I want to embed the git version into my program. What I tried to do is: const get_command_output = b.addSystemCommand(&.{ "git", "rev-parse", "--short", "HEAD" }); const git_version = get_command_output.captureStdOut(); options.addOption([]const u8, "git_version", git_version); but I g…

We do std.mem.trimRight(u8, b.run(&.{ "git", "rev-parse", "--verify", "HEAD" }), "\n") which means git rev-parse is run on every configure, which is not great in theory, but ok in practice. The neat way to do this is to depend on ./git/logs/HEAD: Tech Notes: Embedding the current revisio…

build-system

npc1054657282 July 28, 2025, 6:02pm 4

Print output from external tools when bulding Help

Zig does not run the command or any other steps during build; it is actually a configure phase. captureStdOut returns a generated file specification and not the actual output. You can save the contents of captureStdOut as a file; search for captureStdOut in Zig Build System for an example that saves the command output to a file. I think a better way is to add a check in the system command using expectStdOutEqual. shader_compilation.expectStdOutEqual(""); If the resulted output is not em…

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External program output into build