functions

#!/usr/bin/bash

command_exists() {
  type "$1" &>/dev/null
}

# https://coderwall.com/p/_s_xda/fix-ssh-agent-in-reattached-tmux-session-shells
fixssh() {
  for key in SSH_AUTH_SOCK SSH_CONNECTION SSH_CLIENT; do
    if (tmux show-environment | grep "^${key}" >/dev/null); then
      value=$(tmux show-environment | grep "^${key}" | sed -e "s/^[A-Z_]*=//")
      export ${key}="${value}"
    fi
  done
}

# Shorten the email to the format x@y; useful in prompt
git_user_name_prompt_mkii() {
  git config user.email | sed 's/\(.\).\+@\(..\).\+/\1@\2/'
}

# git quicksave: commit and push
save() {
  if [ -z "${1+x}" ]; then
    git commit -a -m "update" && git push
  else
    git commit -a -m "$1" && git push
  fi
}

# Print text to terminal centered
center-text() {
  colcount=$((COLUMNS - 3))
  sed -e :a -e "s/^.\{1,$colcount\}$/ & /;ta"
  unset colcount
}

load_secrets() {
  local _secrets="$HOME/.secrets"
  if [[ ! -f "$_secrets" ]]; then
    echo "No secrets file found at $_secrets" >&2
    return 1
  fi
  local _perms
  _perms="$(stat -c '%a' "$_secrets" 2>/dev/null || stat -f '%OLp' "$_secrets" 2>/dev/null)"
  if [[ "$_perms" != "600" ]]; then
    echo "WARNING: $_secrets has permissions $_perms (expected 600). Skipping." >&2
    return 1
  fi
  # shellcheck disable=SC1090
  source "$_secrets"
  echo "Secrets loaded."
}