run: remove useless "use all type"

* Bump version for 1.1 release

* Switch index branch to stable-1.1

* Update CLIC to v0.1.1

* Alr.Commands: use CLIC.TTY selection/detection of Is_TTY for the Trace package

* Revamped `alr version` output

* New test to verify basic `alr version` operation

* Cosmetic tweaks

* Tweaks for old tests

commit 81d28cdbb9ea9f128658754a7ca008f3949ea070
Author: Alejandro R. Mosteo <amosteo@unizar.es>
Date:   Wed Sep 15 17:50:45 2021 +0200

    Fix regression in migration to CLIC.Config

commit ede072fcfe0a44e2f09e5ecc5272c29cb7120ad5
Merge: 7e01a362 ff02df63
Author: Alejandro R. Mosteo <amosteo@unizar.es>
Date:   Wed Sep 15 17:22:44 2021 +0200

    Merge #847

commit 7e01a3627f52820251249161bc2af86f904bd393
Merge: d9b14be6 b9239853
Author: Alejandro R. Mosteo <amosteo@unizar.es>
Date:   Wed Sep 15 17:19:42 2021 +0200

    Merge #848

commit d9b14be69af23313974051bc9a7bbf5fbd29ac80
Merge: 74a40736 954135ad
Author: Alejandro R. Mosteo <amosteo@unizar.es>
Date:   Wed Sep 15 17:18:31 2021 +0200

    Merge #846

commit 74a4073606843f18798503444f5f0a058e347e36
Merge: cb50222d b86d79dc
Author: Alejandro R. Mosteo <amosteo@unizar.es>
Date:   Wed Sep 15 17:09:24 2021 +0200

    Merge #844

commit cb50222dfa01774a256dc91d6256dc92fb595e88
Merge: 4c86b8d8 e921ea3b
Author: Alejandro R. Mosteo <amosteo@unizar.es>
Date:   Wed Sep 15 17:08:53 2021 +0200

    Merge #845

commit ff02df63
Author: Alejandro R Mosteo <alejandro@mosteo.com>
Date:   Wed Sep 15 13:44:03 2021 +0200

    New On_Demand action type (#847)

    * New On_Demand action for future-proofing

    * Test for on-demand actions

commit b9239853
Author: Fabien Chouteau <Fabien-Chouteau@users.noreply.github.com>
Date:   Tue Sep 14 15:58:16 2021 +0200

    Alire.Config.Edit: fix for --config with relative path (#848)

commit 954135ad
Author: Alejandro R Mosteo <alejandro@mosteo.com>
Date:   Tue Sep 14 10:04:43 2021 +0200

    Checks on compatibility of tools given via `--select <release>` (#846)

    * Don't present incompatible tools in the assistant

    * Sort gnats by version in the assistant

    Rather than by name

    * Detect origin conflicts in `alr toolchain --select <>`

    * Use already configured tool origin as filter

    * New test for checks on --select <releases>

    * Self-review tweaks

commit b86d79dc
Author: Alejandro R Mosteo <alejandro@mosteo.com>
Date:   Tue Sep 14 10:03:54 2021 +0200

    Don't present incompatible tools in the assistant (#844)

commit e921ea3b
Author: Alejandro R Mosteo <alejandro@mosteo.com>
Date:   Tue Sep 14 10:00:38 2021 +0200

    Sort GNATs by version in the assistant (#845)

    Rather than by name

* Update CLIC deps: Global switches are now only accepted before the subcommand

* Alr.Commands.Build: forward subcommand args to gprbuild

This will allow for instance:
$ alr build -f               # force build
$ alr build -cargs -g        # compile with an extra switch
$ alr build -f -u atomic.adb # only compile atomic.adb

This is exposing more of the gprbuild interface in an Alire workflow.
But I see this as a convenient development trick, and the standard "alr
build" command without extra args should always be enough to build a
crate.

https://github.com/alire-project/alire/issues/698

* Alr.Commands.Clean: fix -X switch handling

The variable Alr.commands.Scenario was hidden by
Alr.Commands.Clean.Scenario.

* Document changes

* scripts/ci-github.sh: move alr global switches

* Alire.Spawn: typo

* New On_Demand action for future-proofing

* Test for on-demand actions

* Don't present incompatible tools in the assistant

* Sort gnats by version in the assistant

Rather than by name

* Detect origin conflicts in `alr toolchain --select <>`

* Use already configured tool origin as filter

* New test for checks on --select <releases>

* Self-review tweaks

Rather than by name

* Port to `ada_toml` for TOML 1.0

* Better check in scenario loader

Merge changes since rc2 into 1.1 branch for rc3