Running

Just start ./setup.sh. It will do the following:

download apt sources and apt-file data for the amd64 Debian sid snapshot at 20141211T041251Z and store them in a directory tree rooted at ./debian-sid-amd64
go through all binary packages which have a file DEBIAN/triggers in their control archive (the list is stored in the file control_triggers_packages) and for each package:
download and unpack its control archive
store all interest-await file triggers in the file interested-file
store all interest-await explicit triggers in the file interested-explicit
store all activate-await file triggers in the file activated-file
store all activate-await explicit triggers in the file activated-explicit
remove the downloaded binary package and unpacked control archive
go through interested-file and for each line:
calculate the dependency closure for the binary package and for each package in the closure: 1. use apt-file to get all files of the package 2. check if the current file trigger matches any file in the package 3. store any hits in the file result-file
go through interested-file and for each line:
calculate the dependency closure for the binary package and for each package in the closure: 1. check if the package activates the current file trigger 2. append any hits to the file result-file
go through interested-explicit and for each line:
calculate the dependency closure for the binary package and for each package in the closure: 1. check if the package activate the current explicit trigger 2. store any hits in the file result-explicit

Files

control_triggers_packages

The currently known files that ship a DEBIAN/triggers file in their control metadata. In the future, this list should be autogenerated.

interested-file

Associates binary packages to file triggers they are interested in. The first column is the binary package, the second column is either interest or interest-await and the last column the path they are interested in.

interested-explicit

Associates binary packages to explicit triggers they are interested in. The first column is the binary package, the second column is either interest or interest-await and the last column the name of the explicit trigger they are interested in.

activated-file

Associates binary packages to file triggers they activate. The first column is the binary package, the second column is either activate or activate-await and the last column the path they activate.

activate-explicit

Associates binary packages to explicit triggers they activate. The first column is the binary package, the second column is either activate or activate-await and the last column the explicit trigger they activate.

result-file

Associates binary packages with other binary packages they can form a file trigger cycle with. The first column is the binary package containing the file trigger, the second column is the file trigger, the third column is a binary package providing a path that triggers the binary package in the first column, the fourth column is the triggering path of provided by the binary package in the third column.

result-explicit

Associates binary packages with other binary packages they can form an explicit trigger cycle with. The first column is the binary package interested in the explicit trigger, the second column is the name of the explicit trigger, the third column is the binary package activating the trigger.

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