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use std::path::{Path, PathBuf};
use crate::env::PATH_KEY;
use crate::file::touch_dir;
use crate::path_env::PathEnv;
use crate::shell::{get_shell, ActivateOptions, Shell, ShellType};
use crate::{dirs, env};
use eyre::Result;
use itertools::Itertools;
/// Initializes mise in the current shell session
///
/// This should go into your shell's rc file or login shell.
/// Otherwise, it will only take effect in the current session.
/// (e.g. ~/.zshrc, ~/.zprofile, ~/.zshenv, ~/.bashrc, ~/.bash_profile, ~/.profile, ~/.config/fish/config.fish, or $PROFILE for powershell)
///
/// Typically, this can be added with something like the following:
///
/// echo 'eval "$(mise activate zsh)"' >> ~/.zshrc
///
/// However, this requires that "mise" is in your PATH. If it is not, you need to
/// specify the full path like this:
///
/// echo 'eval "$(/path/to/mise activate zsh)"' >> ~/.zshrc
///
/// Customize status output with `status` settings.
#[derive(Debug, clap::Args)]
#[clap(verbatim_doc_comment, after_long_help = AFTER_LONG_HELP)]
pub struct Activate {
/// Shell type to generate the script for
#[clap(long, short, hide = true)]
shell: Option<ShellType>,
/// Shell type to generate the script for
#[clap()]
shell_type: Option<ShellType>,
/// Show "mise: <PLUGIN>@<VERSION>" message when changing directories
#[clap(long, hide = true)]
status: bool,
/// Use shims instead of modifying PATH
/// Effectively the same as:
///
/// PATH="$HOME/.local/share/mise/shims:$PATH"
///
/// `mise activate --shims` does not support all the features of `mise activate`.
/// See https://mise.jdx.dev/dev-tools/shims.html#shims-vs-path for more information
#[clap(long, verbatim_doc_comment)]
shims: bool,
/// Suppress non-error messages
#[clap(long, short)]
quiet: bool,
/// Do not automatically call hook-env
///
/// This can be helpful for debugging mise. If you run `eval "$(mise activate --no-hook-env)"`, then
/// you can call `mise hook-env` manually which will output the env vars to stdout without actually
/// modifying the environment. That way you can do things like `mise hook-env --trace` to get more
/// information or just see the values that hook-env is outputting.
#[clap(long)]
no_hook_env: bool,
}
impl Activate {
pub fn run(self) -> Result<()> {
let shell = get_shell(self.shell_type.or(self.shell))
.expect("no shell provided. Run `mise activate zsh` or similar");
// touch ROOT to allow hook-env to run
let _ = touch_dir(&dirs::DATA);
let mise_bin = if cfg!(target_os = "linux") {
// linux dereferences symlinks, so use argv0 instead
PathBuf::from(&*env::ARGV0)
} else {
env::MISE_BIN.clone()
};
match self.shims {
true => self.activate_shims(shell.as_ref(), &mise_bin)?,
false => self.activate(shell.as_ref(), &mise_bin)?,
}
Ok(())
}
fn activate_shims(&self, shell: &dyn Shell, mise_bin: &Path) -> std::io::Result<()> {
let exe_dir = mise_bin.parent().unwrap();
miseprint!("{}", self.prepend_path(shell, exe_dir))?;
miseprint!("{}", self.prepend_path(shell, &dirs::SHIMS))?;
Ok(())
}
fn activate(&self, shell: &dyn Shell, mise_bin: &Path) -> std::io::Result<()> {
remove_shims(shell)?;
let exe_dir = mise_bin.parent().unwrap();
let mut flags = vec![];
if self.quiet {
flags.push(" --quiet");
}
if self.status {
flags.push(" --status");
}
miseprint!("{}", self.prepend_path(shell, exe_dir))?;
miseprint!(
"{}",
shell.activate(ActivateOptions {
exe: mise_bin.to_path_buf(),
flags: flags.join(""),
no_hook_env: self.no_hook_env,
})
)?;
Ok(())
}
fn prepend_path(&self, shell: &dyn Shell, p: &Path) -> String {
if is_dir_not_in_nix(p) && !is_dir_in_path(p) && !p.is_relative() {
shell.prepend_env(&PATH_KEY, p.to_string_lossy().as_ref())
} else {
String::new()
}
}
}
fn remove_shims(shell: &dyn Shell) -> std::io::Result<()> {
let shims = dirs::SHIMS
.canonicalize()
.unwrap_or(dirs::SHIMS.to_path_buf());
if env::PATH
.iter()
.filter_map(|p| p.canonicalize().ok())
.contains(&shims)
{
let path_env = PathEnv::from_iter(env::PATH.clone());
// PathEnv automatically removes the shims directory
let cmd = shell.set_env(&PATH_KEY, path_env.join().to_string_lossy().as_ref());
miseprintln!("{cmd}");
}
Ok(())
}
fn is_dir_in_path(dir: &Path) -> bool {
let dir = dir.canonicalize().unwrap_or(dir.to_path_buf());
env::PATH
.clone()
.into_iter()
.any(|p| p.canonicalize().unwrap_or(p) == dir)
}
fn is_dir_not_in_nix(dir: &Path) -> bool {
!dir.canonicalize()
.unwrap_or(dir.to_path_buf())
.starts_with("/nix/")
}
static AFTER_LONG_HELP: &str = color_print::cstr!(
r#"<bold><underline>Examples:</underline></bold>
$ <bold>eval "$(mise activate bash)"</bold>
$ <bold>eval "$(mise activate zsh)"</bold>
$ <bold>mise activate fish | source</bold>
$ <bold>execx($(mise activate xonsh))</bold>
$ <bold>(&mise activate pwsh) | Out-String | Invoke-Expression</bold>
"#
);