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55 lines
1.8 KiB
Rust
55 lines
1.8 KiB
Rust
use super::Segment;
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use ansi_term::Color;
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use clap::ArgMatches;
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use std::env;
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use std::fs::{self, DirEntry};
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use std::process::Command;
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/// Creates a segment with the current Node.js version
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///
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/// Will display the Node.js version if any of the following criteria are met:
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/// - Current directory contains a `.js` file
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/// - Current directory contains a `node_modules` directory
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/// - Current directory contains a `package.json` file
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pub fn segment(_: &ArgMatches) -> Option<Segment> {
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const NODE_CHAR: &str = "⬢";
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const SECTION_COLOR: Color = Color::Green;
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let mut segment = Segment::new("node");
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let current_path = env::current_dir().expect("Unable to identify current directory");
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let files = fs::read_dir(¤t_path).unwrap();
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// Early return if there are no JS project files
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let is_js_project = files.filter_map(Result::ok).any(has_js_files);
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if !is_js_project {
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return None;
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}
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match Command::new("node").arg("--version").output() {
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Ok(output) => {
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let version = String::from_utf8(output.stdout).unwrap();
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segment.set_value(format!("{} {}", NODE_CHAR, version.trim()))
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}
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Err(_) => {
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return None;
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}
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};
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segment.set_style(SECTION_COLOR);
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Some(segment)
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}
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fn has_js_files(dir_entry: DirEntry) -> bool {
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let is_js_file = |d: &DirEntry| -> bool {
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d.path().is_file() && d.path().extension().unwrap_or_default() == "js"
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};
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let is_node_modules = |d: &DirEntry| -> bool {
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d.path().is_dir() && d.path().file_name().unwrap_or_default() == "node_modules"
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};
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let is_package_json = |d: &DirEntry| -> bool {
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d.path().is_file() && d.path().file_name().unwrap_or_default() == "package.json"
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};
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is_js_file(&dir_entry) || is_node_modules(&dir_entry) || is_package_json(&dir_entry)
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}
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