Blindfold: a Rust CLI that turns gitignore.io templates into one .gitignore

What Blindfold solves and who it is for

Blindfold addresses a narrow but common annoyance: assembling a .gitignore file from the community-maintained templates on gitignore.io. Instead of visiting the website, copying a block of rules, and pasting them into a file, you run one command. The tool is aimed at developers who already use Rust and want a CLI-driven workflow for generating ignore rules. It is not a full project scaffolder. It does not create files beyond the .gitignore, and it does not manage ignore rules after generation. The README positions it as 'a lightweight and simple .gitignore generator', and that is exactly the scope.

The mechanism: fetching and merging templates from gitignore.io

The core mechanism is a network call to gitignore.io. Blindfold takes one or more template names as arguments, requests the corresponding rules from the service, and writes the combined result to a .gitignore file. The README shows that you can pass multiple templates in a single command, for example 'blindfold generate dart flutter -d ./src/', which produces a single file containing both sets of rules. The append flag, available as '--append' or '-a', changes the behaviour: instead of overwriting an existing .gitignore, Blindfold adds the fetched rules to the end of the current file. This is the key feature for preserving custom directories or rules that you have added by hand. The directory argument, '--dir' or '-d', lets you choose where the file goes, defaulting to the current directory if omitted.

Installation and basic commands from the README

Installation requires Rust, as the README notes. The simplest path is 'cargo install blindfold', which pulls the crate from crates.io and puts the binary on your PATH. Building from source is also possible: clone the repository, enter the directory, and run 'cargo install --path ./'. Once installed, the main subcommand is 'generate', followed by one or more template names. The README gives these examples: 'blindfold generate dart flutter -d ./src/' writes a combined file to the src directory; 'blindfold generate macos --append' adds macOS rules to the existing .gitignore in the current directory; 'blindfold generate rust --dir ./src/' writes a Rust ignore file to src; and 'blindfold generate rust -d ./src/ -a' combines the directory and append flags. A 'list' subcommand shows the full table of available templates, and 'blindfold -h' displays the help screen. The commands are straightforward, and the shorthand flags keep them short.

A real limitation: network dependency and template name accuracy

The most obvious limitation is that Blindfold cannot work without network access to gitignore.io. If the service is down, unreachable, or blocked by a firewall, the generate command will fail. The README does not mention any offline cache or fallback. Another constraint is that you must know the exact template names accepted by gitignore.io. The 'list' command helps, but it requires the tool to fetch the list, which again needs the network. For a developer working in an isolated environment or with strict egress controls, this tool is the wrong choice. There is also no mention of version pinning for templates: the rules you get today may differ from what you got last week, because gitignore.io updates its templates. If you need reproducible ignore files across a team, this variability is a concern.

Comparison with an alternative: writing .gitignore by hand or using a static generator

The obvious alternative is to write .gitignore rules by hand, which gives you full control and no network dependency. Another alternative is a static generator that ships templates locally, such as 'gitignore' (a Python package) or 'ignore' (a Node tool), which bundle templates in the package and do not require a network call at runtime. The difference in approach is significant: Blindfold delegates template maintenance to gitignore.io, so you always get the latest rules, but you trade that for a dependency on the service. A static generator gives you reproducibility and offline operation, but you must update the package to get new templates. For a solo developer who wants the latest community rules and has a reliable connection, Blindfold is convenient. For a team that needs identical ignore files across machines, a vendored template set is safer.

Maintenance and upgrade cost, and licence notes

The repository shows a long gap between releases: v1.0.6 was pushed in June 2020, and v1.1.0 came in June 2025. That five-year pause suggests the project is not under active, continuous development, although the recent release indicates it is not abandoned either. The maintenance cost is low for users: the tool is a single binary, and upgrades come through 'cargo install blindfold' again. The README does not mention any configuration files or state that needs migrating. The project is licensed under MIT, which permits free use, modification, and distribution, including in commercial projects, provided the copyright notice is included. This is a permissive licence, but it does not come with any warranty, so you are responsible for verifying that the generated .gitignore files meet your needs. The lack of a changelog in the README means you may need to check the release notes on crates.io or GitHub to see what changed between v1.0.6 and v1.1.0.

A point of view: is this tool worth adopting?

Blindfold is a small tool that does one thing. For a Rust developer who frequently starts new projects and wants a quick way to get a .gitignore without opening a browser, it is a reasonable convenience. The append flag is genuinely useful, because it lets you regenerate a template for a language without losing your custom exclusions. However, the network dependency and the lack of offline support make it less robust than a tool that bundles templates. The five-year gap between releases is a caution sign: the tool may work fine, but you should not assume rapid fixes if gitignore.io changes its API. The command syntax is clean and the help screen is documented, so the learning curve is minimal. If you already use Rust and have a network connection, try it. If you need deterministic ignore files or work offline, skip it and use a static generator or hand-written rules.

Editorial conclusion

Adopt Blindfold if you work in a Rust environment, need to generate .gitignore files from gitignore.io templates, and want a CLI that can merge multiple templates or append to an existing file without overwriting custom rules. Do not adopt it if you cannot install Rust or if you need offline template generation, because the tool depends on gitignore.io and the Rust toolchain. Before relying on it, verify that gitignore.io is accessible from your network and that the template names you use match the service's list, which you can check with the 'blindfold list' command. This is a focused utility, not a comprehensive ignore-file manager, so for complex ignore logic you may still need manual edits.

Frequently asked questions

Official sources

1. Official documentation
2. Official README
3. Project repository
4. Release notes