From d2f423521ec76406944ad83098ec33afe20c692b Mon Sep 17 00:00:00 2001
From: Kim Altintop <kim@eagain.io>
Date: Mon, 9 Jan 2023 13:18:33 +0100
Subject: This is it

Squashed commit of all the exploration history. Development starts here.

Signed-off-by: Kim Altintop <kim@eagain.io>
---
 src/cmd/drop/serve.rs | 140 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 140 insertions(+)
 create mode 100644 src/cmd/drop/serve.rs

(limited to 'src/cmd/drop/serve.rs')

diff --git a/src/cmd/drop/serve.rs b/src/cmd/drop/serve.rs
new file mode 100644
index 0000000..7540d58
--- /dev/null
+++ b/src/cmd/drop/serve.rs
@@ -0,0 +1,140 @@
+// Copyright © 2022 Kim Altintop <kim@eagain.io>
+// SPDX-License-Identifier: GPL-2.0-only WITH openvpn-openssl-exception
+
+use std::{
+    fs::File,
+    io::Read,
+    path::PathBuf,
+    str::FromStr,
+};
+
+use clap::ValueHint;
+use url::Url;
+
+use super::Common;
+use crate::{
+    cfg,
+    cmd::{
+        self,
+        args::Refname,
+    },
+    http,
+    patches::{
+        REF_IT_BUNDLES,
+        REF_IT_PATCHES,
+        REF_IT_SEEN,
+    },
+};
+
+#[derive(Debug, clap::Args)]
+pub struct Serve {
+    #[clap(flatten)]
+    common: Common,
+    /// The directory where to write the bundle to
+    ///
+    /// Unless this is an absolute path, it is treated as relative to $GIT_DIR.
+    #[clap(
+        long,
+        value_parser,
+        value_name = "DIR",
+        default_value_os_t = cfg::paths::bundles().to_owned(),
+        value_hint = ValueHint::DirPath,
+    )]
+    bundle_dir: PathBuf,
+    /// Ref prefix under which to store the refs contained in patch bundles
+    #[clap(
+        long,
+        value_parser,
+        value_name = "REF",
+        default_value_t = Refname::from_str(REF_IT_BUNDLES).unwrap()
+    )]
+    unbundle_prefix: Refname,
+    /// The refname anchoring the seen objects tree
+    #[clap(
+        long,
+        value_parser,
+        value_name = "REF",
+        default_value_t = Refname::from_str(REF_IT_SEEN).unwrap()
+    )]
+    seen_ref: Refname,
+    /// 'host:port' to listen on
+    #[clap(
+        long,
+        value_parser,
+        value_name = "HOST:PORT",
+        default_value = "127.0.0.1:8084"
+    )]
+    listen: String,
+    /// Number of threads to use for the server
+    ///
+    /// If not set, the number of available cores is used.
+    #[clap(long, value_parser, value_name = "INT")]
+    threads: Option<usize>,
+    /// PEM-encoded TLS certificate
+    ///
+    /// Requires 'tls-key'. If not set (the default), the server will not use
+    /// TLS.
+    #[clap(
+        long,
+        value_parser,
+        value_name = "FILE",
+        requires = "tls_key",
+        value_hint = ValueHint::FilePath
+    )]
+    tls_cert: Option<PathBuf>,
+    /// PEM-encoded TLS private key
+    ///
+    /// Requires 'tls-cert'. If not set (the default), the server will not use
+    /// TLS.
+    #[clap(
+        long,
+        value_parser,
+        value_name = "FILE",
+        requires = "tls_cert",
+        value_hint = ValueHint::FilePath
+    )]
+    tls_key: Option<PathBuf>,
+    /// IPFS API to publish received patch bundle to
+    #[clap(
+        long,
+        value_parser,
+        value_name = "URL",
+        value_hint = ValueHint::Url,
+    )]
+    ipfs_api: Option<Url>,
+}
+
+#[derive(serde::Serialize)]
+pub struct Output;
+
+pub fn serve(args: Serve) -> cmd::Result<Output> {
+    let tls = args
+        .tls_cert
+        .map(|cert_path| -> cmd::Result<http::SslConfig> {
+            let mut certificate = Vec::new();
+            let mut private_key = Vec::new();
+            File::open(cert_path)?.read_to_end(&mut certificate)?;
+            File::open(args.tls_key.expect("presence of 'tls-key' ensured by clap"))?
+                .read_to_end(&mut private_key)?;
+
+            Ok(http::SslConfig {
+                certificate,
+                private_key,
+            })
+        })
+        .transpose()?;
+
+    http::serve(
+        args.listen,
+        http::Options {
+            git_dir: args.common.git_dir,
+            bundle_dir: args.bundle_dir,
+            unbundle_prefix: args.unbundle_prefix.into(),
+            drop_ref: REF_IT_PATCHES.into(),
+            seen_ref: args.seen_ref.into(),
+            threads: args.threads,
+            tls,
+            ipfs_api: args.ipfs_api,
+        },
+    )
+}
-- 
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