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Evaluate background apps using systemd
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,188 @@ | ||
| // SPDX-License-Identifier: GPL-3.0-only | ||
|
|
||
| use serde::Deserialize; | ||
| use zbus::{zvariant, Result}; | ||
|
|
||
| static COSMIC_SCOPE: &str = "app-cosmic-"; | ||
| static FLATPAK_SCOPE: &str = "app-flatpak-"; | ||
|
|
||
| /// Proxy for the `org.freedesktop.systemd1.Manager` interface | ||
| #[zbus::proxy( | ||
| default_service = "org.freedesktop.systemd1", | ||
| default_path = "/org/freedesktop/systemd1", | ||
| interface = "org.freedesktop.systemd1.Manager" | ||
| )] | ||
| trait Systemd1 { | ||
| fn list_units(&self) -> Result<Vec<Unit>>; | ||
| } | ||
|
|
||
| #[derive(Debug, Clone, PartialEq, Eq, Deserialize, zvariant::Type)] | ||
| #[cfg_attr(test, derive(Default))] | ||
| #[zvariant(signature = "(ssssssouso)")] | ||
| pub struct Unit { | ||
| pub name: String, | ||
| pub description: String, | ||
| pub load_state: LoadState, | ||
| pub active_state: ActiveState, | ||
| pub sub_state: String, | ||
| pub following: String, | ||
| pub unit_object: zvariant::OwnedObjectPath, | ||
| pub job_id: u32, | ||
| pub job_type: String, | ||
| pub job_object: zvariant::OwnedObjectPath, | ||
| } | ||
|
|
||
| impl Unit { | ||
| /// Returns appid if COSMIC or Flatpak launched this unit | ||
| pub fn cosmic_flatpak_name(&self) -> Option<&str> { | ||
| self.name | ||
| .strip_prefix(COSMIC_SCOPE) | ||
| .or_else(|| self.name.strip_prefix(FLATPAK_SCOPE))? | ||
| .rsplit_once('-') | ||
| .and_then(|(appid, pid_scope)| { | ||
| // Check if unit name ends in `-{PID}.scope` | ||
| _ = pid_scope.strip_suffix(".scope")?.parse::<u32>().ok()?; | ||
| Some(appid) | ||
| }) | ||
| } | ||
| } | ||
|
|
||
| /// Load state for systemd units | ||
| /// | ||
| /// Source: https://github.com/systemd/systemd/blob/main/man/systemctl.xml | ||
| #[derive(Debug, Clone, Copy, PartialEq, Eq, Deserialize, zvariant::Type)] | ||
| #[cfg_attr(test, derive(Default))] | ||
| #[zvariant(signature = "s")] | ||
| #[serde(rename_all = "kebab-case")] | ||
| pub enum LoadState { | ||
| #[cfg_attr(test, default)] | ||
| Stub, | ||
| Loaded, | ||
| NotFound, | ||
| BadSetting, | ||
| Error, | ||
| Merged, | ||
| Masked, | ||
| } | ||
|
|
||
| /// Sub-state for systemd units | ||
| /// | ||
| /// Source: https://github.com/systemd/systemd/blob/main/man/systemctl.xml | ||
| #[derive(Debug, Clone, Copy, PartialEq, Eq, Deserialize, zvariant::Type)] | ||
| #[cfg_attr(test, derive(Default))] | ||
| #[zvariant(signature = "s")] | ||
| #[serde(rename_all = "kebab-case")] | ||
| pub enum SubState { | ||
| #[cfg_attr(test, default)] | ||
| Dead, | ||
| Active, | ||
| Waiting, | ||
| Running, | ||
| Failed, | ||
| Cleaning, | ||
| Tentative, | ||
| Plugged, | ||
| Mounting, | ||
| MountingDone, | ||
| Mounted, | ||
| Remounting, | ||
| Unmounting, | ||
| RemountingSigterm, | ||
| RemountingSigkill, | ||
| UnmountingSigterm, | ||
| UnmountingSigkill, | ||
| Stop, | ||
| StopWatchdog, | ||
| StopSigterm, | ||
| StopSigkill, | ||
| StartChown, | ||
| Abandoned, | ||
| Condition, | ||
| Start, | ||
| StartPre, | ||
| StartPost, | ||
| StopPre, | ||
| StopPreSigterm, | ||
| StopPreSigkill, | ||
| StopPost, | ||
| Exited, | ||
| Reload, | ||
| ReloadSignal, | ||
| ReloadNotify, | ||
| FinalWatchdog, | ||
| FinalSigterm, | ||
| FinalSigkill, | ||
| DeadBeforeAutoRestart, | ||
| FailedBeforeAutoRestart, | ||
| DeadResourcesPinned, | ||
| AutoRestart, | ||
| AutoRestartQueued, | ||
| Listening, | ||
| Activating, | ||
| ActivatingDone, | ||
| Deactivating, | ||
| DeactivatingSigterm, | ||
| DeactivatingSigkill, | ||
| Elapsed, | ||
| } | ||
|
|
||
| /// Activated state for systemd units | ||
| /// | ||
| /// Source: https://github.com/systemd/systemd/blob/main/man/systemctl.xml | ||
| #[derive(Debug, Clone, Copy, PartialEq, Eq, Deserialize, zvariant::Type)] | ||
| #[cfg_attr(test, derive(Default))] | ||
| #[zvariant(signature = "s")] | ||
| #[serde(rename_all = "kebab-case")] | ||
| pub enum ActiveState { | ||
| Active, | ||
| Reloading, | ||
| #[cfg_attr(test, default)] | ||
| Inactive, | ||
| Failed, | ||
| Activating, | ||
| Deactivating, | ||
| Maintenance, | ||
| } | ||
|
|
||
| #[cfg(test)] | ||
| mod tests { | ||
| use super::Unit; | ||
|
|
||
| const APPID: &str = "com.system76.CosmicFiles"; | ||
|
|
||
| fn unit_with_name(name: &str) -> Unit { | ||
| Unit { | ||
| name: name.to_owned(), | ||
| ..Default::default() | ||
| } | ||
| } | ||
|
|
||
| #[test] | ||
| fn parse_appid_without_scope_fails() { | ||
| let unit = unit_with_name(APPID); | ||
| let name = unit.cosmic_flatpak_name(); | ||
| assert!( | ||
| name.is_none(), | ||
| "Only apps launched by COSMIC or Flatpak should be parsed; got: {name:?}" | ||
| ); | ||
| } | ||
|
|
||
| #[test] | ||
| fn parse_appid_with_scope_pid() { | ||
| let unit = unit_with_name(&format!("app-cosmic-{APPID}-1234.scope")); | ||
| let name = unit | ||
| .cosmic_flatpak_name() | ||
| .expect("Should parse app launched by COSMIC"); | ||
| assert_eq!(APPID, name); | ||
| } | ||
|
|
||
| #[test] | ||
| fn parse_appid_with_scope_no_pid_fails() { | ||
| let unit = unit_with_name(&format!("app-cosmic-{APPID}.scope")); | ||
| let name = unit.cosmic_flatpak_name(); | ||
| assert!( | ||
| name.is_none(), | ||
| "Apps launched by COSMIC/Flatpak should have a PID in its scope name" | ||
| ); | ||
| } | ||
| } |