feat(server): reload .git-next.toml from repo when main branch updated

Only does this if the repo config (i.e. the main, next and dev branches) are detailed in the
.git-next.toml file within the repo, rather than in the git-next-server.toml file.

Closes kemitix/git-next#74

src/server/actors/repo/branch.rs

@@ -5,8 +5,9 @@ use actix::prelude::*;
 use tracing::{info, warn};
 
 use crate::server::{
-    actors::repo::{RepoActor, ValidateRepo},
-    config, gitforge,
+    actors::repo::{LoadConfigFromRepo, RepoActor, ValidateRepo},
+    config::{self, RepoConfigSource},
+    gitforge,
 };
 
 // advance next to the next commit towards the head of the dev branch
@@ -89,7 +90,10 @@ pub async fn advance_main(
     ) {
         warn!(?err, "Failed")
     };
-    addr.do_send(ValidateRepo { message_token })
+    match repo_config.source() {
+        RepoConfigSource::Repo => addr.do_send(LoadConfigFromRepo),
+        RepoConfigSource::Server => addr.do_send(ValidateRepo { message_token }),
+    }
 }
 
 #[cfg(test)]

src/server/config/mod.rs

@@ -95,20 +95,25 @@ impl ServerStorage {
 #[derive(Clone, Debug, PartialEq, Eq, Deserialize)]
 pub struct RepoConfig {
     branches: RepoBranches,
+    source: RepoConfigSource,
 }
 impl RepoConfig {
     #[cfg(test)]
-    pub const fn new(branches: RepoBranches) -> Self {
-        Self { branches }
+    pub const fn new(branches: RepoBranches, source: RepoConfigSource) -> Self {
+        Self { branches, source }
     }
-    // #[cfg(test)]
+
     pub fn load(toml: &str) -> Result<Self> {
-        toml::from_str(toml).map_err(Into::into)
+        toml::from_str(format!("source = \"Repo\"\n{}", toml).as_str()).map_err(Into::into)
     }
 
     pub const fn branches(&self) -> &RepoBranches {
         &self.branches
     }
+
+    pub const fn source(&self) -> RepoConfigSource {
+        self.source
+    }
 }
 impl Display for RepoConfig {
     fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
@@ -116,6 +121,12 @@ impl Display for RepoConfig {
     }
 }
 
+#[derive(Copy, Clone, Debug, PartialEq, Eq, Deserialize)]
+pub enum RepoConfigSource {
+    Repo,
+    Server,
+}
+
 /// Mapped from `.git-next.toml` file at `branches`
 #[derive(Clone, Debug, PartialEq, Eq, Deserialize)]
 pub struct RepoBranches {
@@ -232,6 +243,7 @@ impl ServerRepoConfig {
                     next: next.to_string(),
                     dev: dev.to_string(),
                 },
+                source: RepoConfigSource::Server,
             }),
             _ => None,
         }

src/server/config/tests.rs

@@ -105,6 +105,7 @@ fn load_should_parse_server_config() -> Result<()> {
                     next: "upcoming".to_string(),
                     dev: "sam-dev".to_string(),
                 },
+                source: RepoConfigSource::Server,
             });
             assert_eq!(repo_config, expected, "RepoConfig");
         }
@@ -115,8 +116,7 @@ fn load_should_parse_server_config() -> Result<()> {
 
 #[test]
 fn test_repo_config_load() -> Result<()> {
-    let toml = r#"
-            [branches]
+    let toml = r#"[branches]
             main = "main"
             next = "next"
             dev = "dev"
@@ -133,6 +133,7 @@ fn test_repo_config_load() -> Result<()> {
                 next: "next".to_string(),
                 dev: "dev".to_string(),
             },
+            source: RepoConfigSource::Repo
         }
     );
 

src/server/gitforge/tests/common.rs

@@ -1,7 +1,7 @@
 use crate::server::{
     config::{
         ApiToken, BranchName, ForgeDetails, ForgeName, ForgeType, GitDir, Hostname, RepoAlias,
-        RepoBranches, RepoConfig, RepoDetails, RepoPath, User,
+        RepoBranches, RepoConfig, RepoConfigSource, RepoDetails, RepoPath, User,
     },
     types::ServerGeneration,
 };
@@ -61,10 +61,9 @@ pub fn repo_alias(n: u32) -> RepoAlias {
     RepoAlias(format!("repo-alias-{}", n))
 }
 
-pub fn repo_config(n: u32) -> RepoConfig {
-    RepoConfig::new(RepoBranches::new(
-        format!("main-{n}"),
-        format!("next-{n}"),
-        format!("dev-{n}"),
-    ))
+pub fn repo_config(n: u32, source: RepoConfigSource) -> RepoConfig {
+    RepoConfig::new(
+        RepoBranches::new(format!("main-{n}"), format!("next-{n}"), format!("dev-{n}")),
+        source,
+    )
 }

src/server/gitforge/tests/forgejo.rs

@@ -3,7 +3,7 @@ use assert2::let_assert;
 use kxio::network::{MockNetwork, StatusCode};
 
 use crate::server::{
-    config::{BranchName, ForgeType},
+    config::{BranchName, ForgeType, RepoConfigSource},
     types::ServerGeneration,
 };
 
@@ -19,7 +19,7 @@ fn test_name() {
         1,
         ServerGeneration::new(),
         common::forge_details(1, ForgeType::MockForge),
-        Some(common::repo_config(1)),
+        Some(common::repo_config(1, RepoConfigSource::Repo)),
         GitDir::new(fs.base()),
     );
     let forge = Forge::new_forgejo(repo_details, net);
@@ -46,7 +46,7 @@ async fn test_branches_get() {
         1,
         ServerGeneration::new(),
         common::forge_details(1, ForgeType::MockForge),
-        Some(common::repo_config(1)),
+        Some(common::repo_config(1, RepoConfigSource::Repo)),
         GitDir::new(fs.base()),
     );