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backend_installation.md

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Installing Backend Client Libraries

Diesel supports SQLite, PostgreSQL, and MySQL as database backends. By default, diesel_cli requires the client library of all three backends to be installed. If one is missing, then cargo install diesel_cli will throw an error like:

note: ld: library not found for -lmysqlclient
clang: error: linker command failed with exit code 1 (use -v to see invocation)

To install diesel_cli without all backends, specify --no-default-features. Use cargo's --features option to specify postgres, sqlite, and/or mysql. For example, to install with sqlite only, run:

cargo install diesel_cli --no-default-features --features sqlite

For projects that depend on diesel, you can specify which backends are required in the Cargo.toml. For example:

[dependencies]
diesel = { version = "X.X.X", features = ["sqlite"] }

Below are commands to run to install appropriate database clients with various package managers.

Debian/Ubuntu

SQLite

sudo apt-get install libsqlite3-dev

PostgreSQL

sudo apt-get install libpq-dev

MySQL

  1. Install the following to add the MySQL APT repository.

    wget https://dev.mysql.com/get/mysql-apt-config_0.8.15-1_all.deb
sudo dpkg -i mysql-apt-config_0.8.15-1_all.deb

    Select <Ok>.

  2. Retrieve new lists of packages

    sudo apt-get update

  3. Install the client library

    sudo apt-get install libmysqlclient-dev

See MySQL docs for more details.

CentOS/Fedora

SQLite

sudo yum install sqlite-devel

PostgreSQL

sudo yum install postgresql-devel

MySQL

sudo yum install mysql-devel

Arch

SQLite

sudo pacman -Su sqlite

PostgreSQL

sudo pacman -Su postgresql

MySQL

sudo pacman -Su mysql

Mac OSX

SQLite

Already installed by default.

PostgreSQL

brew install postgresql

MySQL

brew install mysql

Windows

PostgreSQL

The simplest way to install PostgreSQL on Windows is to use the graphical installer of EnterpriseDB: https://www.postgresql.org/download/windows/, but you can also install it just with binaries: https://www.enterprisedb.com/download-postgresql-binaries.

And finally, you can run pg_env.bat in PostgreSQL\10 where PostgreSQL is installed in your system, which does all the setup needed for you. If you use the graphical installer of EnterpriseDB, it should be in C:\Program Files\.

Or you can add the bin/ directory of PostgreSQL to your PATH environment variable.