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std › Build › dependencyFromBuildZig

dependencyFromBuildZig

Function parameters

Parameters

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b:*Build
build_zig:type
The build.zig struct of the dependency, normally obtained by `@import` of the dependency.
args:anytype

Type definitions in this namespace

Types

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Graph
Shared state among all Build instances.
GeneratedFile
A file that is generated by a build step.
LazyPath
A reference to an existing or future path.
ResolvedTarget
A pair of target query and fully resolved target.

Functions in this namespace

Functions

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resolveInstallPrefix
This function is intended to be called by lib/build_runner.zig, not a build.zig file.
addOptions
Create a set of key-value pairs that can be converted into a Zig source
addTest
Creates an executable containing unit tests.
addModule
This function creates a module and adds it to the package's module set, making
createModule
This function creates a private module, to be used by the current package,
addSystemCommand
Initializes a `Step.Run` with argv, which must at least have the path to the
addRunArtifact
Creates a `Step.Run` with an executable built with `addExecutable`.
addConfigHeader
Using the `values` provided, produces a C header file, possibly based on a
dupe
Allocator.dupe without the need to handle out of memory.
dupeStrings
Duplicates an array of strings without the need to handle out of memory.
dupePath
Duplicates a path and converts all slashes to the OS's canonical path separator.
option
Creates a configuration option to be passed to the build.zig script.
standardTargetOptions
Exposes standard `zig build` options for choosing a target and additionally
parseTargetQuery
Obtain a target query from a string, reporting diagnostics to stderr if the
standardTargetOptionsQueryOnly
Exposes standard `zig build` options for choosing a target.
installArtifact
This creates the install step and adds it to the dependencies of the
addInstallArtifact
This merely creates the step; it does not add it to the dependencies of the
installFile
`dest_rel_path` is relative to prefix path
installBinFile
`dest_rel_path` is relative to bin path
installLibFile
`dest_rel_path` is relative to lib path
addInstallFile
`dest_rel_path` is relative to install prefix path
addInstallBinFile
`dest_rel_path` is relative to bin path
addInstallLibFile
`dest_rel_path` is relative to lib path
addInstallHeaderFile
`dest_rel_path` is relative to header path
path
References a file or directory relative to the source root.
pathFromRoot
This is low-level implementation details of the build system, not meant to
run
This is a helper function to be called from build.zig scripts, *not* from
lazyDependency
When this function is called, it means that the current build does, in
lazyImport
In a build.zig file, this function is to `@import` what `lazyDependency` is to `dependency`.
dumpBadGetPathHelp
In this function the stderr mutex has already been locked.
makeTempPath
This function is intended to be called in the `configure` phase only.
resolveTargetQuery
Converts a target query into a fully resolved target that can be passed to

Error sets in this namespace

Error Sets

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Source

Implementation

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pub fn dependencyFromBuildZig(
    b: *Build,
    /// The build.zig struct of the dependency, normally obtained by `@import` of the dependency.
    /// If called from the build.zig file itself, use `@This` to obtain a reference to the struct.
    comptime build_zig: type,
    args: anytype,
) *Dependency {
    const build_runner = @import("root");
    const deps = build_runner.dependencies;

    find_dep: {
        const pkg, const pkg_hash = inline for (@typeInfo(deps.packages).@"struct".decls) |decl| {
            const pkg_hash = decl.name;
            const pkg = @field(deps.packages, pkg_hash);
            if (@hasDecl(pkg, "build_zig") and pkg.build_zig == build_zig) break .{ pkg, pkg_hash };
        } else break :find_dep;
        const dep_name = for (b.available_deps) |dep| {
            if (mem.eql(u8, dep[1], pkg_hash)) break dep[1];
        } else break :find_dep;
        return dependencyInner(b, dep_name, pkg.build_root, pkg.build_zig, pkg_hash, pkg.deps, args);
    }

    const full_path = b.pathFromRoot("build.zig.zon");
    debug.panic("'{}' is not a build.zig struct of a dependency in '{s}'", .{ build_zig, full_path });
}