# See the License for the specific language governing permissions and
# limitations under the License.
-distro_name() {
+distro-name() {
+ local x
if [[ -f /etc/fedora-release ]]; then
echo fedora
+ elif [[ -e /etc/os-release ]]; then
+ sed -rn 's/^ID=(.*)/\1/p' /etc/os-release
+ elif type -p lsb_release &>/dev/null; then
+ # well, this is more standard, but it's 2 ms vs 200 ms
+ x=$(lsb_release -si); echo ${x,,}
else
- grep "^ID=.*" /etc/os-release | sed 's/^ID=//'
+ echo "unknown distro"
+ return 1
fi
}
+
+distro-name-compat() {
+ local x=$(distro-name)
+ case $x in
+ trisquel)
+ echo ubuntu
+ ;;
+ *)
+ echo $x
+ ;;
+ esac
+}
+
+distro-name-ver() {
+ echo `distro-name``debian-archive`
+}
+
+debian-archive() {
+ isdeb || return 0
+ local archive expression pri name highpri shortest
+ local policy="${1:-$(apt-cache policy)}"
+ # a = archive
+ # n = codename
+ # o = origin
+ # c = component (licensing component)
+ # l = label (Debian{,-Security,-Updates})
+ local d=$(distro-name)
+ # goto b for archive lines we are interested in, a for lines we arent
+ # print priority + archive name. priority is in
+ # the previous line from the archive line.
+ # case insensitive, because $d is lower and we are matching with first char upper
+ read -rd '' expression <<EOF ||:
+/o=$d/I!b a;/l=$d/I!b a;/c=main/!b a b b;
+: a;s/^ *([-0-9]+).*/\1/;h;b;
+: b;s/^.*a=([^,]+).*/ \1/;H;x;s/\n//;p
+EOF
+ while read -r pri name; do
+# in ubuntu, we get archives like flidas, flidas-updates, all the same pri,
+# so just pick the shortest one.
+ if [[ ! $highpri ]]; then
+ highpri=$pri;
+ shortest=$name
+ continue
+ fi
+ if [[ $pri != $highpri ]]; then
+ break
+ fi
+ if (( ${#shortest} > ${#name} )); then
+ shortest=$name
+ fi
+ done < <(echo "$policy" | sed -rn "$expression" | sort -rn)
+ echo "$shortest"
+
+}
+
+
+isdebian-testing() {
+ [[ $(debian-archive) == testing ]]
+}
+# I only do testing or stable.
+isdebian-stable() {
+ [[ $(debian-archive) == stable ]]
+}
+
+debian-codename() {
+ isdeb || return 0
+ local policy="$(apt-cache policy)"
+ archive=$(debian-archive "$policy")
+ echo "$policy" | sed -rn "s/^.*a=$archive,n=([a-z]+).*/\1/p;T;q"
+}
+debian-codename-compat() {
+ local n=$(debian-codename)
+ case $n in
+ flidas)
+ echo xenial
+ ;;
+ *)
+ echo $n
+ ;;
+ esac
+}
+
isfedora() {
- local d=$(distro_name)
- [[ $d == fedora ]] || return 1
+ [[ $(distro-name) == fedora ]]
}
isdebian() {
- local d=$(distro_name)
- [[ $d == debian ]] || return 1
+ [[ $(distro-name) == debian ]]
}
-isdeb() {
- local d=$(distro_name)
- [[ $d == debian || $d == ubuntu ]] || return 1
+isarch() {
+ [[ $(distro-name) == arch ]]
}
isubuntu() {
- local d=$(distro_name)
- [[ $d == ubuntu ]] || return 1
+ [[ $(distro-name) == ubuntu ]]
+}
+istrisquel() {
+ [[ $(distro-name) == trisquel ]]
}
+# is debian/apt based
+isdeb() { command -v apt-get &>/dev/null; }