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use std::{
io::{self},
path::{Path, PathBuf},
process::{Command, Stdio},
};
use super::resource_dir::ResourceDir;
#[cfg(not(windows))]
const NPM_CMD: &str = "npm";
#[cfg(windows)]
const NPM_CMD: &str = "npm.cmd";
pub fn npm_resource_dir<P: AsRef<Path>>(resource_dir: P) -> io::Result<ResourceDir> {
let mut npm_build = NpmBuild::new(resource_dir).install()?;
#[cfg(feature = "change-detection")]
{
npm_build = npm_build.change_detection();
}
Ok(npm_build.into())
}
#[derive(Default, Debug)]
pub struct NpmBuild {
package_json_dir: PathBuf,
executable: String,
target_dir: Option<PathBuf>,
stderr: Option<Stdio>,
stdout: Option<Stdio>,
}
impl NpmBuild {
pub fn new<P: AsRef<Path>>(package_json_dir: P) -> Self {
Self {
package_json_dir: package_json_dir.as_ref().into(),
executable: String::from(NPM_CMD),
..Default::default()
}
}
pub fn executable(self, executable: &str) -> Self {
let executable = String::from(executable);
Self { executable, ..self }
}
#[cfg(feature = "change-detection")]
pub fn change_detection(self) -> Self {
use ::change_detection::{
path_matchers::{any, equal, func, starts_with, PathMatcherExt},
ChangeDetection,
};
let package_json_dir = self.package_json_dir.clone();
let default_exclude_filter = any!(
equal(package_json_dir.clone()),
starts_with(self.package_json_dir.join("node_modules")),
equal(self.package_json_dir.join("package.json")),
equal(self.package_json_dir.join("package-lock.json")),
func(move |p| { p.is_file() && p.parent() != Some(package_json_dir.as_path()) })
);
{
let change_detection = if self.target_dir.is_none() {
ChangeDetection::exclude(default_exclude_filter)
} else {
let mut target_dir = self.target_dir.clone().unwrap();
if let Some(target_dir_parent) = target_dir.parent() {
if target_dir_parent.starts_with(&self.package_json_dir) {
while target_dir.parent() != Some(&self.package_json_dir) {
target_dir = target_dir.parent().unwrap().into();
}
}
}
let exclude_filter = default_exclude_filter.or(starts_with(target_dir));
ChangeDetection::exclude(exclude_filter)
};
change_detection.path(&self.package_json_dir).generate();
}
self
}
pub fn install(mut self) -> io::Result<Self> {
self.package_command()
.arg("install")
.status()
.map_err(|err| {
eprintln!("Cannot execute {} install: {:?}", &self.executable, err);
err
})
.map(|_| self)
}
pub fn run(mut self, cmd: &str) -> io::Result<Self> {
self.package_command()
.arg("run")
.arg(cmd)
.status()
.map_err(|err| {
eprintln!("Cannot execute {} run {}: {:?}", &self.executable, cmd, err);
err
})
.map(|_| self)
}
pub fn target<P: AsRef<Path>>(mut self, target_dir: P) -> Self {
self.target_dir = Some(target_dir.as_ref().into());
self
}
pub fn stderr<S: Into<Stdio>>(mut self, stdio: S) -> Self {
self.stderr = Some(stdio.into());
self
}
pub fn stdout<S: Into<Stdio>>(mut self, stdio: S) -> Self {
self.stdout = Some(stdio.into());
self
}
pub fn to_resource_dir(self) -> ResourceDir {
self.into()
}
#[cfg(not(windows))]
fn command(&self) -> Command {
Command::new(&self.executable)
}
#[cfg(windows)]
fn command(&self) -> Command {
let mut cmd = Command::new("cmd");
cmd.arg("/c").arg(&self.executable);
cmd
}
fn package_command(&mut self) -> Command {
let mut cmd = self.command();
cmd.stderr(self.stderr.take().unwrap_or_else(|| Stdio::inherit()))
.stdout(self.stdout.take().unwrap_or_else(|| Stdio::inherit()))
.current_dir(&self.package_json_dir);
cmd
}
}
impl From<NpmBuild> for ResourceDir {
fn from(mut npm_build: NpmBuild) -> Self {
Self {
resource_dir: npm_build
.target_dir
.take()
.unwrap_or_else(|| npm_build.package_json_dir.join("node_modules")),
..Default::default()
}
}
}