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const std = @import("std");
const Step = std.Build.Step;
const InstallDir = std.Build.InstallDir;
const InstallArtifact = @This();
const fs = std.fs;
const LazyPath = std.Build.LazyPath;
step: Step,
dest_dir: ?InstallDir,
dest_sub_path: []const u8,
emitted_bin: ?LazyPath,
implib_dir: ?InstallDir,
emitted_implib: ?LazyPath,
pdb_dir: ?InstallDir,
emitted_pdb: ?LazyPath,
h_dir: ?InstallDir,
emitted_h: ?LazyPath,
dylib_symlinks: ?DylibSymlinkInfo,
artifact: *Step.Compile,
const DylibSymlinkInfo = struct {
major_only_filename: []const u8,
name_only_filename: []const u8,
};
pub const base_id: Step.Id = .install_artifact;
pub const Options = struct {
/// Which installation directory to put the main output file into.
dest_dir: Dir = .default,
pdb_dir: Dir = .default,
h_dir: Dir = .default,
implib_dir: Dir = .default,
/// Whether to install symlinks along with dynamic libraries.
dylib_symlinks: ?bool = null,
/// If non-null, adds additional path components relative to bin dir, and
/// overrides the basename of the Compile step for installation purposes.
dest_sub_path: ?[]const u8 = null,
pub const Dir = union(enum) {
disabled,
default,
override: InstallDir,
};
};
pub fn create(owner: *std.Build, artifact: *Step.Compile, options: Options) *InstallArtifact {
const install_artifact = owner.allocator.create(InstallArtifact) catch @panic("OOM");
const dest_dir: ?InstallDir = switch (options.dest_dir) {
.disabled => null,
.default => switch (artifact.kind) {
.obj, .test_obj => @panic("object files have no standard installation procedure"),
.exe, .@"test" => .bin,
.lib => if (artifact.isDll()) .bin else .lib,
},
.override => |o| o,
};
install_artifact.* = .{
.step = Step.init(.{
.id = base_id,
.name = owner.fmt("install {s}", .{artifact.name}),
.owner = owner,
.makeFn = make,
}),
.dest_dir = dest_dir,
.pdb_dir = switch (options.pdb_dir) {
.disabled => null,
.default => if (artifact.producesPdbFile()) dest_dir else null,
.override => |o| o,
},
.h_dir = switch (options.h_dir) {
.disabled => null,
.default => if (artifact.kind == .lib) .header else null,
.override => |o| o,
},
.implib_dir = switch (options.implib_dir) {
.disabled => null,
.default => if (artifact.producesImplib()) .lib else null,
.override => |o| o,
},
.dylib_symlinks = if (options.dylib_symlinks orelse (dest_dir != null and
artifact.isDynamicLibrary() and
artifact.version != null and
std.Build.wantSharedLibSymLinks(artifact.rootModuleTarget()))) .{
.major_only_filename = artifact.major_only_filename.?,
.name_only_filename = artifact.name_only_filename.?,
} else null,
.dest_sub_path = options.dest_sub_path orelse artifact.out_filename,
.emitted_bin = null,
.emitted_pdb = null,
.emitted_h = null,
.emitted_implib = null,
.artifact = artifact,
};
install_artifact.step.dependOn(&artifact.step);
if (install_artifact.dest_dir != null) install_artifact.emitted_bin = artifact.getEmittedBin();
if (install_artifact.pdb_dir != null) install_artifact.emitted_pdb = artifact.getEmittedPdb();
// https://github.com/ziglang/zig/issues/9698
//if (install_artifact.h_dir != null) install_artifact.emitted_h = artifact.getEmittedH();
if (install_artifact.implib_dir != null) install_artifact.emitted_implib = artifact.getEmittedImplib();
return install_artifact;
}
fn make(step: *Step, options: Step.MakeOptions) !void {
_ = options;
const install_artifact: *InstallArtifact = @fieldParentPtr("step", step);
const b = step.owner;
var all_cached = true;
if (install_artifact.dest_dir) |dest_dir| {
const full_dest_path = b.getInstallPath(dest_dir, install_artifact.dest_sub_path);
const p = try step.installFile(install_artifact.emitted_bin.?, full_dest_path);
all_cached = all_cached and p == .fresh;
if (install_artifact.dylib_symlinks) |dls| {
try Step.Compile.doAtomicSymLinks(step, full_dest_path, dls.major_only_filename, dls.name_only_filename);
}
install_artifact.artifact.installed_path = full_dest_path;
}
if (install_artifact.implib_dir) |implib_dir| {
const full_implib_path = b.getInstallPath(implib_dir, install_artifact.emitted_implib.?.basename(b, step));
const p = try step.installFile(install_artifact.emitted_implib.?, full_implib_path);
all_cached = all_cached and p == .fresh;
}
if (install_artifact.pdb_dir) |pdb_dir| {
const full_pdb_path = b.getInstallPath(pdb_dir, install_artifact.emitted_pdb.?.basename(b, step));
const p = try step.installFile(install_artifact.emitted_pdb.?, full_pdb_path);
all_cached = all_cached and p == .fresh;
}
if (install_artifact.h_dir) |h_dir| {
if (install_artifact.emitted_h) |emitted_h| {
const full_h_path = b.getInstallPath(h_dir, emitted_h.basename(b, step));
const p = try step.installFile(emitted_h, full_h_path);
all_cached = all_cached and p == .fresh;
}
for (install_artifact.artifact.installed_headers.items) |installation| switch (installation) {
.file => |file| {
const full_h_path = b.getInstallPath(h_dir, file.dest_rel_path);
const p = try step.installFile(file.source, full_h_path);
all_cached = all_cached and p == .fresh;
},
.directory => |dir| {
const src_dir_path = dir.source.getPath3(b, step);
const full_h_prefix = b.getInstallPath(h_dir, dir.dest_rel_path);
var src_dir = src_dir_path.root_dir.handle.openDir(src_dir_path.subPathOrDot(), .{ .iterate = true }) catch |err| {
return step.fail("unable to open source directory '{}': {s}", .{
src_dir_path, @errorName(err),
});
};
defer src_dir.close();
var it = try src_dir.walk(b.allocator);
next_entry: while (try it.next()) |entry| {
for (dir.options.exclude_extensions) |ext| {
if (std.mem.endsWith(u8, entry.path, ext)) continue :next_entry;
}
if (dir.options.include_extensions) |incs| {
for (incs) |inc| {
if (std.mem.endsWith(u8, entry.path, inc)) break;
} else {
continue :next_entry;
}
}
const full_dest_path = b.pathJoin(&.{ full_h_prefix, entry.path });
switch (entry.kind) {
.directory => {
try Step.handleVerbose(b, null, &.{ "install", "-d", full_dest_path });
const p = try step.installDir(full_dest_path);
all_cached = all_cached and p == .existed;
},
.file => {
const p = try step.installFile(try dir.source.join(b.allocator, entry.path), full_dest_path);
all_cached = all_cached and p == .fresh;
},
else => continue,
}
}
},
};
}
step.result_cached = all_cached;
}
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