3 files changed, 31 insertions, 4 deletions

diff --git a/pish_derive/src/lib.rs b/pish_derive/src/lib.rs
index 2ac98f7..0d06aa5 100644
--- a/pish_derive/src/lib.rs
+++ b/pish_derive/src/lib.rs
@@ -76,7 +76,7 @@ pub fn derive_cli(input: TokenStream) -> TokenStream {
     let expanded = quote! {
         impl ArgParse for #name {
             fn parse<'a>(args: &'a [BString]) -> std::result::Result<Self, ArgParseError<'a>> {
-                let mut iter = args.iter().skip(1);
+                let mut iter = args.iter();
 
                 #(#field_parsers_init)*
 
diff --git a/src/main.rs b/src/main.rs
index 9a4e692..3687cd0 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,4 +1,5 @@
 use std::collections::HashMap;
+use std::env::current_dir;
 use std::ffi::OsStr;
 use std::fs;
 use std::io::{self, IsTerminal, Read, Write};
@@ -60,7 +61,13 @@ type bstr = [u8];
 
 #[derive(Clone)]
 struct HistoryEntry {
+    /// time of execution
     pub time: date::DateTime,
+
+    /// absolute path where the command was executed
+    pub loc: BString,
+
+    /// the command
     pub cmd: BString,
 }
 
@@ -68,6 +75,7 @@ impl HistoryEntry {
     pub fn new(cmd: BString) -> Self {
         Self {
             time: date::DateTime::now(),
+            loc: current_dir().unwrap().as_os_str().as_encoded_bytes().to_vec(),
             cmd,
         }
     }
diff --git a/src/run/builtin.rs b/src/run/builtin.rs
index 366aaa5..c3153d6 100644
--- a/src/run/builtin.rs
+++ b/src/run/builtin.rs
@@ -20,7 +20,7 @@ pub trait ArgParse: Sized {
     fn parse<'a>(args: &'a [BString]) -> std::result::Result<Self, ArgParseError<'a>>;
 }
 
-fn args<T: ArgParse>(args: &[BString], w: &mut dyn Write) -> std::result::Result<T, Error> {
+fn read_args<T: ArgParse>(args: &[BString], w: &mut dyn Write) -> std::result::Result<T, Error> {
     let err = match T::parse(args) {
         Ok(t) => return Ok(t),
         Err(e) => e,
@@ -245,10 +245,12 @@ impl Builtin for builtins {
     }
 }
 
-#[derive(FromArgs)]
+#[derive(FromArgs, Debug)]
 struct HistoryArgs {
+    /// displays only local shell session history
     local: bool,
 
+    /// displays only history of current directory
     here: bool,
     at: Option<PathBuf>,
     // TODO: temporal control, i.e. before & after
@@ -263,13 +265,29 @@ impl Builtin for history {
     fn io(
         &self,
         session: Arc<Mutex<Session>>,
-        _args: &[BString],
+        args: &[BString],
         _stdin: &mut dyn Read,
         stdout: &mut dyn Write,
     ) -> Result {
+        let args: HistoryArgs = read_args(args, stdout)?;
         let hist = session.lock().unwrap().history.clone();
         let now = crate::date::DateTime::now();
+
+        let in_dir = if args.here {
+            current_dir()?.as_os_str().as_bytes().to_vec()
+        } else if let Some(path) = args.at {
+            path.as_os_str().as_bytes().to_vec()
+        } else {
+            Vec::new()
+        };
+
+        // TODO: local handling (first implement global history)
+
         for entry in hist {
+            if !entry.loc.starts_with(&in_dir) {
+                continue;
+            }
+
             let delta = now.relative_to(&entry.time);
             for _ in 0..crate::date::DateTime::longest_reasonable_delta() - delta.len() {
                 stdout.write_all(b" ")?;
@@ -279,6 +297,7 @@ impl Builtin for history {
             stdout.write_all(&entry.cmd)?;
             stdout.write_all(b"\n")?;
         }
+
         Ok(())
     }
 }