2019-05-11 09:00:33 +02:00
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use crate::errors::ShellError;
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2019-05-13 19:30:51 +02:00
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use crate::prelude::*;
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2019-05-18 04:53:20 +02:00
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use std::env;
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2019-06-13 23:47:25 +02:00
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use std::path::PathBuf;
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2019-05-11 09:00:33 +02:00
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2019-05-23 09:23:06 +02:00
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pub fn cd(args: CommandArgs) -> Result<OutputStream, ShellError> {
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2019-06-13 23:47:25 +02:00
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let env = args.env.lock().unwrap();
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2019-06-15 19:52:55 +02:00
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let latest = env.back().unwrap();
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2019-06-13 23:47:25 +02:00
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match latest.obj {
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Value::Filesystem => {
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let cwd = latest.path().to_path_buf();
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let path = match args.positional.first() {
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None => match dirs::home_dir() {
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Some(o) => o,
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_ => return Err(ShellError::string("Can not change to home directory")),
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},
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Some(v) => {
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let target = v.as_string()?.clone();
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match dunce::canonicalize(cwd.join(&target).as_path()) {
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Ok(p) => p,
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Err(_) => {
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return Err(ShellError::labeled_error(
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"Can not change to directory",
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"directory not found",
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args.positional[0].span.clone(),
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));
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}
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}
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}
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};
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let mut stream = VecDeque::new();
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match env::set_current_dir(&path) {
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Ok(_) => {}
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2019-06-08 00:35:07 +02:00
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Err(_) => {
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2019-06-13 23:47:25 +02:00
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if args.positional.len() > 0 {
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return Err(ShellError::labeled_error(
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"Can not change to directory",
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"directory not found",
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args.positional[0].span.clone(),
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));
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} else {
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return Err(ShellError::string("Can not change to directory"));
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}
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2019-06-08 00:35:07 +02:00
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}
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}
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2019-06-13 23:47:25 +02:00
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stream.push_back(ReturnValue::change_cwd(path));
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Ok(stream.boxed())
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2019-06-03 09:41:28 +02:00
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}
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2019-06-13 23:47:25 +02:00
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_ => {
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let mut stream = VecDeque::new();
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match args.positional.first() {
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None => {
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stream.push_back(ReturnValue::change_cwd(PathBuf::from("/")));
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}
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Some(v) => {
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let mut cwd = latest.path().to_path_buf();
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let target = v.as_string()?.clone();
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match target {
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x if x == ".." => {
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cwd.pop();
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}
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_ => match target.chars().nth(0) {
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Some(x) if x == '/' => cwd = PathBuf::from(target),
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_ => {
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cwd.push(target);
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}
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},
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}
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stream.push_back(ReturnValue::change_cwd(cwd));
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}
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};
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Ok(stream.boxed())
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2019-06-08 00:35:07 +02:00
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}
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}
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2019-05-11 09:00:33 +02:00
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}
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