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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
use std::path::Path;
use std::path::PathBuf;
use deno_core::anyhow::bail;
use deno_core::anyhow::Context;
use deno_core::error::AnyError;
use deno_core::resolve_url_or_path;
use deno_runtime::permissions::Permissions;
use crate::flags::VendorFlags;
use crate::fs_util;
use crate::lockfile;
use crate::proc_state::ProcState;
use crate::resolver::ImportMapResolver;
use crate::resolver::JsxResolver;
use crate::tools::vendor::specifiers::is_remote_specifier_text;
mod analyze;
mod build;
mod import_map;
mod mappings;
mod specifiers;
#[cfg(test)]
mod test;
pub async fn vendor(ps: ProcState, flags: VendorFlags) -> Result<(), AnyError> {
let raw_output_dir = match &flags.output_path {
Some(output_path) => output_path.to_owned(),
None => PathBuf::from("vendor/"),
};
let output_dir = fs_util::resolve_from_cwd(&raw_output_dir)?;
validate_output_dir(&output_dir, &flags, &ps)?;
let graph = create_graph(&ps, &flags).await?;
let vendored_count =
build::build(&graph, &output_dir, &build::RealVendorEnvironment)?;
eprintln!(
r#"Vendored {} {} into {} directory.
To use vendored modules, specify the `--import-map` flag when invoking deno subcommands:
deno run -A --import-map {} {}"#,
vendored_count,
if vendored_count == 1 {
"module"
} else {
"modules"
},
raw_output_dir.display(),
raw_output_dir.join("import_map.json").display(),
flags
.specifiers
.iter()
.map(|s| s.as_str())
.find(|s| !is_remote_specifier_text(s))
.unwrap_or("main.ts"),
);
Ok(())
}
fn validate_output_dir(
output_dir: &Path,
flags: &VendorFlags,
ps: &ProcState,
) -> Result<(), AnyError> {
if !flags.force && !is_dir_empty(output_dir)? {
bail!(concat!(
"Output directory was not empty. Please specify an empty directory or use ",
"--force to ignore this error and potentially overwrite its contents.",
));
}
// check the import map
if let Some(import_map_path) = ps
.maybe_import_map
.as_ref()
.and_then(|m| m.base_url().to_file_path().ok())
.and_then(|p| fs_util::canonicalize_path(&p).ok())
{
// make the output directory in order to canonicalize it for the check below
std::fs::create_dir_all(&output_dir)?;
let output_dir =
fs_util::canonicalize_path(output_dir).with_context(|| {
format!("Failed to canonicalize: {}", output_dir.display())
})?;
if import_map_path.starts_with(&output_dir) {
// We don't allow using the output directory to help generate the new state
// of itself because supporting this scenario adds a lot of complexity.
bail!(
"Using an import map found in the output directory is not supported."
);
}
}
Ok(())
}
fn is_dir_empty(dir_path: &Path) -> Result<bool, AnyError> {
match std::fs::read_dir(&dir_path) {
Ok(mut dir) => Ok(dir.next().is_none()),
Err(err) if err.kind() == std::io::ErrorKind::NotFound => Ok(true),
Err(err) => {
bail!("Error reading directory {}: {}", dir_path.display(), err)
}
}
}
async fn create_graph(
ps: &ProcState,
flags: &VendorFlags,
) -> Result<deno_graph::ModuleGraph, AnyError> {
let entry_points = flags
.specifiers
.iter()
.map(|p| {
let url = resolve_url_or_path(p)?;
Ok((url, deno_graph::ModuleKind::Esm))
})
.collect::<Result<Vec<_>, AnyError>>()?;
// todo(dsherret): there is a lot of copy and paste here from
// other parts of the codebase. We should consolidate this.
let mut cache = crate::cache::FetchCacher::new(
ps.dir.gen_cache.clone(),
ps.file_fetcher.clone(),
Permissions::allow_all(),
Permissions::allow_all(),
);
let maybe_locker = lockfile::as_maybe_locker(ps.lockfile.clone());
let maybe_imports = if let Some(config_file) = &ps.maybe_config_file {
config_file.to_maybe_imports()?
} else {
None
};
let maybe_import_map_resolver =
ps.maybe_import_map.clone().map(ImportMapResolver::new);
let maybe_jsx_resolver = ps.maybe_config_file.as_ref().and_then(|cf| {
cf.to_maybe_jsx_import_source_module()
.map(|im| JsxResolver::new(im, maybe_import_map_resolver.clone()))
});
let maybe_resolver = if maybe_jsx_resolver.is_some() {
maybe_jsx_resolver.as_ref().map(|jr| jr.as_resolver())
} else {
maybe_import_map_resolver
.as_ref()
.map(|im| im.as_resolver())
};
let graph = deno_graph::create_graph(
entry_points,
false,
maybe_imports,
&mut cache,
maybe_resolver,
maybe_locker,
None,
None,
)
.await;
graph.lock()?;
graph.valid()?;
Ok(graph)
}
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