feat(gitea-download): allow anonymous download

resources/com/cadoles/gitea/gitea-download.sh

@@ -5,6 +5,7 @@ set -eo pipefail
 GITEA_DOWNLOAD_PROJECT=${GITEA_DOWNLOAD_PROJECT}
 GITEA_DOWNLOAD_ORG=${GITEA_DOWNLOAD_ORG}
 GITEA_DOWNLOAD_BASE_URL=${GITEA_BASE_URL:-https://forge.cadoles.com}
+GITEA_DOWNLOAD_ANONYMOUS=${GITEA_DOWNLOAD_ANONYMOUS:-no}
 GITEA_DOWNLOAD_USERNAME=${GITEA_DOWNLOAD_USERNAME}
 GITEA_DOWNLOAD_PASSWORD=${GITEA_DOWNLOAD_PASSWORD}
 GITEA_DOWNLOAD_RELEASE_NAME=${GITEA_DOWNLOAD_RELEASE_NAME:-latest}
@@ -52,6 +53,10 @@ function assert_environment {
 }
 
 function ask_credentials {
+    if [ "${GITEA_DOWNLOAD_ANONYMOUS}" == "yes" ]; then
+        return
+    fi
+
     if [ -z "$GITEA_DOWNLOAD_USERNAME" ]; then
         echo -n "Username: "
         read GITEA_DOWNLOAD_USERNAME
@@ -104,11 +109,14 @@ function gitea_api {
     local path=$1
     local args=${@:2}
 
+    if [ "${GITEA_DOWNLOAD_ANONYMOUS}" != 'yes' ]; then
+        args="-u "$GITEA_DOWNLOAD_USERNAME:$GITEA_DOWNLOAD_PASSWORD" ${args}"
+    fi
+
     curl -L \
         --fail \
         --ipv4 \
         -k \
-        -u "$GITEA_DOWNLOAD_USERNAME:$GITEA_DOWNLOAD_PASSWORD" \
         ${args} \
         "$GITEA_DOWNLOAD_BASE_URL/api/v1$path"
 }
@@ -117,11 +125,14 @@ function gitea_download {
     local attachment_id=$1
     local output=$2
 
+    if [ "${GITEA_DOWNLOAD_ANONYMOUS}" != 'yes' ]; then
+        GITEA_DOWNLOAD_CURL_ARGS="-u "$GITEA_DOWNLOAD_USERNAME:$GITEA_DOWNLOAD_PASSWORD" ${GITEA_DOWNLOAD_CURL_ARGS}"
+    fi
+
     curl -L \
         --fail \
         --ipv4 \
         -k \
-        -u "$GITEA_DOWNLOAD_USERNAME:$GITEA_DOWNLOAD_PASSWORD" \
         --output "$output" \
         $GITEA_DOWNLOAD_CURL_ARGS \
         "$GITEA_DOWNLOAD_BASE_URL/attachments/$attachment_id"