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Custom Rust command line tool for file automation, API integration and scheduled tasks

Custom Rust command line tool for file automation, API integration and scheduled tasks

Software and apps · delivered in 4-14 days

Command-line utilities built in Rust to replace the manual, repetitive jobs many teams still do by hand: converting or checking files, bulk renaming and sorting, pulling data from an API into CSV or JSON, and running on a schedule with a report of what happened. Delivered as a single binary, so there is nothing extra to install on the machine that runs it.

  • Starter - one tool, up to 3 commands, CSV and JSON input and output, tests, a README, one platform binary, source code, 1 revision.
  • Standard - up to 6 commands, a validated configuration file, binaries for Linux, Windows and macOS, source code, 2 revisions.
  • Advanced - up to 10 commands, everything in Standard, parallel processing, tagged release builds, source code, 3 revisions.

Built for small teams and solo operators who repeat the same file, API or renaming task every week and would rather run one command instead. Rust builds down to a single compact binary, so there is no Python or Node runtime to keep updated, and it stays fast even on sizeable files.

The Starter tier gives you one tool with up to 3 commands, each with its own arguments and a help screen, CSV and JSON support, tests, documentation, a binary for your chosen platform, and the source placed in your repository. A command means one verb plus its arguments: for example, importing and validating count as two separate commands. Standard extends this to 6 commands and adds a configuration file that reports the exact line and field of any error, plus binaries for all three major platforms. Advanced reaches 10 commands, carries over everything from Standard, and adds parallel processing with a progress indicator for inputs too large to process row by row, along with a build workflow triggered by each tag you push.

Should your requirements expand mid-build, any extra work is quoted before it starts, whether as an add-on or a fresh order. Out of scope: graphical interfaces, mobile apps and game-server plugins - this is the Rust programming language, not the game.

Ownership stays with you: the complete source is handed over to your repository, free to modify, reuse or pass to another developer. Once delivered, any issue that does not match what was agreed is corrected at no extra charge.

Our background covers more than a decade in IT with a focus on Rust development, including maintaining an open-source HTTP library published on the Rust package registry, backed by 198 automated tests and continuous integration.

Progress updates are written and sent every working day on multi-day builds, with quick replies and no calls required.

How the build proceeds

First, the scope is agreed in writing - confirming the command list, input and output formats and the right tier before any coding starts. Next comes a working skeleton with the first command running end to end against your sample file, letting you check direction early while changes are cheap. Then the remaining commands are built, each with its own tests, with a short written update every working day on longer builds. After that, the binaries, configuration file and parallel processing (where included) are finished, along with a README giving the exact command to schedule it. Finally, the source is handed over in your repository with a written explanation of how to build it, run the tests and cut a release.

What happens after you buy

Your order opens its own thread here the moment it is paid, and everything about that order - questions, changes and the final report - happens in it.

Questions people ask

What counts as one command?

A command is a single verb with its own arguments - import and validate, for instance, count as two separate commands. Starter allows up to 3, Standard up to 6, Advanced up to 10, and further commands can be added one at a time.

Will it run on Windows?

Starter produces one binary for the platform you specify. Standard and Advanced include all three builds, produced on hosted Windows and macOS runners, with the --help output supplied as evidence.

My files are large. Will it cope?

Let us know the rough file size before ordering. For inputs too large to process row by row, parallel processing with a progress indicator is included in Advanced, and available as the large-input speed-up add-on on Starter and Standard.

Do you work on Rust the game?

No - this service covers the Rust programming language only, with no server plugins or game-related work of any kind.

Who owns the code?

You retain full ownership. The complete source is delivered to your repository, and you may change it, reuse it or pass it to another developer without needing our permission.

Which Rust version do you build?

Builds use current stable Rust on the 2024 edition. If the tool needs to match an existing codebase or an older toolchain, specify the version in your brief and we will build against it.

Can it read formats other than CSV and JSON?

Yes - text formats such as YAML, TOML or XML can be supported, just mention them in your brief. Binary or proprietary formats need a sample reviewed first, and are quoted before purchase.

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