Implement station file

tools/dfx-orbit/src/args.rs

@@ -1,3 +1,5 @@
+use std::path::PathBuf;
+
 use crate::{
     asset::{RequestAssetArgs, VerifyAssetArgs},
     canister::{RequestCanisterArgs, VerifyCanisterArgs},
@@ -26,9 +28,13 @@ pub struct DfxOrbitArgs {
     pub(crate) quiet: u8,
 
     /// Name of the station to execute the command on. (Uses default station if unspecified)
-    #[clap(short, long)]
+    #[clap(short, long, conflicts_with = "station_file")]
     pub(crate) station: Option<String>,
 
+    /// Load station information from a json file. (Useful in CI)
+    #[clap(long, conflicts_with = "station")]
+    pub(crate) station_file: Option<PathBuf>,
+
     // TODO: Allow to specify --network, to overwrite the network specified by the station
     /// The user identity to run this command as
     #[clap(short, long)]
@@ -106,11 +112,14 @@ impl DfxOrbitArgs {
             return Ok(());
         };
 
-        let config = match self.station {
-            Some(station_name) => orbit_agent.station(&station_name)?,
-            None => orbit_agent
+        let config = if let Some(station_name) = self.station {
+            orbit_agent.station(&station_name)?
+        } else if let Some(station_file) = self.station_file {
+            orbit_agent.station_from_path(&station_file)?
+        } else {
+            orbit_agent
                 .default_station()?
-                .ok_or_else(|| anyhow::format_err!("No default station specified"))?,
+                .ok_or_else(|| anyhow::format_err!("No default station specified"))?
         };
 
         let dfx_orbit = DfxOrbit::new(orbit_agent, config, self.identity, logger).await?;

tools/dfx-orbit/src/local_config.rs

@@ -1,4 +1,6 @@
 //! Local dfx configuration of Orbit stations.
+use std::path::Path;
+
 use crate::{dfx::OrbitExtensionAgent, station::StationConfig};
 use anyhow::Context;
 use candid::Principal;
@@ -139,6 +141,15 @@ impl OrbitExtensionAgent {
         Ok(station)
     }
 
+    pub fn station_from_path(&self, path: &Path) -> anyhow::Result<StationConfig> {
+        let station_file = std::fs::File::open(path)
+            .with_context(|| format!("Failed to open station file at {}", path.display()))?;
+
+        let station: StationConfig = serde_json::from_reader(station_file)
+            .with_context(|| "Failed to parse station file")?;
+        Ok(station)
+    }
+
     /// Removes an Orbit station from the local dfx configuration.
     pub fn remove_station(&self, name: &str) -> anyhow::Result<()> {
         let dir = self.stations_dir()?;