refactor: consolidate version finding across version strategies

[rgee0]

Description

Initially there was a single version strategy of 'github' which meant the location was standardised. Then came k8s as a version strategy which took a different approach and so needed a different implementation. Later came Gitlab which required another implementation.

This change consolidates the various release finding approaches into a single function, which varied based on attributes held about the release 'platform'.

As a demonstration of the benefit of the approach GitLab has been added as a release platform and the GitLab CLI which is hosted on gitlab has been added as a tool - superseding #1122

Motivation and Context

• I have raised an issue to propose this change, which has been given a label of design/approved by a maintainer (required)
  Fixes Add glab cli support #1119
  Closes feat: add glab cli #1122

How Has This Been Tested?

Functional

• GitLab as a target:

➜  arkade git:(refactorVersionStrategy) ✗ ./arkade get glab           
Downloading: glab
2024/10/24 08:57:38 Looking up version for glab
2024/10/24 08:57:38 Found: v1.48.0
Downloading: https://gitlab.com/gitlab-org/cli/-/releases/v1.48.0/downloads/glab_1.48.0_darwin_arm64.tar.gz
8.58 MiB / 8.58 MiB [------------------------------------------------------------------------] 100.00%
/var/folders/22/3b_f27kj3s37lbfqz_fq44jw0000gp/T/arkade-2393411434/glab_1.48.0_darwin_arm64.tar.gz written.
2024/10/24 08:57:45 Extracted: /var/folders/22/3b_f27kj3s37lbfqz_fq44jw0000gp/T/arkade-2393411434/glab
2024/10/24 08:57:45 Copying /var/folders/22/3b_f27kj3s37lbfqz_fq44jw0000gp/T/arkade-2393411434/glab to /Users/rgee0/.arkade/bin/glab

Wrote: /Users/rgee0/.arkade/bin/glab (26.39MB)

# Add arkade binary directory to your PATH variable
export PATH=$PATH:$HOME/.arkade/bin/

# Test the binary:
/Users/rgee0/.arkade/bin/glab

# Or install with:
sudo mv /Users/rgee0/.arkade/bin/glab /usr/local/bin/

👏 Say thanks for arkade and sponsor Alex via GitHub: https://github.com/sponsors/alexellis

• k8s as a target:

➜  arkade git:(refactorVersionStrategy) ✗ ./arkade get kubectl
Downloading: kubectl
2024/10/24 08:59:08 Looking up version for kubectl
2024/10/24 08:59:08 Found: v1.31.2
Downloading: https://dl.k8s.io/release/v1.31.2/bin/darwin/arm64/kubectl
53.94 MiB / 53.94 MiB [----------------------------------------------------------------------] 100.00%
/var/folders/22/3b_f27kj3s37lbfqz_fq44jw0000gp/T/arkade-3928752036/kubectl written.
2024/10/24 08:59:43 Copying /var/folders/22/3b_f27kj3s37lbfqz_fq44jw0000gp/T/arkade-3928752036/kubectl to /Users/rgee0/.arkade/bin/kubectl

Wrote: /Users/rgee0/.arkade/bin/kubectl (56.56MB)

# Add arkade binary directory to your PATH variable
export PATH=$PATH:$HOME/.arkade/bin/

# Test the binary:
/Users/rgee0/.arkade/bin/kubectl

# Or install with:
sudo mv /Users/rgee0/.arkade/bin/kubectl /usr/local/bin/

👏 Say thanks for arkade and sponsor Alex via GitHub: https://github.com/sponsors/alexellis

• GitHub as a target:

➜  arkade git:(refactorVersionStrategy) ✗ ./arkade get doctl  
Downloading: doctl
2024/10/24 09:00:32 Looking up version for doctl
2024/10/24 09:00:32 Found: v1.116.0
Downloading: https://github.com/digitalocean/doctl/releases/download/v1.116.0/doctl-1.116.0-darwin-arm64.tar.gz
14.93 MiB / 14.93 MiB [-----------------------------------------------------------------------------------] 100.00%
/var/folders/22/3b_f27kj3s37lbfqz_fq44jw0000gp/T/arkade-1576317659/doctl-1.116.0-darwin-arm64.tar.gz written.
2024/10/24 09:00:46 Extracted: /var/folders/22/3b_f27kj3s37lbfqz_fq44jw0000gp/T/arkade-1576317659/doctl
2024/10/24 09:00:46 Copying /var/folders/22/3b_f27kj3s37lbfqz_fq44jw0000gp/T/arkade-1576317659/doctl to /Users/rgee0/.arkade/bin/doctl

Wrote: /Users/rgee0/.arkade/bin/doctl (33.42MB)

# Add arkade binary directory to your PATH variable
export PATH=$PATH:$HOME/.arkade/bin/

# Test the binary:
/Users/rgee0/.arkade/bin/doctl

# Or install with:
sudo mv /Users/rgee0/.arkade/bin/doctl /usr/local/bin/

👏 Say thanks for arkade and sponsor Alex via GitHub: https://github.com/sponsors/alexellis

make e2e

➜  arkade git:(refactorVersionStrategy) ✗ make e2e > test.out 
CGO_ENABLED=0 go test github.com/alexellis/arkade/pkg/get -cover --tags e2e -v
PASS
coverage: 61.3% of statements
ok  	github.com/alexellis/arkade/pkg/get	13.181s	coverage: 61.3% of statements

test-tool.sh glab

➜  arkade git:(refactorVersionStrategy) ✗ ./hack/test-tool.sh glab                 
+ ./arkade get glab --arch arm64 --os darwin --quiet
+ file /Users/rgee0/.arkade/bin/glab
/Users/rgee0/.arkade/bin/glab: Mach-O 64-bit executable arm64
+ rm /Users/rgee0/.arkade/bin/glab
+ echo

+ ./arkade get glab --arch x86_64 --os darwin --quiet
+ file /Users/rgee0/.arkade/bin/glab
/Users/rgee0/.arkade/bin/glab: Mach-O 64-bit executable x86_64
+ rm /Users/rgee0/.arkade/bin/glab
+ echo

+ ./arkade get glab --arch x86_64 --os linux --quiet
+ file /Users/rgee0/.arkade/bin/glab
/Users/rgee0/.arkade/bin/glab: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), statically linked, Go BuildID=uwazKG5VKE5W00rj_npV/E3YCRTLkOyj3bmbkrZHQ/eURhXbgLky2O-dymcnU2/14vR3vV6H0_SA-aqAi-k, stripped
+ rm /Users/rgee0/.arkade/bin/glab
+ echo

+ ./arkade get glab --arch aarch64 --os linux --quiet
+ file /Users/rgee0/.arkade/bin/glab
/Users/rgee0/.arkade/bin/glab: ELF 64-bit LSB executable, ARM aarch64, version 1 (SYSV), statically linked, Go BuildID=jut912ugLxi2Z0cNNilS/pI1RtLJ83L-JAHOcV40R/cee75MwDUCQV-XKSg262/p6i-81wBESyx43yfh_p5, stripped
+ rm /Users/rgee0/.arkade/bin/glab
+ echo

+ ./arkade get glab --arch x86_64 --os mingw --quiet
+ file /Users/rgee0/.arkade/bin/glab.exe
/Users/rgee0/.arkade/bin/glab.exe: PE32+ executable (console) x86-64, for MS Windows
+ rm /Users/rgee0/.arkade/bin/glab.exe
+ echo

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Documentation

• I have updated the list of tools in README.md if (required) with ./arkade get --format markdown
• I have updated the list of apps in README.md if (required) with ./arkade install --help

Checklist:

• My code follows the code style of this project.

• My change requires a change to the documentation.

• I have updated the documentation accordingly.

• I've read the CONTRIBUTION guide

• I have signed-off my commits with git commit -s

• I have tested this on arm, or have added code to prevent deployment

[alexellis]

LGTM