Amber Framework
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Installation

That feeling you get when that right tool did all the work
The Amber CLI offers you a set of command line tools to create, generate, scaffold and run your projects quickly and simply.

Linux

Ensure you have the necessary dependencies:
  • Git: Use your platform specific package manager to install git
  • Crystal: Follow the instructions to get crystal on this page: Crystal Installation​
  • NodeJS and Webpack: node is an optional dependency and is used to compile JavaScript and other assets.
  • PostgreSQL: postgres is a relational database server. Amber configures applications to use this database adapter by default, but you can switch to MySQL by passing the flag --database mysql when creating a new application.
Once you have these dependencies, You can build the amber tool from source:

From Source

Download and install amber
curl -L https://github.com/amberframework/amber/archive/stable.tar.gz | tar xz
cd amber-stable/
make
sudo make install
If you run into an issue on compilation regarding Unhandled exception in spawn: fork: Cannot allocate memory it means you don't have enough memory. This can easily be solved by adding a swapfile.
sudo dd if=/dev/zero of=/swapfile bs=2k count=1024k
sudo mkswap /swapfile
sudo chmod 600 /swapfile
sudo swapon /swapfile

For Debian & Ubuntu

  • These are necessary to compile the CLI:
  • sudo apt-get install build-essential libreadline-dev libsqlite3-dev libpq-dev libmysqlclient-dev libssl-dev libyaml-dev

For RedHat & CentOS

  • sudo yum groupinstall development tools
  • sudo yum install readline-devel sqlite-devel openssl-devel libyaml-devel gc-devel libevent-devel

For ArchLinux & derivates

  • Install the CLI from AUR package. Dependencies are automatically installed.
  • yaourt -S amber
You should now be able to run amber in the command line.

macOS

Installing Amber with these package managers also installs Crystal.
  • Homebrew
    brew tap amberframework/amber
    brew install amber
  • MacPorts
    sudo port selfupdate
    sudo port install amber

From source

Known problems while trying to build Amber from source on macOS:
  • If you see linker problems, such as ld: library not found for -lssl (this usually means you need to install the development package for libssl), you may need to set some (or all) of those environment variables:
    export PKG_CONFIG_PATH="/usr/local/opt/openssl/lib/pkgconfig"
    export LDFLAGS="-L/usr/local/opt/openssl/lib"
    export CPPFLAGS="-I/usr/local/opt/openssl/include"
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