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@aazwar
Last active November 26, 2020 19:45
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Speed up XCode 7
#!/bin/sh
# Create a RAM disk with same perms as mountpoint
# Script based on http://itux.idev.pro/2012/04/iservice-speed-up-your-xcode-%D0%BD%D0%B5%D0%BA%D0%BE%D1%82%D0%BE%D1%80%D1%8B%D0%B5-%D1%81%D0%BF%D0%BE%D1%81%D0%BE%D0%B1%D1%8B/ with some additions
# Usage: sudo ./xcode_ramdisk.sh start
# PREREQUISITE:
# mkdir /Users/$USERNAME/Library/Developer/Xcode/DerivedData.shadow
## Unless you clear DerivedData folder, you can't mount ramdisk on it
# rm -r /Users/$USERNAME/Library/Developer/Xcode/DerivedData/*
# MAINTENANCE
# Keep the size of DerivedData folder below the Ramdisk size
USERNAME=$(logname)
DEV_CACHES_DIR="/Users/$USERNAME/Library/Developer/Xcode/DerivedData"
DEV_CACHES_SHADOW_DIR="/Users/$USERNAME/Library/Developer/Xcode/DerivedData.shadow"
RAMDisk() {
mntpt="$1"
rdsize=$(($2*1024*1024/512))
# Create the RAM disk.
dev=`hdik -drivekey system-image=yes -nomount ram://$rdsize`
# Successfull creation...
if [ $? -eq 0 ] ; then
# Create HFS on the RAM volume.
newfs_hfs $dev
# Store permissions from old mount point.
eval `/usr/bin/stat -s "$mntpt"`
# Mount the RAM disk to the target mount point.
mount -t hfs -o union -o nobrowse -o nodev -o noatime $dev "$mntpt"
# Restore permissions like they were on old volume.
chown $st_uid:$st_gid "$mntpt"
chmod $st_mode "$mntpt"
echo "Creating RamFS for $mntpt $rdsize $dev"
fi
}
UmountDisk() {
mntpt="$1"
dev=`mount | grep "$mntpt" | grep hfs | cut -f 1 -d ' '`
umount -f "$mntpt"
hdiutil detach "$dev"
echo "Umount RamFS for $mntpt $dev"
echo ""
}
# Test for arguments.
if [ -z $1 ]; then
echo "Usage: $0 [start|stop] "
exit 1
fi
# Source the common setup functions for startup scripts
test -r /etc/rc.common || exit 1
. /etc/rc.common
StartService () {
ConsoleMessage "Starting RamFS disks..."
RAMDisk "$DEV_CACHES_DIR" 1024
cp -rp "$DEV_CACHES_SHADOW_DIR/"* "$DEV_CACHES_DIR/"
}
StopService () {
if [ -z "$(pgrep 'Xcode$')" ]; then
echo "Stopping RamFS disks..."
/usr/bin/rsync -aqr --delete "$DEV_CACHES_DIR/" "$DEV_CACHES_SHADOW_DIR/"
UmountDisk "$DEV_CACHES_DIR"
else
echo "Xcode is running, please close first."
fi
}
RunService "$1"
@evermeer
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Hi, Nice script.
You could change line 67 into:
if [ -z "$(pgrep 'Xcode$')" ]; then
So that the processes 'Xcode Helper' and 'Xcode Builder Service' are allowed to run.
And I think you should change 'ConsoleMessage' to 'echo'

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