Backport-PR-URL: #32608
PR-URL: #31153
Reviewed-By: Christian Clauss <cclauss@me.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

Add jobs to our GitHub Actions workflow to run our
various lint Makefile targets. The `setup-node` action
used to run the JavaScript linter contains problem
matchers for eslint that will annotate the files in a pull
request if there are failures.

Backport-PR-URL: #32608
PR-URL: #31323
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

The CI workflow doesn't use the matrix strategy so there is no
`${{ matrix.node-version }}` variable to use in the `Use Node.js`
step names.

Backport-PR-URL: #32608
PR-URL: #31323
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

Backport-PR-URL: #32608
PR-URL: #31327
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Minwoo Jung <nodecorelab@gmail.com>
Reviewed-By: Anto Aravinth <anto.aravinth.cse@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>

The setup-node GitHub Action installs problem matchers that happen
to match the warning message format of Visual Studio's C/C++ compiler.
This is resulting in all of our pull requests being annotated with
`Unchanged files with check annotations` which are confusing to new
contributors as they are not due to the changes in the pull request.

The action is used to run `npx envinfo` to dump some information into
the logs before the actual build. All GitHub hosted runners already
have a version of Node.js installed (12.x at the time of this commit)
which we can use to run `envinfo`. Remove the action to avoid using
the problematic problem matcher.

Backport-PR-URL: #32608
PR-URL: #31349
Fixes: #31347
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Sam Roberts <vieuxtech@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Rich Trott <rtrott@gmail.com>

Backport-PR-URL: #32608
PR-URL: #31504
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>

Add a problem matcher for output from remark-lint to our lint-md GitHub
Actions CI workflow so that any markdown linter failures are annotated
in the pull request in the web UI.

Signed-off-by: Richard Lau <riclau@uk.ibm.com>

Backport-PR-URL: #32608
PR-URL: #32391
Refs: https://github.com/actions/toolkit/blob/master/docs/problem-matchers.md
Refs: https://github.com/actions/toolkit/blob/master/docs/commands.md#problem-matchers
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Matheus Marchini <mat@mmarchini.me>

GitHub Actions is running all tests already present on Travis, as well
as building on more platforms (OS X and Windows). With Travis we're also
getting timeouts more frequently than with Actions, which gives the
false impression tests are failing (making it harder to triage PRs ready
to merge).

To make our config simpler, CI.yml and pythonpackage.yml got merged. The
coverage is also increased by running tests on OS X.

Signed-off-by: Matheus Marchini <mmarchini@netflix.com>

Backport-PR-URL: #32608
PR-URL: #32450
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Christian Clauss <cclauss@me.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Ben Coe <bencoe@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Michaël Zasso <targos@protonmail.com>