decompress a file with ctrl+x

7 files changed, 58 insertions, 2 deletions

diff --git a/readme.md b/readme.md
index 61daf34..035f22d 100644
--- a/readme.md
+++ b/readme.md
@@ -111,6 +111,7 @@
   - [ ] args read correctly, use NVIM_LISTEN_ADDRESS if args is sent
 - [ ] display / event separation. use async and message passing between coroutines
 - [ ] preview images @ranger [ueberzug-rs](https://github.com/Adit-Chauhan/Ueberzug-rs) @[termimage](https://rawcdn.githack.com/nabijaczleweli/termimage/doc/termimage/index.html)
+- [ ] compress, decompress
 
 ## BUGS
 
diff --git a/src/actioner.rs b/src/actioner.rs
index ff4c50a..5794da3 100644
--- a/src/actioner.rs
+++ b/src/actioner.rs
@@ -92,6 +92,7 @@ impl Actioner {
             Event::Key(Key::Ctrl('c')) => self.ctrl_c(status),
             Event::Key(Key::Ctrl('p')) => self.ctrl_p(status),
             Event::Key(Key::Ctrl('r')) => self.refresh_selected_view(status),
+            Event::Key(Key::Ctrl('x')) => self.ctrl_x(status),
             Event::User(_) => self.refresh_selected_view(status),
             _ => Ok(()),
         }
@@ -338,6 +339,10 @@ impl Actioner {
         status.selected().refresh_view()
     }
 
+    fn ctrl_x(&self, status: &mut Status) -> FmResult<()> {
+        status.selected().event_decompress()
+    }
+
     /// Match read key to a relevent event, depending on keybindings.
     /// Keybindings are read from `Config`.
     fn char(&self, status: &mut Status, c: char) -> FmResult<()> {
diff --git a/src/compress.rs b/src/compress.rs
new file mode 100644
index 0000000..8057adb
--- /dev/null
+++ b/src/compress.rs
@@ -0,0 +1,40 @@
+use std::path::Path;
+
+use crate::fm_error::FmResult;
+use crate::opener::execute_in_child;
+
+fn decompression_command(compressed_file: &Path) -> FmResult<Vec<&str>> {
+    match compressed_file
+        .extension()
+        .unwrap_or_default()
+        .to_str()
+        .unwrap_or_default()
+    {
+        "tgz" => Ok(vec!["tar", "xf"]),
+        "zip" => Ok(vec!["unzip"]),
+        "gzip" => Ok(vec!["gunzip"]),
+        "bzip2" => Ok(vec!["bunzip2"]),
+        "xz" => Ok(vec!["xz -d"]),
+        "7z" => Ok(vec!["7z e"]),
+        _ => Ok(vec![""]),
+    }
+}
+
+pub fn decompress(compressed_file: &Path) -> FmResult<()> {
+    let mut command = decompression_command(compressed_file)?;
+    if !command.is_empty() {
+        if let Some(parent) = compressed_file.parent() {
+            let oldwd = std::env::current_dir()?;
+
+            std::env::set_current_dir(parent)?;
+            command.push(compressed_file.to_str().unwrap_or_default());
+            let exe = command.remove(0);
+            execute_in_child(exe, &command)?;
+
+            std::env::set_current_dir(oldwd)?
+        } else {
+            return Ok(());
+        }
+    }
+    Ok(())
+}
diff --git a/src/fileinfo.rs b/src/fileinfo.rs
index ab4addd..e50153f 100644
--- a/src/fileinfo.rs
+++ b/src/fileinfo.rs
@@ -176,7 +176,7 @@ impl FileInfo {
         );
         if let FileKind::SymbolicLink = self.file_kind {
             repr.push_str(" -> ");
-            repr.push_str(&self.read_dest().unwrap_or("Broken link".to_owned()));
+            repr.push_str(&self.read_dest().unwrap_or_else(|| "Broken link".to_owned()));
         }
         Ok(repr)
     }
diff --git a/src/lib.rs b/src/lib.rs
index 9e92729..f82bd6d 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -3,6 +3,7 @@ pub mod args;
 pub mod bulkrename;
 pub mod color_cache;
 pub mod completion;
+pub mod compress;
 pub mod config;
 pub mod content_window;
 pub mod copy_move;
diff --git a/src/opener.rs b/src/opener.rs
index 6d42d91..abe244d 100644
--- a/src/opener.rs
+++ b/src/opener.rs
@@ -274,7 +274,7 @@ impl Opener {
 }
 
 /// Execute the command in a fork.
-fn execute_in_child(exe: &str, args: &Vec<&str>) -> FmResult<std::process::Child> {
+pub fn execute_in_child(exe: &str, args: &Vec<&str>) -> FmResult<std::process::Child> {
     eprintln!("exec exe {}, args {:?}", exe, args);
     Ok(Command::new(exe).args(args).spawn()?)
 }
diff --git a/src/tab.rs b/src/tab.rs
index 06d0dc1..07a2325 100644
--- a/src/tab.rs
+++ b/src/tab.rs
@@ -8,6 +8,7 @@ use copypasta::{ClipboardContext, ClipboardProvider};
 
 use crate::args::Args;
 use crate::completion::Completion;
+use crate::compress::decompress;
 use crate::config::Config;
 use crate::content_window::ContentWindow;
 use crate::fileinfo::{FileKind, PathContent, SortBy};
@@ -492,6 +493,14 @@ impl Tab {
         Ok(())
     }
 
+    pub fn event_decompress(&mut self) -> FmResult<()> {
+        if let Some(fileinfo) = self.path_content.selected_file() {
+            decompress(&fileinfo.path)
+        } else {
+            Ok(())
+        }
+    }
+
     fn nvim_listen_address(&self) -> Result<String, std::env::VarError> {
         if !self.nvim_server.is_empty() {
             Ok(self.nvim_server.clone())