Add system-version to omdb db

dev-tools/omdb/src/bin/omdb/db.rs

@@ -190,6 +190,7 @@ mod db_metadata;
 mod ereport;
 mod saga;
 mod sitrep;
+mod system_version;
 mod user_data_export;
 mod whatis;
 
@@ -405,6 +406,8 @@ enum DbCommands {
     Sleds(SledsArgs),
     /// Show instances grouped by the sled they are running on
     SledInstances(SledInstancesArgs),
+    /// Print the current target system release and the update date (print all of the releases when `--all` is present)
+    SystemVersion(system_version::SystemVersionArgs),
     /// Print information about customer instances.
     Instance(InstanceArgs),
     /// Alias to `omdb instance list`.
@@ -1453,6 +1456,9 @@ impl DbArgs {
                         )
                         .await
                     }
+                    DbCommands::SystemVersion(args) => {
+                        system_version::cmd_db_system_version(&opctx, &datastore, &fetch_opts, args).await
+                    }
                     DbCommands::Instance(InstanceArgs {
                         command: InstanceCommands::List(args),
                     }) => {

dev-tools/omdb/src/bin/omdb/db/system_version.rs

@@ -0,0 +1,96 @@
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at https://mozilla.org/MPL/2.0/.
+
+//! `omdb db system-version` subcommand
+//!
+//! Shows the current target release and date when update was requested.
+//! When `--all` option is used, lists all target release records.
+
+use crate::db::DbFetchOptions;
+use crate::db::check_limit;
+use crate::helpers::datetime_rfc3339_concise;
+use anyhow::Context;
+use async_bb8_diesel::AsyncRunQueryDsl;
+use clap::Args;
+use diesel::ExpressionMethods;
+use diesel::QueryDsl;
+use diesel::SelectableHelper;
+use nexus_db_model::TargetRelease;
+use nexus_db_model::TargetReleaseSource;
+use nexus_db_queries::context::OpContext;
+use nexus_db_queries::db::DataStore;
+use nexus_db_schema::schema::target_release::dsl;
+use tabled::Tabled;
+
+#[derive(Debug, Args, Clone)]
+pub(super) struct SystemVersionArgs {
+    /// List of target releases sorted from newest to oldest
+    #[clap(long)]
+    all: bool,
+}
+
+#[derive(Tabled)]
+#[tabled(rename_all = "SCREAMING_SNAKE_CASE")]
+struct SystemVersionRow {
+    system_version: String,
+    time_requested: String,
+}
+
+pub(super) async fn cmd_db_system_version(
+    opctx: &OpContext,
+    datastore: &DataStore,
+    fetch_opts: &DbFetchOptions,
+    args: &SystemVersionArgs,
+) -> Result<(), anyhow::Error> {
+    let releases = if args.all {
+        let limit = fetch_opts.fetch_limit;
+        let conn = datastore.pool_connection_for_tests().await?;
+        let releases: Vec<TargetRelease> = dsl::target_release
+            .select(TargetRelease::as_select())
+            .order_by(dsl::generation.desc())
+            .limit(i64::from(u32::from(limit)))
+            .load_async(&*conn)
+            .await
+            .context("listing target releases")?;
+        check_limit(&releases, limit, || {
+            String::from("listing target releases")
+        });
+        releases
+    } else {
+        vec![
+            datastore
+                .target_release_get_current(opctx)
+                .await
+                .context("fetching current target release")?,
+        ]
+    };
+
+    let mut rows = Vec::with_capacity(releases.len());
+    for release in releases {
+        let system_version = match release
+            .release_source()
+            .context("interpreting target release source")?
+        {
+            TargetReleaseSource::Unspecified => "<unspecified>".to_string(),
+            TargetReleaseSource::SystemVersion(tuf_repo_id) => datastore
+                .tuf_repo_get_version(opctx, &tuf_repo_id)
+                .await
+                .with_context(|| format!("fetching TUF repo {tuf_repo_id}"))?
+                .to_string(),
+        };
+        rows.push(SystemVersionRow {
+            system_version,
+            time_requested: datetime_rfc3339_concise(&release.time_requested),
+        });
+    }
+
+    let table = tabled::Table::new(rows)
+        .with(tabled::settings::Style::empty())
+        .with(tabled::settings::Padding::new(1, 1, 0, 0))
+        .to_string();
+
+    println!("{}", table);
+
+    Ok(())
+}

dev-tools/omdb/tests/usage_errors.out

@@ -142,6 +142,8 @@ Commands:
   sitreps                      Show the current history of fault management situation reports
   sleds                        Print information about sleds
   sled-instances               Show instances grouped by the sled they are running on
+  system-version               Print the current target system release and the update date (print
+                               all of the releases when `--all` is present)
   instance                     Print information about customer instances
   instances                    Alias to `omdb instance list`
   network                      Print information about the network
@@ -210,6 +212,8 @@ Commands:
   sitreps                      Show the current history of fault management situation reports
   sleds                        Print information about sleds
   sled-instances               Show instances grouped by the sled they are running on
+  system-version               Print the current target system release and the update date (print
+                               all of the releases when `--all` is present)
   instance                     Print information about customer instances
   instances                    Alias to `omdb instance list`
   network                      Print information about the network