package ocamlformat

  1. Overview
  2. Docs

Description

ocamlformat is a code formatter for OCaml. It comes with opinionated default settings but is also fully customizable to suit your coding style.

  • Profiles: ocamlformat offers profiles we predefined formatting configurations. Profiles include default, ocamlformat, janestreet.
  • Configurable: Users can change the formatting profile and configure every option in their .ocamlformat configuration file.
  • Format Comments: ocamlformat can format comments, docstrings, and even code blocks in your comments.
  • RPC: ocamlformat provides an RPC server that can be used by other tools to easily format OCaml Code.

Published: 03 Dec 2024

README

ocamlformat

OCaml Code Formatter.

OCaml-CI Build Status

ocamlformat is a code formatter for OCaml. It comes with opinionated default settings but is also fully customizable to suit your coding style.

  • Profiles: ocamlformat offers profiles we predefined formatting configurations. Profiles include default, ocamlformat, janestreet.
  • Configurable: Users can change the formatting profile and configure every option in their .ocamlformat configuration file.
  • Format Comments: ocamlformat can format comments, docstrings, and even code blocks in your comments.
  • RPC: ocamlformat provides an RPC server that can bed used by other tools to easily format OCaml Code.

ocamlformat is part of the OCaml Platform, the recommended set of tools for OCaml.

Getting Started

Installation

To use ocamlformat, you will need OCaml and opam (the OCaml package manager) installed on your system. Visit the OCaml.org installation page for instructions.

With OCaml and opam installed, you can install ocamlformat with:

opam install ocamlformat

Usage

Formatting your code is as easy as running:

ocamlformat file.ml

To configure ocamlformat to your liking, create an .ocamlformat configuration file in your project with settings like:

profile = default
version = 0.27.0

Refer to our documentation or use ocamlformat --help for a full list of configuration options.

To make formatting your code even easier, use the dune build system:

dune fmt

Documentation

The full documentation for ocamlformat, including comprehensive user and API guides, can be found on OCaml.org.

Contributing

Contributing Guide

We wholeheartedly welcome contributors! To start, please read our Contributing Guide to familiarize yourself with our development process, including how to propose and how to start hacking on ocamlformat.

Hacking Guide

In addition to the Contributing Guide, we provide a Hacking Guide for ocamlformat developers. It contains in-depth explanation of development processes, such as running tests, releasing ocamlformat, etc.

Code of Conduct

In order to foster a welcoming and respectful community, ocamlformat has adopted the OCaml Code of Conduct.

Roadmap

Interested in the future of ocamlformat? Take a look at our Roadmap to understand our vision and planned advancements for ocamlformat.

Discussions

For conversations on ongoing development, be sure to visit the ocamlformat section of the OCaml Discuss forum.

License

ocamlformat is distributed under the terms of the MIT License. See the LICENSE file for complete details.

Acknowledgments

We gratefully acknowledge the individuals and organizations that have significantly contributed to ocamlformat.

ocamlformat owes its existance to its initial author, Josh Berdine. We also want to express our appreciation to Hugo Heuzard, Guillaume Petiot, and Jules Aguillon. Their significant contributions have been instrumental to the advancement of ocamlformat.

Moreover, our gratitude extends to Facebook, who fostered the inception of ocamlformat as part of their work on the ReasonML project. Jane Street and Tarides have also provided financial support and contributed to the ongoing development of the project.

Dependencies (5)

  1. re >= "1.10.3"
  2. ocamlformat-lib = version
  3. dune >= "2.8"
  4. csexp >= "1.4.0"
  5. ocaml >= "4.08" & < "5.4"

Dev Dependencies (4)

  1. odoc with-doc
  2. ocamlformat-rpc-lib with-test & = version
  3. dune < "3.22" & with-test
  4. cmdliner with-test = "false" & >= "1.1.0" | with-test & >= "1.2.0"

  1. ambient-context >= "0.2"
  2. ask
  3. ask-integrator
  4. autofonce
  5. autofonce_config
  6. autofonce_core
  7. autofonce_lib
  8. autofonce_m4
  9. autofonce_misc
  10. autofonce_patch
  11. autofonce_share
  12. awsm-codegen
  13. bastet < "2.0.0"
  14. bitpack_serializer
  15. brisk-reconciler
  16. CamelCase
  17. canary >= "0.0.4"
  18. claudius
  19. coap
  20. coap-core
  21. coap-server-lwt
  22. diff
  23. diskuvbox < "0.2.0"
  24. dream-inertia
  25. drom
  26. drom_lib
  27. drom_toml
  28. dump_ocamlformat
  29. dune-release >= "2.2.0"
  30. dune_deps_extra
  31. ephemeral
  32. ez_cmdliner >= "0.2.0"
  33. ez_config >= "0.2.0"
  34. ez_file >= "0.2.0"
  35. ez_hash < "0.5.3"
  36. ez_opam_file
  37. ez_search
  38. ez_subst
  39. flux
  40. fluxt
  41. fromager
  42. giflib
  43. guardian != "0.1.0"
  44. header-check
  45. html_of_jsx >= "0.0.6"
  46. js_of_ocaml-webgpu >= "0.2"
  47. junit >= "2.2.0"
  48. junit_alcotest >= "2.2.0"
  49. junit_ounit >= "2.2.0"
  50. letters >= "0.2.0" & != "0.3.1"
  51. lunar
  52. melange-fest
  53. melange-fetch >= "0.2.0"
  54. melange-json >= "1.2.0"
  55. melange-radix-icons >= "0.1.0"
  56. melange-str
  57. merge-fmt >= "0.4"
  58. miou
  59. mlx
  60. module-graph
  61. mqtt
  62. noCanren >= "0.3.0~alpha1"
  63. ocaml-lsp-server < "1.9.0" | >= "1.21.0-4.14" & < "1.25.0"
  64. ocamlmerlin-mlx >= "0.11"
  65. ocp-search
  66. ocplib_stuff >= "0.3.0"
  67. oktree
  68. opam-bin >= "0.9.5"
  69. opam_bin_lib >= "0.9.5"
  70. opentelemetry >= "0.12"
  71. owi >= "0.2"
  72. parseff < "0.2.0"
  73. polars
  74. polars_async
  75. ppx_deriving_jsonschema
  76. prelude >= "0.4"
  77. primavera
  78. psmt2-frontend >= "0.3.0"
  79. query-json
  80. quickjs >= "0.2.0"
  81. rea < "0.2.0"
  82. react-rules-of-hooks-ppx
  83. reason-react = "0.16.0"
  84. reason-react-ppx = "0.16.0"
  85. red-black-tree
  86. runtime_events_tools = "0.5.3"
  87. scope
  88. server-reason-react = "0.4.0"
  89. signal
  90. sihl < "0.1.0"
  91. slipshow >= "0.1.1"
  92. slugline
  93. smtml >= "0.10.0" & < "0.24.0"
  94. solidity-alcotest
  95. solidity-common
  96. solidity-parser
  97. solidity-test
  98. solidity-typechecker
  99. spectrum >= "0.7.0"
  100. sqids
  101. styled-ppx
  102. synchronizer
  103. tabr
  104. tezt >= "4.3.0"
  105. virtfs
  106. yocaml >= "2.0.0"
  107. zanuda != "1.1.0"

Conflicts

None