Class: DevContext::ShellEmitter

Inherits:
Object
  • Object
show all
Defined in:
lib/dev_context/shell_emitter.rb

Constant Summary collapse

SCRIPT_MARKER = 
"# DX_SHELL_EVAL".freeze

Instance Method Summary collapse

Constructor Details

#initialize(context:, remote_name:, auto_create_local_branch:) ⇒ ShellEmitter

Returns a new instance of ShellEmitter.



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# File 'lib/dev_context/shell_emitter.rb', line 9

def initialize(context:, remote_name:, auto_create_local_branch:)
  @context = context
  @remote_name = remote_name
  @auto_create_local_branch = auto_create_local_branch
end

Instance Method Details

#activation_script ⇒ Object 



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# File 'lib/dev_context/shell_emitter.rb', line 15

def activation_script
  repo = Shellwords.escape(context.fetch("repo_path"))
  branch = Shellwords.escape(context.fetch("branch"))
  forced_remote = Shellwords.escape(remote_name)
  auto_create_flag = auto_create_local_branch ? "true" : "false"

  <<~SH
    #{SCRIPT_MARKER}
    __dx_fail() { echo "$1" 1>&2; return "${2:-1}"; }
    cd #{repo} || __dx_fail "dx: could not cd into #{repo}" 11
    git rev-parse --is-inside-work-tree >/dev/null 2>&1 || __dx_fail "dx: not a git repository: #{repo}" 12

    if git show-ref --verify --quiet "refs/heads/#{branch}"; then
      git checkout #{branch} >/dev/null 2>&1 || __dx_fail "dx: checkout failed for #{branch}" 13
    elif git show-ref --verify --quiet "refs/remotes/origin/#{branch}" && [ "#{auto_create_flag}" = "true" ]; then
      git checkout -t "origin/#{branch}" >/dev/null 2>&1 || __dx_fail "dx: could not create local tracking branch #{branch}" 14
    else
      __dx_fail "dx: branch '#{branch}' was not found locally; set DX_AUTO_CREATE_LOCAL_BRANCH=true and ensure origin/#{branch} exists" 15
    fi

    if [ #{forced_remote.inspect} = "USE-REPO" ]; then
      upstream="$(git rev-parse --abbrev-ref --symbolic-full-name '@{upstream}' 2>/dev/null || true)"
      if [ -n "$upstream" ]; then
        remote="${upstream%%/*}"
        upstream_branch="${upstream#*/}"
        git pull --ff-only --autostash "$remote" "$upstream_branch" || __dx_fail "dx: pull failed for upstream $upstream (you are already in the target repo for investigation)" 16
      else
        remote_count="$(git remote | wc -l | tr -d ' ')"
        if [ "$remote_count" = "1" ]; then
          remote="$(git remote | head -n1)"
          git pull --ff-only --autostash "$remote" #{branch} || __dx_fail "dx: pull failed from $remote/#{branch} (you are already in the target repo for investigation)" 17
        else
          __dx_fail "dx: no upstream is configured and remote is ambiguous; configure upstream or set DX_GIT_REMOTE_NAME" 18
        fi
      fi
    else
      git remote get-url #{forced_remote} >/dev/null 2>&1 || __dx_fail "dx: remote '#{forced_remote}' does not exist in this repo" 19
      git pull --ff-only --autostash #{forced_remote} #{branch} || __dx_fail "dx: pull failed from #{forced_remote}/#{branch} (you are already in the target repo for investigation)" 20
    fi
  SH
end