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std.Build.CheckFileStep: add a way to expect exact

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This is done in a bit of a haphazard way. Eventually the API needs to
break in favor of a "checks" system similar to how RunStep works.
This commit is contained in:
Andrew Kelley 2023-03-09 18:10:21 -07:00
parent 3b00e341fd
commit 3186658e60
1 changed files with 31 additions and 10 deletions
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41
lib/std/Build/CheckFileStep.zig
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@ -1,19 +1,19 @@
const std = @import("../std.zig");
const Step = std.Build.Step;
const fs = std.fs;
const mem = std.mem;
const CheckFileStep = @This();
pub const base_id = .check_file;
//! Fail the build step if a file does not match certain checks.
//! TODO: make this more flexible, supporting more kinds of checks.
//! TODO: generalize the code in std.testing.expectEqualStrings and make this
//! CheckFileStep produce those helpful diagnostics when there is not a match.
step: Step,
expected_matches: []const []const u8,
expected_exact: ?[]const u8,
source: std.Build.FileSource,
max_bytes: usize = 20 * 1024 * 1024,
pub const base_id = .check_file;
pub const Options = struct {
expected_matches: []const []const u8,
expected_matches: []const []const u8 = &.{},
expected_exact: ?[]const u8 = null,
};
pub fn create(
@ -31,6 +31,7 @@ pub fn create(
}),
.source = source.dupe(owner),
.expected_matches = owner.dupeStrings(options.expected_matches),
.expected_exact = options.expected_exact,
};
self.source.addStepDependencies(&self.step);
return self;
@ -60,8 +61,28 @@ fn make(step: *Step, prog_node: *std.Progress.Node) !void {
\\{s}
\\========= but file does not contain it: =======
\\{s}
\\
\\===============================================
, .{ expected_match, contents });
}
}
if (self.expected_exact) |expected_exact| {
if (!mem.eql(u8, expected_exact, contents)) {
return step.fail(
\\
\\========= expected: =====================
\\{s}
\\========= but found: ====================
\\{s}
\\========= from the following file: ======
\\{s}
, .{ expected_exact, contents, src_path });
}
}
}
const CheckFileStep = @This();
const std = @import("../std.zig");
const Step = std.Build.Step;
const fs = std.fs;
const mem = std.mem;