coco
145 lines
3.3 KiB
Bash
145 lines
3.3 KiB
Bash
#!/bin/sh
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# prerm script for binjr
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#
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# see: dh_installdeb(1)
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set -e
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# summary of how this script can be called:
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# * <prerm> `remove'
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# * <old-prerm> `upgrade' <new-version>
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# * <new-prerm> `failed-upgrade' <old-version>
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# * <conflictor's-prerm> `remove' `in-favour' <package> <new-version>
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# * <deconfigured's-prerm> `deconfigure' `in-favour'
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# <package-being-installed> <version> `removing'
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# <conflicting-package> <version>
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# for details, see https://www.debian.org/doc/debian-policy/ or
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# the debian-policy package
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#
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# Remove $1 desktop file from the list of default handlers for $2 mime type
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# in $3 file dumping output to stdout.
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#
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_filter_out_default_mime_handler ()
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{
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local defaults_list="$3"
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local desktop_file="$1"
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local mime_type="$2"
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awk -f- "$defaults_list" <<EOF
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BEGIN {
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mime_type="$mime_type"
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mime_type_regexp="~" mime_type "="
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desktop_file="$desktop_file"
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}
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\$0 ~ mime_type {
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\$0 = substr(\$0, length(mime_type) + 2);
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split(\$0, desktop_files, ";")
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remaining_desktop_files
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counter=0
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for (idx in desktop_files) {
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if (desktop_files[idx] != desktop_file) {
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++counter;
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}
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}
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if (counter) {
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printf mime_type "="
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for (idx in desktop_files) {
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if (desktop_files[idx] != desktop_file) {
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printf desktop_files[idx]
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if (--counter) {
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printf ";"
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}
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}
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}
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printf "\n"
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}
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next
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}
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{ print }
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EOF
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}
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#
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# Remove $2 desktop file from the list of default handlers for $@ mime types
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# in $1 file.
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# Result is saved in $1 file.
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#
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_uninstall_default_mime_handler ()
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{
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local defaults_list=$1
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shift
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[ -f "$defaults_list" ] || return 0
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local desktop_file="$1"
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shift
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tmpfile1=$(mktemp)
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tmpfile2=$(mktemp)
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cat "$defaults_list" > "$tmpfile1"
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local v
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local update=
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for mime in "$@"; do
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_filter_out_default_mime_handler "$desktop_file" "$mime" "$tmpfile1" > "$tmpfile2"
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v="$tmpfile2"
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tmpfile2="$tmpfile1"
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tmpfile1="$v"
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if ! diff -q "$tmpfile1" "$tmpfile2" > /dev/null; then
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update=yes
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trace Remove $desktop_file default handler for $mime mime type from $defaults_list file
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fi
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done
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if [ -n "$update" ]; then
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cat "$tmpfile1" > "$defaults_list"
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trace "$defaults_list" file updated
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fi
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rm -f "$tmpfile1" "$tmpfile2"
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}
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#
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# Remove $1 desktop file from the list of default handlers for $@ mime types
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# in all known system defaults lists.
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#
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uninstall_default_mime_handler ()
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{
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for f in /usr/share/applications/defaults.list /usr/local/share/applications/defaults.list; do
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_uninstall_default_mime_handler "$f" "$@"
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done
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}
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trace ()
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{
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echo "$@"
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}
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case "$1" in
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remove|upgrade|deconfigure)
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xdg-desktop-menu uninstall /opt/binjr/lib/binjr-binjr.desktop || echo "Desktop menu entry could not be uninstalled" >&2
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xdg-mime uninstall /opt/binjr/lib/binjr-binjr-MimeInfo.xml || echo "x-binjr Mime type could not be uninstalled" >&2
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uninstall_default_mime_handler binjr-binjr.desktop application/x-binjr
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xdg-icon-resource uninstall application-x-binjr --size 128 || echo "Icon resource could not be uninstalled" >&2
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rm -f /usr/bin/binjr
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;;
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failed-upgrade)
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;;
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*)
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echo "prerm called with unknown argument \`$1'" >&2
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exit 1
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;;
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esac
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exit 0
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