Articles écrits par Louis Gesbert

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Uncaught exception: Not_found This blog post probably won't teach anything new to OCaml veterans; but for the others, you might be glad to learn that this very basic, yet surprisingly little-known feature of OCaml will give you backtraces with source file positions on any uncaught exception. Since i... (Lire plus)

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Distributing OCaml software on opam is great (if I dare say so myself), but sometimes you need to provide your tools to an audience outside of the OCaml community, or just without recompilations or in a simpler way. However, just distributing the locally generated binaries requires that the users ha... (Lire plus)

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Feedback on this post is welcomed on Discuss! We are happy to announce the release of opam 2.1.0. Many new features made it in (see the pre-release changelogs or release notes for the details), but here are a few highlights. What's new in opam 2.1? Integration of system dependencies (formerly the op... (Lire plus)

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Feedback on this post is welcomed on Discuss! We are pleased to announce the minor release of opam 2.0.9. This new version contains some back-ported fixes. New features Back-ported ability to load upgraded roots read-only; allows applications compiled with opam-state 2.0.9 to load a root which has b... (Lire plus)

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We are pleased to announce the minor release of opam 2.0.8. This new version contains some backported fixes: Critical for fish users! Don't add . to PATH. [#4078] Fix sandbox script for newer ccache versions. [#4079 and #4087] Fix sandbox crash when ~/.cache is a symlink. [#4068] User modifications ... (Lire plus)

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We are happy to announce a alpha for opam 2.1.0, one year and a half in the making after the release of 2.0.0. Many new features made it in (see the complete changelog or release note for the details), but here are a few highlights of this release. Release highlights The two following features have ... (Lire plus)

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We are pleased to announce the minor release of opam 2.0.7. This new version contains backported small fixes: Escape Windows paths on manpages [#4129 @AltGr @rjbou] Fix opam installer opam file [#4058 @rjbou] Fix various warnings [#4132 @rjbou @AltGr - fix #4100] Fix dune 2.5.0 promote-install-files... (Lire plus)

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We are happy to announce that our venerable "TryOCaml" service is being retired and replaced by a new, modern version based upon our work on Learn-OCaml. → Try it here ← The new interface provides an editor panel besides the familiar top-level, error and warning positions highlighting, the lates... (Lire plus)

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We are pleased to announce the minor release of opam 2.0.6. This new version contains some small backported fixes and build update: Don't remove git cache objects that may be used [#3831 @AltGr] Don't include .gitattributes in index.tar.gz [#3873 @dra27] Update FAQ uri [#3941 @dra27] Lock: add warni... (Lire plus)

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Nous sommes fiers d’annoncer la release (mineure) d’ opam 2.0.5. Cette nouvelle version contient des mises à jours de build et correctifs. Plus d’information... (Lire plus)

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We are pleased to announce the minor release of opam 2.0.5. This new version contains build update and small fixes: Bump src_ext Dune to 1.6.3, allows compilation with OCaml 4.08.0. [#3887 @dra27] Support Dune 1.7.0 and later [#3888 @dra27 - fix #3870] Bump the ocaml_mccs lib-ext, to include latest ... (Lire plus)

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We are pleased to announce the release of opam 2.0.4. This new version contains some backported fixes: Sandboxing on macOS: considering the possibility that TMPDIR is unset [#3597 @herbelin - fix #3576] display: Fix opam config var display, aligned on opam config list [#3723 @rjbou - rel. #3717] pin... (Lire plus)

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This blog post looks back on some of the improvements in opam 2.0, and gives tips on the new workflows available. Package development environment management Opam 2.0 has been vastly improved to handle locally defined packages. Assuming you have a project ~/projects/foo, defining two packages foo-lib... (Lire plus)

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We are pleased to announce the release of opam 2.0.3. This new version contains some backported fixes: Fix manpage remaining $ (OPAMBESTEFFORT) Fix OPAMROOTISOK handling Regenerate missing environment file Installation instructions (unchanged): From binaries: run or download manually from the Github... (Lire plus)

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We are pleased to announce the release of opam 2.0.2. As sandbox scripts have been updated, don't forget to run opam init --reinit -ni to update yours. This new version contains mainly backported fixes: Doc: update man page add message for deprecated options reinsert removed ones to print a deprecat... (Lire plus)

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We are pleased to announce the release of opam 2.0.1. This new version contains mainly backported fixes, some platform-specific: Cold boot for MacOS/CentOS/Alpine Install checksum validation on MacOS Archive extraction for OpenBSD now defaults to using gtar Fix compilation of mccs on MacOS and Nix p... (Lire plus)

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We are happy to announce the final release of opam 2.0.0. A few weeks ago, we released a last release candidate to be later promoted to 2.0.0, synchronised with the opam package repository upgrade. You are encouraged to update as soon as you see fit, to continue to get package updates: opam 2.0.0 su... (Lire plus)

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A few days ago, we released opam 2.0.0~rc4, and explained that this final release candidate was expected be promoted to 2.0.0, in sync with an upgrade to the opam package repository. So here are the details about this! If you are an opam user, and don't maintain opam packages You are encouraged to u... (Lire plus)

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We are happy to announce the opam 2.0.0 final release candidate! 🍾 This release features a few bugfixes over Release Candidate 3. It will be promoted to 2.0.0 proper within a few weeks, when the official repository format switches from 1.2.0 to 2.0.0. After that date, updates to the 1.2.0 reposit... (Lire plus)

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We are pleased to announce the release of a third release candidate for opam 2.0.0. This one is expected to be the last before 2.0.0 comes out. Changes since the 2.0.0~rc2 are, as expected, mostly fixes. We deemed it useful, however, to bring in the following: a new command opam switch link that all... (Lire plus)

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We are pleased to announce the release of a second release candidate for opam 2.0.0. This new version brings us very close to a final 2.0.0 release, and in addition to many fixes, features big performance enhancements over the RC1. Among the new features, we have squeezed in full sandboxing of packa... (Lire plus)

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We are pleased to announce a first release candidate for the long-awaited opam 2.0.0. A lot of polishing has been done since the last beta, including tweaks to the built-in solver, allowing in-source package definitions to be gathered in an opam/ directory, and much more. With all of the 2.0.0 featu... (Lire plus)

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After a few more months brewing, we are pleased to announce a new beta release of opam. With this new milestone, opam is reaching feature-freeze, with an expected 2.0.0 by the beginning of next year. This version brings many new features, stability fixes, and big improvements to the local developmen... (Lire plus)

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This blog will cover yet another aspect of the improvements opam 2.0 has over opam 1.2. I may be a little more technical than previous issues, as it covers a feature directed specifically at packagers and repository maintainers, and regarding the package definition format. Specifying dependencies in... (Lire plus)

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After the opam build feature was announced followed a lot of discussions, mainly having to do with its interface, and misleading name. The base features it offered, though, were still widely asked for: a way to work directly with the project in the current directory, assuming it contains definitions... (Lire plus)

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Among the areas we wanted to improve on for opam 2.0 was the handling of switches. In opam 1.2, they are simply accessed by a name (the OCaml version by default), and are always stored into ~/.opam/. This is fine, but can get a bit cumbersome when many switches are in presence, as there is no ... (Lire plus)

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UPDATE: after discussions following this post, this feature was abandoned with the interface presented below. See this post for the details and the new interface! The new opam 2.0 release, currently in beta, introduces several new features. This post gets into some detail on the new opam build comma... (Lire plus)

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UPDATE (2017-02-14): A beta2 is online, which fixes issues and performance of the opam build command. Get the new binaries, or recompile the opam-devel package and replace the previous binary. We are pleased to announce that the beta release of opam 2.0 is now live! You can try it already, bootstrap... (Lire plus)

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opam-lib 1.3 The package for opam-lib version 1.3 has just been released in the official opam repository. There is no release of opam with version 1.3, but this is an intermediate version of the library that retains compatibility of the file formats with 1.2.2. The purpose of this release is twofold... (Lire plus)

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We are pleased to announce a preview release for opam 2.0, with over 700 patches since 1.2.2. Version 2.0~alpha4 has just been released, and is ready to be more widely tested. This version brings many new features and changes, the most notable one being that OCaml compiler packages are no longer spe... (Lire plus)

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NOTE (September 2016): updated proposal from OCaml 2016 workshop is available, including links to prototype implementation. This is an initial proposal on signing the OPAM repository. Comments and discussion are expected on the platform mailing-list. The purpose of this proposal is to enable a secur... (Lire plus)

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OPAM 1.2.2 has just been released. This fixes a few issues over 1.2.1 and brings a couple of improvements, in particular better use of the solver to keep the installation as up-to-date as possible even when the latest version of a package can not be installed. Upgrade from 1.2.1 (or earlier) See the... (Lire plus)

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OPAM 1.2.1 has just been released. This patch version brings a number of fixes and improvements over 1.2.0, without breaking compatibility. Upgrade from 1.2.0 (or earlier) See the normal installation instructions: you should generally pick up the packages from the same origin as you did for the last... (Lire plus)

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We are very proud to announce the availability of OPAM 1.2.0. Upgrade from 1.1 Simply follow the usual instructions, using your preferred method (package from your distribution, binary, source, etc.) as documented on the homepage. NOTE: There are small changes to the internal repository format (~/.o... (Lire plus)

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Most package managers support some pin functionality to ensure that a given package remains at a particular version without being upgraded. The stable OPAM 1.1 already supported this by allowing any existing package to be pinned to a target, which could be a specific released version, a local filesy... (Lire plus)

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We are proud to announce that OPAM 1.1.1 has just been released. This minor release features mostly stability and UI/doc improvements over OPAM 1.1.0, but also focuses on improving the API and tools to be a better base for the platform (functions for opam-doc, interface with tools like opamfu and op... (Lire plus)

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OPAM 1.1.0 is ready, and we are shipping a release candidate for packagers and all interested to try it out. This version features several bug-fixes over the September beta release, and quite a few stability and usability improvements. Thanks to all beta-testers who have taken the time to file repor... (Lire plus)

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Since our last activity report we have released the first stable versions of two projects: OPAM, an installation manager for OCaml source packages, and ocp-indent, an indentation tool. We have already described the basics of OPAM in two precedent blog posts, so today we will focus on the release of ... (Lire plus)

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OPAM is a source-based package manager for OCaml. It supports multiple simultaneous compiler installations, flexible package constraints, and a Git-friendly development workflow. I have recently announced the beta-release of OPAM on the caml-list, and this blog post introduces the basics to new OPAM... (Lire plus)