This file is indexed.

postinst is in libglib2.0-0 2.56.1-2ubuntu1.

This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.

The actual contents of the file can be viewed below.

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#!/bin/sh
set -e

if [ "$1" = triggered ]; then
    for trigger in $2; do
        if ! [ -d $trigger ]; then
            continue
        fi
        case $trigger in
          /usr/share/glib-2.0/schemas)
            # This is triggered everytime an application installs a
            # GSettings schema
            /usr/lib/x86_64-linux-gnu/glib-2.0/glib-compile-schemas /usr/share/glib-2.0/schemas || true
            ;;

          /usr/lib/x86_64-linux-gnu/gio/modules|/usr/lib/gio/modules)
            # This is triggered everytime an application installs a GIO
            # module into /usr/lib/x86_64-linux-gnu/gio/modules or the
            # backwards-compatible /usr/lib/gio/modules directory

            # The /usr/lib/gio/modules directory is no longer shipped by
            # libglib2.0 itself so we need to check to avoid a warning from
            # gio-querymodules
            dirs=/usr/lib/x86_64-linux-gnu/gio/modules
            if [ -d /usr/lib/gio/modules ] && [ $(dpkg --print-architecture) = amd64 ]; then
                dirs="$dirs /usr/lib/gio/modules"
            fi
            /usr/lib/x86_64-linux-gnu/glib-2.0/gio-querymodules $dirs || true
            ;;
        esac
    done
    exit 0
fi



# Also handle the initial installation
if [ -d /usr/share/glib-2.0/schemas ]; then
    /usr/lib/x86_64-linux-gnu/glib-2.0/glib-compile-schemas /usr/share/glib-2.0/schemas || true
fi
if [ -d /usr/lib/x86_64-linux-gnu/gio/modules ]; then
    /usr/lib/x86_64-linux-gnu/glib-2.0/gio-querymodules /usr/lib/x86_64-linux-gnu/gio/modules || true
fi
if [ -d /usr/lib/gio/modules ] && [ $(dpkg --print-architecture) = amd64 ]; then
    /usr/lib/x86_64-linux-gnu/glib-2.0/gio-querymodules /usr/lib/gio/modules || true
fi