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From: Dominik Csapak <d.csapak@proxmox.com>
To: pbs-devel@lists.proxmox.com
Date: Wed, 31 Mar 2021 11:44:13 +0200
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Subject: [pbs-devel] [PATCH proxmox-backup 1/6] tools: add compression module
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only contains a basic enum for the different compresssion methods
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
---
src/tools.rs | 1 +
src/tools/compression.rs | 37 +++++++++++++++++++++++++++++++++++++
2 files changed, 38 insertions(+)
create mode 100644 src/tools/compression.rs
diff --git a/src/tools.rs b/src/tools.rs
index 7e3bff7b..cd1415ec 100644
--- a/src/tools.rs
+++ b/src/tools.rs
@@ -22,6 +22,7 @@ pub mod apt;
pub mod async_io;
pub mod borrow;
pub mod cert;
+pub mod compression;
pub mod daemon;
pub mod disks;
pub mod format;
diff --git a/src/tools/compression.rs b/src/tools/compression.rs
new file mode 100644
index 00000000..fe15e8fc
--- /dev/null
+++ b/src/tools/compression.rs
@@ -0,0 +1,37 @@
+use anyhow::{bail, Error};
+use hyper::header;
+
+/// Possible Compression Methods, order determines preference (later is preferred)
+#[derive(Eq, Ord, PartialEq, PartialOrd, Debug)]
+pub enum CompressionMethod {
+ Deflate,
+ Gzip,
+ Brotli,
+}
+
+impl CompressionMethod {
+ pub fn content_encoding(&self) -> header::HeaderValue {
+ header::HeaderValue::from_static(self.extension())
+ }
+
+ pub fn extension(&self) -> &'static str {
+ match *self {
+ CompressionMethod::Brotli => "br",
+ CompressionMethod::Gzip => "gzip",
+ CompressionMethod::Deflate => "deflate",
+ }
+ }
+}
+
+impl std::str::FromStr for CompressionMethod {
+ type Err = Error;
+
+ fn from_str(s: &str) -> Result<Self, Self::Err> {
+ match s {
+ "br" => Ok(CompressionMethod::Brotli),
+ "gzip" => Ok(CompressionMethod::Brotli),
+ "deflate" => Ok(CompressionMethod::Deflate),
+ _ => bail!("unknown compression format"),
+ }
+ }
+}
--
2.20.1