fcl script with opinions & fancy styles

Depends on:
- gum (https://github.com/charmbracelet/gum)
- git

fcl

@@ -0,0 +1,56 @@
+#!/usr/bin/env ruby
+
+DEFAULT_ORG = "buildkite"
+REPO_BASE   = "#{ENV['HOME']}/repos"
+
+def clone(repo_url, destination)
+  spinner_command = %Q[gum spin --show-output --spinner dot]
+  git_command = ['git', 'clone', repo_url, destination].join(' ')
+  system("#{spinner_command} -- #{git_command}")
+end
+
+def print_error(message)
+  system(%Q[gum style --bold --border=double --padding='0 1' --foreground 212 "#{message}"])
+end
+
+def repo_url(repo_str)
+  ## GitHub HTTPS. We like these, use it as-is.
+  if repo_str =~ /^(git|https)\:\/\/github\.com\//
+    repo_str
+  ## GitHub SSH. Let's convert this to HTTPS.
+  elsif repo_str =~ /^git@github\.com\:.+\.git$/
+    repo_str.sub(/^git@github\.com:/, 'https://github.com/')
+  # Host, user/org and repo. Assume it's HTTPS.
+  elsif repo_str =~ /^[^\/\s]+\/[^\/\s]+\/[^\/\s]+/
+    "https://#{repo_str}#{repo_str.end_with?('.git') ? '' : '.git'}"
+  # Just a user/org name and repo name. Assume it's on GitHub and make an HTTPS URL.
+  elsif repo_str =~ /^[\w\-_]+\/[\w\-_\.]+$/
+    "https://github.com/#{repo_str}.git"
+  # Just a repo name. Assume it's a DEFAULT_ORG repo on GitHub and make an HTTPS URL.
+  elsif repo_str =~ /^[\w\-_\.]+$/
+    "https://github.com/#{DEFAULT_ORG}/#{repo_str}.git"
+  else
+    raise "I can't make a repo URL out of '#{repo_str}'."
+  end
+end
+
+def destination_path(repo_str)
+  repo_elms = repo_str.split('/')
+
+  repo  = repo_elms.pop.sub(/\.git$/, '')
+  org   = repo_elms.pop || DEFAULT_ORG
+  forge = repo_elms.pop || 'github.com'
+
+  File.join(forge, org, repo)
+end
+
+destination = ARGV[1] || destination_path(ARGV[0])
+full_dest = File.join(REPO_BASE, destination)
+
+clone_url = repo_url(ARGV[0])
+
+if Dir.exist?(full_dest)
+  log_error "#{destination} already exists. Doing nothing."
+else
+  clone(clone_url, full_dest)
+end