From 3cf4cf4b1649e5b561b392930a9277cbd36c5566 Mon Sep 17 00:00:00 2001
From: merakor <cem@ckyln.com>
Date: Sat, 24 Jul 2021 20:37:51 +0000
Subject: pkg_download: new function for using alternative downloaders

FossilOrigin-Name: a64a103f527bb5cd45b1e63cf1f8488a220222044c6f0c012f6947ae4abe3e40
---
 src/cpt-lib.in | 28 ++++++++++++++++++++++++----
 1 file changed, 24 insertions(+), 4 deletions(-)

diff --git a/src/cpt-lib.in b/src/cpt-lib.in
index 306c5bd..504829d 100644
--- a/src/cpt-lib.in
+++ b/src/cpt-lib.in
@@ -419,6 +419,21 @@ regesc() {
     sed 's|\\|\\\\|g;s|\[|\\[|g;s|\$|\\$|g;s|\.|\\.|g;s|\*|\\*|g;s|\^|\\^|g'
 }
 
+pkg_download() {
+    # $1: URL
+    # $2: Output (Optional)
+    set -- "$1" "${2:-${1##*/}}"
+    case ${dl_prog##*/} in
+        aria2c|axel) set -- -o "$2" "$1"   ;;
+        curl)        set -- -fLo "$2" "$1" ;;
+        wget|wget2)  set -- -O "$2" "$1"   ;;
+    esac
+
+    "$dl_prog" "$@" || {
+        rm -f "$2"
+        return 1
+    }
+}
 
 prompt() {
     # If a CPT_NOPROMPT variable is set, continue.
@@ -688,10 +703,8 @@ pkg_sources() {
             # interrupt, we handle this ourselves.
             trap_set handle-int
 
-            curl "$src" -fLo "${src##*/}" || {
-                rm -f "${src##*/}"
-                die "$1" "Failed to download $src"
-            }
+            # Download the source
+            pkg_download "$src" || die "$1" "Failed to download $src"
 
             # Restore original trap value.
             trap_set cleanup
@@ -2117,6 +2130,13 @@ create_cache() {
                command -v llvm-readelf  ||
                command -v eu-readelf)"} || elf_prog=ldd
 
+    dl_prog=${CPT_DOWNLOADER:="$(
+              command -v curl   ||
+              command -v wget   ||
+              command -v wget2  ||
+              command -v axel   ||
+              command -v aria2c)"} || dl_prog=curl
+
     # Make note of the user's current ID to do root checks later on.
     # This is used enough to warrant a place here.
     uid=$(id -u)
-- 
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