use deno_core::error::AnyError;
use deno_core::serde_json;
use deno_core::url::Url;
use deno_runtime::permissions::PermissionsContainer;
use import_map::ImportMap;
use import_map::ImportMapDiagnostic;
use log::warn;
use super::ConfigFile;
use crate::file_fetcher::FileFetcher;
pub async fn resolve_import_map_from_specifier(
specifier: &Url,
maybe_config_file: Option<&ConfigFile>,
file_fetcher: &FileFetcher,
) -> Result<ImportMap, AnyError> {
let value: serde_json::Value = if specifier.scheme() == "data" {
let data_url_text =
deno_graph::source::RawDataUrl::parse(specifier)?.decode()?;
serde_json::from_str(&data_url_text)?
} else {
let import_map_config = maybe_config_file
.as_ref()
.filter(|c| c.specifier == *specifier);
match import_map_config {
Some(config) => config.to_import_map_value(),
None => {
let file = file_fetcher
.fetch(specifier, PermissionsContainer::allow_all())
.await?
.into_text_decoded()?;
serde_json::from_str(&file.source)?
}
}
};
import_map_from_value(specifier, value)
}
pub fn import_map_from_value(
specifier: &Url,
json_value: serde_json::Value,
) -> Result<ImportMap, AnyError> {
debug_assert!(
!specifier.as_str().contains("../"),
"Import map specifier incorrectly contained ../: {}",
specifier.as_str()
);
let result = import_map::parse_from_value(specifier, json_value)?;
print_import_map_diagnostics(&result.diagnostics);
Ok(result.import_map)
}
fn print_import_map_diagnostics(diagnostics: &[ImportMapDiagnostic]) {
if !diagnostics.is_empty() {
warn!(
"Import map diagnostics:\n{}",
diagnostics
.iter()
.map(|d| format!(" - {d}"))
.collect::<Vec<_>>()
.join("\n")
);
}
}