fix: enforce 'jsr:' prefix for import specifiers

eser · eser · commit 51a9ce59a532 · 2025-11-01T12:51:49.000+03:00
Also replaces String.prototype.substr with #slice as the API is considered legacy.
diff --git a/lib/npa.js b/lib/npa.js
@@ -82,7 +82,7 @@ function isJsrSpec (spec) {
   if (!spec) {
     return false
   }
-  return spec.toLowerCase().startsWith('jsr:')
+  return spec.startsWith('jsr:')
 }
 
 function resolve (name, spec, where, arg) {
@@ -464,7 +464,7 @@ function fromAlias (res, where) {
 
 function fromJsr (res, where) {
   // Remove 'jsr:' prefix
-  const jsrSpec = res.rawSpec.substr(4)
+  const jsrSpec = res.rawSpec.slice(4)
 
   // Parse the JSR specifier to extract name and version
   // JSR format: @scope/name or @scope/name@version

Original file line number	Diff line number	Diff line change
`@@ -82,7 +82,7 @@ function isJsrSpec (spec) {`
`82`	`82`	`if (!spec) {`
`83`	`83`	`return false`
`84`	`84`	`}`
`85`		`- return spec.toLowerCase().startsWith('jsr:')`
	`85`	`+ return spec.startsWith('jsr:')`
`86`	`86`	`}`
`87`	`87`
`88`	`88`	`function resolve (name, spec, where, arg) {`
`@@ -464,7 +464,7 @@ function fromAlias (res, where) {`
`464`	`464`
`465`	`465`	`function fromJsr (res, where) {`
`466`	`466`	`// Remove 'jsr:' prefix`
`467`		`- const jsrSpec = res.rawSpec.substr(4)`
	`467`	`+ const jsrSpec = res.rawSpec.slice(4)`
`468`	`468`
`469`	`469`	`// Parse the JSR specifier to extract name and version`
`470`	`470`	`// JSR format: @scope/name or @scope/name@version`