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Infer rule targets in long-form rule stanzas as well #2494

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merged 4 commits into from
Aug 2, 2019

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NathanReb
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I added a couple tests for the rule target inferrence. There was one indeed but it wasn't testing the case from #2469.

I'm happy to add more tests to have better coverage of that feature and of course to provide a fix, as part of this PR or of a separate one, whichever works best for you!

@NathanReb
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It's also unclear what the proper fix is, i.e. whether it's to infer targets even when using (rule (action x)) instead of (rule x) or to improve the error message in such cases.

@rgrinberg
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Yes, we should infer targets in that case. Consider this form:

(rule
 (deps (:foo (glob_files *.foo))
 (action (with-stdout-to bar (run bla %{foo})))

It's clearly better that the bar target is inferred here rather than making the user go through variables.

@NathanReb
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Yeah that makes total sense! I'll do that!

@aalekseyev
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Thanks for the tests.

By the way, we generally have tests passing, even when they demonstrate undesirable behaviors. So when I assumed your test was passing I got a bit confused.

The test should demonstrate the current behavior and the good behavior should be described in a comment.

@NathanReb
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Ok! I'll fix the test so that it pass so we can merge this and fix it separately!

@NathanReb NathanReb requested a review from a user August 1, 2019 11:41
@NathanReb NathanReb changed the title Add tests for rule target inferrence Infer rule targets in long-form rule stanzas as well Aug 1, 2019
@NathanReb
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I pushed 2 new commits, one fixing the issue and one adding a test for the error case!

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This will need a change log entry as well. Let's put it under 2.0 for now. I'll probably put it in 1.12

Signed-off-by: Nathan Rebours <nathan.p.rebours@gmail.com>
Signed-off-by: Nathan Rebours <nathan.p.rebours@gmail.com>
Fixes ocaml#2469

Signed-off-by: Nathan Rebours <nathan.p.rebours@gmail.com>
File "dune", line 1, characters 0-34:
1 | (rule (action (echo "something")))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Error: Rule has no targets specified
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@rgrinberg, FWIW, I don't think this is "cannot be inferred", this is "can be inferred to be empty", which is a different situation. If the intention is to make something opaque to dune, you do need an external command. (I'm not saying one test is more important or better than the other, just that they test different things)

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Agreed. Did you mean to mention @NathanReb however? I'd also prefer a message like dune was not able to infer any targets and none were manually specified.

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I meant to mention you because you suggested echo was an appropriate replacement for "bash". I don't think "none were manually specified" is useful in this situation because that's misleading: specifying targets won't help.

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Yeah I added the test case to showcase that the error message could be improved. I'll add a different test for the no-target case and use bash in this one again.

I'll take a look at how to improve the error message here!

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Ah I see. So indeed we should have 2 messages:

  • No targets were specified
  • Dune did not infer any targets

@NathanReb would you like to improve dune to distinguish between these?

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@NathanReb there's still no need to use bash btw. Use system.

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I added the test case but from a very quick look it seems like it's going to take a tiny bit more effort to distinguish those two error cases so feel free to merge as it if you need to.

I'll work on that separately!

Signed-off-by: Nathan Rebours <nathan.p.rebours@gmail.com>
@rgrinberg rgrinberg merged commit 92ed100 into ocaml:master Aug 2, 2019
NathanReb added a commit to NathanReb/book that referenced this pull request Aug 7, 2019
This is required to make dependencies explicit as well, it is fixed in
ocaml/dune#2494 but in the meantime we have to
explicitly specify the target to use the long form.
NathanReb added a commit to NathanReb/book that referenced this pull request Aug 13, 2019
This is required to make dependencies explicit as well, it is fixed in
ocaml/dune#2494 but in the meantime we have to
explicitly specify the target to use the long form.
rgrinberg added a commit to rgrinberg/opam-repository that referenced this pull request Oct 31, 2019
…lugin, dune-private-libs and dune-glob (2.0.0+draft1)

CHANGES:

- Introduce `alias` and `package` fields to the `rule` stanza. This is the
  preferred way of attaching rules to aliases. (ocaml/dune#2744, @rgrinberg)

- Add field `(optional)` for executable stanzas (ocaml/dune#2463, fixes ocaml/dune#2433, @bobot)

- Infer targets for rule stanzas expressed in long form (ocaml/dune#2494, fixes ocaml/dune#2469,
  @NathanReb)

- Indicate the progress of the initial file tree loading (ocaml/dune#2459, fixes ocaml/dune#2374,
  @bobot)

- Build `.cm[ox]` files for executables more eagerly. This speeds up builds at
  the cost of building unnecessary artifacts in some cases. Some of these extra
  artifacts can fail to built, so this is a breaking change. (ocaml/dune#2268, @rgrinberg)

- Do not put the `<package>.install` files in the source tree unless `-p` or
  `--promote-install-files` is passed on the command line (ocaml/dune#2329, @diml)

- Change `implicit_transive_deps` to be false. Implicit transitive deps now must
  be manually enabled (ocaml/dune#2306, @rgrinberg)

- Compilation units of user defined executables are now mangled by default. This
  is done to prevent the accidental collision with library dependencies of the
  executable. (ocaml/dune#2364, fixes ocaml/dune#2292, @rgrinberg)

- Enable `(explicit_js_mode)` by default. (ocaml/dune#1941, @nojb)

- Add an option to clear the console in-between builds with
 `--terminal-persistence=clear-on-rebuild`

- Stop symlinking object files to main directory for stanzas defined `jbuild`
  files (ocaml/dune#2440, @rgrinberg)

- Library names are now validated in a strict fashion. Previously, invalid names
  would be allowed for unwrapped libraries (ocaml/dune#2442, @rgrinberg)

- mli only modules must now be explicitly declared. This was previously a
  warning and is now an error. (ocaml/dune#2442, @rgrinberg)

- Modules filtered out from the module list via the Ordered Set Language must
  now be actual modules. (ocaml/dune#2442, @rgrinberg)

- Actions which introduce targets where new targets are forbidden (e.g.
  preprocessing) are now an error instead of a warning. (ocaml/dune#2442, @rgrinberg)

- No longer install a `jbuilder` binary. (ocaml/dune#2441, @diml)

- Stub names are no longer allowed relative paths. This was previously a warning
  and is now an error (ocaml/dune#2443, @rgrinberg).

- Define (paths ...) fields in (context ...) definitions in order to set or
  extend any PATH-like variable in the context environment. (ocaml/dune#2426, @nojb)

- The `diff` action will always normalize newlines before diffing. Perviousy, it
  would not do this normalization for rules defined in jbuild files. (ocaml/dune#2457,
  @rgrinberg)

- Modules may no longer belong to more than one stanza. This was previously
  allowed only in stanzas defined in `jbuild` files. (ocaml/dune#2458, @rgrinberg)

- Remove support for `jbuild-ignore` files. They have been replaced by the the
  `dirs` stanza in `dune` files. (ocaml/dune#2456, @rgrinberg)

- Add a new config option `sandboxing_preference`, the cli argument `--sandbox`,
  and the dep spec `sandbox` in dune language. These let the user control the level of
  sandboxing done by dune per rule and globally. The rule specification takes precedence.
  The global configuration merely specifies the default.
  (ocaml/dune#2213, @aalekseyev, @diml)

- Remove support for old style subsystems. Dune will now emit a warning to
  reinstall the library with the old style subsystem. (ocaml/dune#2480, @rgrinberg)

- Add action (with-stdin-from <file> <action>) to redirect input from <file>
  when performing <action>. (ocaml/dune#2487, @nojb)

- Change the automatically generated odoc index to only list public modules.
  This only affects unwrapped libraries (ocaml/dune#2479, @rgrinberg)

- Set up formatting rules by default. They can be configured through a new
  `(formatting)` stanza in `dune-project` (ocaml/dune#2347, fixes ocaml/dune#2315, @emillon)

- Change default target from `@install` to `@all`. (ocaml/dune#2449, fixes ocaml/dune#1220,
  @rgrinberg)

- Include building stubs in `@check` rules. (@rgrinberg, ocaml/dune#2530)

- Get rid of ad-hoc rules for guessing the version. Dune now only
  relies on the version written in the `dune-project` file and no
  longer read `VERSION` or similar files (ocaml/dune#2541, @diml)

- In `(diff? x y)` action, require `x` to exist and register a
  dependency on that file. (ocaml/dune#2486, @aalekseyev)

- On Windows, an .exe suffix is no longer added implicitly to binary names that
  already end in .exe. Second, when resolving binary names, .opt variants are no
  longer chosen automatically. (ocaml/dune#2543, @nojb)

- Make `(diff? x y)` move the correction file (`y`) away from the build
  directory to promotion staging area. This makes corrections work with
  sandboxing and in general reduces build directory pollution. (ocaml/dune#2486,
  @aalekseyev, fixes ocaml/dune#2482)

- `c_flags`, `c_names` and `cxx_names` are now supported in `executable`
  and `executables` stanzas. (ocaml/dune#2562, @nojb)
  Note: this feature has been subsequently extended into a separate
  `foreign_stubs` field. (ocaml/dune#2659, RFC ocaml/dune#2650, @snowleopard)

- Remove git integration from `$ dune upgrade` (ocaml/dune#2565, @rgrinberg)

- Add a `--disable-promotion` to disable all modification to the source
  directory. There's also a corresponding `DUNE_DISABLE_PROMOTION` environment
  variable. (ocaml/dune#2588, fix ocaml/dune#2568, @rgrinberg)

- Add a `forbidden_libraries` field to prevent some library from being
  linked in an executable. This help detecting who accidently pulls in
  `unix` for instance (ocaml/dune#2570, @diml)

- Fix incorrect error message when a variable is expanded in static context:
  `%{lib:lib:..}` when the library does not exist. (ocaml/dune#2597, fix ocaml/dune#1541,
  @rgrinberg)

- Add `--sections` option to `$ dune install` to install subsections of .install
  files. This is useful for installing only the binaries in a workspace for
  example. (ocaml/dune#2609, fixes ocaml/dune#2554, @rgrinberg)

- Drop support for `jbuild` and `jbuild-ignore` files (ocaml/dune#2607, @diml)

- Add a `dune-action-plugin` library for describing dependencies direcly in
  the executable source. Programs that use this feature can be run by a new
  action (dynamic-run <progn> ...). (ocaml/dune#2635, @staronj, @aalekseyev)

- Stop installing the `ocaml-syntax-shims` binary. In order to use
  `future_syntax`, one now need to depend on the `ocaml-syntax-shims`
  package (ocaml/dune#2654, @diml)

- Add support for dependencies that are re-exported. Such dependencies
  are marked with`re_export` and will automatically be provided to
  users of a library (ocaml/dune#2605, @rgrinberg)

- Add a `deprecated_library_name` stanza to redirect old names after a
  library has been renamed (ocaml/dune#2528, @diml)

- Error out when a `preprocessor_deps` field is present but not
  `preprocess` field is. It is a warning with Dune 1.x projects
  (ocaml/dune#2660, @Julow)

- Dune will use `-output-complete-exe` instead of `-custom` when compiling
  self-contained bytecode executables whenever this options is available
  (OCaml version >= 4.10) (ocaml/dune#2692, @nojb)

- Add action `(with-accepted-exit-codes <pred> <action>)` to specify the set of
  successful exit codes of `<action>`. `<pred>` is specified using the predicate
  language. (ocaml/dune#2699, @nojb)

- Do not setup rules for disabled libraries (ocaml/dune#2491, fixes ocaml/dune#2272, @bobot)

- Configurator: filter out empty flags from `pkg-config` (ocaml/dune#2716, @AltGr)

- `no_keep_locs` is a no-op for projects that use `lang dune` older than 2.0. In
  projects where the language is at least `2.0`, the field is now forbidden.
  (ocaml/dune#2752, fixes ocaml/dune#2747, @rgrinberg)

- Extend support for foreign sources and archives via the `(foreign_library ...)`
  stanza as well as the `(foreign_stubs ...)` and `(foreign_archives ...)` fields.
  (ocaml/dune#2659, RFC ocaml/dune#2650, @snowleopard)

- Add (deprecated_package_names) field to (package) declaration in
  dune-project. The names declared here can be used in the (old_public_name)
  field of (deprecated_library_name) stanza. These names are interpreted as
  library names (not prefixed by a package name) and appropiate redirections are
  setup in their META files. This feaure is meant to migrate old libraries which
  do not follow Dune's convention of prefixing libraries with the package
  name. (ocaml/dune#2696, @nojb)

- The fields `license`, `authors`, `maintainers`, `source`, `bug_reports`,
  `homepage`, and `documentation` of `dune-project` can now be overriden on a
  per-package basis. (ocaml/dune#2774, @nojb)
rgrinberg added a commit to rgrinberg/opam-repository that referenced this pull request Oct 31, 2019
…lugin, dune-private-libs and dune-glob (2.0.0+draft1)

CHANGES:

- Introduce `alias` and `package` fields to the `rule` stanza. This is the
  preferred way of attaching rules to aliases. (ocaml/dune#2744, @rgrinberg)

- Add field `(optional)` for executable stanzas (ocaml/dune#2463, fixes ocaml/dune#2433, @bobot)

- Infer targets for rule stanzas expressed in long form (ocaml/dune#2494, fixes ocaml/dune#2469,
  @NathanReb)

- Indicate the progress of the initial file tree loading (ocaml/dune#2459, fixes ocaml/dune#2374,
  @bobot)

- Build `.cm[ox]` files for executables more eagerly. This speeds up builds at
  the cost of building unnecessary artifacts in some cases. Some of these extra
  artifacts can fail to built, so this is a breaking change. (ocaml/dune#2268, @rgrinberg)

- Do not put the `<package>.install` files in the source tree unless `-p` or
  `--promote-install-files` is passed on the command line (ocaml/dune#2329, @diml)

- Change `implicit_transive_deps` to be false. Implicit transitive deps now must
  be manually enabled (ocaml/dune#2306, @rgrinberg)

- Compilation units of user defined executables are now mangled by default. This
  is done to prevent the accidental collision with library dependencies of the
  executable. (ocaml/dune#2364, fixes ocaml/dune#2292, @rgrinberg)

- Enable `(explicit_js_mode)` by default. (ocaml/dune#1941, @nojb)

- Add an option to clear the console in-between builds with
 `--terminal-persistence=clear-on-rebuild`

- Stop symlinking object files to main directory for stanzas defined `jbuild`
  files (ocaml/dune#2440, @rgrinberg)

- Library names are now validated in a strict fashion. Previously, invalid names
  would be allowed for unwrapped libraries (ocaml/dune#2442, @rgrinberg)

- mli only modules must now be explicitly declared. This was previously a
  warning and is now an error. (ocaml/dune#2442, @rgrinberg)

- Modules filtered out from the module list via the Ordered Set Language must
  now be actual modules. (ocaml/dune#2442, @rgrinberg)

- Actions which introduce targets where new targets are forbidden (e.g.
  preprocessing) are now an error instead of a warning. (ocaml/dune#2442, @rgrinberg)

- No longer install a `jbuilder` binary. (ocaml/dune#2441, @diml)

- Stub names are no longer allowed relative paths. This was previously a warning
  and is now an error (ocaml/dune#2443, @rgrinberg).

- Define (paths ...) fields in (context ...) definitions in order to set or
  extend any PATH-like variable in the context environment. (ocaml/dune#2426, @nojb)

- The `diff` action will always normalize newlines before diffing. Perviousy, it
  would not do this normalization for rules defined in jbuild files. (ocaml/dune#2457,
  @rgrinberg)

- Modules may no longer belong to more than one stanza. This was previously
  allowed only in stanzas defined in `jbuild` files. (ocaml/dune#2458, @rgrinberg)

- Remove support for `jbuild-ignore` files. They have been replaced by the the
  `dirs` stanza in `dune` files. (ocaml/dune#2456, @rgrinberg)

- Add a new config option `sandboxing_preference`, the cli argument `--sandbox`,
  and the dep spec `sandbox` in dune language. These let the user control the level of
  sandboxing done by dune per rule and globally. The rule specification takes precedence.
  The global configuration merely specifies the default.
  (ocaml/dune#2213, @aalekseyev, @diml)

- Remove support for old style subsystems. Dune will now emit a warning to
  reinstall the library with the old style subsystem. (ocaml/dune#2480, @rgrinberg)

- Add action (with-stdin-from <file> <action>) to redirect input from <file>
  when performing <action>. (ocaml/dune#2487, @nojb)

- Change the automatically generated odoc index to only list public modules.
  This only affects unwrapped libraries (ocaml/dune#2479, @rgrinberg)

- Set up formatting rules by default. They can be configured through a new
  `(formatting)` stanza in `dune-project` (ocaml/dune#2347, fixes ocaml/dune#2315, @emillon)

- Change default target from `@install` to `@all`. (ocaml/dune#2449, fixes ocaml/dune#1220,
  @rgrinberg)

- Include building stubs in `@check` rules. (@rgrinberg, ocaml/dune#2530)

- Get rid of ad-hoc rules for guessing the version. Dune now only
  relies on the version written in the `dune-project` file and no
  longer read `VERSION` or similar files (ocaml/dune#2541, @diml)

- In `(diff? x y)` action, require `x` to exist and register a
  dependency on that file. (ocaml/dune#2486, @aalekseyev)

- On Windows, an .exe suffix is no longer added implicitly to binary names that
  already end in .exe. Second, when resolving binary names, .opt variants are no
  longer chosen automatically. (ocaml/dune#2543, @nojb)

- Make `(diff? x y)` move the correction file (`y`) away from the build
  directory to promotion staging area. This makes corrections work with
  sandboxing and in general reduces build directory pollution. (ocaml/dune#2486,
  @aalekseyev, fixes ocaml/dune#2482)

- `c_flags`, `c_names` and `cxx_names` are now supported in `executable`
  and `executables` stanzas. (ocaml/dune#2562, @nojb)
  Note: this feature has been subsequently extended into a separate
  `foreign_stubs` field. (ocaml/dune#2659, RFC ocaml/dune#2650, @snowleopard)

- Remove git integration from `$ dune upgrade` (ocaml/dune#2565, @rgrinberg)

- Add a `--disable-promotion` to disable all modification to the source
  directory. There's also a corresponding `DUNE_DISABLE_PROMOTION` environment
  variable. (ocaml/dune#2588, fix ocaml/dune#2568, @rgrinberg)

- Add a `forbidden_libraries` field to prevent some library from being
  linked in an executable. This help detecting who accidently pulls in
  `unix` for instance (ocaml/dune#2570, @diml)

- Fix incorrect error message when a variable is expanded in static context:
  `%{lib:lib:..}` when the library does not exist. (ocaml/dune#2597, fix ocaml/dune#1541,
  @rgrinberg)

- Add `--sections` option to `$ dune install` to install subsections of .install
  files. This is useful for installing only the binaries in a workspace for
  example. (ocaml/dune#2609, fixes ocaml/dune#2554, @rgrinberg)

- Drop support for `jbuild` and `jbuild-ignore` files (ocaml/dune#2607, @diml)

- Add a `dune-action-plugin` library for describing dependencies direcly in
  the executable source. Programs that use this feature can be run by a new
  action (dynamic-run <progn> ...). (ocaml/dune#2635, @staronj, @aalekseyev)

- Stop installing the `ocaml-syntax-shims` binary. In order to use
  `future_syntax`, one now need to depend on the `ocaml-syntax-shims`
  package (ocaml/dune#2654, @diml)

- Add support for dependencies that are re-exported. Such dependencies
  are marked with`re_export` and will automatically be provided to
  users of a library (ocaml/dune#2605, @rgrinberg)

- Add a `deprecated_library_name` stanza to redirect old names after a
  library has been renamed (ocaml/dune#2528, @diml)

- Error out when a `preprocessor_deps` field is present but not
  `preprocess` field is. It is a warning with Dune 1.x projects
  (ocaml/dune#2660, @Julow)

- Dune will use `-output-complete-exe` instead of `-custom` when compiling
  self-contained bytecode executables whenever this options is available
  (OCaml version >= 4.10) (ocaml/dune#2692, @nojb)

- Add action `(with-accepted-exit-codes <pred> <action>)` to specify the set of
  successful exit codes of `<action>`. `<pred>` is specified using the predicate
  language. (ocaml/dune#2699, @nojb)

- Do not setup rules for disabled libraries (ocaml/dune#2491, fixes ocaml/dune#2272, @bobot)

- Configurator: filter out empty flags from `pkg-config` (ocaml/dune#2716, @AltGr)

- `no_keep_locs` is a no-op for projects that use `lang dune` older than 2.0. In
  projects where the language is at least `2.0`, the field is now forbidden.
  (ocaml/dune#2752, fixes ocaml/dune#2747, @rgrinberg)

- Extend support for foreign sources and archives via the `(foreign_library ...)`
  stanza as well as the `(foreign_stubs ...)` and `(foreign_archives ...)` fields.
  (ocaml/dune#2659, RFC ocaml/dune#2650, @snowleopard)

- Add (deprecated_package_names) field to (package) declaration in
  dune-project. The names declared here can be used in the (old_public_name)
  field of (deprecated_library_name) stanza. These names are interpreted as
  library names (not prefixed by a package name) and appropiate redirections are
  setup in their META files. This feaure is meant to migrate old libraries which
  do not follow Dune's convention of prefixing libraries with the package
  name. (ocaml/dune#2696, @nojb)

- The fields `license`, `authors`, `maintainers`, `source`, `bug_reports`,
  `homepage`, and `documentation` of `dune-project` can now be overriden on a
  per-package basis. (ocaml/dune#2774, @nojb)
rgrinberg added a commit to rgrinberg/opam-repository that referenced this pull request Oct 31, 2019
…lugin, dune-private-libs and dune-glob (2.0.0+draft1)

CHANGES:

- Introduce `alias` and `package` fields to the `rule` stanza. This is the
  preferred way of attaching rules to aliases. (ocaml/dune#2744, @rgrinberg)

- Add field `(optional)` for executable stanzas (ocaml/dune#2463, fixes ocaml/dune#2433, @bobot)

- Infer targets for rule stanzas expressed in long form (ocaml/dune#2494, fixes ocaml/dune#2469,
  @NathanReb)

- Indicate the progress of the initial file tree loading (ocaml/dune#2459, fixes ocaml/dune#2374,
  @bobot)

- Build `.cm[ox]` files for executables more eagerly. This speeds up builds at
  the cost of building unnecessary artifacts in some cases. Some of these extra
  artifacts can fail to built, so this is a breaking change. (ocaml/dune#2268, @rgrinberg)

- Do not put the `<package>.install` files in the source tree unless `-p` or
  `--promote-install-files` is passed on the command line (ocaml/dune#2329, @diml)

- Change `implicit_transive_deps` to be false. Implicit transitive deps now must
  be manually enabled (ocaml/dune#2306, @rgrinberg)

- Compilation units of user defined executables are now mangled by default. This
  is done to prevent the accidental collision with library dependencies of the
  executable. (ocaml/dune#2364, fixes ocaml/dune#2292, @rgrinberg)

- Enable `(explicit_js_mode)` by default. (ocaml/dune#1941, @nojb)

- Add an option to clear the console in-between builds with
 `--terminal-persistence=clear-on-rebuild`

- Stop symlinking object files to main directory for stanzas defined `jbuild`
  files (ocaml/dune#2440, @rgrinberg)

- Library names are now validated in a strict fashion. Previously, invalid names
  would be allowed for unwrapped libraries (ocaml/dune#2442, @rgrinberg)

- mli only modules must now be explicitly declared. This was previously a
  warning and is now an error. (ocaml/dune#2442, @rgrinberg)

- Modules filtered out from the module list via the Ordered Set Language must
  now be actual modules. (ocaml/dune#2442, @rgrinberg)

- Actions which introduce targets where new targets are forbidden (e.g.
  preprocessing) are now an error instead of a warning. (ocaml/dune#2442, @rgrinberg)

- No longer install a `jbuilder` binary. (ocaml/dune#2441, @diml)

- Stub names are no longer allowed relative paths. This was previously a warning
  and is now an error (ocaml/dune#2443, @rgrinberg).

- Define (paths ...) fields in (context ...) definitions in order to set or
  extend any PATH-like variable in the context environment. (ocaml/dune#2426, @nojb)

- The `diff` action will always normalize newlines before diffing. Perviousy, it
  would not do this normalization for rules defined in jbuild files. (ocaml/dune#2457,
  @rgrinberg)

- Modules may no longer belong to more than one stanza. This was previously
  allowed only in stanzas defined in `jbuild` files. (ocaml/dune#2458, @rgrinberg)

- Remove support for `jbuild-ignore` files. They have been replaced by the the
  `dirs` stanza in `dune` files. (ocaml/dune#2456, @rgrinberg)

- Add a new config option `sandboxing_preference`, the cli argument `--sandbox`,
  and the dep spec `sandbox` in dune language. These let the user control the level of
  sandboxing done by dune per rule and globally. The rule specification takes precedence.
  The global configuration merely specifies the default.
  (ocaml/dune#2213, @aalekseyev, @diml)

- Remove support for old style subsystems. Dune will now emit a warning to
  reinstall the library with the old style subsystem. (ocaml/dune#2480, @rgrinberg)

- Add action (with-stdin-from <file> <action>) to redirect input from <file>
  when performing <action>. (ocaml/dune#2487, @nojb)

- Change the automatically generated odoc index to only list public modules.
  This only affects unwrapped libraries (ocaml/dune#2479, @rgrinberg)

- Set up formatting rules by default. They can be configured through a new
  `(formatting)` stanza in `dune-project` (ocaml/dune#2347, fixes ocaml/dune#2315, @emillon)

- Change default target from `@install` to `@all`. (ocaml/dune#2449, fixes ocaml/dune#1220,
  @rgrinberg)

- Include building stubs in `@check` rules. (@rgrinberg, ocaml/dune#2530)

- Get rid of ad-hoc rules for guessing the version. Dune now only
  relies on the version written in the `dune-project` file and no
  longer read `VERSION` or similar files (ocaml/dune#2541, @diml)

- In `(diff? x y)` action, require `x` to exist and register a
  dependency on that file. (ocaml/dune#2486, @aalekseyev)

- On Windows, an .exe suffix is no longer added implicitly to binary names that
  already end in .exe. Second, when resolving binary names, .opt variants are no
  longer chosen automatically. (ocaml/dune#2543, @nojb)

- Make `(diff? x y)` move the correction file (`y`) away from the build
  directory to promotion staging area. This makes corrections work with
  sandboxing and in general reduces build directory pollution. (ocaml/dune#2486,
  @aalekseyev, fixes ocaml/dune#2482)

- `c_flags`, `c_names` and `cxx_names` are now supported in `executable`
  and `executables` stanzas. (ocaml/dune#2562, @nojb)
  Note: this feature has been subsequently extended into a separate
  `foreign_stubs` field. (ocaml/dune#2659, RFC ocaml/dune#2650, @snowleopard)

- Remove git integration from `$ dune upgrade` (ocaml/dune#2565, @rgrinberg)

- Add a `--disable-promotion` to disable all modification to the source
  directory. There's also a corresponding `DUNE_DISABLE_PROMOTION` environment
  variable. (ocaml/dune#2588, fix ocaml/dune#2568, @rgrinberg)

- Add a `forbidden_libraries` field to prevent some library from being
  linked in an executable. This help detecting who accidently pulls in
  `unix` for instance (ocaml/dune#2570, @diml)

- Fix incorrect error message when a variable is expanded in static context:
  `%{lib:lib:..}` when the library does not exist. (ocaml/dune#2597, fix ocaml/dune#1541,
  @rgrinberg)

- Add `--sections` option to `$ dune install` to install subsections of .install
  files. This is useful for installing only the binaries in a workspace for
  example. (ocaml/dune#2609, fixes ocaml/dune#2554, @rgrinberg)

- Drop support for `jbuild` and `jbuild-ignore` files (ocaml/dune#2607, @diml)

- Add a `dune-action-plugin` library for describing dependencies direcly in
  the executable source. Programs that use this feature can be run by a new
  action (dynamic-run <progn> ...). (ocaml/dune#2635, @staronj, @aalekseyev)

- Stop installing the `ocaml-syntax-shims` binary. In order to use
  `future_syntax`, one now need to depend on the `ocaml-syntax-shims`
  package (ocaml/dune#2654, @diml)

- Add support for dependencies that are re-exported. Such dependencies
  are marked with`re_export` and will automatically be provided to
  users of a library (ocaml/dune#2605, @rgrinberg)

- Add a `deprecated_library_name` stanza to redirect old names after a
  library has been renamed (ocaml/dune#2528, @diml)

- Error out when a `preprocessor_deps` field is present but not
  `preprocess` field is. It is a warning with Dune 1.x projects
  (ocaml/dune#2660, @Julow)

- Dune will use `-output-complete-exe` instead of `-custom` when compiling
  self-contained bytecode executables whenever this options is available
  (OCaml version >= 4.10) (ocaml/dune#2692, @nojb)

- Add action `(with-accepted-exit-codes <pred> <action>)` to specify the set of
  successful exit codes of `<action>`. `<pred>` is specified using the predicate
  language. (ocaml/dune#2699, @nojb)

- Do not setup rules for disabled libraries (ocaml/dune#2491, fixes ocaml/dune#2272, @bobot)

- Configurator: filter out empty flags from `pkg-config` (ocaml/dune#2716, @AltGr)

- `no_keep_locs` is a no-op for projects that use `lang dune` older than 2.0. In
  projects where the language is at least `2.0`, the field is now forbidden.
  (ocaml/dune#2752, fixes ocaml/dune#2747, @rgrinberg)

- Extend support for foreign sources and archives via the `(foreign_library ...)`
  stanza as well as the `(foreign_stubs ...)` and `(foreign_archives ...)` fields.
  (ocaml/dune#2659, RFC ocaml/dune#2650, @snowleopard)

- Add (deprecated_package_names) field to (package) declaration in
  dune-project. The names declared here can be used in the (old_public_name)
  field of (deprecated_library_name) stanza. These names are interpreted as
  library names (not prefixed by a package name) and appropiate redirections are
  setup in their META files. This feaure is meant to migrate old libraries which
  do not follow Dune's convention of prefixing libraries with the package
  name. (ocaml/dune#2696, @nojb)

- The fields `license`, `authors`, `maintainers`, `source`, `bug_reports`,
  `homepage`, and `documentation` of `dune-project` can now be overriden on a
  per-package basis. (ocaml/dune#2774, @nojb)
rgrinberg added a commit to rgrinberg/opam-repository that referenced this pull request Oct 31, 2019
…lugin, dune-private-libs and dune-glob (2.0.0+draft1)

CHANGES:

- Introduce `alias` and `package` fields to the `rule` stanza. This is the
  preferred way of attaching rules to aliases. (ocaml/dune#2744, @rgrinberg)

- Add field `(optional)` for executable stanzas (ocaml/dune#2463, fixes ocaml/dune#2433, @bobot)

- Infer targets for rule stanzas expressed in long form (ocaml/dune#2494, fixes ocaml/dune#2469,
  @NathanReb)

- Indicate the progress of the initial file tree loading (ocaml/dune#2459, fixes ocaml/dune#2374,
  @bobot)

- Build `.cm[ox]` files for executables more eagerly. This speeds up builds at
  the cost of building unnecessary artifacts in some cases. Some of these extra
  artifacts can fail to built, so this is a breaking change. (ocaml/dune#2268, @rgrinberg)

- Do not put the `<package>.install` files in the source tree unless `-p` or
  `--promote-install-files` is passed on the command line (ocaml/dune#2329, @diml)

- Change `implicit_transive_deps` to be false. Implicit transitive deps now must
  be manually enabled (ocaml/dune#2306, @rgrinberg)

- Compilation units of user defined executables are now mangled by default. This
  is done to prevent the accidental collision with library dependencies of the
  executable. (ocaml/dune#2364, fixes ocaml/dune#2292, @rgrinberg)

- Enable `(explicit_js_mode)` by default. (ocaml/dune#1941, @nojb)

- Add an option to clear the console in-between builds with
 `--terminal-persistence=clear-on-rebuild`

- Stop symlinking object files to main directory for stanzas defined `jbuild`
  files (ocaml/dune#2440, @rgrinberg)

- Library names are now validated in a strict fashion. Previously, invalid names
  would be allowed for unwrapped libraries (ocaml/dune#2442, @rgrinberg)

- mli only modules must now be explicitly declared. This was previously a
  warning and is now an error. (ocaml/dune#2442, @rgrinberg)

- Modules filtered out from the module list via the Ordered Set Language must
  now be actual modules. (ocaml/dune#2442, @rgrinberg)

- Actions which introduce targets where new targets are forbidden (e.g.
  preprocessing) are now an error instead of a warning. (ocaml/dune#2442, @rgrinberg)

- No longer install a `jbuilder` binary. (ocaml/dune#2441, @diml)

- Stub names are no longer allowed relative paths. This was previously a warning
  and is now an error (ocaml/dune#2443, @rgrinberg).

- Define (paths ...) fields in (context ...) definitions in order to set or
  extend any PATH-like variable in the context environment. (ocaml/dune#2426, @nojb)

- The `diff` action will always normalize newlines before diffing. Perviousy, it
  would not do this normalization for rules defined in jbuild files. (ocaml/dune#2457,
  @rgrinberg)

- Modules may no longer belong to more than one stanza. This was previously
  allowed only in stanzas defined in `jbuild` files. (ocaml/dune#2458, @rgrinberg)

- Remove support for `jbuild-ignore` files. They have been replaced by the the
  `dirs` stanza in `dune` files. (ocaml/dune#2456, @rgrinberg)

- Add a new config option `sandboxing_preference`, the cli argument `--sandbox`,
  and the dep spec `sandbox` in dune language. These let the user control the level of
  sandboxing done by dune per rule and globally. The rule specification takes precedence.
  The global configuration merely specifies the default.
  (ocaml/dune#2213, @aalekseyev, @diml)

- Remove support for old style subsystems. Dune will now emit a warning to
  reinstall the library with the old style subsystem. (ocaml/dune#2480, @rgrinberg)

- Add action (with-stdin-from <file> <action>) to redirect input from <file>
  when performing <action>. (ocaml/dune#2487, @nojb)

- Change the automatically generated odoc index to only list public modules.
  This only affects unwrapped libraries (ocaml/dune#2479, @rgrinberg)

- Set up formatting rules by default. They can be configured through a new
  `(formatting)` stanza in `dune-project` (ocaml/dune#2347, fixes ocaml/dune#2315, @emillon)

- Change default target from `@install` to `@all`. (ocaml/dune#2449, fixes ocaml/dune#1220,
  @rgrinberg)

- Include building stubs in `@check` rules. (@rgrinberg, ocaml/dune#2530)

- Get rid of ad-hoc rules for guessing the version. Dune now only
  relies on the version written in the `dune-project` file and no
  longer read `VERSION` or similar files (ocaml/dune#2541, @diml)

- In `(diff? x y)` action, require `x` to exist and register a
  dependency on that file. (ocaml/dune#2486, @aalekseyev)

- On Windows, an .exe suffix is no longer added implicitly to binary names that
  already end in .exe. Second, when resolving binary names, .opt variants are no
  longer chosen automatically. (ocaml/dune#2543, @nojb)

- Make `(diff? x y)` move the correction file (`y`) away from the build
  directory to promotion staging area. This makes corrections work with
  sandboxing and in general reduces build directory pollution. (ocaml/dune#2486,
  @aalekseyev, fixes ocaml/dune#2482)

- `c_flags`, `c_names` and `cxx_names` are now supported in `executable`
  and `executables` stanzas. (ocaml/dune#2562, @nojb)
  Note: this feature has been subsequently extended into a separate
  `foreign_stubs` field. (ocaml/dune#2659, RFC ocaml/dune#2650, @snowleopard)

- Remove git integration from `$ dune upgrade` (ocaml/dune#2565, @rgrinberg)

- Add a `--disable-promotion` to disable all modification to the source
  directory. There's also a corresponding `DUNE_DISABLE_PROMOTION` environment
  variable. (ocaml/dune#2588, fix ocaml/dune#2568, @rgrinberg)

- Add a `forbidden_libraries` field to prevent some library from being
  linked in an executable. This help detecting who accidently pulls in
  `unix` for instance (ocaml/dune#2570, @diml)

- Fix incorrect error message when a variable is expanded in static context:
  `%{lib:lib:..}` when the library does not exist. (ocaml/dune#2597, fix ocaml/dune#1541,
  @rgrinberg)

- Add `--sections` option to `$ dune install` to install subsections of .install
  files. This is useful for installing only the binaries in a workspace for
  example. (ocaml/dune#2609, fixes ocaml/dune#2554, @rgrinberg)

- Drop support for `jbuild` and `jbuild-ignore` files (ocaml/dune#2607, @diml)

- Add a `dune-action-plugin` library for describing dependencies direcly in
  the executable source. Programs that use this feature can be run by a new
  action (dynamic-run <progn> ...). (ocaml/dune#2635, @staronj, @aalekseyev)

- Stop installing the `ocaml-syntax-shims` binary. In order to use
  `future_syntax`, one now need to depend on the `ocaml-syntax-shims`
  package (ocaml/dune#2654, @diml)

- Add support for dependencies that are re-exported. Such dependencies
  are marked with`re_export` and will automatically be provided to
  users of a library (ocaml/dune#2605, @rgrinberg)

- Add a `deprecated_library_name` stanza to redirect old names after a
  library has been renamed (ocaml/dune#2528, @diml)

- Error out when a `preprocessor_deps` field is present but not
  `preprocess` field is. It is a warning with Dune 1.x projects
  (ocaml/dune#2660, @Julow)

- Dune will use `-output-complete-exe` instead of `-custom` when compiling
  self-contained bytecode executables whenever this options is available
  (OCaml version >= 4.10) (ocaml/dune#2692, @nojb)

- Add action `(with-accepted-exit-codes <pred> <action>)` to specify the set of
  successful exit codes of `<action>`. `<pred>` is specified using the predicate
  language. (ocaml/dune#2699, @nojb)

- Do not setup rules for disabled libraries (ocaml/dune#2491, fixes ocaml/dune#2272, @bobot)

- Configurator: filter out empty flags from `pkg-config` (ocaml/dune#2716, @AltGr)

- `no_keep_locs` is a no-op for projects that use `lang dune` older than 2.0. In
  projects where the language is at least `2.0`, the field is now forbidden.
  (ocaml/dune#2752, fixes ocaml/dune#2747, @rgrinberg)

- Extend support for foreign sources and archives via the `(foreign_library ...)`
  stanza as well as the `(foreign_stubs ...)` and `(foreign_archives ...)` fields.
  (ocaml/dune#2659, RFC ocaml/dune#2650, @snowleopard)

- Add (deprecated_package_names) field to (package) declaration in
  dune-project. The names declared here can be used in the (old_public_name)
  field of (deprecated_library_name) stanza. These names are interpreted as
  library names (not prefixed by a package name) and appropiate redirections are
  setup in their META files. This feaure is meant to migrate old libraries which
  do not follow Dune's convention of prefixing libraries with the package
  name. (ocaml/dune#2696, @nojb)

- The fields `license`, `authors`, `maintainers`, `source`, `bug_reports`,
  `homepage`, and `documentation` of `dune-project` can now be overriden on a
  per-package basis. (ocaml/dune#2774, @nojb)
rgrinberg added a commit to rgrinberg/opam-repository that referenced this pull request Nov 12, 2019
…lugin, dune-private-libs and dune-glob (2.0.0+draft2)

CHANGES:

- The `action` field in the `alias` stanza is not available starting `lang dune
  2.0`. The `alias` field in the `rule` stanza is a replacement. (ocaml/dune#2846, fixes
  2681, @rgrinberg)

- Introduce `alias` and `package` fields to the `rule` stanza. This is the
  preferred way of attaching rules to aliases. (ocaml/dune#2744, @rgrinberg)

- Add field `(optional)` for executable stanzas (ocaml/dune#2463, fixes ocaml/dune#2433, @bobot)

- Infer targets for rule stanzas expressed in long form (ocaml/dune#2494, fixes ocaml/dune#2469,
  @NathanReb)

- Indicate the progress of the initial file tree loading (ocaml/dune#2459, fixes ocaml/dune#2374,
  @bobot)

- Build `.cm[ox]` files for executables more eagerly. This speeds up builds at
  the cost of building unnecessary artifacts in some cases. Some of these extra
  artifacts can fail to built, so this is a breaking change. (ocaml/dune#2268, @rgrinberg)

- Do not put the `<package>.install` files in the source tree unless `-p` or
  `--promote-install-files` is passed on the command line (ocaml/dune#2329, @diml)

- Change `implicit_transive_deps` to be false. Implicit transitive deps now must
  be manually enabled (ocaml/dune#2306, @rgrinberg)

- Compilation units of user defined executables are now mangled by default. This
  is done to prevent the accidental collision with library dependencies of the
  executable. (ocaml/dune#2364, fixes ocaml/dune#2292, @rgrinberg)

- Enable `(explicit_js_mode)` by default. (ocaml/dune#1941, @nojb)

- Add an option to clear the console in-between builds with
 `--terminal-persistence=clear-on-rebuild`

- Stop symlinking object files to main directory for stanzas defined `jbuild`
  files (ocaml/dune#2440, @rgrinberg)

- Library names are now validated in a strict fashion. Previously, invalid names
  would be allowed for unwrapped libraries (ocaml/dune#2442, @rgrinberg)

- mli only modules must now be explicitly declared. This was previously a
  warning and is now an error. (ocaml/dune#2442, @rgrinberg)

- Modules filtered out from the module list via the Ordered Set Language must
  now be actual modules. (ocaml/dune#2442, @rgrinberg)

- Actions which introduce targets where new targets are forbidden (e.g.
  preprocessing) are now an error instead of a warning. (ocaml/dune#2442, @rgrinberg)

- No longer install a `jbuilder` binary. (ocaml/dune#2441, @diml)

- Stub names are no longer allowed relative paths. This was previously a warning
  and is now an error (ocaml/dune#2443, @rgrinberg).

- Define (paths ...) fields in (context ...) definitions in order to set or
  extend any PATH-like variable in the context environment. (ocaml/dune#2426, @nojb)

- The `diff` action will always normalize newlines before diffing. Perviousy, it
  would not do this normalization for rules defined in jbuild files. (ocaml/dune#2457,
  @rgrinberg)

- Modules may no longer belong to more than one stanza. This was previously
  allowed only in stanzas defined in `jbuild` files. (ocaml/dune#2458, @rgrinberg)

- Remove support for `jbuild-ignore` files. They have been replaced by the the
  `dirs` stanza in `dune` files. (ocaml/dune#2456, @rgrinberg)

- Add a new config option `sandboxing_preference`, the cli argument `--sandbox`,
  and the dep spec `sandbox` in dune language. These let the user control the level of
  sandboxing done by dune per rule and globally. The rule specification takes precedence.
  The global configuration merely specifies the default.
  (ocaml/dune#2213, @aalekseyev, @diml)

- Remove support for old style subsystems. Dune will now emit a warning to
  reinstall the library with the old style subsystem. (ocaml/dune#2480, @rgrinberg)

- Add action (with-stdin-from <file> <action>) to redirect input from <file>
  when performing <action>. (ocaml/dune#2487, @nojb)

- Change the automatically generated odoc index to only list public modules.
  This only affects unwrapped libraries (ocaml/dune#2479, @rgrinberg)

- Set up formatting rules by default. They can be configured through a new
  `(formatting)` stanza in `dune-project` (ocaml/dune#2347, fixes ocaml/dune#2315, @emillon)

- Change default target from `@install` to `@all`. (ocaml/dune#2449, fixes ocaml/dune#1220,
  @rgrinberg)

- Include building stubs in `@check` rules. (@rgrinberg, ocaml/dune#2530)

- Get rid of ad-hoc rules for guessing the version. Dune now only
  relies on the version written in the `dune-project` file and no
  longer read `VERSION` or similar files (ocaml/dune#2541, @diml)

- In `(diff? x y)` action, require `x` to exist and register a
  dependency on that file. (ocaml/dune#2486, @aalekseyev)

- On Windows, an .exe suffix is no longer added implicitly to binary names that
  already end in .exe. Second, when resolving binary names, .opt variants are no
  longer chosen automatically. (ocaml/dune#2543, @nojb)

- Make `(diff? x y)` move the correction file (`y`) away from the build
  directory to promotion staging area. This makes corrections work with
  sandboxing and in general reduces build directory pollution. (ocaml/dune#2486,
  @aalekseyev, fixes ocaml/dune#2482)

- `c_flags`, `c_names` and `cxx_names` are now supported in `executable`
  and `executables` stanzas. (ocaml/dune#2562, @nojb)
  Note: this feature has been subsequently extended into a separate
  `foreign_stubs` field. (ocaml/dune#2659, RFC ocaml/dune#2650, @snowleopard)

- Remove git integration from `$ dune upgrade` (ocaml/dune#2565, @rgrinberg)

- Add a `--disable-promotion` to disable all modification to the source
  directory. There's also a corresponding `DUNE_DISABLE_PROMOTION` environment
  variable. (ocaml/dune#2588, fix ocaml/dune#2568, @rgrinberg)

- Add a `forbidden_libraries` field to prevent some library from being
  linked in an executable. This help detecting who accidently pulls in
  `unix` for instance (ocaml/dune#2570, @diml)

- Fix incorrect error message when a variable is expanded in static context:
  `%{lib:lib:..}` when the library does not exist. (ocaml/dune#2597, fix ocaml/dune#1541,
  @rgrinberg)

- Add `--sections` option to `$ dune install` to install subsections of .install
  files. This is useful for installing only the binaries in a workspace for
  example. (ocaml/dune#2609, fixes ocaml/dune#2554, @rgrinberg)

- Drop support for `jbuild` and `jbuild-ignore` files (ocaml/dune#2607, @diml)

- Add a `dune-action-plugin` library for describing dependencies direcly in
  the executable source. Programs that use this feature can be run by a new
  action (dynamic-run <progn> ...). (ocaml/dune#2635, @staronj, @aalekseyev)

- Stop installing the `ocaml-syntax-shims` binary. In order to use
  `future_syntax`, one now need to depend on the `ocaml-syntax-shims`
  package (ocaml/dune#2654, @diml)

- Add support for dependencies that are re-exported. Such dependencies
  are marked with`re_export` and will automatically be provided to
  users of a library (ocaml/dune#2605, @rgrinberg)

- Add a `deprecated_library_name` stanza to redirect old names after a
  library has been renamed (ocaml/dune#2528, @diml)

- Error out when a `preprocessor_deps` field is present but not
  `preprocess` field is. It is a warning with Dune 1.x projects
  (ocaml/dune#2660, @Julow)

- Dune will use `-output-complete-exe` instead of `-custom` when compiling
  self-contained bytecode executables whenever this options is available
  (OCaml version >= 4.10) (ocaml/dune#2692, @nojb)

- Add action `(with-accepted-exit-codes <pred> <action>)` to specify the set of
  successful exit codes of `<action>`. `<pred>` is specified using the predicate
  language. (ocaml/dune#2699, @nojb)

- Do not setup rules for disabled libraries (ocaml/dune#2491, fixes ocaml/dune#2272, @bobot)

- Configurator: filter out empty flags from `pkg-config` (ocaml/dune#2716, @AltGr)

- `no_keep_locs` is a no-op for projects that use `lang dune` older than 2.0. In
  projects where the language is at least `2.0`, the field is now forbidden.
  (ocaml/dune#2752, fixes ocaml/dune#2747, @rgrinberg)

- Extend support for foreign sources and archives via the `(foreign_library ...)`
  stanza as well as the `(foreign_stubs ...)` and `(foreign_archives ...)` fields.
  (ocaml/dune#2659, RFC ocaml/dune#2650, @snowleopard)

- Add (deprecated_package_names) field to (package) declaration in
  dune-project. The names declared here can be used in the (old_public_name)
  field of (deprecated_library_name) stanza. These names are interpreted as
  library names (not prefixed by a package name) and appropiate redirections are
  setup in their META files. This feaure is meant to migrate old libraries which
  do not follow Dune's convention of prefixing libraries with the package
  name. (ocaml/dune#2696, @nojb)

- The fields `license`, `authors`, `maintainers`, `source`, `bug_reports`,
  `homepage`, and `documentation` of `dune-project` can now be overriden on a
  per-package basis. (ocaml/dune#2774, @nojb)

- Change the default `modes` field of executables to `(mode exe)`. If
  one wants to build a bytecode program, it now needs to be explicitly
  requested via `(modes byte exe)`. (ocaml/dune#2851, @diml)

- Allow `ccomp_type` as a variable for evaluating `enabled_if`. (ocaml/dune#2855, @dra27,
  @rgrinberg)

- Stricter validation of file names in `select`. The file names of conditional
  sources must match the prefix and the extension of the resultant filename.
  (ocaml/dune#2867, @rgrinberg)

- Add flag `disable_dynamically_linked_foreign_archives` to the workspace file.
  If the flag is set to `true` then: (i) when installing libraries, we do not
  install dynamic foreign archives `dll*.so`; (ii) when building executables in
  the `byte` mode, we statically link in foreign archives into the runtime
  system; (iii) we do not generate any `dll*.so` rules. (ocaml/dune#2864, @snowleopard)

- Reimplement the bootstrap procedure. The new procedure is faster and
  should no longer stack overflow (ocaml/dune#2854, @dra27, @diml)
rgrinberg added a commit to rgrinberg/opam-repository that referenced this pull request Nov 20, 2019
…lugin, dune-private-libs and dune-glob (2.0.0)

CHANGES:

- Remove existing destination files in `install`  before installing the new
  ones. (ocaml/dune#2885, fixes ocaml/dune#2883, @bschommer)

- The `action` field in the `alias` stanza is not available starting `lang dune
  2.0`. The `alias` field in the `rule` stanza is a replacement. (ocaml/dune#2846, fixes
  2681, @rgrinberg)

- Introduce `alias` and `package` fields to the `rule` stanza. This is the
  preferred way of attaching rules to aliases. (ocaml/dune#2744, @rgrinberg)

- Add field `(optional)` for executable stanzas (ocaml/dune#2463, fixes ocaml/dune#2433, @bobot)

- Infer targets for rule stanzas expressed in long form (ocaml/dune#2494, fixes ocaml/dune#2469,
  @NathanReb)

- Indicate the progress of the initial file tree loading (ocaml/dune#2459, fixes ocaml/dune#2374,
  @bobot)

- Build `.cm[ox]` files for executables more eagerly. This speeds up builds at
  the cost of building unnecessary artifacts in some cases. Some of these extra
  artifacts can fail to built, so this is a breaking change. (ocaml/dune#2268, @rgrinberg)

- Do not put the `<package>.install` files in the source tree unless `-p` or
  `--promote-install-files` is passed on the command line (ocaml/dune#2329, @diml)

- Compilation units of user defined executables are now mangled by default. This
  is done to prevent the accidental collision with library dependencies of the
  executable. (ocaml/dune#2364, fixes ocaml/dune#2292, @rgrinberg)

- Enable `(explicit_js_mode)` by default. (ocaml/dune#1941, @nojb)

- Add an option to clear the console in-between builds with
 `--terminal-persistence=clear-on-rebuild`

- Stop symlinking object files to main directory for stanzas defined `jbuild`
  files (ocaml/dune#2440, @rgrinberg)

- Library names are now validated in a strict fashion. Previously, invalid names
  would be allowed for unwrapped libraries (ocaml/dune#2442, @rgrinberg)

- mli only modules must now be explicitly declared. This was previously a
  warning and is now an error. (ocaml/dune#2442, @rgrinberg)

- Modules filtered out from the module list via the Ordered Set Language must
  now be actual modules. (ocaml/dune#2442, @rgrinberg)

- Actions which introduce targets where new targets are forbidden (e.g.
  preprocessing) are now an error instead of a warning. (ocaml/dune#2442, @rgrinberg)

- No longer install a `jbuilder` binary. (ocaml/dune#2441, @diml)

- Stub names are no longer allowed relative paths. This was previously a warning
  and is now an error (ocaml/dune#2443, @rgrinberg).

- Define (paths ...) fields in (context ...) definitions in order to set or
  extend any PATH-like variable in the context environment. (ocaml/dune#2426, @nojb)

- The `diff` action will always normalize newlines before diffing. Perviousy, it
  would not do this normalization for rules defined in jbuild files. (ocaml/dune#2457,
  @rgrinberg)

- Modules may no longer belong to more than one stanza. This was previously
  allowed only in stanzas defined in `jbuild` files. (ocaml/dune#2458, @rgrinberg)

- Remove support for `jbuild-ignore` files. They have been replaced by the the
  `dirs` stanza in `dune` files. (ocaml/dune#2456, @rgrinberg)

- Add a new config option `sandboxing_preference`, the cli argument `--sandbox`,
  and the dep spec `sandbox` in dune language. These let the user control the level of
  sandboxing done by dune per rule and globally. The rule specification takes precedence.
  The global configuration merely specifies the default.
  (ocaml/dune#2213, @aalekseyev, @diml)

- Remove support for old style subsystems. Dune will now emit a warning to
  reinstall the library with the old style subsystem. (ocaml/dune#2480, @rgrinberg)

- Add action (with-stdin-from <file> <action>) to redirect input from <file>
  when performing <action>. (ocaml/dune#2487, @nojb)

- Change the automatically generated odoc index to only list public modules.
  This only affects unwrapped libraries (ocaml/dune#2479, @rgrinberg)

- Set up formatting rules by default. They can be configured through a new
  `(formatting)` stanza in `dune-project` (ocaml/dune#2347, fixes ocaml/dune#2315, @emillon)

- Change default target from `@install` to `@all`. (ocaml/dune#2449, fixes ocaml/dune#1220,
  @rgrinberg)

- Include building stubs in `@check` rules. (@rgrinberg, ocaml/dune#2530)

- Get rid of ad-hoc rules for guessing the version. Dune now only
  relies on the version written in the `dune-project` file and no
  longer read `VERSION` or similar files (ocaml/dune#2541, @diml)

- In `(diff? x y)` action, require `x` to exist and register a
  dependency on that file. (ocaml/dune#2486, @aalekseyev)

- On Windows, an .exe suffix is no longer added implicitly to binary names that
  already end in .exe. Second, when resolving binary names, .opt variants are no
  longer chosen automatically. (ocaml/dune#2543, @nojb)

- Make `(diff? x y)` move the correction file (`y`) away from the build
  directory to promotion staging area. This makes corrections work with
  sandboxing and in general reduces build directory pollution. (ocaml/dune#2486,
  @aalekseyev, fixes ocaml/dune#2482)

- `c_flags`, `c_names` and `cxx_names` are now supported in `executable`
  and `executables` stanzas. (ocaml/dune#2562, @nojb)
  Note: this feature has been subsequently extended into a separate
  `foreign_stubs` field. (ocaml/dune#2659, RFC ocaml/dune#2650, @snowleopard)

- Remove git integration from `$ dune upgrade` (ocaml/dune#2565, @rgrinberg)

- Add a `--disable-promotion` to disable all modification to the source
  directory. There's also a corresponding `DUNE_DISABLE_PROMOTION` environment
  variable. (ocaml/dune#2588, fix ocaml/dune#2568, @rgrinberg)

- Add a `forbidden_libraries` field to prevent some library from being
  linked in an executable. This help detecting who accidently pulls in
  `unix` for instance (ocaml/dune#2570, @diml)

- Fix incorrect error message when a variable is expanded in static context:
  `%{lib:lib:..}` when the library does not exist. (ocaml/dune#2597, fix ocaml/dune#1541,
  @rgrinberg)

- Add `--sections` option to `$ dune install` to install subsections of .install
  files. This is useful for installing only the binaries in a workspace for
  example. (ocaml/dune#2609, fixes ocaml/dune#2554, @rgrinberg)

- Drop support for `jbuild` and `jbuild-ignore` files (ocaml/dune#2607, @diml)

- Add a `dune-action-plugin` library for describing dependencies direcly in
  the executable source. Programs that use this feature can be run by a new
  action (dynamic-run <progn> ...). (ocaml/dune#2635, @staronj, @aalekseyev)

- Stop installing the `ocaml-syntax-shims` binary. In order to use
  `future_syntax`, one now need to depend on the `ocaml-syntax-shims`
  package (ocaml/dune#2654, @diml)

- Add support for dependencies that are re-exported. Such dependencies
  are marked with`re_export` and will automatically be provided to
  users of a library (ocaml/dune#2605, @rgrinberg)

- Add a `deprecated_library_name` stanza to redirect old names after a
  library has been renamed (ocaml/dune#2528, @diml)

- Error out when a `preprocessor_deps` field is present but not
  `preprocess` field is. It is a warning with Dune 1.x projects
  (ocaml/dune#2660, @Julow)

- Dune will use `-output-complete-exe` instead of `-custom` when compiling
  self-contained bytecode executables whenever this options is available
  (OCaml version >= 4.10) (ocaml/dune#2692, @nojb)

- Add action `(with-accepted-exit-codes <pred> <action>)` to specify the set of
  successful exit codes of `<action>`. `<pred>` is specified using the predicate
  language. (ocaml/dune#2699, @nojb)

- Do not setup rules for disabled libraries (ocaml/dune#2491, fixes ocaml/dune#2272, @bobot)

- Configurator: filter out empty flags from `pkg-config` (ocaml/dune#2716, @AltGr)

- `no_keep_locs` is a no-op for projects that use `lang dune` older than 2.0. In
  projects where the language is at least `2.0`, the field is now forbidden.
  (ocaml/dune#2752, fixes ocaml/dune#2747, @rgrinberg)

- Extend support for foreign sources and archives via the `(foreign_library ...)`
  stanza as well as the `(foreign_stubs ...)` and `(foreign_archives ...)` fields.
  (ocaml/dune#2659, RFC ocaml/dune#2650, @snowleopard)

- Add (deprecated_package_names) field to (package) declaration in
  dune-project. The names declared here can be used in the (old_public_name)
  field of (deprecated_library_name) stanza. These names are interpreted as
  library names (not prefixed by a package name) and appropiate redirections are
  setup in their META files. This feaure is meant to migrate old libraries which
  do not follow Dune's convention of prefixing libraries with the package
  name. (ocaml/dune#2696, @nojb)

- The fields `license`, `authors`, `maintainers`, `source`, `bug_reports`,
  `homepage`, and `documentation` of `dune-project` can now be overriden on a
  per-package basis. (ocaml/dune#2774, @nojb)

- Change the default `modes` field of executables to `(mode exe)`. If
  one wants to build a bytecode program, it now needs to be explicitly
  requested via `(modes byte exe)`. (ocaml/dune#2851, @diml)

- Allow `ccomp_type` as a variable for evaluating `enabled_if`. (ocaml/dune#2855, @dra27,
  @rgrinberg)

- Stricter validation of file names in `select`. The file names of conditional
  sources must match the prefix and the extension of the resultant filename.
  (ocaml/dune#2867, @rgrinberg)

- Add flag `disable_dynamically_linked_foreign_archives` to the workspace file.
  If the flag is set to `true` then: (i) when installing libraries, we do not
  install dynamic foreign archives `dll*.so`; (ii) when building executables in
  the `byte` mode, we statically link in foreign archives into the runtime
  system; (iii) we do not generate any `dll*.so` rules. (ocaml/dune#2864, @snowleopard)

- Reimplement the bootstrap procedure. The new procedure is faster and
  should no longer stack overflow (ocaml/dune#2854, @dra27, @diml)

- Allow `.opam.template` files to be generated using rules (ocaml/dune#2866, @rgrinberg)
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3 participants