feat: Add support for Wolfi (#672)

* feat: Add support for Wolfi

This adds support for updating Wolfi via Topgrade

* chore(wolfi): Add os release info and unit test

* chore(wolfi): Don't check ID_LIKE as it is unique

src/steps/os/linux.rs

@@ -20,6 +20,7 @@ static OS_RELEASE_PATH: &str = "/etc/os-release";
 #[derive(Copy, Clone, Debug, PartialEq, Eq)]
 pub enum Distribution {
     Alpine,
+    Wolfi,
     Arch,
     Bedrock,
     CentOS,
@@ -52,6 +53,7 @@ impl Distribution {
 
         Ok(match id {
             Some("alpine") => Distribution::Alpine,
+            Some("wolfi") => Distribution::Wolfi,
             Some("centos") | Some("rhel") | Some("ol") => Distribution::CentOS,
             Some("clear-linux-os") => Distribution::ClearLinux,
             Some("fedora") => {
@@ -136,6 +138,7 @@ impl Distribution {
 
         match self {
             Distribution::Alpine => upgrade_alpine_linux(ctx),
+            Distribution::Wolfi => upgrade_wolfi_linux(ctx),
             Distribution::Arch => archlinux::upgrade_arch_linux(ctx),
             Distribution::CentOS | Distribution::Fedora => upgrade_redhat(ctx),
             Distribution::FedoraImmutable => upgrade_fedora_immutable(ctx),
@@ -201,6 +204,14 @@ fn upgrade_alpine_linux(ctx: &ExecutionContext) -> Result<()> {
     ctx.run_type().execute(sudo).arg(&apk).arg("upgrade").status_checked()
 }
 
+fn upgrade_wolfi_linux(ctx: &ExecutionContext) -> Result<()> {
+    let apk = require("apk")?;
+    let sudo = require_option(ctx.sudo().as_ref(), REQUIRE_SUDO.to_string())?;
+
+    ctx.run_type().execute(sudo).arg(&apk).arg("update").status_checked()?;
+    ctx.run_type().execute(sudo).arg(&apk).arg("upgrade").status_checked()
+}
+
 fn upgrade_redhat(ctx: &ExecutionContext) -> Result<()> {
     if let Some(ostree) = which("rpm-ostree") {
         if ctx.config().rpm_ostree() {
@@ -1021,6 +1032,11 @@ mod tests {
         );
     }
 
+    #[test]
+    fn test_wolfi() {
+        test_template(include_str!("os_release/wolfi"), Distribution::Wolfi);
+    }
+
     #[test]
     fn test_arch_linux() {
         test_template(include_str!("os_release/arch"), Distribution::Arch);

src/steps/os/os_release/wolfi

@@ -0,0 +1,5 @@
+ID=wolfi
+NAME="Wolfi"
+PRETTY_NAME="Wolfi"
+VERSION_ID="20230201"
+HOME_URL="https://wolfi.dev"