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deduplicate packages in the build runner

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Lee Cannon 2023-06-05 21:50:01 +01:00
parent 767343c926
commit 74cfaade37
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GPG Key ID: 983D5E5CC5E1401F
1 changed files with 54 additions and 12 deletions
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66
src/special/build_runner.zig
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@ -119,8 +119,8 @@ pub fn main() !void {
builder.resolveInstallPrefix(null, Build.DirList{});
try runBuild(builder);
var packages = std.ArrayListUnmanaged(BuildConfig.Pkg){};
defer packages.deinit(allocator);
var packages = Packages{ .allocator = allocator };
defer packages.deinit();
var include_dirs: std.StringArrayHashMapUnmanaged(void) = .{};
defer include_dirs.deinit(allocator);
@ -142,9 +142,12 @@ pub fn main() !void {
}
}
const package_list = try packages.toPackageList();
defer allocator.free(package_list);
try std.json.stringify(
BuildConfig{
.packages = packages.items,
.packages = package_list,
.include_dirs = include_dirs.keys(),
},
.{ .whitespace = .{} },
@ -169,9 +172,50 @@ fn reifyOptions(step: *Build.Step) anyerror!void {
}
}
const Packages = struct {
allocator: std.mem.Allocator,
/// Outer key is the package name, inner key is the file path.
packages: std.StringArrayHashMapUnmanaged(std.StringArrayHashMapUnmanaged(void)) = .{},
/// Returns true if the package was already present.
pub fn addPackage(self: *Packages, name: []const u8, path: []const u8) !bool {
const name_gop_result = try self.packages.getOrPut(self.allocator, name);
if (!name_gop_result.found_existing) {
name_gop_result.value_ptr.* = .{};
}
const path_gop_result = try name_gop_result.value_ptr.getOrPut(self.allocator, path);
return path_gop_result.found_existing;
}
pub fn toPackageList(self: *Packages) ![]BuildConfig.Pkg {
var result: std.ArrayListUnmanaged(BuildConfig.Pkg) = .{};
errdefer result.deinit(self.allocator);
var name_iter = self.packages.iterator();
while (name_iter.next()) |path_hashmap| {
var path_iter = path_hashmap.value_ptr.iterator();
while (path_iter.next()) |path| {
try result.append(self.allocator, .{ .name = path_hashmap.key_ptr.*, .path = path.key_ptr.* });
}
}
return try result.toOwnedSlice(self.allocator);
}
pub fn deinit(self: *Packages) void {
var outer_iter = self.packages.iterator();
while (outer_iter.next()) |inner| {
inner.value_ptr.deinit(self.allocator);
}
self.packages.deinit(self.allocator);
}
};
fn processStep(
allocator: std.mem.Allocator,
packages: *std.ArrayListUnmanaged(BuildConfig.Pkg),
packages: *Packages,
include_dirs: *std.StringArrayHashMapUnmanaged(void),
step: *Build.Step,
) anyerror!void {
@ -181,7 +225,7 @@ fn processStep(
.path => |path| path,
.generated => |generated| generated.path,
};
if (maybe_path) |path| try packages.append(allocator, .{ .name = "root", .path = path });
if (maybe_path) |path| _ = try packages.addPackage("root", path);
}
try processIncludeDirs(allocator, include_dirs, install_exe.artifact.include_dirs.items);
@ -197,7 +241,7 @@ fn processStep(
.path => |path| path,
.generated => |generated| generated.path,
};
if (maybe_path) |path| try packages.append(allocator, .{ .name = "root", .path = path });
if (maybe_path) |path| _ = try packages.addPackage("root", path);
}
try processIncludeDirs(allocator, include_dirs, exe.include_dirs.items);
try processPkgConfig(allocator, include_dirs, exe);
@ -215,13 +259,9 @@ fn processStep(
fn processModule(
allocator: std.mem.Allocator,
packages: *std.ArrayListUnmanaged(BuildConfig.Pkg),
packages: *Packages,
module: std.StringArrayHashMap(*Build.Module).Entry,
) !void {
for (packages.items) |package| {
if (std.mem.eql(u8, package.name, module.key_ptr.*)) return;
}
const builder = module.value_ptr.*.builder;
const maybe_path = switch (module.value_ptr.*.source_file) {
@ -230,7 +270,9 @@ fn processModule(
};
if (maybe_path) |path| {
try packages.append(allocator, .{ .name = module.key_ptr.*, .path = builder.pathFromRoot(path) });
const already_added = try packages.addPackage(module.key_ptr.*, builder.pathFromRoot(path));
// if the package has already been added short circuit here or recursive modules will ruin us
if (already_added) return;
}
var deps_it = module.value_ptr.*.dependencies.iterator();