Add re_exports for libraries #2605

rgrinberg · 2019-09-03T13:12:07Z

This is an attempt to implement a proper solution described by @avsm in #2595

There are some things that need to be discussed before I finish the implementation:

re_exports should only allow libraries already present in libraries.
When we write re_exports to the the dune-package files, should we just write the closure of re-exported libraries? This is simpler to implement, but perhaps it makes sense to copy what we do for requires? I'm not a fan of that as it complicates things and I don't see the benefit. What was the reason we got rid of writing the transitive closure in the requires field?

ghost · 2019-09-04T12:57:44Z

re_exports should only allow libraries already present in libraries.

That seems right

When we write re_exports to the the dune-package files, should we just write the closure of re-exported libraries? This is simpler to implement, but perhaps it makes sense to copy what we do for requires? I'm not a fan of that as it complicates things and I don't see the benefit. What was the reason we got rid of writing the transitive closure in the requires field?

We don't want to re-export the transitive dependencies though

rgrinberg · 2019-09-05T07:06:59Z

Just to clarify, this is the behavior that I expect. If a library a re-exports b and the library b re-exports c, I would expect that users of a will find both b and c visible. @diml do you agree with this behavior?

ghost · 2019-09-05T07:35:04Z

Yep, I agree with this. What I had in mind is: if c depends on d but doesn't re-export d, then users of a shouldn't see d.

rgrinberg · 2019-09-05T07:43:06Z

Okay, good. So my question was for how should we output the dune-package files for the libraries. For a re-exports b which re-exports c, we can have re_exports for a be:

Non transitive and just have (re_exports b). Dune will walk the transitive re-exports fields to get a full list of re-exports
Transitive and have the full list of re-exports. In this case it would be (re_exports b c).

I think the latter is easier to implement but we veered away from it for normal dependencies.

ghost · 2019-09-05T08:37:36Z

Putting the transitive list seems good. IIRC, for normal dependencies there was an issue when depending on non-dune libraries that were using predicates to select different dependencies. If you store the transitive dependencies then the choice is written in stone once and for all and you can't change it afterwards. In this case, it's not a concern though.

And re-exporting things should clearly be a "sticky" property.

rgrinberg · 2019-09-05T12:03:34Z

The distinction between public and private names is complicating the
implementation of this issue a bit. I'm not sure whether the predicate language
should apply to private or public names.

I see a couple of options:

As anywhere else in dune, public and private names should be interchangeable. So
the predicate language should apply to both names.
Another good option is just to allow filtering based on the names specified by
the user. So if a user uses the name bar.foo in the libraries field, it
would have to be specified as bar.foo in the re_exports field as well.

rgrinberg · 2019-09-05T15:23:33Z

After discussing this with Jeremie, the conclusion is just that it's simpler to avoid these altogether by getting rid of the predicate language in this case. We can make do with library names. I will update this PR accordingly.

rgrinberg · 2019-09-12T12:01:48Z

@diml Have a look, this should be working now. In the end, I gave up on trying to factor the closure operation. It ended up being quite complicated.

ghost · 2019-09-12T13:24:34Z

We should check that the list of re-exported libraries are also listed as dependencies.

rgrinberg · 2019-09-13T02:39:09Z

We should check that the list of re-exported libraries are also listed as dependencies.

I can add that, but now I'm doubting if a field re_exports is the right UI for this feature. Here's another related problem: Should a user be allowed to use a private name in the libraries field and then re_export using the public_name? To me that seems a bit fishy.

Here's a proposal that will solve both problems:

Rather than a re_exports field, we add an exports constructor to libraries elements. For example, (libraries foo (re_exports bar)) will add a dependency on foo and add a re-exported dependency on bar. What do you think?

ghost · 2019-09-16T07:24:30Z

That seems fine yes. It means that we can't re-export a dependency under a (select ...), but maybe that's a good thing.

rgrinberg · 2019-09-16T12:42:34Z

That seems fine yes. It means that we can't re-export a dependency under a (select ...), but maybe that's a good thing.

I think this needs explicit support from the old scheme as well. So either scheme will require more work to make selectable exports work

ghost · 2019-09-16T13:54:50Z

Yh, plus it's not even clear that it's need. In general, one dispatch between different dependencies for the implementation, not the interface. So a constructor rather than a field seems fine.

rgrinberg · 2019-09-17T11:01:31Z

I've now implemented the re_exports constructors. The set of changes that this required turned out to be much larger than I expected. Some comments why this might be the case:

The distinction between Lib_info.Deps.{Simple,Complex} doesn't seem very helpful. Simple can always be injected to Complex and it doesn't really add any type safety either.
To increase the type safety, it could perhaps be useful to parameterize Lib_info.t over the kind of requires that it contains. The idea being that there are basically 2 modes: evaluated vs. unevaluated. This property is orthogonal to local vs. external as it's a matter of whether we obtained the info from the Dune_file.Library.t (unevaluated), Lib.t (evaluated), Dune_package, (evaluated).

I also removed Dune_package.Lib.requires as it was only used in the tests.

ghost · 2019-09-17T12:16:01Z

How would you inject Simple into Complex? One reason to keep them distinct is that the interpretation of complex dependencies is much more complex and costly than simple ones, while simple ones are the most common case by far.

rgrinberg · 2019-09-17T12:45:42Z

How would you inject Simple into Complex? One reason to keep them distinct is that the interpretation of complex dependencies is much more complex and costly than simple ones, while simple ones are the most common case by far.

I would inject it with something like Complex (List.map ~f:Lib_dep.direct simple).

Also, I wasn't aware that Complex was so much more expensive than Simple. When I looked, resolve_complex_deps looked well behaved when there were no select dependencies.

ghost · 2019-09-17T12:48:19Z

Ah indeed, I was confusing with injecting direct dependencies into select ones. In that case, yes that seems fine to me.

ghost · 2019-09-17T12:49:05Z

test/blackbox-tests/test-cases/re-exported-deps/run.t

+
+Attempting to re-export dependencies outside of libraries fails:
+  $ dune build --root re-export-bad-attempt @all
+  Entering directory 're-export-bad-attempt'


Shouldn't that fail?

I guess not, because (re_export foo) will always work as long as foo works. It's interpreted as a modifier on the library name, so it's no longer possible to have mismatches like we did before.

Should the comment be updated then? The comment makes me think that the command is expected to fail

Signed-off-by: Jeremie Dimino <jeremie@dimino.org>

Signed-off-by: Rudi Grinberg <rudi.grinberg@gmail.com>

They are just a performance optimization that isn't buying us all that much Signed-off-by: Rudi Grinberg <rudi.grinberg@gmail.com>

Signed-off-by: Rudi Grinberg <rudi.grinberg@gmail.com>

Cons the accumulated library list rather than appending. Signed-off-by: Rudi Grinberg <rudi.grinberg@gmail.com>

Signed-off-by: Jeremie Dimino <jeremie@dimino.org>

Signed-off-by: Rudi Grinberg <rudi.grinberg@gmail.com>

Instead of setting it field by field, we just update everything in a single call before getting it into a dune_package ready form. Signed-off-by: Rudi Grinberg <rudi.grinberg@gmail.com>

Signed-off-by: Rudi Grinberg <rudi.grinberg@gmail.com>

@rgrinberg

…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

…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

…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

…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

…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)

@bschommer

…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)

rgrinberg requested review from nojb and a user September 3, 2019 13:12

rgrinberg requested a review from emillon as a code owner September 3, 2019 13:12

rgrinberg force-pushed the re-exports branch from ff25b3f to 2b668c5 Compare September 3, 2019 13:16

rgrinberg force-pushed the re-exports branch from 2b668c5 to 61d4184 Compare September 5, 2019 07:22

rgrinberg changed the title ~~Add re_exports for libraries~~ [WIP] Add re_exports for libraries Sep 10, 2019

rgrinberg force-pushed the re-exports branch from 7bbdfe0 to 09e38d1 Compare September 12, 2019 11:04

rgrinberg changed the title ~~[WIP] Add re_exports for libraries~~ Add re_exports for libraries Sep 12, 2019

rgrinberg force-pushed the re-exports branch from 09e38d1 to c4ac167 Compare September 12, 2019 13:40

rgrinberg force-pushed the re-exports branch 2 times, most recently from a3d43a0 to 8b81f43 Compare September 17, 2019 11:00

rgrinberg force-pushed the re-exports branch from f0e0674 to 85ffed7 Compare September 17, 2019 11:21

ghost reviewed Sep 17, 2019

View reviewed changes

jeremiedimino and others added 9 commits September 18, 2019 21:47

Update changelog

68935c1

Signed-off-by: Jeremie Dimino <jeremie@dimino.org>

Add test for re-exporting deps in executables

a1ee736

Signed-off-by: Rudi Grinberg <rudi.grinberg@gmail.com>

Remove irrelevant test

6bc0948

Signed-off-by: Rudi Grinberg <rudi.grinberg@gmail.com>

Remove "Simple" deps

7caf0ad

They are just a performance optimization that isn't buying us all that much Signed-off-by: Rudi Grinberg <rudi.grinberg@gmail.com>

Move select resolution to own function

e86c679

Signed-off-by: Rudi Grinberg <rudi.grinberg@gmail.com>

Simplify select resolutionn

804b71d

Cons the accumulated library list rather than appending. Signed-off-by: Rudi Grinberg <rudi.grinberg@gmail.com>

Decoder.file -> Decoder.filename + doc

1f47403

Signed-off-by: Jeremie Dimino <jeremie@dimino.org>

Use add_loc prepare re_exports list

91d5dee

Signed-off-by: Rudi Grinberg <rudi.grinberg@gmail.com>

Update Lib_info all at once

fb5e551

Instead of setting it field by field, we just update everything in a single call before getting it into a dune_package ready form. Signed-off-by: Rudi Grinberg <rudi.grinberg@gmail.com>

rgrinberg force-pushed the re-exports branch from 020fe63 to 8db66e8 Compare September 18, 2019 12:48

Add re_exports to requires

ee0852f

Signed-off-by: Rudi Grinberg <rudi.grinberg@gmail.com>

rgrinberg force-pushed the re-exports branch from 8db66e8 to ee0852f Compare September 18, 2019 12:49

Use let+/and+

3fb4387

Signed-off-by: Rudi Grinberg <rudi.grinberg@gmail.com>

ghost approved these changes Sep 18, 2019

View reviewed changes

rgrinberg merged commit b2d1057 into ocaml:master Sep 18, 2019

rgrinberg deleted the re-exports branch September 18, 2019 14:22

rgrinberg mentioned this pull request Oct 31, 2019

[new release] dune-build-info, dune, dune-configurator, dune-action-plugin, dune-private-libs and dune-glob (2.0.0+draft1) ocaml/opam-repository#15157

Closed

rgrinberg mentioned this pull request Oct 31, 2019

[new release] dune-build-info, dune, dune-configurator, dune-action-plugin, dune-private-libs and dune-glob (2.0.0+draft1) ocaml/opam-repository#15158

Closed

rgrinberg mentioned this pull request Nov 12, 2019

[new release] dune-build-info, dune, dune-configurator, dune-action-plugin, dune-private-libs and dune-glob (2.0.0+draft2) ocaml/opam-repository#15261

Closed

rgrinberg mentioned this pull request Nov 20, 2019

[new release] dune-build-info, dune, dune-configurator, dune-action-plugin, dune-private-libs and dune-glob (2.0.0) ocaml/opam-repository#15334

Merged

Zimmi48 mentioned this pull request Nov 25, 2019

ocamlPackages.lwt_ppx: fix dependency propagation NixOS/nixpkgs#73401

Merged

10 tasks

This was referenced Jul 28, 2020

re_export is not documented #3657

Closed

dune implicit_transitive_deps false leads to confusing errors ocsigen/tyxml#274

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nojb mentioned this pull request Aug 6, 2024

Add a -H flag, second attempt ocaml/ocaml#12246

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Add re_exports for libraries #2605

Add re_exports for libraries #2605

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Add re_exports for libraries #2605

Add re_exports for libraries #2605

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