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update: end the kept answer with a newline #21

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Merged
karalabe merged 1 commit into from
Sep 25, 2026
Merged

update: end the kept answer with a newline #21

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6 changes: 4 additions & 2 deletions src/update.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -91,8 +91,10 @@ impl Answer {
/// Replaces the kept answer through a renamed temporary file, so a reader
/// never sees half of it.
pub fn write(&self, directory: &Path) -> io::Result<()> {
// Serialize the answer and make sure the cache directory exists
let bytes = serde_json::to_vec(self).map_err(io::Error::other)?;
// Serialize the answer as one line ending in a newline, and make sure
// the cache directory exists
let mut bytes = serde_json::to_vec(self).map_err(io::Error::other)?;
bytes.push(b'\n');
fs::create_dir_all(directory)?;

// Rename only a completely written file over the kept answer
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