Interactive mode for zoxide remove

CHANGELOG.md

@@ -5,6 +5,18 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+
+### Added
+
+- Interactive mode for removing entries (`zoxide remove -i`).
+- Aliases for interactive `query` and `remove` (`zqi` and `zri` respectively)
+
+### Changed
+
+- `zoxide remove` now throws an error if there was no match in the database.
+- Interactive mode in `zoxide` no longer throws an error if `fzf` exits gracefully.
+
 ## [0.3.1] - 2020-04-03
 
 ### Added

src/db.rs

@@ -239,7 +239,13 @@ impl DB {
         }
     }
 
-    pub fn query_all<'a>(&'a mut self, keywords: &'a [String]) -> impl Iterator<Item = &'a Dir> {
+    pub fn query_many<'a>(&'a mut self, keywords: &'a [String]) -> impl Iterator<Item = &'a Dir> {
+        self.query_all()
+            .iter()
+            .filter(move |dir| dir.is_match(keywords))
+    }
+
+    pub fn query_all(&mut self) -> &[Dir] {
         let orig_len = self.data.dirs.len();
         self.data.dirs.retain(Dir::is_dir);
 
@@ -247,28 +253,34 @@ impl DB {
             self.modified = true;
         }
 
-        self.data
-            .dirs
-            .iter()
-            .filter(move |dir| dir.is_match(keywords))
+        self.data.dirs.as_slice()
     }
 
     pub fn remove<P: AsRef<Path>>(&mut self, path: P) -> Result<()> {
-        let path_canonicalized;
-        let path_abs = match path.as_ref().canonicalize() {
-            Ok(path_abs) => {
-                path_canonicalized = path_abs;
-                &path_canonicalized
-            }
-            Err(_) => path.as_ref(),
-        };
+        if let Ok(path_abs) = path.as_ref().canonicalize() {
+            self.remove_exact(path_abs)
+                .or_else(|_| self.remove_exact(path))
+        } else {
+            self.remove_exact(path)
+        }
+    }
 
-        if let Some(idx) = self.data.dirs.iter().position(|dir| dir.path == path_abs) {
+    pub fn remove_exact<P: AsRef<Path>>(&mut self, path: P) -> Result<()> {
+        if let Some(idx) = self
+            .data
+            .dirs
+            .iter()
+            .position(|dir| dir.path == path.as_ref())
+        {
             self.data.dirs.swap_remove(idx);
             self.modified = true;
+            Ok(())
+        } else {
+            bail!(
+                "could not find path in database: {}",
+                path.as_ref().display()
+            )
         }
-
-        Ok(())
     }
 
     fn get_path_tmp(&self) -> PathBuf {

src/subcommand/init.rs

@@ -219,9 +219,14 @@ fn fish_alias(z_cmd: &str) -> String {
     format!(
         r#"
 abbr -a zi '{} -i'
+
 abbr -a za 'zoxide add'
+
 abbr -a zq 'zoxide query'
+abbr -a zqi 'zoxide query -i'
+
 abbr -a zr 'zoxide remove'
+abbr -a zri 'zoxide remove -i'
 "#,
         z_cmd
     )
@@ -231,9 +236,14 @@ fn posix_alias(z_cmd: &str) -> String {
     format!(
         r#"
 alias zi='{} -i'
+
 alias za='zoxide add'
+
 alias zq='zoxide query'
+alias zqi='zoxide query -i'
+
 alias zr='zoxide remove'
+alias zri='zoxide remove -i'
 "#,
         z_cmd
     )

src/subcommand/query.rs

@@ -70,7 +70,7 @@ impl Query {
             .collect::<Vec<_>>();
 
         let mut db = util::get_db()?;
-        let dirs = db.query_all(&keywords);
+        let dirs = db.query_many(&keywords);
         util::fzf_helper(now, dirs)
     }
 }

src/subcommand/remove.rs

@@ -8,11 +8,29 @@ use std::path::PathBuf;
 #[derive(Debug, StructOpt)]
 #[structopt(about = "Remove a directory")]
 pub struct Remove {
-    path: PathBuf,
+    #[structopt(required_unless("interactive"))]
+    path: Option<PathBuf>,
+    #[structopt(short, long, help = "Opens an interactive selection menu using fzf")]
+    interactive: bool,
 }
 
 impl Remove {
     pub fn run(&self) -> Result<()> {
-        util::get_db()?.remove(&self.path)
+        if self.interactive {
+            let mut db = util::get_db()?;
+            let dirs = db.query_all();
+            let now = util::get_current_time()?;
+
+            if let Some(path_bytes) = util::fzf_helper(now, dirs)? {
+                let path = util::bytes_to_path(&path_bytes)?;
+                db.remove_exact(path)?;
+            }
+
+            Ok(())
+        } else {
+            // structopt guarantees that unwrap is safe here
+            let path = self.path.as_ref().unwrap();
+            util::get_db()?.remove(path)
+        }
     }
 }

src/util.rs

@@ -12,15 +12,35 @@ use std::process::{Command, Stdio};
 use std::time::SystemTime;
 
 #[cfg(unix)]
-pub fn path_to_bytes<P: AsRef<Path>>(path: &P) -> Option<&[u8]> {
+pub fn path_to_bytes<P: AsRef<Path>>(path: &P) -> Result<&[u8]> {
     use std::os::unix::ffi::OsStrExt;
 
-    Some(path.as_ref().as_os_str().as_bytes())
+    Ok(path.as_ref().as_os_str().as_bytes())
 }
 
 #[cfg(not(unix))]
-pub fn path_to_bytes<P: AsRef<Path>>(path: &P) -> Option<&[u8]> {
-    Some(path.as_ref().to_str()?.as_bytes())
+pub fn path_to_bytes<P: AsRef<Path>>(path: &P) -> Result<&[u8]> {
+    match path.as_ref().to_str() {
+        Some(path_str) => Ok(path_str.as_bytes()),
+        None => bail!("invalid Unicode in path"),
+    }
+}
+
+#[cfg(unix)]
+pub fn bytes_to_path(bytes: &[u8]) -> Result<&Path> {
+    use std::ffi::OsStr;
+    use std::os::unix::ffi::OsStrExt;
+
+    Ok(Path::new(OsStr::from_bytes(bytes)))
+}
+
+#[cfg(not(unix))]
+pub fn bytes_to_path(bytes: &[u8]) -> Result<&Path> {
+    use std::str;
+
+    str::from_utf8(bytes)
+        .map(Path::new)
+        .context("invalid Unicode in path")
 }
 
 pub fn get_db() -> Result<DB> {
@@ -75,7 +95,7 @@ where
 
     for &(dir, frecency) in dir_frecencies.iter() {
         // ensure that frecency fits in 4 characters
-        if let Some(path_bytes) = path_to_bytes(&dir.path) {
+        if let Ok(path_bytes) = path_to_bytes(&dir.path) {
             (|| {
                 write!(fzf_stdin, "{:>4}        ", frecency)?;
                 fzf_stdin.write_all(path_bytes)?;