From 6fad2ae94bfb9beb2cb9a9f6e32b895de341285e Mon Sep 17 00:00:00 2001
From: Yegor Timoshenko <yegortimoshenko@riseup.net>
Date: Sat, 13 Oct 2018 16:48:43 +0000
Subject: [PATCH] fetchurl: warn on rev archives, resolves #32999

---
 pkgs/build-support/fetchurl/builder.sh | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/pkgs/build-support/fetchurl/builder.sh b/pkgs/build-support/fetchurl/builder.sh
index f9bc8b602f4..74fdc320835 100644
--- a/pkgs/build-support/fetchurl/builder.sh
+++ b/pkgs/build-support/fetchurl/builder.sh
@@ -118,7 +118,6 @@ if test -n "$showURLs"; then
     exit 0
 fi
 
-
 if test -n "$preferHashedMirrors"; then
     tryHashedMirrors
 fi
@@ -128,6 +127,16 @@ set -o noglob
 
 success=
 for url in $urls; do
+    if [ -z "$postFetch" ]; then
+       case "$url" in
+           https://github.com/*/archive/*)
+               echo "warning: archives from GitHub revisions should use fetchFromGitHub"
+               ;;
+           https://gitlab.com/*/-/archive/*)
+               echo "warning: archives from GitLab revisions should use fetchFromGitLab"
+               ;;
+       esac
+    fi
     tryDownload "$url"
     if test -n "$success"; then finish; fi
 done