snippet_cli

A CLI gem for generating valid YAML snippet configs for Espanso, with utilities to validate match files and detect conflicting triggers.

[!TIP] To get started, run snippet_cli new --save to build a snippet interactively and append it directly to your config file.

Installation

Needs Ruby 3.2 or newer.

Platform	Supported
macOS (Apple Silicon and Intel)	Yes
Linux (x86_64, arm64)	Yes
Windows	No

snippet_cli drives its prompts with gum, which ships as a platform-specific gem. No Windows build of that gem is published, so Windows is not supported. WSL works, since it installs the Linux build.

RubyGems

gem install snippet_cli

Nix

The flake builds snippet_cli and every gem it needs against a pinned Ruby, and wires up the gum binary for you. Nothing is written to ~/.gem, so the install cannot break when your system Ruby changes.

Run it without installing — nix run

Try the latest release straight from GitHub:

nix run github:ajmarkow/snippet_cli

Pass arguments after --:

nix run github:ajmarkow/snippet_cli -- new --save
nix run github:ajmarkow/snippet_cli -- check ~/.config/espanso/match/base.yml

Install into your profile — nix profile add

nix profile add github:ajmarkow/snippet_cli

On Nix older than 2.30, the subcommand is install instead of add:

nix profile install github:ajmarkow/snippet_cli

Then upgrade or remove it with:

nix profile upgrade snippet_cli
nix profile remove snippet_cli

Add it to your system config — flake input, Home Manager, or NixOS

Add the flake as an input:

{
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    snippet_cli.url = "github:ajmarkow/snippet_cli";
  };
}

Simplest: apply the overlay, then refer to the package by name everywhere pkgs is in scope — no need to thread system through:

nixpkgs.overlays = [ inputs.snippet_cli.overlays.default ];

home.packages = [ pkgs.snippet_cli ];             # Home Manager
environment.systemPackages = [ pkgs.snippet_cli ]; # NixOS

Without the overlay, reach the package directly instead:

home.packages = [ inputs.snippet_cli.packages.${pkgs.system}.default ];

Build from a local checkout

git clone https://github.com/ajmarkow/snippet_cli
cd snippet_cli
nix build .#snippet_cli   # result appears at ./result/bin/snippet_cli
nix run .#snippet_cli -- version

Flakes only see files tracked by git, so git add any new file before building.

[!NOTE] The Nix commands above need flakes enabled. If your Nix predates flakes being on by default, prefix them with --extra-experimental-features 'nix-command flakes'.

Features

Interactive Snippet Builder

• Designed to make adding complex snippets to your Espanso config completely painless (new command).
• Handles quoting, escaping, and multiline replacements for you.
• Supports trigger, triggers, or regex for snippet matching.
• Supports all replacement types: replace, markdown, html, image_path.
• Supports advanced snippet options: label, comment, search_terms, and word trigger.
• Offers --no-vars and --bare flags on new for defining simpler snippets without the variable builder or advanced options.
  • --no-vars - Snippet builder without variables.
  • --bare - Bare-bones snippet builder with just basic trigger and replace types.

Interactive Variable Builder

• Offers an interactive variable builder to define as many variables as you'd like.
  • Can be invoked separately (vars command) to add variables to the global_vars array in your config.
  • Supports the following variable types: echo, random, choice, date, shell, script, form, clipboard.
  • No guessing at parameters or double-checking schema, asks for all required fields and prompts for optional ones if you choose to set them.
• Defined variables are shown as you enter your snippet text for easy reference.
  • Warns you if you forgot to use a variable or referenced an undefined one.
• Allows you to re-order variables after defining them.

Config Integration

• Automatically uses the Espanso default config path for appending variables or snippets to your match file(s).
  • If you have multiple match files, the wizard will ask which one to append to.
• Supports piped output if you don't want to save directly to a match file. Use --save / -s to append directly.

Utilities

• Validate a match file against the Espanso schema (check command).
• Detect duplicate triggers in a match file (conflict command).

Commands

More Info

Command	Alias	Description
new	n	Interactively build and optionally save to your match file
vars	v	Interactively build a vars block and optionally save it to global_vars
check	k	Validate a match file against the Espanso schema
conflict	c	Detect duplicate triggers in a match file
version	—	Print the current version

Flags

More Info

Flag	Alias	Commands	Description
--save	-s	new, vars	Save output to match file
--no-vars	-n	new	Skip variable builder; still offers alt types and advanced options
--bare	-b	new	Trigger(s) + plaintext only; no vars, alt types, or advanced
--file	-f	check, conflict	Path to match file
--trigger	-t	conflict	Trigger(s) to look up (comma-separated or repeated)
--help	-h	all	Show help info for commands

---

Development

[!NOTE] This project uses devenv (Nix-based) for environment management. Use devenv shell for local development.

First-time setup

Devenv Install Instructions

1. Install Nix and devenv
2. Clone the repo:

   git clone https://github.com/ajmarkow/snippet_cli.git
   cd snippet_cli
   

3. Enter the development environment:

   devenv shell
   

4. Install dependencies:

   bundle install
   

5. Run the tests to verify everything works:

   bundle exec rake spec
   

Releasing a new version

Instructions

1. Update the version number in lib/snippet_cli/version.rb
2. Commit with the message containing gem-release-ready — CI will build and push the gem to RubyGems automatically once tests pass

Additional Info

Contributing, Code of Conduct

Contributing

Bug reports and pull requests are welcome on GitHub at ajmarkow/snippet_cli. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct.

Code of Conduct

Everyone interacting in the SnippetCli project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.