tmiland / add-apt-key

POSIX Script for installing APT keys

POSIX Script for installing APT keys

General help

This script will help with installing PGP keys for APT repositories.

This script supports up to 2 arguments:

• 1st argument is input file. This can be either:
  • An URL - key will be downloaded into current path (using wget or curl)
  • A filename - reads an existing key in current path
  • A path and a filename - reads an existing key in given path
• 2nd argument is key output path and output name. This can be either:
  • Only filename - output path is set in config, saved as given filename
  • A path and a filename - output path is given here, saved as given filename
  • Only a path (end with /) - output path is given here, filename is taken from existing key
  • Empty - output path is set in config, filename is taken from existing key

This script has a config file /usr/local/etc/add-apt-key.conf, where the following variables can be set:

• keypath : path to store converted key - default is /usr/share/keyrings
• verbosity : if set to Yes - displays extra output
• removetmp : if set to Yes - remove input (non-converted) file

Example 1: (PWD=/root)

sudo add-apt-key https://mariadb.org/mariadb_release_signing_key.asc /usr/local/share/keyrings/

Will download key in /root, convert it and store as /usr/local/share/keyrings/mariadb_release_signing_key.gpg

Example 2: (PWD=/home/user)

sudo add-apt-key /root/mariadb_release_signing_key.asc /usr/local/share/keyrings/mariadbkey

Will use existing key in /root, convert it and store as /usr/local/share/keyrings/mariadbkey.gpg

Example 3: (PWD=/home/user)

sudo add-apt-key mariadb_release_signing_key.asc mariadbkey

Will use existing key in /home/user, convert it and store as /usr/share/keyrings/mariadbkey.gpg

After installing the PGP key, it is also possible to add the key and repository to /etc/apt/sources.list

• The choice to add this will be presented in the script as the first input option
• If Yes is chosen, the repository string must be pasted as the second input option

This completes the key installation by adding the corresponding repository line to /etc/apt/sources.list

Installation

Install by running the following commands:

sudo curl -L https://raw.githubusercontent.com/ameinild/add-apt-key/master/add-apt-key -o /usr/local/bin/add-apt-key
sudo curl -L https://raw.githubusercontent.com/ameinild/add-apt-key/master/add-apt-key.conf -o /usr/local/etc/add-apt-key.conf
sudo chmod a+rx /usr/local/bin/add-apt-key