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Merge pull request #313 from jonathandturner/fix_shell_ring

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Fix shell-ring to rotate as expected
This commit is contained in:
Jonathan Turner 2019-08-20 05:04:44 +12:00 committed by GitHub
commit 154a45bbd6
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GPG key ID: 4AEE18F83AFDEB23
4 changed files with 56 additions and 43 deletions
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24
src/commands/classified.rs
View file

@ -140,19 +140,21 @@ impl InternalCommand {
}
CommandAction::Exit => std::process::exit(0),
CommandAction::EnterValueShell(value) => {
context.shell_manager.push(Box::new(ValueShell::new(value)));
context
.shell_manager
.insert_at_current(Box::new(ValueShell::new(value)));
}
CommandAction::EnterShell(location) => {
let path = std::path::Path::new(&location);
if path.is_dir() {
// If it's a directory, add a new filesystem shell
context
.shell_manager
.push(Box::new(FilesystemShell::with_location(
context.shell_manager.insert_at_current(Box::new(
FilesystemShell::with_location(
location,
context.registry().clone(),
)?));
)?,
));
} else {
// If it's a file, attempt to open the file as a value and enter it
let cwd = context.shell_manager.path();
@ -180,11 +182,13 @@ impl InternalCommand {
Span::unknown(),
)?;
context.shell_manager.push(Box::new(ValueShell::new(value)));
context
.shell_manager
.insert_at_current(Box::new(ValueShell::new(value)));
}
value => context
.shell_manager
.push(Box::new(ValueShell::new(value.tagged(contents_tag)))),
value => context.shell_manager.insert_at_current(Box::new(
ValueShell::new(value.tagged(contents_tag)),
)),
}
}
}
@ -195,7 +199,7 @@ impl InternalCommand {
context.shell_manager.next();
}
CommandAction::LeaveShell => {
context.shell_manager.pop();
context.shell_manager.remove_at_current();
if context.shell_manager.is_empty() {
std::process::exit(0);
}

4
src/commands/shells.rs
View file

@ -6,12 +6,10 @@ pub fn shells(args: CommandArgs, _registry: &CommandRegistry) -> Result<OutputSt
let mut shells_out = VecDeque::new();
let span = args.call_info.name_span;
let shells_len = args.shell_manager.shells.lock().unwrap().len();
for (index, shell) in args.shell_manager.shells.lock().unwrap().iter().enumerate() {
let mut dict = TaggedDictBuilder::new(Tag::unknown_origin(span));
if index == (shells_len - 1) {
if index == args.shell_manager.current_shell {
dict.insert(" ", "X".to_string());
} else {
dict.insert(" ", " ".to_string());

70
src/shell/shell_manager.rs
View file

@ -9,25 +9,44 @@ use std::sync::{Arc, Mutex};
#[derive(Clone, Debug)]
pub struct ShellManager {
crate current_shell: usize,
crate shells: Arc<Mutex<Vec<Box<dyn Shell + Send>>>>,
}
impl ShellManager {
pub fn basic(commands: CommandRegistry) -> Result<ShellManager, Box<dyn Error>> {
Ok(ShellManager {
current_shell: 0,
shells: Arc::new(Mutex::new(vec![Box::new(FilesystemShell::basic(
commands,
)?)])),
})
}
pub fn push(&mut self, shell: Box<dyn Shell + Send>) {
pub fn insert_at_current(&mut self, shell: Box<dyn Shell + Send>) {
self.shells.lock().unwrap().push(shell);
self.current_shell = self.shells.lock().unwrap().len() - 1;
self.set_path(self.path());
}
pub fn pop(&mut self) {
self.shells.lock().unwrap().pop();
pub fn remove_at_current(&mut self) {
{
let mut shells = self.shells.lock().unwrap();
if shells.len() > 0 {
if self.current_shell == shells.len() - 1 {
shells.pop();
let new_len = shells.len();
if new_len > 0 {
self.current_shell = new_len - 1;
} else {
return;
}
} else {
shells.remove(self.current_shell);
}
}
}
self.set_path(self.path());
}
pub fn is_empty(&self) -> bool {
@ -35,16 +54,11 @@ impl ShellManager {
}
pub fn path(&self) -> String {
self.shells.lock().unwrap().last().unwrap().path()
self.shells.lock().unwrap()[self.current_shell].path()
}
pub fn set_path(&mut self, path: String) {
self.shells
.lock()
.unwrap()
.last_mut()
.unwrap()
.set_path(path)
self.shells.lock().unwrap()[self.current_shell].set_path(path)
}
pub fn complete(
@ -53,37 +67,33 @@ impl ShellManager {
pos: usize,
ctx: &rustyline::Context<'_>,
) -> Result<(usize, Vec<rustyline::completion::Pair>), rustyline::error::ReadlineError> {
self.shells
.lock()
.unwrap()
.last()
.unwrap()
.complete(line, pos, ctx)
self.shells.lock().unwrap()[self.current_shell].complete(line, pos, ctx)
}
pub fn hint(&self, line: &str, pos: usize, ctx: &rustyline::Context<'_>) -> Option<String> {
self.shells
.lock()
.unwrap()
.last()
.unwrap()
.hint(line, pos, ctx)
self.shells.lock().unwrap()[self.current_shell].hint(line, pos, ctx)
}
pub fn next(&mut self) {
{
let mut x = self.shells.lock().unwrap();
let shell = x.remove(0);
x.push(shell);
let shell_len = self.shells.lock().unwrap().len();
if self.current_shell == (shell_len - 1) {
self.current_shell = 0;
} else {
self.current_shell += 1;
}
}
self.set_path(self.path());
}
pub fn prev(&mut self) {
{
let mut x = self.shells.lock().unwrap();
let shell = x.pop().unwrap();
x.insert(0, shell);
let shell_len = self.shells.lock().unwrap().len();
if self.current_shell == 0 {
self.current_shell = shell_len - 1;
} else {
self.current_shell -= 1;
}
}
self.set_path(self.path());
}
@ -91,11 +101,11 @@ impl ShellManager {
pub fn ls(&self, args: EvaluatedWholeStreamCommandArgs) -> Result<OutputStream, ShellError> {
let env = self.shells.lock().unwrap();
env.last().unwrap().ls(args)
env[self.current_shell].ls(args)
}
pub fn cd(&self, args: EvaluatedWholeStreamCommandArgs) -> Result<OutputStream, ShellError> {
let env = self.shells.lock().unwrap();
env.last().unwrap().cd(args)
env[self.current_shell].cd(args)
}
}

1
tests/command_enter_test.rs
View file

@ -48,6 +48,7 @@ fn knows_the_filesystems_entered() {
cd ..
rm red_pill --recursive
exit
n
rm blue_pill --recursive
exit
"#