Handle SIGPIPE (#5444)

Cargo.lock

@@ -2245,6 +2245,15 @@ version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
 
+[[package]]
+name = "sigpipe"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5584bfb3e0d348139d8210285e39f6d2f8a1902ac06de343e06357d1d763d8e6"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "simd-adler32"
 version = "0.3.7"
@@ -2705,6 +2714,7 @@ dependencies = [
  "serde_json",
  "serde_yaml 0.9.34+deprecated",
  "shell-escape",
+ "sigpipe",
  "tar",
  "tempfile",
  "toml",

Cargo.toml

@@ -104,6 +104,7 @@ serde = { version = "1.0.184", features = ["derive"] }
 serde_json = "1"
 serde_yaml = "0.9"
 shell-escape = "0.1.5"
+sigpipe = "0.1"
 siphasher = "1"
 smallvec = { version = "1.11.1", features = ["union", "const_generics", "const_new"] }
 stacker = "0.1.15"

crates/typst-cli/Cargo.toml

@@ -46,6 +46,7 @@ serde = { workspace = true }
 serde_json = { workspace = true }
 serde_yaml = { workspace = true }
 shell-escape = { workspace = true }
+sigpipe = { workspace = true }
 tar = { workspace = true }
 tempfile = { workspace = true }
 toml = { workspace = true }

crates/typst-cli/src/main.rs

@@ -44,6 +44,10 @@ static ARGS: LazyLock<CliArguments> = LazyLock::new(|| {
 
 /// Entry point.
 fn main() -> ExitCode {
+    // Handle SIGPIPE
+    // https://stackoverflow.com/questions/65755853/simple-word-count-rust-program-outputs-valid-stdout-but-panicks-when-piped-to-he/65760807
+    sigpipe::reset();
+
     let res = dispatch();
 
     if let Err(msg) = res {