Duplicate package installation when using productbuild

Subject: Duplicate package installation when using productbuild
From: Tanguy RAHUEL <email@hidden>
Date: Tue, 20 Aug 2013 19:35:15 +0200

Hi,

For project purposes, we changed our installer creation process to 'productbuild'. Our installer (Distribution style .mpkg) contains multiple packages (.pkg). When looking at the install.log file in the console utility, each of our packages is processed twice. This brings some odd behaviors when pre-install/post-install scripts are contained in some packages such as an application is started twice and so on.

To create our installer we use the following command line:

productbuild --identifier "myinstaller" --version "1.2.3" --distribution "mydistribution.dist" --resources "myresources" --package-path "pathToAllPackages" "installer.mpkg"

Our my distribution.dist file already exists and contains some information on the installer such as the license file, the background image ...

Using the following command lines, we can reproduce this behavior :

# move to temp folder

cd /tmp

mkdir Packages

# Copy some known applications

cp -r /Applications/Calculator.app Calculator.app

cp -r /Applications/TextEdit.app TextEdit.app

# Build each packages

pkgbuild --component Calculator.app/ Packages/Calculator.pkg

pkgbuild --component TextEdit.app/ Packages/TextEdit.pkg

# Build distribution installer

productbuild --synthesize --package Packages/Calculator.pkg --package Packages/TextEdit.pkg distribution.dist

productbuild --identifier "myIdentifier" --version "1.0.0" --distribution distribution.dist --package-path Packages/ myInstaller.mpkg

# In the console utility / install.log :

Two packages seen at the beginning

================================================================================

Installer[4367]: User picked Standard Install

Installer[4367]: Choices selected for installation:

Installer[4367]: Mise à jour: ""

Mise à jour: "(null)"

myInstaller.mpkg#Calculator.pkg : com.apple.calculator : 10.8.0

myInstaller.mpkg#TextEdit.pkg : com.apple.TextEdit : 1.8.0

Installer[4367]:

================================================================================

BUT a little further, we can see

installd[4378]: PackageKit: ----- Begin install -----

installd[4378]: PackageKit: request=PKInstallRequest <4 packages, destination=/>

installd[4378]: PackageKit: packages=(

"PKLeopardPackage <file://localhost/tmp/myInstaller.mpkg#Calculator.pkg>",

"PKLeopardPackage <file://localhost/tmp/myInstaller.mpkg#TextEdit.pkg>",

"PKLeopardPackage <file://localhost/tmp/myInstaller.mpkg#TextEdit.pkg>"

Has anyone crossed this already ? How can i avoid duplicate packages at the installation time ?

Thanks in advance,

Tanguy RAHUEL

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