Wire in the conf file loading, assume PWD project

Load the configuration for the current directory. The project guessing
mechanism isn't here, yet, so this will have to do.

First take the properties set via Args. This will also capture the
values set through environment variables. For anything that's missing,
try to fill it with the info from the configuration files. In the event
that there isn't enough information, new error types have been added to
signal mis-use.

src/lib.rs

@@ -21,6 +21,9 @@ pub(crate) async fn decode_client_error(response: reqwest::Response) -> Result<A
 #[derive(Debug)]
 pub enum Error {
     Placeholder, // TODO: Enumerate error modes
+    MissingGiteaUrl, // the gitea URL wasn't specified on the CLI, env, or config file.
+    MissingRepoFRQN, // either the owner, repo, or both weren't specified in the loaded PartialConfig
+    WrappedConfigErr(config::Error),
     WrappedReqwestErr(reqwest::Error),
     MissingAuthToken,
     NoSuchFile, // for release attachment 'file exists' pre-check.
@@ -34,4 +37,10 @@ impl From<reqwest::Error> for crate::Error {
     }
 }
 
+impl From<crate::config::Error> for crate::Error {
+    fn from(value: crate::config::Error) -> Self {
+        Self::WrappedConfigErr(value)
+    }
+}
+
 type Result<T> = core::result::Result<T, Error>;

src/main.rs

@@ -12,6 +12,34 @@ use reqwest::header::ACCEPT;
 async fn main() -> Result<(), gt_tool::Error> {
     let args = Args::parse();
 
+    // TODO: Heuristics to guess project path
+    // See issue #8: https://git.gelvin.dev/robert/gt-tool/issues/8
+    let pwd = std::env::current_dir()
+        .map_err(|_e| gt_tool::Error::WrappedConfigErr(
+            gt_tool::config::Error::CouldntReadFile
+        ))?;
+    let config = gt_tool::config::get_config(
+        pwd.to_str().expect("I assumed the path can be UTF-8, but that didn't work out..."),
+        gt_tool::config::default_paths()
+    )?;
+    println!("->> Loaded Config: {config:?}");
+    // arg parser also checks the environment. Prefer CLI/env, then config file.
+    let gitea_url = args.gitea_url.or(config.gitea_url).ok_or(gt_tool::Error::MissingGiteaUrl)?;
+    // Config files split the repo FQRN into "owner" and "repo" (confusing naming, sorry)
+    // These must be merged back together and passed along.
+    let conf_fqrn = config.owner
+        .ok_or(gt_tool::Error::MissingRepoFRQN)
+        .and_then(| mut own| {
+            let repo = config.repo.ok_or(gt_tool::Error::MissingRepoFRQN)?;
+            own.push_str("/");
+            own.push_str(&repo);
+            Ok(own)
+        });
+    let repo_fqrn  = args.repo
+        .ok_or(gt_tool::Error::MissingRepoFRQN)
+        .or(conf_fqrn)?;
+
+
     let mut headers = reqwest::header::HeaderMap::new();
     headers.append(ACCEPT, header::HeaderValue::from_static("application/json"));
 
@@ -28,7 +56,7 @@ async fn main() -> Result<(), gt_tool::Error> {
     match args.command {
         gt_tool::cli::Commands::ListReleases => {
             let releases =
-                gt_tool::api::release::list_releases(&client, &args.gitea_url, &args.repo).await?;
+                gt_tool::api::release::list_releases(&client, &gitea_url, &repo_fqrn).await?;
             // Print in reverse order so the newest items are closest to the
             // user's command prompt. Otherwise the newest item scrolls off the
             // screen and can't be seen.
@@ -54,7 +82,7 @@ async fn main() -> Result<(), gt_tool::Error> {
                 tag_name,
                 target_commitish,
             };
-            gt_tool::api::release::create_release(&client, &args.gitea_url, &args.repo, submission)
+            gt_tool::api::release::create_release(&client, &gitea_url, &repo_fqrn, submission)
                 .await?;
         }
         gt_tool::cli::Commands::UploadRelease {
@@ -75,7 +103,7 @@ async fn main() -> Result<(), gt_tool::Error> {
             // Grab all, find the one that matches the input tag.
             // Scream if there are multiple matches.
             let release_candidates =
-                gt_tool::api::release::list_releases(&client, &args.gitea_url, &args.repo).await?;
+                gt_tool::api::release::list_releases(&client, &gitea_url, &repo_fqrn).await?;
 
             if let Some(release) = match_release_by_tag(&tag_name, release_candidates) {
                 for file in &files {
@@ -94,8 +122,8 @@ async fn main() -> Result<(), gt_tool::Error> {
                 for file in files {
                     let _attach_desc = gt_tool::api::release_attachment::create_release_attachment(
                         &client,
-                        &args.gitea_url,
-                        &args.repo,
+                        &gitea_url,
+                        &repo_fqrn,
                         release.id,
                         file,
                     )