1 files changed, 65 insertions, 0 deletions
diff --git a/src/decompress.rs b/src/decompress.rs
new file mode 100644
index 0000000..a7d3575
--- /dev/null
+++ b/src/decompress.rs
@@ -0,0 +1,65 @@
+use crate::fm_error::{FmError, FmResult};
+use flate2::read::{GzDecoder, ZlibDecoder};
+use std::fs::File;
+use std::path::Path;
+use tar::Archive;
+
+/// Decompress a zipped compressed file into its parent directory.
+/// It may fail an return a `FmError` if the file has no parent,
+/// which should be impossible.
+pub fn decompress_zip(source: &Path) -> FmResult<()> {
+    let file = File::open(source)?;
+    let mut zip = zip::ZipArchive::new(file)?;
+
+    let parent = source
+        .parent()
+        .ok_or_else(|| FmError::custom("decompress", "source should have a parent"))?;
+    zip.extract(parent)?;
+
+    Ok(())
+}
+
+/// Decompress a gz compressed file into its parent directory.
+/// It may fail an return a `FmError` if the file has no parent,
+/// which should be impossible.
+pub fn decompress_gz(source: &Path) -> FmResult<()> {
+    let tar_gz = File::open(source)?;
+    let tar = GzDecoder::new(tar_gz);
+    let mut archive = Archive::new(tar);
+    let parent = source
+        .parent()
+        .ok_or_else(|| FmError::custom("decompress", "source should have a parent"))?;
+    archive.unpack(parent)?;
+
+    Ok(())
+}
+
+/// Decompress a zlib compressed file into its parent directory.
+/// It may fail an return a `FmError` if the file has no parent,
+/// which should be impossible.
+pub fn decompress_xz(source: &Path) -> FmResult<()> {
+    let tar_xz = File::open(source)?;
+    let tar = ZlibDecoder::new(tar_xz);
+    let mut archive = Archive::new(tar);
+    let parent = source
+        .parent()
+        .ok_or_else(|| FmError::custom("decompress", "source should have a parent"))?;
+    archive.unpack(parent)?;
+
+    Ok(())
+}
+
+pub fn list_files_zip<P>(source: P) -> FmResult<Vec<String>>
+where
+    P: AsRef<Path>,
+{
+    let file = File::open(source)?;
+    let mut content = vec![];
+    let mut zip = zip::ZipArchive::new(file)?;
+
+    for i in 0..zip.len() {
+        let file = zip.by_index(i)?;
+        content.push(file.name().to_owned());
+    }
+    Ok(content)
+}