Bypass a licence agreement when mounting a DMG on the command line

I'm automating my Mac installation using puppet. As a part of it I need to install several programs that come in a .dmg format.

I use the following to mount them:

sudo /usr/bin/hdiutil mount -plist -nobrowse -readonly -quiet -mountrandom /tmp Program.dmg

The problem is that some .dmg files come with a license attached, and so script is stuck accepting the license. (There is no stdin/out when running with puppet, so I can't manually approve it to continue.)

Is there a way to pre-approve or force-approve the license?

Solution 1:

If you have a GUI and are able to perform two command-line calls in parallel, you can use

/System/Library/CoreServices/DiskImageMounter.app/Contents/MacOS/DiskImageMounter /path/to/file.dmg

and

osascript accept.scpt

the latter of which executes the following AppleScript:

tell application "System Events"
    delay 5 # wait 5 seconds -- I tested it using two terminal tabs and needed the time
    key code 48 # press tab 4 times in the license window
    key code 48
    key code 48
    key code 48
    keystroke " " # press space to click "accept"
end tell

In bash, I'm able to write

/System/Library/CoreServices/DiskImageMounter.app/Contents/MacOS/DiskImageMounter file.dmg & osascript accept.scpt

Solution 2:

This worked for me when I encountered a .dmg that contained a EULA which I wanted to install it via the command line with no user interaction...

/usr/bin/hdiutil convert -quiet foo.dmg -format UDTO -o bar
/usr/bin/hdiutil attach -quiet -nobrowse -noverify -noautoopen -mountpoint right_here bar.cdr

(note: I am reasonably sure not all of the above options are needed to bypass the EULA, such as -nobrowse, -noverify, -noautoopen, -mountpoint. However, I used them and I didn't test without them so I didn't want to claim something that I hadn't tested.)

What I ended up with was a directory with

bar.cdr
foo.dmg
right_here/

where right_here/ contained the contents of the foo.dmg without being prompted for the EULA.

Be sure to detach when you are done!

/usr/bin/hdiutil detach right_here/

For more information: hdiutil(1) Mac OS X Manual Page.

YMMV

Solution 3:

If it just needs "Y" typed in, then pipe the yes command into the hdiutil command:

yes | /bin/hdiutil [...]

That will emulate pressing 'y' and return at the command line.

To type something else, just put it on the command line as a parameter:

yes accept | ...

That'll enter 'accept' into the script.

Note that if the script asks for input multiple times, the yes command will put multiple entries in. You may see output like 'broken pipe' - this just means that the command you piped into quit while 'yes' was still sending input.