add mimetype support via file command

3 files changed, 61 insertions, 3 deletions

diff --git a/src/util/mimetype.rs b/src/util/mimetype.rs
new file mode 100644
index 0000000..423cb2f
--- /dev/null
+++ b/src/util/mimetype.rs
@@ -0,0 +1,57 @@
+use std::path::Path;
+use std::{io, process::Command};
+
+use crate::error::{JoshutoError, JoshutoErrorKind, JoshutoResult};
+
+pub struct Mimetype {
+    _type: String,
+    _subtype: String,
+}
+
+impl Mimetype {
+    pub fn new(ttype: String, subtype: String) -> Self {
+        Self {
+            _type: ttype,
+            _subtype: subtype,
+        }
+    }
+
+    pub fn get_type(&self) -> &str {
+        &self._type
+    }
+
+    pub fn get_subtype(&self) -> &str {
+        &&self._subtype
+    }
+}
+
+pub fn get_mimetype(p: &Path) -> JoshutoResult<Mimetype> {
+    let res = Command::new("file")
+        .arg("--mime-type")
+        .arg("-Lb")
+        .arg(p)
+        .output();
+
+    let output = res?;
+    if !output.status.success() {
+        let stderr_msg = String::from_utf8_lossy(&output.stderr).to_string();
+
+        let error = JoshutoError::new(
+            JoshutoErrorKind::Io(io::ErrorKind::InvalidInput),
+            stderr_msg,
+        );
+        return Err(error);
+    }
+
+    let stdout_msg = String::from_utf8_lossy(&output.stdout).to_string();
+    match stdout_msg.trim().split_once('/') {
+        Some((ttype, subtype)) => Ok(Mimetype::new(ttype.to_string(), subtype.to_string())),
+        None => {
+            let error = JoshutoError::new(
+                JoshutoErrorKind::Io(io::ErrorKind::InvalidInput),
+                "Unknown mimetype".to_string(),
+            );
+            return Err(error);
+        }
+    }
+}
diff --git a/src/util/mod.rs b/src/util/mod.rs
index c7ad758..562ec57 100644
--- a/src/util/mod.rs
+++ b/src/util/mod.rs
@@ -3,6 +3,7 @@ pub mod devicons;
 
 pub mod format;
 pub mod keyparse;
+pub mod mimetype;
 pub mod name_resolution;
 pub mod process;
 pub mod search;
diff --git a/src/util/process.rs b/src/util/process.rs
index 4bf34fa..fba1cff 100644
--- a/src/util/process.rs
+++ b/src/util/process.rs
@@ -3,11 +3,11 @@ use std::process;
 use std::sync::mpsc;
 use std::thread;
 
-use crate::config::AppMimetypeEntry;
+use crate::config::ProgramEntry;
 use crate::event::AppEvent;
 
 pub fn fork_execute<I, S>(
-    entry: &AppMimetypeEntry,
+    entry: &ProgramEntry,
     paths: I,
     event_tx: mpsc::Sender<AppEvent>,
 ) -> std::io::Result<(u32, thread::JoinHandle<()>)>
@@ -38,7 +38,7 @@ where
     Ok((child_id, handle))
 }
 
-pub fn execute_and_wait<I, S>(entry: &AppMimetypeEntry, paths: I) -> std::io::Result<()>
+pub fn execute_and_wait<I, S>(entry: &ProgramEntry, paths: I) -> std::io::Result<()>
 where
     I: IntoIterator<Item = S>,
     S: AsRef<std::ffi::OsStr>,