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tweak: write to temp file first

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This commit is contained in:
Adil Hanney 2026-02-10 19:25:03 +00:00
parent 98810952c5
commit 4259ed78b9
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2 changed files with 26 additions and 5 deletions
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16
cosmic-theme/src/output/gtk4_output.rs
View file

@ -163,9 +163,19 @@ impl Theme {
std::fs::create_dir_all(&config_dir).map_err(OutputError::Io)?;
}
let mut file = File::create(config_dir.join(name)).map_err(OutputError::Io)?;
file.write_all(css_str.as_bytes())
.map_err(OutputError::Io)?;
let file_path = config_dir.join(name);
let tmp_file_path = config_dir.join(name + "~");
// Write to tmp_file_path first, then move it to file_path
let mut tmp_file = File::create(tmp_file_path).map_err(OutputError::Io)?;
let res = tmp_file
.write_all(css_str.as_bytes())
.and_then(|| tmp_file.flush()?)
.and_then(|| std::fs::rename(tmp_file_path, file_path)?);
if let Err(e) = res {
_ = std::fs::remove_file(tmp_file);
return Err(OutputError::Io(e));
}
Ok(())
}

15
cosmic-theme/src/output/qt_output.rs
View file

@ -206,8 +206,19 @@ contrast=4
std::fs::create_dir_all(&data_dir).map_err(OutputError::Io)?;
}
let mut file = File::create(data_dir.join(file_name)).map_err(OutputError::Io)?;
file.write_all(colors.as_bytes()).map_err(OutputError::Io)?;
let file_path = data_dir.join(file_name);
let tmp_file_path = data_dir.join(file_name + "~");
// Write to tmp_file_path first, then move it to file_path
let mut tmp_file = File::create(tmp_file_path).map_err(OutputError::Io)?;
let res = tmp_file
.write_all(colors.as_bytes())
.and_then(|| tmp_file.flush()?)
.and_then(|| std::fs::rename(tmp_file_path, file_path)?);
if let Err(e) = res {
_ = std::fs::remove_file(tmp_file);
return Err(OutputError::Io(e));
}
Ok(())
}