phpup/commands/
init.rs

1use super::{Command, Config};
2use crate::shell::{self, Shell};
3use crate::symlink;
4use crate::version;
5use crate::version::system;
6use crate::version::Alias;
7use crate::version::Local;
8use clap;
9use std::path::PathBuf;
10use thiserror::Error;
11
12#[derive(clap::Parser, Debug)]
13pub struct Init {
14    /// Spacify a shell type
15    #[clap(long, possible_values(shell::available_shells()))]
16    shell: Option<Shell>,
17
18    /// Enable automatically version switching when changing directory
19    #[clap(long, visible_alias = "auto")]
20    auto_switch: bool,
21
22    #[clap(flatten)]
23    version_file: version::File,
24}
25
26#[derive(Error, Debug)]
27pub enum Error {
28    #[error("Can't detect using shell: {0}; You may be using unsupported shell")]
29    UndetectedShell(#[from] shell::ShellDetectError),
30}
31
32impl Command for Init {
33    type Error = Error;
34
35    fn run(&self, config: &Config) -> Result<(), Error> {
36        let shell = self.shell.map_or_else(Shell::detect_shell, Ok)?;
37        let symlink = create_symlink();
38        if let Some(default_path) = default_path(config) {
39            symlink::link(&default_path, &symlink).expect("Can't create symlink!");
40        }
41
42        let mut eval_stmts = vec![
43            shell.set_env("PHPUP_MULTISHELL_PATH", symlink.display()),
44            shell.set_path(symlink),
45        ];
46        if self.auto_switch {
47            eval_stmts.push(shell.auto_switch_hook(&self.version_file))
48        }
49        if let Some(rehash) = shell.rehash() {
50            eval_stmts.push(rehash)
51        }
52        println!("{}", eval_stmts.join("\n"));
53        Ok(())
54    }
55}
56
57fn create_symlink() -> std::path::PathBuf {
58    let temp_dir = std::env::temp_dir().join("phpup");
59    std::fs::create_dir_all(&temp_dir).expect("Can't create tempdir!");
60
61    loop {
62        let symlink_path = temp_dir.join(generate_symlink_path());
63        if !symlink_path.exists() {
64            break symlink_path;
65        }
66    }
67}
68
69fn generate_symlink_path() -> PathBuf {
70    PathBuf::from(format!(
71        "{}_{}",
72        std::process::id(),
73        chrono::Utc::now().timestamp_millis(),
74    ))
75}
76
77fn default_path(config: &Config) -> Option<PathBuf> {
78    if let Ok(Local::Installed(version)) = Alias::default().resolve(config.aliases_dir()) {
79        if let Some(installed) = version::latest_installed_by(&version, config) {
80            Some(
81                config
82                    .versions_dir()
83                    .join(installed.to_string())
84                    .join("bin"),
85            )
86        } else {
87            println!(
88                "echo \"warning: Version '{}' which is specified as default does not exist\"",
89                version
90            );
91            None
92        }
93    } else {
94        system::path()
95    }
96}
97
98#[cfg(test)]
99mod tests {}
phpup/commands/init.rs

phpup/commands/
init.rs
