1 files changed, 60 insertions, 0 deletions
diff --git a/crates/typst-cli/build.rs b/crates/typst-cli/build.rs
new file mode 100644
index 00000000..86325e1d
--- /dev/null
+++ b/crates/typst-cli/build.rs
@@ -0,0 +1,60 @@
+use std::env;
+use std::fs::{create_dir_all, File};
+use std::path::Path;
+use std::process::Command;
+
+use clap::{CommandFactory, ValueEnum};
+use clap_complete::{generate_to, Shell};
+use clap_mangen::Man;
+
+#[path = "src/args.rs"]
+#[allow(dead_code)]
+mod args;
+
+fn main() {
+    println!("cargo:rerun-if-env-changed=TYPST_VERSION");
+    println!("cargo:rerun-if-env-changed=GEN_ARTIFACTS");
+
+    if option_env!("TYPST_VERSION").is_none() {
+        println!("cargo:rustc-env=TYPST_VERSION={}", typst_version());
+    }
+
+    if let Some(dir) = env::var_os("GEN_ARTIFACTS") {
+        let out = &Path::new(&dir);
+        create_dir_all(out).unwrap();
+        let cmd = &mut args::CliArguments::command();
+
+        Man::new(cmd.clone())
+            .render(&mut File::create(out.join("typst.1")).unwrap())
+            .unwrap();
+
+        for subcmd in cmd.get_subcommands() {
+            let name = format!("typst-{}", subcmd.get_name());
+            Man::new(subcmd.clone().name(&name))
+                .render(&mut File::create(out.join(format!("{name}.1"))).unwrap())
+                .unwrap();
+        }
+
+        for shell in Shell::value_variants() {
+            generate_to(*shell, cmd, "typst", out).unwrap();
+        }
+    }
+}
+
+/// Also used by `args.rs`.
+fn typst_version() -> String {
+    if let Some(version) = option_env!("TYPST_VERSION") {
+        return version.to_owned();
+    }
+
+    let pkg = env!("CARGO_PKG_VERSION");
+    let hash = Command::new("git")
+        .args(["rev-parse", "HEAD"])
+        .output()
+        .ok()
+        .filter(|output| output.status.success())
+        .and_then(|output| String::from_utf8(output.stdout.get(..8)?.into()).ok())
+        .unwrap_or_else(|| "unknown hash".into());
+
+    format!("{pkg} ({hash})")
+}