Add default branch check and user confirmation to --push flag

[Copilot]

The --push flag in init and upgrade commands now validates the current branch and requires user confirmation before committing/pushing changes.

Changes

• Remote repository requirement: The --push flag now requires a remote repository to be configured. Operations fail immediately with a clear error if no remote exists.

• Default branch validation: Queries GitHub API to verify current branch matches repository default before pushing.

• User confirmation: Prompts for explicit confirmation before mutating git operations. Auto-confirms in CI environments (detected via CI, CONTINUOUS_INTEGRATION, GITHUB_ACTIONS env vars).

• New helper functions (pkg/cli/git.go):

  • getDefaultBranch() - Fetches default branch via gh api
  • checkOnDefaultBranch(verbose bool) - Validates branch match and remote existence
  • confirmPushOperation(verbose bool) - Interactive confirmation prompt

Behavior

Before push, the flow now validates:

# 1. Requires remote repository
$ gh aw init --push
ℹ Checking current branch...
✗ cannot push: --push requires a remote repository to be configured

# 2. Check current branch matches default
$ gh aw init --push
ℹ Checking current branch...
✗ cannot push: not on default branch: current branch is 'feature', default branch is 'main'

# 3. Prompt for confirmation (outside CI)
$ gh aw init --push
ℹ Checking current branch...
✓ On default branch: main

⚠ This will commit and push changes to the remote repository.
? Do you want to proceed with commit and push? [Yes/No]

In CI environments, confirmation is automatic with no prompt shown.

Original prompt

The "--push" feature in init/upgrade should:

• check git is on the repo default branch
• confirm with user in non-CI environment before issuing any mutating git operation

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[pelikhan]

@copilot if there is NO remote cancel.

[Copilot]

@copilot if there is NO remote cancel.

Done. The --push flag now fails immediately if no remote is configured with error: --push requires a remote repository to be configured

Fixed in commit 921d75f.

Example:

$ gh aw init --push
ℹ Checking current branch...
✗ cannot push: --push requires a remote repository to be configured