#
# Remove $1 desktop file from the list of default handlers for $2 mime type
# in $3 file dumping output to stdout.
#
_filter_out_default_mime_handler ()
{
local defaults_list="$3"
local desktop_file="$1"
local mime_type="$2"
awk -f- "$defaults_list" <<EOF
BEGIN {
mime_type="$mime_type"
mime_type_regexp="~" mime_type "="
desktop_file="$desktop_file"
}
\$0 ~ mime_type {
\$0 = substr(\$0, length(mime_type) + 2);
split(\$0, desktop_files, ";")
remaining_desktop_files
counter=0
for (idx in desktop_files) {
if (desktop_files[idx] != desktop_file) {
++counter;
}
}
if (counter) {
printf mime_type "="
for (idx in desktop_files) {
if (desktop_files[idx] != desktop_file) {
printf desktop_files[idx]
if (--counter) {
printf ";"
}
}
}
printf "\n"
}
next
}
{ print }
EOF
}
#
# Remove $2 desktop file from the list of default handlers for $@ mime types
# in $1 file.
# Result is saved in $1 file.
#
_uninstall_default_mime_handler ()
{
local defaults_list=$1
shift
[ -f "$defaults_list" ] || return 0
local desktop_file="$1"
shift
tmpfile1=$(mktemp)
tmpfile2=$(mktemp)
cat "$defaults_list" > "$tmpfile1"
local v
local update=
for mime in "$@"; do
_filter_out_default_mime_handler "$desktop_file" "$mime" "$tmpfile1" > "$tmpfile2"
v="$tmpfile2"
tmpfile2="$tmpfile1"
tmpfile1="$v"
if ! diff -q "$tmpfile1" "$tmpfile2" > /dev/null; then
update=yes
trace Remove $desktop_file default handler for $mime mime type from $defaults_list file
fi
done
if [ -n "$update" ]; then
cat "$tmpfile1" > "$defaults_list"
trace "$defaults_list" file updated
fi
rm -f "$tmpfile1" "$tmpfile2"
}
#
# Remove $1 desktop file from the list of default handlers for $@ mime types
# in all known system defaults lists.
#
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