automatically find a download program to use

[summon-arm-toolchain.git] / summon-arm-toolchain

diff --git a/summon-arm-toolchain b/summon-arm-toolchain
index 4b901249e49cd735c74cc2a7768c62a1e190babd..cbf50c11f6e743b62176080dd8ef471bf7543b80 100755 (executable)
--- a/summon-arm-toolchain
+++ b/summon-arm-toolchain
@@ -100,43 +100,33 @@ SOURCES=${SUMMON_DIR}/sources
 STAMPS=${SUMMON_DIR}/stamps
 
 
-##############################################################################
-# Tool section
-##############################################################################
-TAR=tar
-
 ##############################################################################
 # OS and Tooldetection section
 # Detects which tools and flags to use
 ##############################################################################
 
-case "$(uname)" in
-       Linux)
-       echo "Found Linux OS."
-       ;;
-       Darwin)
-       echo "Found Darwin OS."
-
-       # darwin dependencies
-       DARWINDEPS="wget"
-
-  echo "Installing dependencies ..."
-  if ! which brew > /dev/null; then
-    echo "Homebrew not installed."
-  else
-      brew install ${DARWINDEPS} | (grep -v '^Warning: Formula already installed: ' || true)
-  fi
+# normalized fetching with whatever we can find
+if which fetch > /dev/null; then
+    FETCHCMD="fetch -p"
+elif which wget > /dev/null; then
+    FETCHCMD=wget
+elif which curl > /dev/null; then
+    FETCHCMD="curl -O"
+else
+    FETCHCMD=ftp    # the only HTTP client on some BSD
+fi
 
+if [ USE_LINARO = 1 ]; then
+    if which gnutar > /dev/null; then
         TAR=gnutar
-       ;;
-       CYGWIN*)
-       echo "Found CygWin that means Windows most likely."
-       ;;
-       *)
-       echo "Found unknown OS. Aborting!"
-       exit 1
-       ;;
-esac
+    elif which gtar > /dev/null; then
+        TAR=gtar
+    else    # hopefully it understands the GNU format
+        TAR=tar
+    fi
+else
+    TAR=tar     # use the system tar
+fi
 
 ##############################################################################
 # Building section
@@ -147,7 +137,7 @@ esac
 fetch() {
     if [ ! -e ${STAMPS}/$1.fetch ]; then
         log "Downloading $1 sources..."
-        wget -c $2
+        ${FETCHCMD} $2
         touch ${STAMPS}/$1.fetch
     fi
 }