Decompose common dev_bundle build logic and variables.

Author: Ben Newman

scripts/build-dev-bundle-common.sh

@@ -0,0 +1,62 @@
+#!/usr/bin/env bash
+
+set -e
+set -u
+
+UNAME=$(uname)
+ARCH=$(uname -m)
+
+if [ "$UNAME" == "Linux" ] ; then
+    if [ "$ARCH" != "i686" -a "$ARCH" != "x86_64" ] ; then
+        echo "Unsupported architecture: $ARCH"
+        echo "Meteor only supports i686 and x86_64 for now."
+        exit 1
+    fi
+
+    OS="linux"
+
+    stripBinary() {
+        strip --remove-section=.comment --remove-section=.note $1
+    }
+elif [ "$UNAME" == "Darwin" ] ; then
+    SYSCTL_64BIT=$(sysctl -n hw.cpu64bit_capable 2>/dev/null || echo 0)
+    if [ "$ARCH" == "i386" -a "1" != "$SYSCTL_64BIT" ] ; then
+        # some older macos returns i386 but can run 64 bit binaries.
+        # Probably should distribute binaries built on these machines,
+        # but it should be OK for users to run.
+        ARCH="x86_64"
+    fi
+
+    if [ "$ARCH" != "x86_64" ] ; then
+        echo "Unsupported architecture: $ARCH"
+        echo "Meteor only supports x86_64 for now."
+        exit 1
+    fi
+
+    OS="osx"
+
+    # We don't strip on Mac because we don't know a safe command. (Can't strip
+    # too much because we do need node to be able to load objects like
+    # fibers.node.)
+    stripBinary() {
+        true
+    }
+else
+    echo "This OS not yet supported"
+    exit 1
+fi
+
+PLATFORM="${UNAME}_${ARCH}"
+
+SCRIPTS_DIR=$(dirname $0)
+cd "$SCRIPTS_DIR/.."
+CHECKOUT_DIR=$(pwd)
+
+DIR=$(mktemp -d -t generate-dev-bundle-XXXXXXXX)
+trap 'rm -rf "$DIR" >/dev/null 2>&1' 0
+
+cd "$DIR"
+chmod 755 .
+umask 022
+mkdir build
+cd build