#!/usr/bin/env sh
# git/install.sh — configure git identity + HTTPS credential storage.
# Idempotent: safe to re-run.
set -eu

say() { printf '%s\n' "$*" >&2; }

GIT_NAME="Nic O'Connor"
GIT_EMAIL="nic.oconnor@gmail.com"

git config --global user.name "$GIT_NAME"
git config --global user.email "$GIT_EMAIL"
say "git identity: $GIT_NAME <$GIT_EMAIL>"

# Auto-prune stale remote-tracking refs on every fetch/pull.
#
# Without this, `git branch -r` keeps listing branches that were deleted on the
# server, and zsh's git completion happily offers them — so you tab-complete a
# branch name into `git push origin --delete` and get "remote ref does not
# exist" for something that was already gone. The prefix makes it worse: the
# completion offers `origin/foo`, but the ref on the server is just `foo`, so
# even a live branch fails unless you strip it by hand. See the `gbd` helper in
# zsh/zshrc (the grmb helper) for that half.
git config --global fetch.prune true
say "fetch.prune = true (stale remote-tracking refs cleaned on every fetch)"

# Plaintext credential cache in $HOME (survives container/VM rebuilds that
# wipe everything outside $HOME). Git creates ~/.git-credentials with 0600
# the first time a credential is saved.
git config --global credential.helper store
say "credential.helper = store (~/.git-credentials, created on first auth)"

say "Done. On the next HTTPS push/pull to a new host, git prompts once and caches the credential in ~/.git-credentials."