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@AltGr AltGr released this 21 Apr 12:26
· 3681 commits to master since this release
2.1.0-alpha
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This is the alpha release of opam 2.1.0.

This alpha release contains many new features, please see blog post for some highlights and upgrade instructions.

Binaries and full archive are signed by @AltGr.

Changelog (possibly scripts breaking changes are prefixed with ✘):

New features

Recursive pin

Opam now handles lookup for opam files on subdirectories with recursive, subpath based, and subpath recursive pin: --recursive and --subpath PATH options. On recursive mode, opam goes through subdirectories to find opam files & pin them to their subdirectories. On subpath based mode, opam goes to the given subdirectory to find opam file & pin it to this subdirectory.

Switch Invariant

Define switch base packages as a switch invariant, a generic dependency formula instead of an immutable specific package/version.

  • Define switch invariants rather than "base packages" [#3894 @AltGr] {2.1.0-alpha}

  • Don't warn on switch creation with 'ocaml' as invariant [#4108 @AltGr] {2.1.0-alpha}

  • Better error handling on switch creation [#4121 @AltGr] {2.1.0-alpha}

Lock

opam-lock was during a long time an opam plugin, and it is now integrated into opam. Option --locked permits to lock an opam package, according the current switch. It produces a locked file (by default <pkgname>.opam.locked, can be specified with --lock-suffix) that contains the original opam file with its depends: field all package are set to their exact version available in the current switch.

Options configuration

Replace switch and global variables settings opam config set options, by opam var and opam option to generalize them to all modifiable options and variables:

  • opam var|option: list modifiable options and their values

  • opam var|option foo: display foo value, available for all

  • opam var|option foo(=|-=|+=)bar: update foo value

  • opam var|option foo=: remove/revert foo value

By default, acts on switch scope. It can be specified with --global or --switch sw.

It deprecates opam config (set|unset|set-global-unset-global) commands.

  • Add configuration modifications as opam config subcommands [#3992 @rjbou] {2.1.0-alpha}

  • opam var and opam option outside of opam config [#4116 @rjbou - fix #4119] {2.1.0-alpha}

  • Enable option var optim switch load [#4138 @rjbou] {2.1.0-alpha}

Depext

opam-depext is also a long time opam plugin, used to show / install external dependencies of opam packages. It is now fully integrated in the opam workflow:

  • check of installed package dependencies

  • on install, check that required dependencies are present, show / propose to install if not

Global configuration option depext, depext-verify, depext-cannot-install, depext-run-installs, and depext-bypasspermit to configure depext use and interactions. CLI options--assume-depextsand--no-depexts` can also be used for a single command.

New options

Install

  • opam install --check <pkg> checks that <pkg> dependencies are already installed in the switch. It reports missing ones and exits with 1, 0 otherwise. It is used on a check only purpose, additionally to --deps-only. [#3854 @rjbou - fix #3823] {2.1.0-alpha}

  • --ignore-conflicts to use with --deps-only in case it is needed to install dependencies without taking conflicts into account. [#3853 @rjbou - fix #3846] {2.1.0-alpha}

Show

  • opam show --just-file <file> shows information of a given file, without loading the switch state. It can be combined with other options, as field filter --field. It deprecates --file option. [#3729 @rjbou - fix #3721] {2.1.0-alpha}

  • opam show --all-versions <pkg> displays information of all versions of the given package. It can be used in combination of field filter. [#3867 @rjbou - fix #2980] {2.1.0-alpha}

  • opam show --sort <pkg> display on stdout a sorted opam file: all fields are alphabetically sorted. [#3866 @rjbou - fix ocaml-opam/opam2web#173] {2.1.0-alpha}

  • Better error handling. [#4118 @rjbou - fix #3875] {2.1.0-alpha}

Lint

  • opam lint --check-upstream enables lint checks on archive urls. This option lead to download archives to check their checksum. [#3758 @rjbou] {2.0.5}

List

  • --silent to not write in the output, exit with return code 0 if the list is not empty, 1 otherwise. [#3533 @rjbou - fix #3525] {2.0.1}

Env

  • opam env --check permit to indicates if an opam environment is synchronized: returns 0 if up-to-date, 1 otherwise. [#4074 @rjbou - fix #3725] {2.1.0-alpha}

Switch export

  • --freeze option record VCS commit hash when a VCS url is specified. [#4055 @hannesm] {2.1.0-alpha}

  • With --full option, include extra-files in switch export, on import create an overlay directory with the file contents. [#4040 @hannesm] {2.1.0-alpha}

Enhancements, updates, and fixes

Repository Management

  • Optimize repository loading: we store the repository contents as .tar.gz files in ~/.opam/repo instead. Rather than resorting to a complex in-memory structure, we just untar them to /tmp when they need to be read, and re-tar them after modification (opam update, or format upgrade only). Then we let the OS disk cache do the job: in normal operation, the tree never needs to be flushed to disk, and loading the .tar.gz is orders of magnitude faster than loading the individual files. [#3752 @AltGr - fix l#3721] {2.1.0-alpha}

Fixes

  • Remove mismatching extra-files: sort list before comparing them. [#3744 @rjbou] {2.0.4}

  • Handle failure or interruption of tar during opam update. [#3861 @AltGr] {2.1.0-alpha}

  • Fallback in case repository archive doesn't exist. [#4008 @rjbou] {2.1.0-alpha}

  • In case repository archive is corrupted, delete it and ask to launch an update. [#4075 @rjbou - fix #4053] {2.1.0-alpha}

  • When adding a repository, an error is displayed in case of mismatching urls, now both urls are displayed. [#4086 @rjbou - fix #4085] {2.1.0-alpha}

Update

  • Handle url backend change to VCS of a package from repository. [#4007 @rjbou - fix #3991] {2.1.0-alpha}

Switch & install

  • Allow local compiler switch creation. [#3720 @rjbou - fix #3713] {2.1.0-alpha}

  • Fix multiple compiler candidate. [#3884 @rjbou - fix #3874] {2.1.0-alpha}

  • Make reinstall handling stricter. [#3907 @AltGr] {2.1.0-alpha}

List

Show

  • opam show with local opam file returns local file information. Fixes also the non 1.2 conversion to 2.0 format of local files with opam show --raw. [#3536 @rjbou - fix #3423] {2.0.1}

  • Fields are no longer required to end with a colon. [#3931 @rjbou] {2.1.0-alpha}

  • ✘ With --normalise disable terminal width wrapping. [#3868 @rjbou - fix #3751] {2.1.0-alpha}

  • String fields printed with quotes, as lists. [#3368 @rjbou - fix #3365] {2.0.1}

  • Remove pin depends messages. [#3679 @rjbou] {2.0.2}

Pinning

  • Update source of (version) pinned directory [#3726 @rjbou - fix #3651] {2.0.4}

  • Pin edit: fix editing an opam file without a name field. [#3535 @rjbou] {2.0.1}

  • Upgrade pin depends on pinning. [#3684 @rjbou - fix #3508] {2.0.2}

  • Update pin-depends confirmation message to add a skip option. [#3852 @rjbou - fix #3840] {2.1.0-alpha}

  • To avoid lint warning 57 (description error) on 1.2 opam file pinning, add auxiliary files (descr, url) before linting. [#3687 @rjbou] {2.0.2}

  • Fix --ignore-pin-depends with autopin. [#3736 @AltGr] {2.0.4}

  • Fix pin not installing/upgrading already pinned package. [#3800 @AltGr] {2.0.4}

Working directory

  • Add OPAMDROPWORKINGDIR environment variable for C. [#3792 @rjbou - fix #3727] {2.1.0-alpha}

  • Don't restrain copy to versioned file. [#3759 @rjbou] {2.1.0-alpha}

  • Don't fetch sources when working-dir is set. [#4046 @rjbou] {2.1.0-alpha}

  • Update in place source copy:

    • review sync_dirty on VCS:
      • use VCS to synchronize, then rsync & remove others files
      • exclude _build, _opam & VCS directories
    • when --inplace-build is given, it does a dirty synchronization of the
      sources, in order to keep tracking package stats (clean, local or dirty). [#3948 @rjbou] {2.1.0-alpha}

  • Fix working-dir messages on update command. [#3824 @rjbou] {2.1.0-alpha}

  • Working-dir fixes. [#3982 @rjbou] {2.1.0-alpha}

Download & url management

Download

  • Don't execute validation hook if update is empty. [#3490 @hannesm] {2.0.1}

  • Don't check hash with --no-checksum on pull_upstream. [#3658 @rjbou - fix #3652] {2.0.2}

  • Update download errors handling during actions processing. [#3811 @AltGr] {2.1.0-alpha}

  • Update ftp command, to pass url last. [#3910 @hannesm] {2.1.0-alpha}

  • Terminate (with double dashes) list of command-line download option. [#3913 @cfcs] {2.1.0-alpha}

VCS

  • Git: fallback, fetch all repository remotes to get SHA1 with git < 2.1. [#3561 @rjbou - fix #3523 #3548] {2.0.1}

  • Fix hg opam1.2 url parsing. [#3754 @rjbou] {2.0.4}

  • Repository: remove 'file://' prefix for darcs. [#3761 @rjbou] {2.1.0-alpha}

  • Use git -c diff.noprefix=false diff. [#3788/#3628 @Blaisorblade - fix #3627] {2.0.4}

  • Don't remove git cache objects that may be used. [#3831 @AltGr - fix #3828] {2.0.6}

  • Don't include .gitattributes in index.tar.g. [#3873 @dra27] {2.0.6}

  • Opam{Git,Hg}: Fix diffs in presence of binary file. [#3879 @kit-ty-kate] {2.1.0-alpha}

  • Set core.autocrlf and core.eol for Git remotes. This change ensures that Git always disables text file line-ending normalization when cloning changes from a Git remote. [#3882 @dra27] {2.1.0-alpha}

  • Add a git clean on reset_tree to keep source dir clean. [#3948 @rjbou] {2.1.0-alpha}

Lint

New lint checks

Updates

Fixes

Initialization

opam init

  • Don't fail if empty compiler given. [#3633 @rjbou - fix #3614] {2.0.2}

  • Retrieve root is ok from global options instead of initialization. [#3704 @rjbou - fix #3695] {2.0.3}

  • Default configuration file: add getconf to required tools. [#3813 @rjbou] {2.1.0-alpha}

  • Clarify message in opam init --yes. [#3893 @dra27] {2.1.0-alpha}

  • Shell setup: don't advice an infinite sourcing loop. [#3832 @rjbou] {2.1.0-alpha}

  • Default configuration file: Add compilation target globals, sys-ocaml-arch, sys-ocaml-cc, and sys-ocaml-libc`. [#3900 @dra27] {2.1.0-alpha}

  • Ensure that environment is initialized lazily, not before init functions are called [#4111 @gasche] {2.1.0-alpha}

  • Fix OPAMLOGS handling, and logdir opam_init argument [#4117 @rjbou - fix #4076] {2.1.0-alpha}

opam config / variable configuration

  • Harmonization of opam config list and opam config var <var>: resolve variable first with switch state (loading it only for package defined variables), otherwise, global state. [#3723 @rjbou - fix #3717] {2.0.4}

  • Include base packages configuration variables in opam config report. [#3798 @dra27] {2.1.0-alpha}

  • Determine jobs number at launch (OpamStateConfig) [#4004 @rjbou - fix #3986] {2.1.0-alpha}

  • Read jobs variable from OpamStateConfig [#3881 @dra27] {2.0.5}

  • opam exec: display command not found message [#4133 @rjbou - fix #4131] {2.0.7}

Portability

Windows

  • Fully test native Windows in the testsuite. [#3260 @dra27] {2.1.0-alpha}

  • Allow native Windows to use Cygwin tool. [#3348 @dra27] {2.1.0-alpha}

  • Deal with Windows path conventions (backslashes, .exe, etc.) [#3350 @dra27] {2.1.0-alpha}

  • Correct display of dir separator on Windows. [#3893 @dra27] {2.1.0-alpha}

  • Tested wrong variable in OPAMW_HasGlyp. [#3898 @dra27] {2.1.0-alpha}

  • Escape Windows paths on manpages [#4129 @AltGr @rjbou - fix #4100] {2.0.7}

BSD

  • Add gtar as OpenBSD required tool, as tar does not support the J flag. [#3538 @adamsteen] {2.0.1}

  • Default use fetch on FreeBSD, ftp on OpenBSD. [#3904 @hannesm] {2.1.0-alpha}

MacOS

Shell files

Sandbox

  • Respect user's TMPDIR when invoking bwrap. [#3487 @3noch] {2.0.1}

  • Adding way to mount unusual path in bwrap sandbox: introduction of OPAM_USER_PATH_RO environment variable. [#3540 @ErwanGa] {2.0.1}

  • Make /var read-only instead of empty and rw. [#3605 @bobot - fix #3604] {2.0.2}

  • Handle symlinks in bwrap. [#3661 @mroch - fix #3660] {2.0.2}

  • Change one-line conditional to if statement which was incompatible with set -e. [#3645 @rjbou - fix #3607] {2.0.2}

  • Do not fail if $HOME/.ccache is missing. [#3957 @mseri - fix discuss thread] {2.0.6}

  • Add dune cache as rw. [#4019 @rjbou - fix #4012] {2.0.6}

  • Don't overwrite user's modification. [#4020 #4092 @rjbou] {2.1.0-alpha}

  • Handle CCACHE_DIR environment variable in case ccache call fail. [#4087 @rjbou - fix #4079] {2.1.0-alpha}

  • Follow links of ~/.cache & ~/.cache/dune for bwrap call. [#4087 @rjbou - fix #4086] {2.1.0-alpha}

MacOS specific

Environment file

fish

zsh

  • Update zsh check interactive terminal (ohmyzsh fix) [#4095 @OCamlPro-mattiasdrp #4128 @AltGr] {2.1.0-alpha}

opam admin

  • Handle non http backend on repository upgrade: compute hash only for http or distant rsync backend [#3596 @rjbou - fix #3590] {2.0.1}

  • Add package selection to add-hashes [#3787 @rjbou - fix #3767] {2.1.0-alpha}

  • Download files (patches, etc.) using a safe filename. [#3900 @dra27] {2.1.0-alpha}

  • With --add-constraints, add constraint on depopts. [#4002 @rjbou - fix #3994] {2.1.0-alpha}

  • Fix opam-admin.to. [#3885 @dra27] {doc}

Internal enhancements

Opam file

  • Add format-version field to all files. [#3478 #3906 @AltGr] {2.1.0-alpha}

  • Clarify pin depend parse error. [#3762 @rjbou] {2.1.0-alpha}

  • Opam file extensions (x- fields) enhancement. [#4049 @hannesm] {2.1.0-alpha}

Inner Actions

Solver

  • Fix closure computation in the presence of cycle. [#3670 @AltGr - fix #3662 #3666] {2.0.2}

  • Fix some cases of listing coinstallable package. [#3689 @AltGr] {2.0.2}

  • Add support for Z3 as a solver backend. [#3845 @AltGr] {2.1.0-alpha}

Scheduler

  • Interleave download actions with build/install actions. [#3777 @Armael] {2.1.0-alpha} [#4083 @rjbou - fix #4080] {2.1.0-alpha}

  • Generalization of the job scheduler: provide separate job pools for different subsets of the tasks. [#3778 @AltGr] {2.1.0-alpha}

  • Refactor the return types of OpamSolution.{apply,resolve_and_apply} [#3781 @Armael] {2.1.0-alpha}

  • Use the scheduler pools to respect the download-jobs parameter. [#3791 @AltGr] {2.1.0-alpha}

Internals

Upgrade 1.2 → 2.0

  • Upgrade to opam 2.0 format overlay opam files of pinned package. [#3528 @rjbou - fix #3513] {2.0.1}

  • Add Compiler file translation function. [#3530 @rjbou - fix ocaml/opam-repository#12523] {2.0.1}

  • Extract archived source files of version-pinned packages. [#3610 @rjbou - fix #3600] {2.0.2}

  • Add function to upgrade opam file, including its auxiliary files: descr, url, files/. [#3624 @rjbou] {2.0.2}

  • Set the right format-version field on upgrade. [#4014 @rjbou] {2.1.0-alpha}

UI

  • Streamline the output from download action. [#3794 @AltGr] {2.1.0-alpha}

  • Use a character that displays better on terminals for download action. [#3802 @AltGr] {2.1.0-alpha}

  • Change symbol for download action. [#3862 @AltGr] {2.1.0-alpha}

  • Include the version number in "compilation failed" message. [#4052 @Armael] {2.1.0-alpha}

Directory Tracking

  • Fix precise tracking mode:: missing to_hex conversion. [#3796 @rjbou] {2.0.4}

  • Check both size and mtime for cached entries. [#4038 @hannesm] {2.0.6}

  • Propagate --force to directory tracking revert function. [#4094 @rjbou - fix #4091] {2.1.0-alpha}

  • Add OpamDirTack.string_of_changes [#4107 @rjbou @hannesm] {2.1.0-alpha}

States

  • Introduce drop to replace ignore (unlock ..) for more lock-type-safety. [#3783 @gasche] {2.1.0-alpha} [#3812 @rjbou] {2.1.0-alpha}

  • Change OpamStateTypes.switch_state.conf_files from package_map to name_map [#3799 @dra27] {2.1.0-alpha}

  • Fix handling of availability outside of switches. [#3864 @AltGr] {2.1.0-alpha}

Formulas

  • Sorting formulas function. [#3945 @rjbou] {2.1.0-alpha}

  • Sort formula: fix compare_formula & add compare [#3960 @rjbou] {2.1.0-alpha}

System

  • Patch rewrite test. [#3456 @dra27] {2.1.0-alpha}

  • Tar extract fail error message: if a tar extract fails, it checks the presence of underlying commands (bzip2, xz, lzma, gzip) to display the error message in verbose mode. [#3502 @rjbou - fix #3497] {2.0.1}

  • Remove link only if it exists. [#3519 @rjbou - fix ocaml-opam/opam-depext#104] {2.0.1}

  • Catch signal to select ones that are really cancelling a blocking state (e.g. waiting for a lock to be released). [#3541 @rjbou] {2.0.4}

  • Set .out suffix for read_command_output stdout file. [#3644 @rjbou] {2.0.2}

  • Default opam root is resolved at creation, in order to have the correct linked path. [#3681 @rjbou - fix #3622] {2.0.2}

  • opam clean: ignore errors trying to remove directories. [#3732 @kit-ty-kate] {2.0.4}

  • Command errors display: differentiate command not found & permission denied. [#3865 @rjbou] {2.1.0-alpha}

  • Factorize option functions in OpamProcess [#4016 @nobrakal] {2.1.0-alpha}

  • Use ocaml code for looking up commands in PATH [#4072 @Armael] {2.1.0-alpha}

  • Copy files using OCaml code instead of calling to cp or install [#4064 @Armael] {2.1.0-alpha}

Variables

Misc

  • Reinsert and deprecate alias-of & no-autoinstall option. [#3685 @rjbou - fix #3390] {2.0.2}

  • Add of_json functions & crowbar. [#3776 @gasche] {2.1.0-alpha}

  • JSON (de)serialization for OpamParallel graph. [#3786 @gasche] {2.1.0-alpha}

  • Url: catch failure & specific exception. [#3946 @rjbou] {2.1.0-alpha}

  • Update: don't update installed dev package that is not pinned. [#3947 @rjbou] {2.1.0-alpha}

  • Use OpamArg helpers for option. [#4059 @rjbou] {2.1.0-alpha}

Build

Configure

  • Add patch & bunzip2 check. [#3531 @rjbou - fix #3520] {2.0.1}

  • Not having wget or curl is now only a hard-error if src_ext/archives doesn't contain the archives (i.e. if make -C src_ext cache-archives has not been run) which means that this should no longer be a requirement for building with the "full" tarball. [#3572 @dra27 - fix #3551] {2.0.1}

  • C++ test for MCCS is now moved to the correct place and the message as to whether the solver will be build should work correctly with --disable-checks. Note that not having a C++ compiler is not considered an error if --disable-checks is specified because configure is permitted to believe that the MCCS library exists even if it couldn't detect it. [#3572 @dra27] {2.0.1}

  • Fix developer mode option. [#3646 @rjbou] {2.1.0-alpha}

  • Fix cppo detection. [#3915 @rjbou] {2.0.5}

  • Ensure configure generates consistently. [#3935 @dra27] {2.1.0-alpha}

Documentation

Various contributors helped us to update and add code documentation:

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