This commit amends `std.Build.ExecutableOptions` etc to have a new
field, `root_module`, which allows artifacts to be created whose root
module is an existing `*Module` rather than a freshly constructed one.
This API can be far more versatile, allowing construction of complex
module graphs before creating any compile steps, and therefore also
allowing easy reuse of modules.
The fields which correspond to module options, such as
`root_source_file`, are all considered deprecated. They may not be
populated at the same time as the `root_module` field. In the next
release cycle, these deprecated fields will be removed, and the
`root_module` field made non-optional.
A compilation build step for which the binary is not required could not
be compiled previously. There were 2 issues that caused this:
- The compiler communicated only the results of the emitted binary and
did not properly communicate the result if the binary was not emitted.
This is fixed by communicating the final hash of the artifact path (the
hash of the corresponding /o/<hash> directory) and communicating this
instead of the entire path. This changes the zig build --listen protocol
to communicate hashes instead of paths, and emit_bin_path is accordingly
renamed to emit_digest.
- There was an error related to the default llvm object path when
CacheUse.Whole was selected. I'm not really sure why this didn't manifest
when the binary is also emitted.
This was fixed by improving the path handling related to flush() and
emitLlvmObject().
In general, this commit also improves some of the path handling throughout
the compiler and standard library.
Changes the `make` function signature to take an options struct, which
additionally includes `watch: bool`. I intentionally am not exposing
this information to configure phase logic.
Also adds global zig cache to the compiler cache prefixes.
Closes#20600
This allows running commands that take an output directory argument. The
main thing that was needed for this feature was generated file subpaths,
to allow access to the files in a generated directory. Additionally, a
minor change was required to so that the correct directory is created
for output directory args.
* `doc/langref` formatting
* upgrade `.{ .path = "..." }` to `b.path("...")`
* avoid using arguments named `self`
* make `Build.Step.Id` usage more consistent
* add `Build.pathResolve`
* use `pathJoin` and `pathResolve` everywhere
* make sure `Build.LazyPath.getPath2` returns an absolute path
This also makes a long-overdue change of extracting common state from
Build into a shared Graph object.
Getting the semantics right for these flags turned out to be quite
tricky. In the end it works like this:
* The override only happens when the target is fully native, with no
additional query parameters, such as versions or CPU features added.
* The override affects the resolved Target but leaves the original Query
unmodified.
* The "is native?" detection logic operates on the original, unmodified
query. This makes it possible to provide invalid host target
information, causing confusing errors to occur. Don't do that.
There are some minor breaking changes to std.Build API such as the fact
that `b.zig_exe` is now moved to `b.graph.zig_exe`, as well as a handful
of other similar flags.
Introduce the concept of "target query" and "resolved target". A target
query is what the user specifies, with some things left to default. A
resolved target has the default things discovered and populated.
In the future, std.zig.CrossTarget will be rename to std.Target.Query.
Introduces `std.Build.resolveTargetQuery` to get from one to the other.
The concept of `main_mod_path` is gone, no longer supported. You have to
put the root source file at the module root now.
* remove deprecated API
* update build.zig for the breaking API changes in this branch
* move std.Build.Step.Compile.BuildId to std.zig.BuildId
* add more options to std.Build.ExecutableOptions, std.Build.ObjectOptions,
std.Build.SharedLibraryOptions, std.Build.StaticLibraryOptions, and
std.Build.TestOptions.
* remove `std.Build.constructCMacro`. There is no use for this API.
* deprecate `std.Build.Step.Compile.defineCMacro`. Instead,
`std.Build.Module.addCMacro` is provided.
- remove `std.Build.Step.Compile.defineCMacroRaw`.
* deprecate `std.Build.Step.Compile.linkFrameworkNeeded`
- use `std.Build.Module.linkFramework`
* deprecate `std.Build.Step.Compile.linkFrameworkWeak`
- use `std.Build.Module.linkFramework`
* move more logic into `std.Build.Module`
* allow `target` and `optimize` to be `null` when creating a Module.
Along with other fields, those unspecified options will be inherited
from parent `Module` when inserted into an import table.
* the `target` field of `addExecutable` is now required. pass `b.host`
to get the host target.
Specifically this is to make sure llvm data layout generation doesn't
regress. The no emit bin is to allow testing targets that can't
currently be linked. The commented out targets are ones that fail in
the linker anyway when no emit bin is passed.
