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build.zig: Support rc build descriptions

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Signed-off-by: AnErrupTion <anerruption@disroot.org>
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AnErrupTion 2026-08-24 15:29:17 +02:00
commit f17ccf9ea7
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37
build.zig
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@ -214,6 +214,20 @@ fn getVersionStr(b: *std.Build, name: []const u8, version: std.SemanticVersion)
}
return version_str;
},
1 => {
// Release candidate build (e.g. v1.5.0-rc1)
var it = std.mem.splitScalar(u8, git_describe, '-');
const tagged_ancestor = std.mem.trimStart(u8, it.first(), "v");
const ancestor_ver = try std.SemanticVersion.parse(tagged_ancestor);
if (version.order(ancestor_ver) != .gt) {
std.debug.print("{s} version '{f}' must be greater than tagged ancestor '{f}'\n", .{ name, version, ancestor_ver });
std.process.exit(1);
}
// The version is reformatted in accordance with the https://semver.org specification.
return version_str;
},
2 => {
// Untagged development build (e.g. 0.10.0-dev.2025+ecf0050a9).
var it = std.mem.splitScalar(u8, git_describe, '-');
@ -236,6 +250,29 @@ fn getVersionStr(b: *std.Build, name: []const u8, version: std.SemanticVersion)
// The version is reformatted in accordance with the https://semver.org specification.
return b.fmt("{s}-dev.{s}+{s}", .{ version_str, commit_height, commit_id[1..] });
},
3 => {
// Untagged development build (e.g. 0.10.0-dev.2025+ecf0050a9).
var it = std.mem.splitScalar(u8, git_describe, '-');
const tagged_ancestor = std.mem.trimStart(u8, it.first(), "v");
_ = it.next().?;
const commit_height = it.next().?;
const commit_id = it.next().?;
const ancestor_ver = try std.SemanticVersion.parse(tagged_ancestor);
if (version.order(ancestor_ver) != .gt) {
std.debug.print("{s} version '{f}' must be greater than tagged ancestor '{f}'\n", .{ name, version, ancestor_ver });
std.process.exit(1);
}
// Check that the commit hash is prefixed with a 'g' (a Git convention).
if (commit_id.len < 1 or commit_id[0] != 'g') {
std.debug.print("Unexpected `git describe` output: {s}\n", .{git_describe});
return version_str;
}
// The version is reformatted in accordance with the https://semver.org specification.
return b.fmt("{s}-dev.{s}+{s}", .{ version_str, commit_height, commit_id[1..] });
},
else => {
std.debug.print("Unexpected `git describe` output: {s}\n", .{git_describe});
return version_str;