ripgrep: add support for lz4 decompression

This uses the lz4 binary for decompression.

Closes #898

2 files changed, 4 insertions, 1 deletions

diff --git a/src/app.rs b/src/app.rs
index 5728371f..a0fdf946 100644
--- a/src/app.rs
+++ b/src/app.rs
@@ -1445,7 +1445,7 @@ This flag can be used with the -o/--only-matching flag.
 fn flag_search_zip(args: &mut Vec<RGArg>) {
     const SHORT: &str = "Search in compressed files.";
     const LONG: &str = long!("\
-Search in compressed files. Currently gz, bz2, xz, and lzma files are
+Search in compressed files. Currently gz, bz2, xz, lzma and lz4 files are
 supported. This option expects the decompression binaries to be available in
 your PATH.
 
diff --git a/src/decompressor.rs b/src/decompressor.rs
index a94948af..235849b7 100644
--- a/src/decompressor.rs
+++ b/src/decompressor.rs
@@ -44,6 +44,7 @@ lazy_static! {
         m.insert("gz", DecompressionCommand::new("gzip", ARGS));
         m.insert("bz2", DecompressionCommand::new("bzip2", ARGS));
         m.insert("xz", DecompressionCommand::new("xz", ARGS));
+        m.insert("lz4", DecompressionCommand::new("lz4", ARGS));
 
         const LZMA_ARGS: &[&str] = &["--format=lzma", "-d", "-c"];
         m.insert("lzma", DecompressionCommand::new("xz", LZMA_ARGS));
@@ -55,6 +56,7 @@ lazy_static! {
         builder.add(Glob::new("*.gz").unwrap());
         builder.add(Glob::new("*.bz2").unwrap());
         builder.add(Glob::new("*.xz").unwrap());
+        builder.add(Glob::new("*.lz4").unwrap());
         builder.add(Glob::new("*.lzma").unwrap());
         builder.build().unwrap()
     };
@@ -63,6 +65,7 @@ lazy_static! {
         builder.add(Glob::new("*.tar.gz").unwrap());
         builder.add(Glob::new("*.tar.xz").unwrap());
         builder.add(Glob::new("*.tar.bz2").unwrap());
+        builder.add(Glob::new("*.tar.lz4").unwrap());
         builder.add(Glob::new("*.tgz").unwrap());
         builder.add(Glob::new("*.txz").unwrap());
         builder.add(Glob::new("*.tbz2").unwrap());