releaser: get redirects from files instead of env vars

Signed-off-by: David Karlsson <[email protected]>

Author: dvdksn

_releaser/Dockerfile

@@ -5,7 +5,7 @@ ARG GO_VERSION=1.19
 FROM scratch AS sitedir
 
 FROM golang:${GO_VERSION}-alpine AS base
-RUN apk add --no-cache jq openssl
+RUN apk add --no-cache openssl
 ENV CGO_ENABLED=0
 WORKDIR /src
 COPY go.mod go.sum ./
@@ -49,6 +49,6 @@ RUN --mount=type=bind,target=. \
   --mount=type=secret,id=AWS_SECRET_ACCESS_KEY \
   --mount=type=secret,id=AWS_SESSION_TOKEN \
   AWS_LAMBDA_FUNCTION_FILE=cloudfront-lambda-redirects.js \
-  REDIRECTS_JSON=$(jq -c '.' /site/redirects.json) \
-  REDIRECTS_PREFIXES_JSON=$(jq -c '.' redirects-prefixes.json) \
+  REDIRECTS_FILE="/site/redirects.json" \
+  REDIRECTS_PREFIXES_FILE="redirects-prefixes.json" \
   releaser aws cloudfront-update

_releaser/aws.go

@@ -100,15 +100,15 @@ type AwsCloudfrontUpdateCmd struct {
 	Function              string `kong:"name='lambda-function',env='AWS_LAMBDA_FUNCTION'"`
 	FunctionFile          string `kong:"name='lambda-function-file',env='AWS_LAMBDA_FUNCTION_FILE'"`
 	CloudfrontID          string `kong:"name='cloudfront-id',env='AWS_CLOUDFRONT_ID'"`
-	RedirectsJSON         string `kong:"name='redirects-json',env='REDIRECTS_JSON'"`
-	RedirectsPrefixesJSON string `kong:"name='redirects-prefixes-json',env='REDIRECTS_PREFIXES_JSON'"`
+	RedirectsFile         string `kong:"name='redirects-json',env='REDIRECTS_FILE'"`
+	RedirectsPrefixesFile string `kong:"name='redirects-prefixes-json',env='REDIRECTS_PREFIXES_FILE'"`
 }
 
 func (s *AwsCloudfrontUpdateCmd) Run() error {
 	var err error
 	ver := time.Now().UTC().Format(time.RFC3339)
 
-	zipdt, err := getLambdaFunctionZip(s.FunctionFile, s.RedirectsJSON, s.RedirectsPrefixesJSON)
+	zipdt, err := getLambdaFunctionZip(s.FunctionFile, s.RedirectsFile, s.RedirectsPrefixesFile)
 	if err != nil {
 		return fmt.Errorf("cannot create lambda function zip: %w", err)
 	}
@@ -228,20 +228,29 @@ func (s *AwsCloudfrontUpdateCmd) Run() error {
 	return nil
 }
 
-func getLambdaFunctionZip(funcFilename string, redirectsJSON string, redirectsPrefixesJSON string) ([]byte, error) {
+func getLambdaFunctionZip(funcFilename string, redirectsFile string, redirectsPrefixesFile string) ([]byte, error) {
 	funcdt, err := os.ReadFile(funcFilename)
 	if err != nil {
 		return nil, fmt.Errorf("failed to read lambda function file %q: %w", funcFilename, err)
 	}
 
+	redirects, err := os.ReadFile(redirectsFile)
+	if err != nil {
+		return nil, fmt.Errorf("failed to read redirects file %q: %w", redirectsFile, err)
+	}
+	redirectsPrefixes, err := os.ReadFile(redirectsPrefixesFile)
+	if err != nil {
+		return nil, fmt.Errorf("failed to read lambda function file %q: %w", redirectsPrefixesFile, err)
+	}
+
 	var funcbuf bytes.Buffer
 	functpl := template.Must(template.New("").Parse(string(funcdt)))
 	if err = functpl.Execute(&funcbuf, struct {
 		RedirectsJSON         string
 		RedirectsPrefixesJSON string
 	}{
-		redirectsJSON,
-		redirectsPrefixesJSON,
+		string(redirects),
+		string(redirectsPrefixes),
 	}); err != nil {
 		return nil, err
 	}

layouts/index.redirects.json

@@ -12,4 +12,5 @@
 {{- $redirects.SetInMap "paths" . $target -}}
 {{- end -}}
 {{- end -}}
-{{ $redirects.Get "paths" | jsonify }}
+{{- $opts := dict "noHTMLEscape" true }}
+{{- $redirects.Get "paths" | jsonify $opts }}