fork of https://github.com/rustwasm/wasm-pack for the needs of NextGraph.org
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71 lines
2.1 KiB
71 lines
2.1 KiB
//! Utility functions for commands.
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#![allow(clippy::redundant_closure)]
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use failure;
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use std::fs;
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use std::path::{Path, PathBuf};
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use std::time::Duration;
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use walkdir::WalkDir;
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/// If an explicit path is given, then use it, otherwise assume the current
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/// directory is the crate path.
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pub fn get_crate_path(path: Option<PathBuf>) -> Result<PathBuf, failure::Error> {
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match path {
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Some(p) => Ok(p),
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None => find_manifest_from_cwd(),
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}
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}
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/// Search up the path for the manifest file from the current working directory
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/// If we don't find the manifest file then return back the current working directory
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/// to provide the appropriate error
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fn find_manifest_from_cwd() -> Result<PathBuf, failure::Error> {
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let mut parent_path = std::env::current_dir()?;
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let mut manifest_path = parent_path.join("Cargo.toml");
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loop {
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if !manifest_path.is_file() {
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if parent_path.pop() {
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manifest_path = parent_path.join("Cargo.toml");
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} else {
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return Ok(PathBuf::from("."));
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}
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} else {
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return Ok(parent_path);
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}
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}
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}
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/// Construct our `pkg` directory in the crate.
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pub fn create_pkg_dir(out_dir: &Path) -> Result<(), failure::Error> {
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fs::create_dir_all(&out_dir)?;
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fs::write(out_dir.join(".gitignore"), "*")?;
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Ok(())
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}
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/// Locates the pkg directory from a specific path
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/// Returns None if unable to find the 'pkg' directory
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pub fn find_pkg_directory(path: &Path) -> Option<PathBuf> {
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if is_pkg_directory(path) {
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return Some(path.to_owned());
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}
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WalkDir::new(path)
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.into_iter()
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.filter_map(|x| x.ok().map(|e| e.into_path()))
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.find(|x| is_pkg_directory(&x))
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}
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fn is_pkg_directory(path: &Path) -> bool {
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path.exists() && path.is_dir() && path.ends_with("pkg")
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}
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/// Render a `Duration` to a form suitable for display on a console
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pub fn elapsed(duration: Duration) -> String {
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let secs = duration.as_secs();
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if secs >= 60 {
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format!("{}m {:02}s", secs / 60, secs % 60)
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} else {
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format!("{}.{:02}s", secs, duration.subsec_nanos() / 10_000_000)
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}
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}
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