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gpu-dawn: use source scanning for abseil-cpp target

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Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
This commit is contained in:
Stephen Gutekanst 2022-02-13 01:05:19 -07:00 • committed by Stephen Gutekanst
parent 3ba2436192
commit ce9608897b
2 changed files with 83 additions and 121 deletions
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90
gpu-dawn/build.zig
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@ -1053,13 +1053,40 @@ fn buildLibAbseilCpp(b: *Builder, step: *std.build.LibExeObjStep, options: Optio
}) catch unreachable;
// absl
lib.addCSourceFiles(&.{
thisDir() ++ "/src/dawn/sources/abseil.cc",
thisDir() ++ "/libs/dawn/third_party/abseil-cpp/absl/strings/numbers.cc",
thisDir() ++ "/libs/dawn/third_party/abseil-cpp/absl/time/internal/cctz/src/time_zone_posix.cc",
thisDir() ++ "/libs/dawn/third_party/abseil-cpp/absl/time/format.cc",
thisDir() ++ "/libs/dawn/third_party/abseil-cpp/absl/random/internal/randen_hwaes.cc",
}, flags.items);
const source_dirs = &[_][]const u8{
"third_party/abseil-cpp/absl/strings/",
"third_party/abseil-cpp/absl/strings/internal/",
"third_party/abseil-cpp/absl/strings/internal/str_format/",
"third_party/abseil-cpp/absl/types/",
"third_party/abseil-cpp/absl/flags/internal/",
"third_party/abseil-cpp/absl/flags/",
"third_party/abseil-cpp/absl/synchronization/",
"third_party/abseil-cpp/absl/synchronization/internal/",
"third_party/abseil-cpp/absl/hash/internal/",
"third_party/abseil-cpp/absl/debugging/",
"third_party/abseil-cpp/absl/debugging/internal/",
"third_party/abseil-cpp/absl/status/",
"third_party/abseil-cpp/absl/time/internal/cctz/src/",
"third_party/abseil-cpp/absl/time/",
"third_party/abseil-cpp/absl/container/internal/",
"third_party/abseil-cpp/absl/numeric/",
"third_party/abseil-cpp/absl/random/",
"third_party/abseil-cpp/absl/random/internal/",
"third_party/abseil-cpp/absl/base/internal/",
"third_party/abseil-cpp/absl/base/",
};
var sources = std.ArrayList([]const u8).init(b.allocator);
inline for (source_dirs) |dir| {
scanSources(
b,
&sources,
"libs/dawn/" ++ dir,
&.{".cpp", ".c", ".cc"},
&.{},
&.{"_test", "_testing", "benchmark"},
) catch unreachable;
}
lib.addCSourceFiles(sources.items, flags.items);
return lib;
}
@ -1166,3 +1193,52 @@ fn include(comptime rel: []const u8) []const u8 {
fn thisDir() []const u8 {
return std.fs.path.dirname(@src().file) orelse ".";
}
/// Scans rel_dir for sources ending with one of the provided extensions, excluding relative paths
/// listed in the excluded list.
/// Results are appended to the dst ArrayList.
fn scanSources(
b: *Builder,
dst: *std.ArrayList([]const u8),
comptime rel_dir: []const u8,
extensions: []const []const u8,
excluding: []const []const u8,
excluding_contains: []const []const u8,
) !void {
const abs_dir = thisDir() ++ "/" ++ rel_dir;
var dir = try std.fs.openDirAbsolute(abs_dir, .{ .iterate = true });
defer dir.close();
var dir_it = dir.iterate();
while (try dir_it.next()) |entry| {
if (entry.kind != .File) continue;
var abs_path = try std.fs.path.join(b.allocator, &.{ abs_dir, entry.name });
abs_path = try std.fs.realpathAlloc(b.allocator, abs_path);
const allowed_extension = blk: {
const ours = std.fs.path.extension(entry.name);
for (extensions) |ext| {
if (std.mem.eql(u8, ours, ext)) break :blk true;
}
break :blk false;
};
if (!allowed_extension) continue;
const excluded = blk: {
for (excluding) |excluded| {
if (std.mem.eql(u8, entry.name, excluded)) break :blk true;
}
break :blk false;
};
if (excluded) continue;
const excluded_contains = blk: {
for (excluding_contains) |contains| {
if (std.mem.containsAtLeast(u8, entry.name, 1, contains)) break :blk true;
}
break :blk false;
};
if (excluded_contains) continue;
try dst.append(abs_path);
}
}