allow registration of variable watchers

1 files changed, 0 insertions, 127 deletions

diff --git a/src/run/var.rs b/src/run/var.rs
deleted file mode 100644
index 8e22f5c..0000000
--- a/src/run/var.rs
+++ /dev/null
@@ -1,127 +0,0 @@
-use std::borrow::Cow;
-use std::collections::{HashMap, HashSet};
-use std::os::unix::ffi::OsStrExt;
-use std::sync::LazyLock;
-use std::time::Instant;
-
-use crate::BString;
-use crate::bstr;
-
-pub struct Vars {
-    simple: HashMap<BString, BString>,
-    magic: HashMap<BString, fn() -> BString>,
-    all: HashSet<BString>,
-    export: HashSet<BString>,
-}
-
-impl Vars {
-    fn new(
-        mut simple: HashMap<BString, BString>,
-        magic: HashMap<BString, fn() -> BString>,
-    ) -> Self {
-        for (var, val) in std::env::vars_os() {
-            // explicitly added variables get priority.
-            if !simple.contains_key(var.as_bytes()) {
-                simple.insert(var.into_encoded_bytes(), val.into_encoded_bytes());
-            }
-        }
-        let all = simple
-            .keys()
-            .cloned()
-            .chain(magic.keys().cloned())
-            .collect();
-        let export = std::env::vars_os()
-            .map(|x| x.0.into_encoded_bytes())
-            .collect();
-        Self {
-            simple,
-            magic,
-            all,
-            export,
-        }
-    }
-
-    pub fn set(&mut self, var: BString, val: BString) {
-        self.simple.insert(var.clone(), val);
-        self.all.insert(var);
-    }
-
-    pub fn lookup<'a>(&'a self, var: &bstr) -> Option<Cow<'a, bstr>> {
-        if let Some(fun) = self.magic.get(var) {
-            return Some(Cow::Owned(fun()));
-        }
-
-        if let Some(val) = self.simple.get(var) {
-            return Some(Cow::Borrowed(val));
-        }
-
-        None
-    }
-
-    pub fn allow_export(&mut self, var: &bstr, allow: bool) {
-        if allow {
-            self.export.insert(var.to_vec());
-        } else {
-            self.export.remove(var);
-        }
-    }
-
-    pub fn export<'a>(&'a self) -> HashMap<&'a bstr, Cow<'a, bstr>> {
-        self.export
-            .iter()
-            .filter_map(|var| {
-                let val = self.lookup(var)?;
-                Some((var.as_ref(), val))
-            })
-            .collect()
-    }
-
-    pub fn vars(&self) -> &HashSet<BString> {
-        &self.all
-    }
-}
-
-macro_rules! map {
-    ($($key:expr => $val:expr),* $(,)?) => {{
-        let mut map = HashMap::<BString, _, _>::new();
-        $(map.insert($key.into(), $val);)*
-        map
-    }};
-}
-
-impl Default for Vars {
-    fn default() -> Self {
-        use crate::basedir::xdg;
-
-        let simple = map! {
-            b"PISH_VERSION" => crate::consts::PISH_VERSION.as_bytes().to_vec(),
-            b"PISH_COMMIT" => crate::consts::PISH_COMMIT.as_bytes().to_vec(),
-            b"PISH_DIRTY" => vec![crate::consts::PISH_DIRTY as u8 + b'0'],
-            xdg::DATA_HOME => xdg::data_home().as_os_str().as_bytes().to_vec(),
-            xdg::STATE_HOME => xdg::state_home().as_os_str().as_bytes().to_vec(),
-            xdg::CONFIG_HOME => xdg::config_home().as_os_str().as_bytes().to_vec(),
-        };
-
-        let magic = map! {
-            b"CWD_PRETTY" => crate::pretty_cwd as _,
-            b"SECONDS" => seconds_since_startup as _,
-        };
-
-        // call it once such that lazylock gets initialized
-        seconds_since_startup();
-
-        let mut this = Self::new(simple.clone(), magic);
-        for var in simple.keys() {
-            if var.starts_with(b"XDG_") {
-                this.allow_export(var, true);
-            }
-        }
-        this
-    }
-}
-
-static START: LazyLock<Instant> = LazyLock::new(Instant::now);
-
-fn seconds_since_startup() -> BString {
-    format!("{}", START.elapsed().as_secs_f64() as u64).into_bytes()
-}