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Properly detect if we are compressing a partially compressed file

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This commit is contained in:
Spyros Roum 2021-10-15 00:33:17 +03:00
parent c89c34a91f
commit 9907ebcf36
1 changed files with 13 additions and 1 deletions
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14
src/commands.rs
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@ -163,12 +163,24 @@ pub fn run(command: Command, flags: &oof::Flags) -> crate::Result<()> {
fn compress_files(
files: Vec<PathBuf>,
formats: Vec<CompressionFormat>,
mut formats: Vec<CompressionFormat>,
output_file: fs::File,
_flags: &oof::Flags,
) -> crate::Result<()> {
let file_writer = BufWriter::with_capacity(BUFFER_CAPACITY, output_file);
if files.len() == 1 {
// It's possible the file is already partially compressed so we don't want to compress it again
// `ouch compress file.tar.gz file.tar.gz.xz` should produce `file.tar.gz.xz` and not `file.tar.gz.tar.gz.xz`
let cur_extensions = extension::extensions_from_path(&files[0]);
// If the input is a subset at the start of `formats` then remove the extensions
if cur_extensions.len() < formats.len() && cur_extensions.iter().zip(&formats).all(|(inp, out)| inp == out) {
let drain_iter = formats.drain(..cur_extensions.len());
drop(drain_iter); // Remove the extensions from `formats`
}
}
if let [Tar | Tgz | Zip] = *formats.as_slice() {
match formats[0] {
Tar => {