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https://github.com/denoland/deno.git
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64 lines
1.8 KiB
Rust
64 lines
1.8 KiB
Rust
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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use deno_core::error::AnyError;
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use deno_core::serde_json;
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use deno_core::url::Url;
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use deno_runtime::permissions::PermissionsContainer;
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use import_map::ImportMap;
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use import_map::ImportMapDiagnostic;
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use log::warn;
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use super::ConfigFile;
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use crate::file_fetcher::get_source_from_data_url;
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use crate::file_fetcher::FileFetcher;
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pub async fn resolve_import_map_from_specifier(
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specifier: &Url,
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maybe_config_file: Option<&ConfigFile>,
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file_fetcher: &FileFetcher,
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) -> Result<ImportMap, AnyError> {
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let value: serde_json::Value = if specifier.scheme() == "data" {
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serde_json::from_str(&get_source_from_data_url(specifier)?.0)?
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} else {
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let import_map_config = maybe_config_file
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.as_ref()
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.filter(|c| c.specifier == *specifier);
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match import_map_config {
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Some(config) => config.to_import_map_value(),
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None => {
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let file = file_fetcher
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.fetch(specifier, PermissionsContainer::allow_all())
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.await?;
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serde_json::from_str(&file.source)?
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}
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}
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};
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import_map_from_value(specifier, value)
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}
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fn import_map_from_value(
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specifier: &Url,
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json_value: serde_json::Value,
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) -> Result<ImportMap, AnyError> {
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debug_assert!(
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!specifier.as_str().contains("../"),
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"Import map specifier incorrectly contained ../: {}",
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specifier.as_str()
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);
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let result = import_map::parse_from_value(specifier, json_value)?;
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print_import_map_diagnostics(&result.diagnostics);
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Ok(result.import_map)
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}
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fn print_import_map_diagnostics(diagnostics: &[ImportMapDiagnostic]) {
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if !diagnostics.is_empty() {
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warn!(
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"Import map diagnostics:\n{}",
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diagnostics
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.iter()
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.map(|d| format!(" - {d}"))
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.collect::<Vec<_>>()
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.join("\n")
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);
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}
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}
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