feat(client-cli): implement download of Cardano node distribution to retrieve the snapshot-converter binary

Author: dlachaume

Cargo.lock

@@ -38,6 +38,13 @@ indicatif = { version = "0.17.11", features = ["tokio"] }
 mithril-cli-helper = { path = "../internal/mithril-cli-helper" }
 mithril-client = { path = "../mithril-client", features = ["fs", "unstable"] }
 mithril-doc = { path = "../internal/mithril-doc" }
+reqwest = { workspace = true, features = [
+    "default",
+    "gzip",
+    "zstd",
+    "deflate",
+    "brotli"
+] }
 serde = { workspace = true }
 serde_json = { workspace = true }
 slog = { workspace = true, features = [
@@ -52,3 +59,4 @@ tokio = { workspace = true, features = ["macros", "rt-multi-thread"] }
 
 [dev-dependencies]
 mithril-common = { path = "../mithril-common", features = ["test_tools"] }
+mockall = { workspace = true }

mithril-client-cli/Cargo.toml

@@ -5,10 +5,10 @@
 
 mod snapshot_converter;
 
-use mithril_client::MithrilResult;
 pub use snapshot_converter::*;
 
 use clap::Subcommand;
+use mithril_client::MithrilResult;
 
 /// Tools commands
 #[derive(Subcommand, Debug, Clone)]

mithril-client-cli/src/commands/tools/mod.rs

@@ -1,13 +1,236 @@
-use clap::Parser;
+use std::{
+    env, fmt,
+    path::{Path, PathBuf},
+};
+
+use anyhow::{anyhow, Context};
+use clap::{Parser, ValueEnum};
 
 use mithril_client::MithrilResult;
 
+use crate::utils::{
+    GitHubReleaseRetriever, HttpDownloader, ReqwestGitHubApiClient, ReqwestHttpDownloader,
+};
+
+const GITHUB_ORGANIZATION: &str = "IntersectMBO";
+const GITHUB_REPOSITORY: &str = "cardano-node";
+
+const LATEST_DISTRIBUTION_TAG: &str = "latest";
+const PRERELEASE_DISTRIBUTION_TAG: &str = "prerelease";
+
+const CARDANO_DISTRIBUTION_TEMP_DIR: &str = "cardano-node-distribution-tmp";
+
+#[derive(Debug, Clone, ValueEnum)]
+enum UTxOHDFlavor {
+    #[clap(name = "Legacy")]
+    Legacy,
+    #[clap(name = "LMDB")]
+    Lmdb,
+}
+
+impl fmt::Display for UTxOHDFlavor {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            Self::Legacy => write!(f, "Legacy"),
+            Self::Lmdb => write!(f, "LMDB"),
+        }
+    }
+}
+
+/// Clap command to convert a restored `InMemory` Mithril snapshot to another flavor.
 #[derive(Parser, Debug, Clone)]
-pub struct SnapshotConverterCommand {}
+pub struct SnapshotConverterCommand {
+    /// Path to the Cardano node database directory.
+    #[clap(long)]
+    db_directory: PathBuf,
+
+    /// Cardano node version of the Mithril signed snapshot.
+    ///
+    /// `latest` and `prerelease` are also supported to download the latest or preprelease distribution.
+    #[clap(long)]
+    cardano_node_version: String,
+
+    /// UTxO-HD flavor to convert the ledger snapshot to.
+    #[clap(long)]
+    utxo_hd_flavor: UTxOHDFlavor,
+}
 
 impl SnapshotConverterCommand {
     /// Main command execution
     pub async fn execute(&self) -> MithrilResult<()> {
-        todo!()
+        let distribution_temp_dir = self.db_directory.join(CARDANO_DISTRIBUTION_TEMP_DIR);
+        std::fs::create_dir(&distribution_temp_dir).with_context(|| {
+            format!(
+                "Failed to create directory: {}",
+                distribution_temp_dir.display()
+            )
+        })?;
+
+        let archive_path = Self::download_cardano_node_distribution(
+            ReqwestGitHubApiClient::new()?,
+            ReqwestHttpDownloader::new()?,
+            &self.cardano_node_version,
+            &distribution_temp_dir,
+        )
+        .await
+        .with_context(|| {
+            "Failed to download 'snapshot-converter' binary from Cardano node distribution"
+        })?;
+
+        Ok(())
+    }
+
+    async fn download_cardano_node_distribution(
+        github_api_client: impl GitHubReleaseRetriever,
+        http_downloader: impl HttpDownloader,
+        tag: &str,
+        target_dir: &Path,
+    ) -> MithrilResult<PathBuf> {
+        let release = match tag {
+            LATEST_DISTRIBUTION_TAG => github_api_client
+                .get_latest_release(GITHUB_ORGANIZATION, GITHUB_REPOSITORY)
+                .await
+                .with_context(|| "Failed to get latest release")?,
+            PRERELEASE_DISTRIBUTION_TAG => github_api_client
+                .get_prerelease(GITHUB_ORGANIZATION, GITHUB_REPOSITORY)
+                .await
+                .with_context(|| "Failed to get prerelease")?,
+            _ => github_api_client
+                .get_release_by_tag(GITHUB_ORGANIZATION, GITHUB_REPOSITORY, tag)
+                .await
+                .with_context(|| format!("Failed to get release by tag: {}", tag))?,
+        };
+
+        let asset = release
+            .get_asset_for_os(env::consts::OS)?
+            .ok_or_else(|| anyhow!("No asset found for platform: {}", env::consts::OS))
+            .with_context(|| {
+                format!(
+                    "Failed to find asset for current platform: {}",
+                    env::consts::OS
+                )
+            })?;
+
+        let archive_path = http_downloader
+            .download_file(asset.browser_download_url.parse()?, target_dir, &asset.name)
+            .await?;
+
+        Ok(archive_path)
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use mockall::predicate::eq;
+    use reqwest::Url;
+
+    use mithril_common::temp_dir_create;
+
+    use crate::utils::{GitHubRelease, MockGitHubReleaseRetriever, MockHttpDownloader};
+
+    use super::*;
+
+    #[tokio::test]
+    async fn call_get_latest_release_with_latest_tag() {
+        let temp_dir = temp_dir_create!();
+        let release = GitHubRelease::dummy_with_all_supported_assets();
+        let asset = release.get_asset_for_os(env::consts::OS).unwrap().unwrap();
+
+        let cloned_release = release.clone();
+        let mut github_api_client = MockGitHubReleaseRetriever::new();
+        github_api_client
+            .expect_get_latest_release()
+            .with(eq(GITHUB_ORGANIZATION), eq(GITHUB_REPOSITORY))
+            .returning(move |_, _| Ok(cloned_release.clone()));
+
+        let mut http_downloader = MockHttpDownloader::new();
+        http_downloader
+            .expect_download_file()
+            .with(
+                eq(Url::parse(&asset.browser_download_url).unwrap()),
+                eq(temp_dir.clone()),
+                eq(asset.name.clone()),
+            )
+            .returning(|_, _, _| Ok(PathBuf::new()));
+
+        SnapshotConverterCommand::download_cardano_node_distribution(
+            github_api_client,
+            http_downloader,
+            LATEST_DISTRIBUTION_TAG,
+            &temp_dir,
+        )
+        .await
+        .unwrap();
+    }
+
+    #[tokio::test]
+    async fn call_get_prerelease_with_prerelease_tag() {
+        let temp_dir = temp_dir_create!();
+        let release = GitHubRelease::dummy_with_all_supported_assets();
+        let asset = release.get_asset_for_os(env::consts::OS).unwrap().unwrap();
+
+        let cloned_release = release.clone();
+        let mut github_api_client = MockGitHubReleaseRetriever::new();
+        github_api_client
+            .expect_get_prerelease()
+            .with(eq(GITHUB_ORGANIZATION), eq(GITHUB_REPOSITORY))
+            .returning(move |_, _| Ok(cloned_release.clone()));
+
+        let mut http_downloader = MockHttpDownloader::new();
+        http_downloader
+            .expect_download_file()
+            .with(
+                eq(Url::parse(&asset.browser_download_url).unwrap()),
+                eq(temp_dir.clone()),
+                eq(asset.name.clone()),
+            )
+            .returning(|_, _, _| Ok(PathBuf::new()));
+
+        SnapshotConverterCommand::download_cardano_node_distribution(
+            github_api_client,
+            http_downloader,
+            PRERELEASE_DISTRIBUTION_TAG,
+            &temp_dir,
+        )
+        .await
+        .unwrap();
+    }
+
+    #[tokio::test]
+    async fn call_get_release_by_tag_with_specific_cardano_node_version() {
+        let cardano_node_version = "10.3.1";
+        let temp_dir = temp_dir_create!();
+        let release = GitHubRelease::dummy_with_all_supported_assets();
+        let asset = release.get_asset_for_os(env::consts::OS).unwrap().unwrap();
+
+        let cloned_release = release.clone();
+        let mut github_api_client = MockGitHubReleaseRetriever::new();
+        github_api_client
+            .expect_get_release_by_tag()
+            .with(
+                eq(GITHUB_ORGANIZATION),
+                eq(GITHUB_REPOSITORY),
+                eq(cardano_node_version),
+            )
+            .returning(move |_, _, _| Ok(cloned_release.clone()));
+
+        let mut http_downloader = MockHttpDownloader::new();
+        http_downloader
+            .expect_download_file()
+            .with(
+                eq(Url::parse(&asset.browser_download_url).unwrap()),
+                eq(temp_dir.clone()),
+                eq(asset.name.clone()),
+            )
+            .returning(|_, _, _| Ok(PathBuf::new()));
+
+        SnapshotConverterCommand::download_cardano_node_distribution(
+            github_api_client,
+            http_downloader,
+            cardano_node_version,
+            &temp_dir,
+        )
+        .await
+        .unwrap();
     }
 }

mithril-client-cli/src/commands/tools/snapshot_converter.rs

@@ -298,8 +298,6 @@ mod tests {
             "snapshot-converter",
             "--db-directory",
             "whatever",
-            "--cardano-network",
-            "preview",
             "--cardano-node-version",
             "1.2.3",
             "--utxo-hd-flavor",