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denoland-deno/cli/tools/doc.rs

96 lines
3 KiB
Rust

// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
use crate::args::DocFlags;
use crate::args::Flags;
use crate::colors;
use crate::file_fetcher::File;
use crate::get_types;
use crate::proc_state::ProcState;
use crate::write_json_to_stdout;
use crate::write_to_stdout_ignore_sigpipe;
use deno_ast::MediaType;
use deno_core::anyhow::bail;
use deno_core::error::AnyError;
use deno_core::resolve_url_or_path;
use deno_doc as doc;
use deno_graph::ModuleKind;
use deno_graph::ModuleSpecifier;
use std::path::PathBuf;
pub async fn print_docs(
flags: Flags,
doc_flags: DocFlags,
) -> Result<(), AnyError> {
let ps = ProcState::build(flags).await?;
let source_file = doc_flags
.source_file
.unwrap_or_else(|| "--builtin".to_string());
let source_parser = deno_graph::DefaultSourceParser::new();
let mut doc_nodes = if source_file == "--builtin" {
let source_file_specifier =
ModuleSpecifier::parse("deno://lib.deno.d.ts").unwrap();
let graph = ps
.create_graph(vec![(source_file_specifier.clone(), ModuleKind::Esm)])
.await?;
let doc_parser =
doc::DocParser::new(graph, doc_flags.private, &source_parser);
doc_parser.parse_source(
&source_file_specifier,
MediaType::Dts,
get_types(ps.options.unstable()).into(),
)?
} else {
let module_specifier = resolve_url_or_path(&source_file)?;
// If the root module has external types, the module graph won't redirect it,
// so instead create a dummy file which exports everything from the actual file being documented.
let root_specifier = resolve_url_or_path("./$deno$doc.ts").unwrap();
let root = File {
local: PathBuf::from("./$deno$doc.ts"),
maybe_types: None,
media_type: MediaType::TypeScript,
source: format!("export * from \"{}\";", module_specifier).into(),
specifier: root_specifier.clone(),
maybe_headers: None,
};
// Save our fake file into file fetcher cache.
ps.file_fetcher.insert_cached(root);
let graph = ps
.create_graph(vec![(root_specifier.clone(), ModuleKind::Esm)])
.await?;
let doc_parser =
doc::DocParser::new(graph, doc_flags.private, &source_parser);
doc_parser.parse_with_reexports(&root_specifier)?
};
if doc_flags.json {
write_json_to_stdout(&doc_nodes)
} else {
doc_nodes.retain(|doc_node| doc_node.kind != doc::DocNodeKind::Import);
let details = if let Some(filter) = doc_flags.filter {
let nodes =
doc::find_nodes_by_name_recursively(doc_nodes, filter.clone());
if nodes.is_empty() {
bail!("Node {} was not found!", filter);
}
format!(
"{}",
doc::DocPrinter::new(&nodes, colors::use_color(), doc_flags.private)
)
} else {
format!(
"{}",
doc::DocPrinter::new(
&doc_nodes,
colors::use_color(),
doc_flags.private
)
)
};
write_to_stdout_ignore_sigpipe(details.as_bytes()).map_err(AnyError::from)
}
}