FixComputerName.pkginfo

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>_metadata</key>
	<dict>
		<key>created_by</key>
		<string>aysiu</string>
		<key>creation_date</key>
		<date>2017-02-14T20:24:42Z</date>
		<key>munki_version</key>
		<string>2.8.2.2855</string>
		<key>os_version</key>
		<string>10.12.3</string>
	</dict>
	<key>autoremove</key>
	<false/>
	<key>catalogs</key>
	<array>
		<string>testing</string>
		<string>beta</string>
		<string>live</string>
	</array>
	<key>category</key>
	<string>NoPkg</string>
	<key>description</key>
	<string>Fixes the computer name to match display name, user, or notes in the client manifest.</string>
	<key>developer</key>
	<string>Alan Siu</string>
	<key>display_name</key>
	<string>Fix Computer Name</string>
	<key>icon_name</key>
	<string>Finder.png</string>
	<key>installcheck_script</key>
	<string>#!/bin/bash

# Uncomment only one of these for what key holds the value for the computer name you want to set.
#key_for_name='user'
key_for_name='display_name'
#key_for_name='notes'

cm_exists=0

# Location of client manifest on client
client_manifest='/Library/Managed Installs/manifests/client_manifest.plist'

if [ -f "$client_manifest" ]; then

	cm_exists=1
else

	# Get name of manifest
	manifest_name=$(cat /Library/Managed\ Installs/Logs/ManagedSoftwareUpdate.log | grep "Using manifest" | tail -1 | awk -F "Using manifest: " '{print $2}')

	# Alternate location (Munki 3?)
	cm_alternate="/Library/Managed Installs/manifests/$manifest_name"

	if [ -f "$cm_alternate" ]; then

   	client_manifest="$cm_alternate"

   	cm_exists=1

	fi

fi

# Array of computer name types
name_types=('ComputerName'
'HostName'
'LocalHostName')

# Function to check desired name against current name. First parameter is name type, and second parameter is the desired name
check_name(){
    # Let's get the current name for the name type
    current_name=$(scutil --get "$1")
    # If they don't match, it's not installed
    if [ "$current_name" != "$2" ]; then
        # It's not installed if any of these does not match
        exit 0
    fi
}

# Make sure the computer isn't joined to the domain
adconfig=$(dsconfigad -show)

if [ -z "$adconfig" ]; then

    # Check the client manifest exists (it should)
    if [ "$cm_exists"==1 ]; then

         echo "Client manifest exists at $client_manifest"

        # Check that the key we're looking for exists
        key_check=$(/usr/libexec/PlistBuddy -c 'print' "$client_manifest" | grep "$key_for_name")
        if [ ! -z "$key_check" ]; then
    
            # Get the actual key value and trim whitespace
            desired_name=$(/usr/libexec/PlistBuddy -c "print :$key_for_name" "$client_manifest")
      
            # Make sure the desired_name isn't blank, because then you're renaming the computer to nothing
            if [ ! -z "$desired_name" ]; then

                # Loop through the array of name types and process those
                for name_type in "${name_types[@]}"
                    do
                        check_name "$name_type" "$desired_name"
                    done

            # End checking the desired name isn't blank
            fi

        # End checking key exists
        fi

    # End checking file exists
    fi

# End checking not bound to AD
fi

# If we get this far, it's essentially "installed." If, for example, the value is just a bunch of stripped-out whitespace, there's no point in "installing" this item to not change anything.
exit 1</string>
	<key>installer_type</key>
	<string>nopkg</string>
	<key>minimum_os_version</key>
	<string>10.4.0</string>
	<key>name</key>
	<string>FixComputerName</string>
	<key>postinstall_script</key>
	<string>#!/bin/bash

# Uncomment only one of these for what key holds the value for the computer name you want to set.
#key_for_name='user'
key_for_name='display_name'
#key_for_name='notes'

# Location of client manifest on client
client_manifest='/Library/Managed Installs/manifests/client_manifest.plist'

if [ -f "$client_manifest" ]; then

	cm_exists=1
else

	# Get name of manifest
	manifest_name=$(cat /Library/Managed\ Installs/Logs/ManagedSoftwareUpdate.log | grep "Using manifest" | tail -1 | awk -F "Using manifest: " '{print $2}')

	# Alternate location (Munki 3?)
	cm_alternate="/Library/Managed Installs/manifests/$manifest_name"

	if [ -f "$cm_alternate" ]; then

   	client_manifest="$cm_alternate"

   	cm_exists=1

	fi

fi

# Array of computer name types
name_types=('ComputerName'
'HostName'
'LocalHostName')

# Function to check desired name against current name. First parameter is name type, and second parameter is the desired name
fix_name(){
    # Let's get the current name for the name type
    current_name=$(scutil --get "$1")
    # If they don't match, make them match
    if [ "$current_name" != "$2" ]; then
        sudo scutil --set "$1" "$2"
    fi
}

# Make sure the computer isn't joined to the domain
adconfig=$(dsconfigad -show)

if [ -z "$adconfig" ]; then

    # Check the client manifest exists (it should)
    if [ "$cm_exists"==1 ]; then

        # Check that the key we're looking for exists
        key_check=$(/usr/libexec/PlistBuddy -c 'print' "$client_manifest" | grep "$key_for_name")
        if [ ! -z "$key_check" ]; then

            # Get the actual key value and trim whitespace
            desired_name=$(/usr/libexec/PlistBuddy -c "print :$key_for_name" "$client_manifest")
        
            # Make sure the desired_name isn't blank, because then you're renaming the computer to nothing
            if [ ! -z "$desired_name" ]; then

                # Loop through the array of name types and process those
                for name_type in "${name_types[@]}"
                    do
                        fix_name "$name_type" "$desired_name"
                    done

            # End checking the desired name isn't blank
            fi

        # End checking key exists
        fi

    # End checking file exists
    fi

# End checking not bound to AD
fi</string>
	<key>unattended_install</key>
	<true/>
	<key>version</key>
	<string>1.1</string>
</dict>
</plist>