internal/pkg: pass context to file cure

This removes the left over embedded contexts.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/pkg/net.go

@@ -12,8 +12,6 @@ import (
 // hardcoded as [http.MethodGet]. Request body is not allowed because it cannot
 // be deterministically represented by Params.
 type httpArtifact struct {
-	// Caller-supplied context.
-	ctx context.Context
 	// Caller-supplied url string.
 	url string
 
@@ -36,18 +34,14 @@ var _ KnownChecksum = new(httpArtifact)
 // NewHTTPGet returns a new [File] backed by the supplied client. A GET request
 // is set up for url. If c is nil, [http.DefaultClient] is used instead.
 func NewHTTPGet(
-	ctx context.Context,
 	c *http.Client,
 	url string,
 	checksum Checksum,
 ) File {
-	if ctx == nil {
-		ctx = context.Background()
-	}
 	if c == nil {
 		c = http.DefaultClient
 	}
-	return &httpArtifact{ctx: ctx, url: url, checksum: checksum, doFunc: c.Do}
+	return &httpArtifact{url: url, checksum: checksum, doFunc: c.Do}
 }
 
 // Kind returns the hardcoded [Kind] constant.
@@ -73,9 +67,9 @@ func (e ResponseStatusError) Error() string {
 
 // do sends the caller-supplied request on the caller-supplied [http.Client]
 // and reads its response body to EOF and returns the resulting bytes.
-func (a *httpArtifact) do() (data []byte, err error) {
+func (a *httpArtifact) do(ctx context.Context) (data []byte, err error) {
 	var req *http.Request
-	req, err = http.NewRequestWithContext(a.ctx, http.MethodGet, a.url, nil)
+	req, err = http.NewRequestWithContext(ctx, http.MethodGet, a.url, nil)
 	if err != nil {
 		return
 	}
@@ -101,7 +95,7 @@ func (a *httpArtifact) do() (data []byte, err error) {
 
 // Cure completes the http request and returns the resulting response body read
 // to EOF. Data does not interact with the filesystem.
-func (a *httpArtifact) Cure() (data []byte, err error) {
+func (a *httpArtifact) Cure(ctx context.Context) (data []byte, err error) {
 	a.mu.Lock()
 	defer a.mu.Unlock()
 
@@ -110,7 +104,7 @@ func (a *httpArtifact) Cure() (data []byte, err error) {
 		return a.data, nil
 	}
 
-	if data, err = a.do(); err != nil {
+	if data, err = a.do(ctx); err != nil {
 		return
 	}