Added and tweaked the method of reporting makefile targets

[rkazak]

Added a target into the make file to be able to report available targets within the makefile. This was a tweak of something I saw on - https://stackoverflow.com/questions/4219255/how-do-you-get-the-list-of-targets-in-a-makefile

This help us by documenting known targets.

[codecov-io]

Codecov Report

Merging #1277 (3fed932) into master (ad2bc6a) will increase coverage by 27.27%.
The diff coverage is n/a.

❗ Current head 3fed932 differs from pull request most recent head 97a08d9. Consider uploading reports for the commit 97a08d9 to get more accurate results

@@             Coverage Diff             @@
##           master    #1277       +/-   ##
===========================================
+ Coverage   26.25%   53.53%   +27.27%     
===========================================
  Files         263      289       +26     
  Lines       18947    20851     +1904     
===========================================
+ Hits         4975    11163     +6188     
+ Misses      13201     7939     -5262     
- Partials      771     1749      +978     

Flag	Coverage Δ
cluster	45.07% <ø> (?)
dm	26.61% <ø> (?)
integrate	48.04% <ø> (+31.55%)	⬆️
playground	3.10% <ø> (?)
tiup	16.37% <ø> (-0.13%)	⬇️
unittest	22.73% <ø> (-0.03%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
cmd/root.go	75.82% <0.00%> (-1.50%)	⬇️
components/dm/ansible/import.go	62.69% <0.00%> (-0.58%)	⬇️
cmd/mirror.go	48.40% <0.00%> (-0.29%)	⬇️
pkg/logger/debug.go	16.66% <0.00%> (ø)
components/playground/instance/process.go	0.00% <0.00%> (ø)
components/playground/instance/tikv_config.go	0.00% <0.00%> (ø)
pkg/cluster/operation/download.go	36.84% <0.00%> (ø)
components/playground/instance/pd.go	0.00% <0.00%> (ø)
pkg/cluster/operation/systemd.go	70.00% <0.00%> (ø)
components/playground/instance/instance.go	0.00% <0.00%> (ø)
... and 207 more

---

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[AstroProfundis]

Seems this only work when the locale is C (and maybe other English locales).

$ env LANG=zh_CN.UTF-8 make targets
Target                         Description
------                         -----------
$ env LANG=C make targets
Target                         Description
------                         -----------
bench                          build the tiup-bench component
build                          build tiup and all it's components
build_integration_test         run the playground, cluster, and dm integration tests.
build_tiup_cluster_test        run the tiup-cluster tests
build_tiup_dm_test             run the tiup-dm tests
build_tiup_playground_test     run the tiup-playground tests
build_tiup_test                run the tiup tests
check                          run all checkers. (fmt, lint, tidy, check-static and vet)
check-static                   run the golangci-lint static check tool
clean                          run the build cleanup steps
client                         build the tiup-client component
cluster                        build the tiup-cluster component
components                     build the playground, client, cluster, dm, bench and server components
ctl                            build the tiup-ctl component
default                        run the checks and then build.
dm                             build the tiup-dm component
doc                            build the tiup-doc component
errdoc                         build the tiup-errdoc component
failpoint-disable              disable failpoint
failpoint-enable               enable failpoint
fmt                            run the go formatter utility
lint                           run the lint checker revive
playground                     build tiup-playground component
race                           run race check with failpoint enabled
run-tests                      run the unit tests
server                         build the tiup-server component
test                           run tests with failpoint enabled
tidy                           run tidy check
tiup                           build the tiup driver
tools/bin/failpoint-ctl        build the failpoint-ctl utility
tools/bin/golangci-lint        pull in specific version of golangci-lint (v1.38.0)
tools/bin/revive               build revive utility
unit-test                      run the code coverage test phase
vet                            run the go vet tool

[AstroProfundis]

I went a quick test and can confirms that adding an LANG=C line just above the targets target would do the trick.

[lucklove]

/lgtm

[ti-chi-bot]

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• lucklove

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[lucklove]

/merge

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: 97a08d9