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use anyhow::{Context, Result};
use flate2::read::{GzDecoder, ZlibDecoder};
use std::fs::File;
use std::path::Path;
use tar::Archive;
use crate::common::{path_to_string, TAR};
use crate::io::execute_and_output;
/// Decompress a zipped compressed file into its parent directory.
///
/// # Errors
///
/// It may fail if the file can't be opened or if [`zip::ZipArchive::new`] can't
/// read the archive.
pub fn decompress_zip(source: &Path) -> Result<()> {
let file = File::open(source)?;
let mut zip = zip::ZipArchive::new(file)?;
let parent = source
.parent()
.context("decompress: source should have a parent")?;
zip.extract(parent)?;
Ok(())
}
/// Decompress a gz compressed file into its parent directory.
///
/// # Errors
///
/// It may fail if the file can't be opened.
pub fn decompress_gz(source: &Path) -> Result<()> {
let tar_gz = File::open(source)?;
let tar = GzDecoder::new(tar_gz);
let mut archive = Archive::new(tar);
let parent = source
.parent()
.context("decompress: source should have a parent")?;
archive.unpack(parent)?;
Ok(())
}
/// Decompress a zlib compressed file into its parent directory.
///
/// # Errors
///
/// It may fail if the file can't be opened.
pub fn decompress_xz(source: &Path) -> Result<()> {
let tar_xz = File::open(source)?;
let tar = ZlibDecoder::new(tar_xz);
let mut archive = Archive::new(tar);
let parent = source
.parent()
.context("decompress: source should have a parent")?;
archive.unpack(parent)?;
Ok(())
}
/// List files contained in a ZIP file.
/// Will return an error if the ZIP file is corrupted.
///
/// # Errors
///
/// It may fail if the source file can't be open.
/// It may also fail if [`zip::ZipArchive::new`] read the archive.
pub fn list_files_zip<P>(source: P) -> Result<Vec<String>>
where
P: AsRef<Path>,
{
let file = File::open(source)?;
let zip = zip::ZipArchive::new(file)?;
Ok(zip
.file_names()
.map(std::borrow::ToOwned::to_owned)
.collect())
}
/// List files contained in a tar.something file.
/// Will return an error if `tar tvf source` can't list the content.
///
/// # Errors
///
/// It may fail if the `tar tvf` command returns an error.
pub fn list_files_tar<P>(source: P) -> Result<Vec<String>>
where
P: AsRef<Path>,
{
if let Ok(output) = execute_and_output(TAR, ["tvf", path_to_string(&source).as_str()]) {
let output = String::from_utf8(output.stdout).unwrap_or_default();
let content = output.lines().map(std::borrow::ToOwned::to_owned).collect();
return Ok(content);
}
Err(anyhow::anyhow!("Tar couldn't read the file content"))
}
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