v2.0.0-alpha

Added

• Added support for 32 bits compiler variants.
• Added semver-style version matching support.
• Cache opam root (~/.opam on Unix, D:\.opam on Windows), opam download-cache (~/.opam/download-cache on Unix, D:\.opam\download-cache on Windows), and opam local switch (_opam).
• If dune-cache enabled, install dune, automatically configure the dune cache for the most efficient use in CI (exports DUNE_CACHE=enabled, DUNE_CACHE_TRANSPORT=direct. TRANSPORT must be direct, not daemon, to speed up the opam install process and to support Windows: ocaml/dune#4166, ocaml/dune#4167), and share the dune cache directory for each run.
• If opam-pin is enabled, pin the local packages specified by opam-local-packages.
• If opam-depext is enabled, install the system dependencies specified by opam-local-packages via depext
• If opam-disable-sandboxing is enabled, sandboxing is disabled for all platforms except Windows. (Sandboxing is always disabled on the Windows runners due to limitations of opam.)
• The profiling functionality allows us to check the duration of each group if debug mode is enabled. (https://docs.github.com/en/actions/managing-workflow-runs/enabling-debug-logging)

Changed

• The Windows runners install mingw64-i686-gcc-core and mingw64-i686-gcc-g++ for 32 bit compiler variant support.
• Clean the log output by grouping some operations.
• The compiler will be initialised in all platforms with an opam local switch to eliminate differences between platforms and prepare for full dependency caching in the future.
• The macOS and Ubuntu runners install and cache opam from the GitHub release directly without the system package manager.
• The macOS and Ubuntu runners install darcs and mercurial.
• The Windows runners install mercurial.
• Export OPAMCOLOR=always.
• Export OPAMERRLOGLEN=0.
• Export OPAMPRECISETRACKING=1.
• Export OPAMSOLVERTIMEOUT=500.
• Export OPAMROOT=D:\.opam on the Windows runners.
• Export OPAMVERBOSE=true if the actions debug mode is enabled. (https://docs.github.com/en/actions/managing-workflow-runs/enabling-debug-logging)
• Export MSYS=winsymlinks:native for @actions/cache on the Windows runners.
• Export HOME=%USERPROFILE% for opam on the Windows runners.

Removed

• The ocaml-version input has been removed. Use the ocaml-compiler instead.
• The simplified version specifying scheme (e.g. 4.12.0) support has been removed.

Fixed

• Use the appropriate file system behavior parameters on the Windows runners. (R2L:1, R2R:1)
• Add ppa: avsm/musl on 18.04 and older Ubuntu runners.
• Pass --enable-shell-hook to opam init fixes a bug that must be run via opam exec in subsequent steps.
• The Ubuntu runners install gcc-multilib, g++-multilib for ocaml-option-32bit.

v1.1.11

Changed

• Stop setting switch jobs variable on Windows (OPAMJOBS is sufficient).

v1.1.10

Changed

• Run brew update before set up to avoid an issue with Bintray transition period.

v1.1.9

Fixed

• Further fix to switch initialisation.

v1.1.8

Changed

• The Windows opam wrapper is fractionally less-archaically named opam.cmd, with no loss in arcaneness.
• Export CYGWIN_ROOT on the Windows runners, allowing bash to be invoked as %CYGWIN_ROOT%\bin\bash/$env:CYGWIN_ROOT\bin\bash (and similarly for Cygwin setup-x86_64.exe).
• The Windows runner no longer prepends %CYGWIN_ROOT%\bin to PATH.

Fixed

• Switches in Unix are now properly initialized before running depext.

v1.1.7

Changed

• Ubuntu and macOS runners no longer display "No switch is currently installed." before building the compiler.
• Ubuntu no longer installs the system ocaml packages.
• macOS no longer builds two compilers on every run.
• Upgrade opam to 2.0.8 for Linux VMs.

v1.1.6

Changed

• Windows installs Cygwin to D:\cygwin, using faster Azure temporary storage.

v1.1.5

Changed

Reduce build time by exporting modified OPAMJOBS environment variable.

v1.1.4

Changed

Windows installs mingw64-x86_64-gcc-g++ so GitHub Action can build libraries that require it.

v1.1.3

Security

• Update the @actions/core package to address CVE-2020-15228.