Module: Twin::CLI

Defined in:
lib/twin/cli.rb

Constant Summary collapse

USAGE = 
<<~TXT
  twin — sync configuration files between machines

  USAGE:
    twin                       interactive picker (all sync-files)
    twin <name>                picker — sync-file by name in sync_dir
    twin <path>                picker — file or directory (absolute or relative)
    twin list   [--all] [--label X] [--file X] [--json]
    twin status [--all] [--label X] [--file X] [--json]
    twin sync   [-p PATTERN] [--label X] [--file X] [--all] [--dry-run]
    twin doctor                check tools, renderers, and sync targets
    twin --help                show this message

  FILE ARGUMENT:
    bare name (no /)  → matched by substring against sync-file names
    contains /        → resolved as path; file or directory both work

  CONFIG:
    ~/.config/twin/config.yaml
    TWIN_SYNC_DIR  overrides sync_dir
    TWIN_CONFIG    overrides config path
TXT

Class Method Summary collapse

Class Method Details

.cmd_doctor(cfg) ⇒ Object

── doctor ─────────────────────────────────────────────────────────────────



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# File 'lib/twin/cli.rb', line 203

def cmd_doctor(cfg)
  ok = true

  puts "Tools"
  %w[grubber rsync fzf].each do |bin|
    if tool_available?(bin)
      puts "  ✓  #{bin}"
    else
      puts "  ✗  #{bin}  (required — not found in PATH)"
      ok = false
    end
  end

  puts "\nRenderers (preview)"
  found_renderer = false
  %w[apex glow bat].each do |bin|
    if tool_available?(bin)
      puts "  ✓  #{bin}"
      found_renderer = true
    else
      puts "  –  #{bin}  (not installed)"
    end
  end
  puts "  ⚠   no renderer found — file preview will fall back to cat" unless found_renderer

  puts "\nTemplating"
  if cfg.hosts.empty?
    puts "  –  no hosts configured"
  else
    %i[host target].each do |attr|
      name = cfg.send(attr)
      if name.empty?
        puts "  ✗  #{attr} not set in config"
        ok = false
      elsif cfg.hosts.key?(name)
        puts "  ✓  #{attr}: #{name}"
      else
        puts "  ✗  #{attr} #{name.inspect} not found in hosts"
        ok = false
      end
    end
  end

  puts "\nTargets"
  begin
    programs = Scanner.load_programs(cfg, show_all: true)
    puts "  ✓  all template tokens resolved" unless cfg.hosts.empty?
    targets  = programs.flat_map(&:jobs).map(&:target).uniq.sort
    if targets.empty?
      puts "  (no programs loaded)"
    else
      targets.each do |tgt|
        if Twin::Sync.mounted?(tgt)
          puts "  ✓  #{tgt}"
        else
          puts "  ✗  #{tgt}  (not mounted)"
          ok = false
        end
      end
    end
  rescue => e
    puts "  ✗  #{e.message}"
    ok = false
  end

  puts ok ? "\nAll checks passed." : "\nSome checks failed."
  exit 1 unless ok
end

.cmd_list(cfg, args) ⇒ Object

── list / status ──────────────────────────────────────────────────────────



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# File 'lib/twin/cli.rb', line 107

def cmd_list(cfg, args)
  opts = parse_filter_opts(args)
  programs = Scanner.load_programs(cfg, **opts.slice(:file, :label, :show_all))

  if opts[:json]
    puts JSON.pretty_generate(programs.map { |p| program_to_hash(p) })
    return
  end

  programs.each do |p|
    mark = p.status == :disabled ? "–" : "✓"
    puts "#{mark}  #{p.name}  — #{p.description}"
  end
end

.cmd_status(cfg, args) ⇒ Object 



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# File 'lib/twin/cli.rb', line 122

def cmd_status(cfg, args)
  opts = parse_filter_opts(args)
  programs = Scanner.load_programs(cfg, **opts.slice(:file, :label, :show_all))

  if opts[:json]
    puts JSON.pretty_generate(programs.map { |p| program_to_hash(p) })
    return
  end

  tty = $stdout.tty?
  programs.each do |p|
    icon = Picker::STATUS_ICONS[p.status] || "?"
    icon = Picker.colorize(p.status, icon) if tty
    name = tty ? Picker.bold(p.name) : p.name
    puts "#{icon}  #{name}"
    p.jobs.each do |j|
      src = j.source_exists ? j.source_mtime.strftime("%Y-%m-%d %H:%M:%S") : "(not found)"
      tgt = j.target_exists ? j.target_mtime.strftime("%Y-%m-%d %H:%M:%S") : "(not found)"
      conflict = j.conflict ? (tty ? "  #{Picker.colorize(:target_newer, "!")}" : "  !") : ""
      puts "    #{j.path}#{conflict}"
      puts "      src #{src}"
      puts "      dst #{tgt}"
    end
  end
end

.cmd_sync(cfg, args) ⇒ Object

── sync ───────────────────────────────────────────────────────────────────



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# File 'lib/twin/cli.rb', line 150

def cmd_sync(cfg, args)
  opts = parse_sync_opts(args)
  programs = Scanner.load_programs(cfg, **opts.slice(:file, :label, :show_all))

  if opts[:pattern]
    programs = programs.select { |p| p.name.downcase.include?(opts[:pattern].downcase) }
  end

  if programs.empty?
    puts "no matching programs"
    return
  end

  programs.each { |p| sync_program(cfg, p, dry_run: opts[:dry_run]) }
end

.job_to_hash(j) ⇒ Object 



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# File 'lib/twin/cli.rb', line 312

def job_to_hash(j)
  h = j.to_h
  h[:status]       = j.status
  h[:source_mtime] = j.source_mtime&.iso8601
  h[:target_mtime] = j.target_mtime&.iso8601
  h
end

.parse_filter_opts(args) ⇒ Object

── option parsing ─────────────────────────────────────────────────────────



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# File 'lib/twin/cli.rb', line 278

def parse_filter_opts(args)
  opts = { show_all: false, label: nil, file: nil, json: false }
  OptionParser.new do |o|
    o.on("--all")          { opts[:show_all] = true }
    o.on("--label=L")      { |v| opts[:label] = v }
    o.on("--file=F")       { |v| opts[:file] = v }
    o.on("--json")         { opts[:json] = true }
  end.parse!(args)
  opts
end

.parse_sync_opts(args) ⇒ Object 



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# File 'lib/twin/cli.rb', line 289

def parse_sync_opts(args)
  opts = { show_all: false, label: nil, file: nil, pattern: nil, dry_run: false }
  OptionParser.new do |o|
    o.on("--all")          { opts[:show_all] = true }
    o.on("--label=L")      { |v| opts[:label] = v }
    o.on("--file=F")       { |v| opts[:file] = v }
    o.on("-p", "--pattern=P") { |v| opts[:pattern] = v }
    o.on("--dry-run")      { opts[:dry_run] = true }
  end.parse!(args)
  opts
end

.pick_and_sync(cfg, file:) ⇒ Object

── picker → sync ──────────────────────────────────────────────────────────



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# File 'lib/twin/cli.rb', line 67

def pick_and_sync(cfg, file:)
  programs = Scanner.load_programs(cfg, file: file, show_all: false)
  if programs.empty?
    warn "no active programs found#{" in #{file}" if file}"
    return
  end

  selected_key = nil  # [name, sync_file] of last program — used to re-enter
  loop do
    program =
      if selected_key
        programs.find { |p| [p.name, p.sync_file] == selected_key }
      else
        Picker.pick_program(programs)
      end
    return unless program

    jobs = Picker.pick_paths(program, cfg)
    if jobs == :back               # ESC in stage 2 → back to stage 1
      selected_key = nil
      next
    end
    if jobs.empty?                 # Enter without selection → exit
      return
    end

    sync_jobs(cfg, program, jobs)

    print "\npress Enter to continue, q to quit "
    $stdout.flush
    break if $stdin.gets&.strip == "q"

    # reload so status reflects what was just synced, stay on this program
    programs     = Scanner.load_programs(cfg, file: file, show_all: false)
    selected_key = [program.name, program.sync_file]
  end
end

.program_to_hash(p) ⇒ Object 



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# File 'lib/twin/cli.rb', line 301

def program_to_hash(p)
  {
    name:        p.name,
    status:      p.status,
    sync_file:   p.sync_file,
    label:       p.label,
    description: p.description,
    jobs:        p.jobs.map { |j| job_to_hash(j) },
  }
end

.run(argv) ⇒ Object 



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# File 'lib/twin/cli.rb', line 38

def run(argv)
  cfg = Twin::Config.load
  cfg.validate!

  first = argv.first
  case first
  when nil
    pick_and_sync(cfg, file: nil)
  when "list"     then cmd_list(cfg, argv.drop(1))
  when "status"   then cmd_status(cfg, argv.drop(1))
  when "sync"     then cmd_sync(cfg, argv.drop(1))
  when "doctor"   then cmd_doctor(cfg)
  when "-h", "--help", "help"
    puts USAGE
  when /\A-/
    warn "unknown option: #{first}"
    warn "Run 'twin --help' for usage."
    exit 1
  else
    # Treat as file.md or directory path
    pick_and_sync(cfg, file: first)
  end
rescue => e
  warn "error: #{e.message}"
  exit 1
end

.sync_jobs(cfg, program, jobs, dry_run: false) ⇒ Object 



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# File 'lib/twin/cli.rb', line 170

def sync_jobs(cfg, program, jobs, dry_run: false)
  jobs = jobs.select { |j| j.active == 1 }
  return if jobs.empty?

  # one mount check per unique target root
  checked = Set.new
  jobs.each do |j|
    next if checked.include?(j.target)
    unless Twin::Sync.mounted?(j.target)
      warn "abort: #{j.target} is not a mounted volume"
      exit 1
    end
    checked << j.target
  end

  conflicts = jobs.select(&:conflict)
  unless conflicts.empty?
    warn "warning: target is newer than source:"
    conflicts.each { |j| warn "  ! #{j.path}" }
    warn "continuing sync (--update skips newer files on target)."
  end

  puts "→ #{program.name}"
  jobs.each do |job|
    success, output, = Twin::Sync.run_job(cfg, job, dry_run: dry_run)
    puts "  • #{job.path}"
    puts output.gsub(/^/, "    ") if output && !output.strip.empty?
    warn "  error syncing #{job.path}" unless success
  end
end

.sync_program(cfg, program, dry_run: false) ⇒ Object 



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# File 'lib/twin/cli.rb', line 166

def sync_program(cfg, program, dry_run: false)
  sync_jobs(cfg, program, program.active_jobs, dry_run: dry_run)
end

.tool_available?(name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/twin/cli.rb', line 272

def tool_available?(name)
  system("command -v #{name} > /dev/null 2>&1")
end