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denoland-deno/cli/installer.rs
Bert Belder ee7727cd07
To find home dir, use only $USERPROFILE on Windows, $HOME on Posix (#6132)
$HOME is meaningless on Windows. It may be set by users or by third
party software, but it is non-standard and should not be relied upon.

Likewise, $USERPROFILE is meaningless on other platforms.
2020-06-05 22:15:05 +02:00

632 lines
18 KiB
Rust
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// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
use crate::flags::Flags;
use log::Level;
use regex::{Regex, RegexBuilder};
use std::env;
use std::fs;
use std::fs::File;
use std::io::Error;
use std::io::ErrorKind;
use std::io::Write;
#[cfg(not(windows))]
use std::os::unix::fs::PermissionsExt;
use std::path::PathBuf;
use url::Url;
lazy_static! {
static ref EXEC_NAME_RE: Regex = RegexBuilder::new(
r"^[a-z][\w-]*$"
).case_insensitive(true).build().unwrap();
// Regular expression to test disk driver letter. eg "C:\\User\username\path\to"
static ref DRIVE_LETTER_REG: Regex = RegexBuilder::new(
r"^[c-z]:"
).case_insensitive(true).build().unwrap();
}
pub fn is_remote_url(module_url: &str) -> bool {
let lower = module_url.to_lowercase();
lower.starts_with("http://") || lower.starts_with("https://")
}
fn validate_name(exec_name: &str) -> Result<(), Error> {
if EXEC_NAME_RE.is_match(exec_name) {
Ok(())
} else {
Err(Error::new(
ErrorKind::Other,
format!("Invalid executable name: {}", exec_name),
))
}
}
#[cfg(windows)]
/// On Windows if user is using Powershell .cmd extension is need to run the
/// installed module.
/// Generate batch script to satisfy that.
fn generate_executable_file(
file_path: PathBuf,
args: Vec<String>,
) -> Result<(), Error> {
let args: Vec<String> = args.iter().map(|c| format!("\"{}\"", c)).collect();
let template = format!(
"% generated by deno install %\n@deno.exe {} %*\n",
args.join(" ")
);
let mut file = File::create(&file_path)?;
file.write_all(template.as_bytes())?;
Ok(())
}
#[cfg(not(windows))]
fn generate_executable_file(
file_path: PathBuf,
args: Vec<String>,
) -> Result<(), Error> {
let args: Vec<String> = args.iter().map(|c| format!("\"{}\"", c)).collect();
let template = format!(
r#"#!/bin/sh
# generated by deno install
deno {} "$@"
"#,
args.join(" "),
);
let mut file = File::create(&file_path)?;
file.write_all(template.as_bytes())?;
let _metadata = fs::metadata(&file_path)?;
let mut permissions = _metadata.permissions();
permissions.set_mode(0o755);
fs::set_permissions(&file_path, permissions)?;
Ok(())
}
fn get_installer_root() -> Result<PathBuf, Error> {
if let Ok(env_dir) = env::var("DENO_INSTALL_ROOT") {
if !env_dir.is_empty() {
return PathBuf::from(env_dir).canonicalize();
}
}
// Note: on Windows, the $HOME environment variable may be set by users or by
// third party software, but it is non-standard and should not be relied upon.
let home_env_var = if cfg!(windows) { "USERPROFILE" } else { "HOME" };
let mut home_path =
env::var_os(home_env_var)
.map(PathBuf::from)
.ok_or_else(|| {
Error::new(
ErrorKind::NotFound,
format!("${} is not defined", home_env_var),
)
})?;
home_path.push(".deno");
Ok(home_path)
}
fn infer_name_from_url(url: &Url) -> Option<String> {
let path = PathBuf::from(url.path());
let stem = match path.file_stem() {
Some(stem) => stem.to_string_lossy().to_string(),
None => return None,
};
if let Some(parent_path) = path.parent() {
if stem == "main" || stem == "mod" || stem == "index" || stem == "cli" {
if let Some(parent_name) = parent_path.file_name() {
return Some(parent_name.to_string_lossy().to_string());
}
}
}
Some(stem)
}
pub fn install(
flags: Flags,
module_url: &str,
args: Vec<String>,
name: Option<String>,
root: Option<PathBuf>,
force: bool,
) -> Result<(), Error> {
let root = if let Some(root) = root {
root.canonicalize()?
} else {
get_installer_root()?
};
let installation_dir = root.join("bin");
// ensure directory exists
if let Ok(metadata) = fs::metadata(&installation_dir) {
if !metadata.is_dir() {
return Err(Error::new(
ErrorKind::Other,
"Installation path is not a directory",
));
}
} else {
fs::create_dir_all(&installation_dir)?;
};
// Check if module_url is remote
let module_url = if is_remote_url(module_url) {
Url::parse(module_url).expect("Should be valid url")
} else {
let module_path = PathBuf::from(module_url);
let module_path = if module_path.is_absolute() {
module_path
} else {
let cwd = env::current_dir().unwrap();
cwd.join(module_path)
};
Url::from_file_path(module_path).expect("Path should be absolute")
};
let name = name.or_else(|| infer_name_from_url(&module_url));
let name = match name {
Some(name) => name,
None => return Err(Error::new(
ErrorKind::Other,
"An executable name was not provided. One could not be inferred from the URL. Aborting.",
)),
};
validate_name(name.as_str())?;
let mut file_path = installation_dir.join(&name);
if cfg!(windows) {
file_path = file_path.with_extension("cmd");
}
if file_path.exists() && !force {
return Err(Error::new(
ErrorKind::Other,
"Existing installation found. Aborting (Use -f to overwrite).",
));
};
let mut executable_args = vec!["run".to_string()];
executable_args.extend_from_slice(&flags.to_permission_args());
if let Some(ca_file) = flags.ca_file {
executable_args.push("--cert".to_string());
executable_args.push(ca_file)
}
if let Some(log_level) = flags.log_level {
if log_level == Level::Error {
executable_args.push("--quiet".to_string());
} else {
executable_args.push("--log-level".to_string());
let log_level = match log_level {
Level::Debug => "debug",
Level::Info => "info",
_ => {
return Err(Error::new(
ErrorKind::Other,
format!("invalid log level {}", log_level),
))
}
};
executable_args.push(log_level.to_string());
}
}
if flags.unstable {
executable_args.push("--unstable".to_string());
}
executable_args.push(module_url.to_string());
executable_args.extend_from_slice(&args);
generate_executable_file(file_path.to_owned(), executable_args)?;
println!("✅ Successfully installed {}", name);
println!("{}", file_path.to_string_lossy());
let installation_dir_str = installation_dir.to_string_lossy();
if !is_in_path(&installation_dir) {
println!(" Add {} to PATH", installation_dir_str);
if cfg!(windows) {
println!(" set PATH=%PATH%;{}", installation_dir_str);
} else {
println!(" export PATH=\"{}:$PATH\"", installation_dir_str);
}
}
Ok(())
}
fn is_in_path(dir: &PathBuf) -> bool {
if let Some(paths) = env::var_os("PATH") {
for p in env::split_paths(&paths) {
if *dir == p {
return true;
}
}
}
false
}
#[cfg(test)]
mod tests {
use super::*;
use std::sync::Mutex;
use tempfile::TempDir;
lazy_static! {
pub static ref ENV_LOCK: Mutex<()> = Mutex::new(());
}
#[test]
fn test_is_remote_url() {
assert!(is_remote_url("https://deno.land/std/http/file_server.ts"));
assert!(is_remote_url("http://deno.land/std/http/file_server.ts"));
assert!(is_remote_url("HTTP://deno.land/std/http/file_server.ts"));
assert!(is_remote_url("HTTp://deno.land/std/http/file_server.ts"));
assert!(!is_remote_url("file:///dev/deno_std/http/file_server.ts"));
assert!(!is_remote_url("./dev/deno_std/http/file_server.ts"));
}
#[test]
fn install_infer_name_from_url() {
assert_eq!(
infer_name_from_url(
&Url::parse("https://example.com/abc/server.ts").unwrap()
),
Some("server".to_string())
);
assert_eq!(
infer_name_from_url(
&Url::parse("https://example.com/abc/main.ts").unwrap()
),
Some("abc".to_string())
);
assert_eq!(
infer_name_from_url(
&Url::parse("https://example.com/abc/mod.ts").unwrap()
),
Some("abc".to_string())
);
assert_eq!(
infer_name_from_url(
&Url::parse("https://example.com/abc/index.ts").unwrap()
),
Some("abc".to_string())
);
assert_eq!(
infer_name_from_url(
&Url::parse("https://example.com/abc/cli.ts").unwrap()
),
Some("abc".to_string())
);
assert_eq!(
infer_name_from_url(&Url::parse("https://example.com/main.ts").unwrap()),
Some("main".to_string())
);
assert_eq!(
infer_name_from_url(&Url::parse("https://example.com").unwrap()),
None
);
assert_eq!(
infer_name_from_url(&Url::parse("file:///abc/server.ts").unwrap()),
Some("server".to_string())
);
assert_eq!(
infer_name_from_url(&Url::parse("file:///abc/main.ts").unwrap()),
Some("abc".to_string())
);
assert_eq!(
infer_name_from_url(&Url::parse("file:///main.ts").unwrap()),
Some("main".to_string())
);
assert_eq!(infer_name_from_url(&Url::parse("file:///").unwrap()), None);
}
#[test]
fn install_basic() {
let _guard = ENV_LOCK.lock().ok();
let temp_dir = TempDir::new().expect("tempdir fail");
let temp_dir_str = temp_dir.path().to_string_lossy().to_string();
// NOTE: this test overrides environmental variables
// don't add other tests in this file that mess with "HOME" and "USEPROFILE"
// otherwise transient failures are possible because tests are run in parallel.
// It means that other test can override env vars when this test is running.
let original_home = env::var_os("HOME");
let original_user_profile = env::var_os("HOME");
let original_install_root = env::var_os("DENO_INSTALL_ROOT");
env::set_var("HOME", &temp_dir_str);
env::set_var("USERPROFILE", &temp_dir_str);
env::set_var("DENO_INSTALL_ROOT", "");
install(
Flags::default(),
"http://localhost:4545/cli/tests/echo_server.ts",
vec![],
Some("echo_test".to_string()),
None,
false,
)
.expect("Install failed");
let mut file_path = temp_dir.path().join(".deno/bin/echo_test");
if cfg!(windows) {
file_path = file_path.with_extension("cmd");
}
assert!(file_path.exists());
let content = fs::read_to_string(file_path).unwrap();
// It's annoying when shell scripts don't have NL at the end.
assert_eq!(content.chars().last().unwrap(), '\n');
assert!(content
.contains(r#""run" "http://localhost:4545/cli/tests/echo_server.ts""#));
if let Some(home) = original_home {
env::set_var("HOME", home);
}
if let Some(user_profile) = original_user_profile {
env::set_var("USERPROFILE", user_profile);
}
if let Some(install_root) = original_install_root {
env::set_var("DENO_INSTALL_ROOT", install_root);
}
}
#[test]
fn install_unstable() {
let temp_dir = TempDir::new().expect("tempdir fail");
let bin_dir = temp_dir.path().join("bin");
std::fs::create_dir(&bin_dir).unwrap();
install(
Flags {
unstable: true,
..Flags::default()
},
"http://localhost:4545/cli/tests/echo_server.ts",
vec![],
Some("echo_test".to_string()),
Some(temp_dir.path().to_path_buf()),
false,
)
.expect("Install failed");
let mut file_path = bin_dir.join("echo_test");
if cfg!(windows) {
file_path = file_path.with_extension("cmd");
}
assert!(file_path.exists());
let content = fs::read_to_string(file_path).unwrap();
println!("this is the file path {:?}", content);
assert!(content.contains(
r#""run" "--unstable" "http://localhost:4545/cli/tests/echo_server.ts"#
));
}
#[test]
fn install_inferred_name() {
let temp_dir = TempDir::new().expect("tempdir fail");
let bin_dir = temp_dir.path().join("bin");
std::fs::create_dir(&bin_dir).unwrap();
install(
Flags::default(),
"http://localhost:4545/cli/tests/echo_server.ts",
vec![],
None,
Some(temp_dir.path().to_path_buf()),
false,
)
.expect("Install failed");
let mut file_path = bin_dir.join("echo_server");
if cfg!(windows) {
file_path = file_path.with_extension("cmd");
}
assert!(file_path.exists());
let content = fs::read_to_string(file_path).unwrap();
assert!(content
.contains(r#""run" "http://localhost:4545/cli/tests/echo_server.ts""#));
}
#[test]
fn install_inferred_name_from_parent() {
let temp_dir = TempDir::new().expect("tempdir fail");
let bin_dir = temp_dir.path().join("bin");
std::fs::create_dir(&bin_dir).unwrap();
install(
Flags::default(),
"http://localhost:4545/cli/tests/subdir/main.ts",
vec![],
None,
Some(temp_dir.path().to_path_buf()),
false,
)
.expect("Install failed");
let mut file_path = bin_dir.join("subdir");
if cfg!(windows) {
file_path = file_path.with_extension("cmd");
}
assert!(file_path.exists());
let content = fs::read_to_string(file_path).unwrap();
assert!(content
.contains(r#""run" "http://localhost:4545/cli/tests/subdir/main.ts""#));
}
#[test]
fn install_custom_dir_option() {
let temp_dir = TempDir::new().expect("tempdir fail");
let bin_dir = temp_dir.path().join("bin");
std::fs::create_dir(&bin_dir).unwrap();
install(
Flags::default(),
"http://localhost:4545/cli/tests/echo_server.ts",
vec![],
Some("echo_test".to_string()),
Some(temp_dir.path().to_path_buf()),
false,
)
.expect("Install failed");
let mut file_path = bin_dir.join("echo_test");
if cfg!(windows) {
file_path = file_path.with_extension("cmd");
}
assert!(file_path.exists());
let content = fs::read_to_string(file_path).unwrap();
assert!(content
.contains(r#""run" "http://localhost:4545/cli/tests/echo_server.ts""#));
}
#[test]
fn install_custom_dir_env_var() {
let _guard = ENV_LOCK.lock().ok();
let temp_dir = TempDir::new().expect("tempdir fail");
let bin_dir = temp_dir.path().join("bin");
std::fs::create_dir(&bin_dir).unwrap();
let original_install_root = env::var_os("DENO_INSTALL_ROOT");
env::set_var("DENO_INSTALL_ROOT", temp_dir.path().to_path_buf());
install(
Flags::default(),
"http://localhost:4545/cli/tests/echo_server.ts",
vec![],
Some("echo_test".to_string()),
None,
false,
)
.expect("Install failed");
let mut file_path = bin_dir.join("echo_test");
if cfg!(windows) {
file_path = file_path.with_extension("cmd");
}
assert!(file_path.exists());
let content = fs::read_to_string(file_path).unwrap();
assert!(content
.contains(r#""run" "http://localhost:4545/cli/tests/echo_server.ts""#));
if let Some(install_root) = original_install_root {
env::set_var("DENO_INSTALL_ROOT", install_root);
}
}
#[test]
fn install_with_flags() {
let temp_dir = TempDir::new().expect("tempdir fail");
let bin_dir = temp_dir.path().join("bin");
std::fs::create_dir(&bin_dir).unwrap();
install(
Flags {
allow_net: true,
allow_read: true,
log_level: Some(Level::Error),
..Flags::default()
},
"http://localhost:4545/cli/tests/echo_server.ts",
vec!["--foobar".to_string()],
Some("echo_test".to_string()),
Some(temp_dir.path().to_path_buf()),
false,
)
.expect("Install failed");
let mut file_path = bin_dir.join("echo_test");
if cfg!(windows) {
file_path = file_path.with_extension("cmd");
}
assert!(file_path.exists());
let content = fs::read_to_string(file_path).unwrap();
assert!(content.contains(r#""run" "--allow-read" "--allow-net" "--quiet" "http://localhost:4545/cli/tests/echo_server.ts" "--foobar""#));
}
#[test]
fn install_local_module() {
let temp_dir = TempDir::new().expect("tempdir fail");
let bin_dir = temp_dir.path().join("bin");
std::fs::create_dir(&bin_dir).unwrap();
let local_module = env::current_dir().unwrap().join("echo_server.ts");
let local_module_url = Url::from_file_path(&local_module).unwrap();
let local_module_str = local_module.to_string_lossy();
install(
Flags::default(),
&local_module_str,
vec![],
Some("echo_test".to_string()),
Some(temp_dir.path().to_path_buf()),
false,
)
.expect("Install failed");
let mut file_path = bin_dir.join("echo_test");
if cfg!(windows) {
file_path = file_path.with_extension("cmd");
}
assert!(file_path.exists());
let content = fs::read_to_string(file_path).unwrap();
assert!(content.contains(&local_module_url.to_string()));
}
#[test]
fn install_force() {
let temp_dir = TempDir::new().expect("tempdir fail");
let bin_dir = temp_dir.path().join("bin");
std::fs::create_dir(&bin_dir).unwrap();
install(
Flags::default(),
"http://localhost:4545/cli/tests/echo_server.ts",
vec![],
Some("echo_test".to_string()),
Some(temp_dir.path().to_path_buf()),
false,
)
.expect("Install failed");
let mut file_path = bin_dir.join("echo_test");
if cfg!(windows) {
file_path = file_path.with_extension("cmd");
}
assert!(file_path.exists());
// No force. Install failed.
let no_force_result = install(
Flags::default(),
"http://localhost:4545/cli/tests/cat.ts", // using a different URL
vec![],
Some("echo_test".to_string()),
Some(temp_dir.path().to_path_buf()),
false,
);
assert!(no_force_result.is_err());
assert!(no_force_result
.unwrap_err()
.to_string()
.contains("Existing installation found"));
// Assert not modified
let file_content = fs::read_to_string(&file_path).unwrap();
assert!(file_content.contains("echo_server.ts"));
// Force. Install success.
let force_result = install(
Flags::default(),
"http://localhost:4545/cli/tests/cat.ts", // using a different URL
vec![],
Some("echo_test".to_string()),
Some(temp_dir.path().to_path_buf()),
true,
);
assert!(force_result.is_ok());
// Assert modified
let file_content_2 = fs::read_to_string(&file_path).unwrap();
assert!(file_content_2.contains("cat.ts"));
}
}