fix: add resume capability and retry logic to wget downloads

Replace -nc flag with -c to enable resuming partial downloads.
Add -t 10 (retries) and -T 30 (timeout) for better stability.
Prevents broken partial downloads from blocking subsequent attempts.

Author: sohal

bootstrap-atfe21.1.sh

@@ -12,14 +12,14 @@ ARCH_SUFFIX="Linux-x86_64"
 function downloadAndExtract {
     FILE_TO_DOWNLOAD=$1
     BASE_URL="https://github.com/arm/arm-toolchain/releases/download/release-${ATFE_VERSION}-ATfE/"
-    WGET_FLAGS="-q --show-progress"
+    WGET_FLAGS="-q --show-progress -c -t 10 -T 30"
     if [ "$ALLOW_INSECURE_DOWNLOAD" == "true" ]; then
         WGET_FLAGS="$WGET_FLAGS --no-check-certificate"
     fi
 
     mkdir -p $DOWNLOAD_DIR
     echo "Downloading $FILE_TO_DOWNLOAD..."
-    wget -nc "$BASE_URL$FILE_TO_DOWNLOAD" -O "$DOWNLOAD_DIR/$FILE_TO_DOWNLOAD" $WGET_FLAGS
+    wget "$BASE_URL$FILE_TO_DOWNLOAD" -O "$DOWNLOAD_DIR/$FILE_TO_DOWNLOAD" $WGET_FLAGS
 
     if [ $? -ne 0 ]; then
         echo "Failed to download $FILE_TO_DOWNLOAD" >&2
@@ -29,7 +29,7 @@ function downloadAndExtract {
     # Also download the SHA256 checksum file
     SHA256_FILE="${FILE_TO_DOWNLOAD}.sha256"
     echo "Downloading checksum file..."
-    wget -nc "$BASE_URL$SHA256_FILE" -O "$DOWNLOAD_DIR/$SHA256_FILE" $WGET_FLAGS
+    wget "$BASE_URL$SHA256_FILE" -O "$DOWNLOAD_DIR/$SHA256_FILE" $WGET_FLAGS
 
     if [ $? -ne 0 ]; then
         echo "Failed to download $SHA256_FILE" >&2
@@ -58,14 +58,14 @@ function downloadAndExtract {
 function downloadAndExtractOverlay {
     FILE_TO_DOWNLOAD=$1
     BASE_URL="https://github.com/arm/arm-toolchain/releases/download/release-${ATFE_VERSION}-ATfE/"
-    WGET_FLAGS="-q --show-progress"
+    WGET_FLAGS="-q --show-progress -c -t 10 -T 30"
     if [ "$ALLOW_INSECURE_DOWNLOAD" == "true" ]; then
         WGET_FLAGS="$WGET_FLAGS --no-check-certificate"
     fi
 
     mkdir -p $DOWNLOAD_DIR
     echo "Downloading overlay $FILE_TO_DOWNLOAD..."
-    wget -nc "$BASE_URL$FILE_TO_DOWNLOAD" -O "$DOWNLOAD_DIR/$FILE_TO_DOWNLOAD" $WGET_FLAGS
+    wget "$BASE_URL$FILE_TO_DOWNLOAD" -O "$DOWNLOAD_DIR/$FILE_TO_DOWNLOAD" $WGET_FLAGS
 
     if [ $? -ne 0 ]; then
         echo "Failed to download overlay $FILE_TO_DOWNLOAD" >&2
@@ -75,7 +75,7 @@ function downloadAndExtractOverlay {
     # Download overlay checksum
     SHA256_FILE="${FILE_TO_DOWNLOAD}.sha256"
     echo "Downloading overlay checksum file..."
-    wget -nc "$BASE_URL$SHA256_FILE" -O "$DOWNLOAD_DIR/$SHA256_FILE" $WGET_FLAGS
+    wget "$BASE_URL$SHA256_FILE" -O "$DOWNLOAD_DIR/$SHA256_FILE" $WGET_FLAGS
 
     if [ $? -ne 0 ]; then
         echo "Failed to download overlay $SHA256_FILE" >&2

bootstrap-gnuarm14.3.sh

@@ -12,14 +12,14 @@ ARCH_SUFFIX="x86_64"
 function downloadAndExtract {
     FILE_TO_DOWNLOAD=$1
     BASE_URL="https://developer.arm.com/-/media/Files/downloads/gnu/${ARM_GCC_VERSION}/binrel/"
-    WGET_FLAGS="-q --show-progress"
+    WGET_FLAGS="-q --show-progress -c -t 10 -T 30"
     if [ "$ALLOW_INSECURE_DOWNLOAD" == "true" ]; then
         WGET_FLAGS="$WGET_FLAGS --no-check-certificate"
     fi
 
     mkdir -p $DOWNLOAD_DIR
     echo "Downloading $FILE_TO_DOWNLOAD..."
-    wget -nc "$BASE_URL$FILE_TO_DOWNLOAD" -O "$DOWNLOAD_DIR/$FILE_TO_DOWNLOAD" $WGET_FLAGS
+    wget "$BASE_URL$FILE_TO_DOWNLOAD" -O "$DOWNLOAD_DIR/$FILE_TO_DOWNLOAD" $WGET_FLAGS
 
     if [ $? -ne 0 ]; then
         echo "Failed to download $FILE_TO_DOWNLOAD" >&2

stm32-tools.sh

@@ -66,8 +66,8 @@ install_gnu_arm() {
     cd "$TEMP_DIR"
 
     print_info "Downloading GNU Arm Toolchain 14.3 (~500MB)..."
-    wget https://developer.arm.com/-/media/Files/downloads/gnu/14.3.rel1/binrel/arm-gnu-toolchain-14.3.rel1-x86_64-arm-none-eabi.tar.xz
-    wget https://developer.arm.com/-/media/Files/downloads/gnu/14.3.rel1/binrel/arm-gnu-toolchain-14.3.rel1-x86_64-arm-none-eabi.tar.xz.sha256asc
+    wget -c -t 10 -T 30 https://developer.arm.com/-/media/Files/downloads/gnu/14.3.rel1/binrel/arm-gnu-toolchain-14.3.rel1-x86_64-arm-none-eabi.tar.xz
+    wget -c -t 10 -T 30 https://developer.arm.com/-/media/Files/downloads/gnu/14.3.rel1/binrel/arm-gnu-toolchain-14.3.rel1-x86_64-arm-none-eabi.tar.xz.sha256asc
 
     print_info "Verifying download..."
     sha256sum -c arm-gnu-toolchain-14.3.rel1-x86_64-arm-none-eabi.tar.xz.sha256asc
@@ -99,8 +99,8 @@ install_arm_atfe() {
     cd "$TEMP_DIR"
 
     print_info "Downloading ATFE 21.1 (~3GB)..."
-    wget https://github.com/arm/arm-toolchain/releases/download/release-21.1.1-ATfE/ATfE-21.1.1-Linux-x86_64.tar.xz
-    wget https://github.com/arm/arm-toolchain/releases/download/release-21.1.1-ATfE/ATfE-21.1.1-Linux-x86_64.tar.xz.sha256
+    wget -c -t 10 -T 30 https://github.com/arm/arm-toolchain/releases/download/release-21.1.1-ATfE/ATfE-21.1.1-Linux-x86_64.tar.xz
+    wget -c -t 10 -T 30 https://github.com/arm/arm-toolchain/releases/download/release-21.1.1-ATfE/ATfE-21.1.1-Linux-x86_64.tar.xz.sha256
 
     print_info "Verifying download..."
     sha256sum -c ATfE-21.1.1-Linux-x86_64.tar.xz.sha256
@@ -109,8 +109,8 @@ install_arm_atfe() {
     tar -xf ATfE-21.1.1-Linux-x86_64.tar.xz -C "$TOOLCHAIN_DIR"
 
     print_info "Downloading ATFE newlib overlay..."
-    wget https://github.com/arm/arm-toolchain/releases/download/release-21.1.1-ATfE/ATfE-newlib-overlay-21.1.1.tar.xz
-    wget https://github.com/arm/arm-toolchain/releases/download/release-21.1.1-ATfE/ATfE-newlib-overlay-21.1.1.tar.xz.sha256
+    wget -c -t 10 -T 30 https://github.com/arm/arm-toolchain/releases/download/release-21.1.1-ATfE/ATfE-newlib-overlay-21.1.1.tar.xz
+    wget -c -t 10 -T 30 https://github.com/arm/arm-toolchain/releases/download/release-21.1.1-ATfE/ATfE-newlib-overlay-21.1.1.tar.xz.sha256
 
     print_info "Verifying overlay..."
     sha256sum -c ATfE-newlib-overlay-21.1.1.tar.xz.sha256