chore: move forked deps to internal crates (#189)

Author: claration

3rdparty/decompress/Cargo.toml

@@ -0,0 +1,25 @@
+[package]
+name = "decompress"
+edition.workspace = true
+version.workspace = true
+authors.workspace = true
+license.workspace = true
+repository.workspace = true
+
+[features]
+default = []
+
+[dependencies]
+regex.workspace = true
+thiserror.workspace = true
+flate2.workspace = true
+zip.workspace = true
+lazy_static = "1.5"
+derive_builder = "0.20"
+ar = "0.9"
+tar = "0.4"
+bzip2 = "0.6"
+xz2 = "0.1"
+lzma-rs = "0.3"
+zstd = "0.13"
+infer = "0.19"

3rdparty/decompress/LICENSE

@@ -0,0 +1,201 @@
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3rdparty/decompress/src/decompressors/ar.rs

@@ -0,0 +1,140 @@
+use crate::decompressors::utils::normalize_mode;
+use crate::{DecompressError, Decompression, Decompressor, ExtractOpts, Listing};
+use ar::Archive;
+use lazy_static::lazy_static;
+use regex::Regex;
+use std::path::{Component, PathBuf};
+use std::{fs, io};
+use std::{
+    fs::File,
+    io::{BufReader, Read},
+    path::Path,
+};
+
+lazy_static! {
+    static ref RE: Regex = Regex::new(r"(?i)\.(ar|deb)$").unwrap();
+}
+
+fn build_archive(archive: &Path) -> Result<Archive<Box<dyn Read>>, DecompressError> {
+    let fd = BufReader::new(File::open(archive)?);
+    let out: Archive<Box<dyn Read>> = Archive::new(Box::new(fd));
+    Ok(out)
+}
+#[derive(Default)]
+pub struct Ar {
+    re: Option<Regex>,
+}
+
+impl Ar {
+    #[must_use]
+    pub fn new(re: Option<Regex>) -> Self {
+        Self { re }
+    }
+    #[must_use]
+    pub fn build(re: Option<Regex>) -> Box<Self> {
+        Box::new(Self::new(re))
+    }
+}
+
+impl Decompressor for Ar {
+    fn test_mimetype(&self, archive: &str) -> bool {
+        archive == "application/x-unix-archive"
+    }
+
+    fn test(&self, archive: &Path) -> bool {
+        archive
+            .file_name()
+            .and_then(std::ffi::OsStr::to_str)
+            .map_or(false, |f| self.re.as_ref().unwrap_or(&*RE).is_match(f))
+    }
+
+    fn list(&self, archive: &Path) -> Result<Listing, DecompressError> {
+        let mut out = build_archive(archive)?;
+        let mut entries = vec![];
+        while let Some(entry) = out.next_entry() {
+            let entry = entry?;
+            let header = entry.header();
+
+            let filepath = {
+                #[cfg(windows)]
+                {
+                    PathBuf::from(String::from_utf8_lossy(header.identifier()).to_string())
+                }
+                #[cfg(unix)]
+                {
+                    use std::ffi::OsStr;
+                    use std::os::unix::prelude::OsStrExt;
+                    PathBuf::from(OsStr::from_bytes(header.identifier()))
+                }
+            };
+            entries.push(filepath.to_string_lossy().to_string());
+        }
+        Ok(Listing { id: "ar", entries })
+    }
+
+    fn decompress(
+        &self,
+        archive: &Path,
+        to: &Path,
+        _opts: &ExtractOpts,
+    ) -> Result<Decompression, DecompressError> {
+        let mut out = build_archive(archive)?;
+        let mut files = vec![];
+
+        if !to.exists() {
+            fs::create_dir_all(to)?;
+        }
+
+        // alternative impl: just unpack, and then mv everything back X levels
+        while let Some(entry) = out.next_entry() {
+            let entry = entry?;
+            let header = entry.header();
+
+            let filepath = {
+                #[cfg(windows)]
+                {
+                    PathBuf::from(String::from_utf8_lossy(header.identifier()).to_string())
+                }
+                #[cfg(unix)]
+                {
+                    use std::ffi::OsStr;
+                    use std::os::unix::prelude::OsStrExt;
+                    PathBuf::from(OsStr::from_bytes(header.identifier()))
+                }
+            };
+
+            if filepath.components().any(|component| match component {
+                Component::ParentDir | Component::RootDir | Component::Prefix(..) => true,
+                Component::Normal(..) | Component::CurDir => false,
+            }) {
+                continue;
+            }
+
+            // guess what, ar archives don't support components, only 1 level is there, so stripping not relevant!
+            // so does create_dir_all'isms
+
+            // because we potentially stripped a component, we may have an empty path, in which case
+            // the joined target will be identical to the target folder
+            // we take this approach to avoid hardcoding a check against empty ""
+            let outpath = to.join(filepath);
+            if to == outpath {
+                continue;
+            }
+
+            #[cfg(unix)]
+            let mode = entry.header().mode();
+
+            let mut outfile = fs::File::create(&outpath)?;
+            io::copy(&mut BufReader::new(entry), &mut outfile)?;
+            files.push(outpath.to_string_lossy().to_string());
+
+            #[cfg(unix)]
+            {
+                use std::os::unix::fs::PermissionsExt;
+                let mode = normalize_mode(mode);
+                fs::set_permissions(&outpath, fs::Permissions::from_mode(mode))?;
+            }
+        }
+        Ok(Decompression { id: "ar", files })
+    }
+}