Merge branch 'liw/schema-refactor' into 'main'

add backup database schema to evolove; break server database

Closes #194 and #192

See merge request obnam/obnam!222

1 files changed, 40 insertions, 0 deletions

diff --git a/src/cmd/inspect.rs b/src/cmd/inspect.rs
new file mode 100644
index 0000000..d5a75c6
--- /dev/null
+++ b/src/cmd/inspect.rs
@@ -0,0 +1,40 @@
+//! The `inspect` subcommand.
+
+use crate::client::BackupClient;
+use crate::config::ClientConfig;
+use crate::error::ObnamError;
+
+use log::info;
+use structopt::StructOpt;
+use tempfile::NamedTempFile;
+use tokio::runtime::Runtime;
+
+/// Make a backup.
+#[derive(Debug, StructOpt)]
+pub struct Inspect {
+    /// Reference to generation to inspect.
+    #[structopt()]
+    gen_id: String,
+}
+
+impl Inspect {
+    /// Run the command.
+    pub fn run(&self, config: &ClientConfig) -> Result<(), ObnamError> {
+        let rt = Runtime::new()?;
+        rt.block_on(self.run_async(config))
+    }
+
+    async fn run_async(&self, config: &ClientConfig) -> Result<(), ObnamError> {
+        let temp = NamedTempFile::new()?;
+        let client = BackupClient::new(config)?;
+        let genlist = client.list_generations().await?;
+        let gen_id = genlist.resolve(&self.gen_id)?;
+        info!("generation id is {}", gen_id.as_chunk_id());
+
+        let gen = client.fetch_generation(&gen_id, temp.path()).await?;
+        let meta = gen.meta()?;
+        println!("schema_version: {}", meta.schema_version());
+
+        Ok(())
+    }
+}