feat: write pid in addition to port to server info (#4571)
This is nice to have for debugging. While here, also cleaned up a bunch of unnecessary noise in `write_server_info()`.
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@@ -49,6 +49,7 @@ pub struct Args {
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#[derive(Serialize)]
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struct ServerInfo {
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port: u16,
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pid: u32,
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}
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/// Entry point for the library main, for parity with other crates.
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@@ -100,15 +101,17 @@ fn write_server_info(path: &Path, port: u16) -> Result<()> {
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if let Some(parent) = path.parent()
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&& !parent.as_os_str().is_empty()
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{
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let parent_display = parent.display();
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fs::create_dir_all(parent).with_context(|| format!("create_dir_all {parent_display}"))?;
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fs::create_dir_all(parent)?;
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}
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let info = ServerInfo { port };
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let data = serde_json::to_vec(&info).context("serialize startup info")?;
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let p = path.display();
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let mut f = File::create(path).with_context(|| format!("create {p}"))?;
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f.write_all(&data).with_context(|| format!("write {p}"))?;
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f.write_all(b"\n").with_context(|| format!("newline {p}"))?;
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let info = ServerInfo {
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port,
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pid: std::process::id(),
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};
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let mut data = serde_json::to_string(&info)?;
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data.push('\n');
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let mut f = File::create(path)?;
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f.write_all(data.as_bytes())?;
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Ok(())
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}
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