Composer | Brain Phrye

I don’t tend to do much php but it comes up from time to time. The package manager for php is composer and it’s generally not in distro packages. So I wrote the following for my home dir to make it easier to get on the odd time I need it.

This would go in ~/bin/composer

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#!/bin/bash

compdir="$HOME/.config/php-cli"
compbin="$HOME/.config/php-cli/composer.phar"

die() {
  echo "ERROR: $*"
  exit 1
}

if [[ ! -f "$compbin" ]]; then
  mkdir -p "$compdir"
  opwd="$(pwd)"
  cd "$compdir" || die "Couldn't go to $compdir."

  gitsig="$(wget -q -O - https://composer.github.io/installer.sig)"
  php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
  calcsig="$(php -r "echo hash_file('sha384', 'composer-setup.php');")"

  if [[ "$gitsig" != "$calcsig" ]]; then
    rm composer-setup.php
    die 'Invalid installer signature.'
  fi

  php composer-setup.php --quiet \
    || die "composer-setup.php failed - look in $opwd for more info."
  rm composer-setup.php

  cd "$opwd" || die "Couldn't go to $compdir."
fi

$compbin "$@"