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### What Skip writing files from the template if the files already exist in the project directory. ### Why When I run deno init in a directory that already has a main.ts, or one of the other template files, I usually want to initialize a workspace around a file I've started working in. A hard error in this case seems counter productive. An informational message about what's being skipped seems sufficient. Close #20433
74 lines
2 KiB
Rust
74 lines
2 KiB
Rust
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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use crate::args::InitFlags;
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use crate::colors;
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use crate::deno_std;
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use deno_core::anyhow::Context;
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use deno_core::error::AnyError;
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use log::info;
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use std::io::Write;
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use std::path::Path;
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fn create_file(
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dir: &Path,
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filename: &str,
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content: &str,
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) -> Result<(), AnyError> {
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let path = dir.join(filename);
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if path.exists() {
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info!(
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"ℹ️ {}",
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colors::gray(format!("Skipped creating {filename} as it already exists"))
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);
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Ok(())
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} else {
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let mut file = std::fs::OpenOptions::new()
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.write(true)
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.create_new(true)
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.open(path)
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.with_context(|| format!("Failed to create {filename} file"))?;
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file.write_all(content.as_bytes())?;
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Ok(())
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}
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}
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pub async fn init_project(init_flags: InitFlags) -> Result<(), AnyError> {
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let cwd =
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std::env::current_dir().context("Can't read current working directory.")?;
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let dir = if let Some(dir) = &init_flags.dir {
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let dir = cwd.join(dir);
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std::fs::create_dir_all(&dir)?;
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dir
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} else {
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cwd
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};
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let main_ts = include_str!("./templates/main.ts");
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create_file(&dir, "main.ts", main_ts)?;
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let main_test_ts = include_str!("./templates/main_test.ts")
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.replace("{CURRENT_STD_URL}", deno_std::CURRENT_STD_URL_STR);
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create_file(&dir, "main_test.ts", &main_test_ts)?;
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create_file(&dir, "deno.json", include_str!("./templates/deno.json"))?;
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info!("✅ {}", colors::green("Project initialized"));
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info!("");
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info!("{}", colors::gray("Run these commands to get started"));
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info!("");
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if let Some(dir) = init_flags.dir {
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info!(" cd {}", dir);
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info!("");
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}
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info!(" {}", colors::gray("# Run the program"));
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info!(" deno run main.ts");
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info!("");
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info!(
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" {}",
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colors::gray("# Run the program and watch for file changes")
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);
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info!(" deno task dev");
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info!("");
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info!(" {}", colors::gray("# Run the tests"));
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info!(" deno test");
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Ok(())
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}
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