Use pre Rust 1.81 compatible file-exists test

The function `std::fs::exists(...)` was stabilized in Rust 1.81, which
means it can't be used in the Debian Bookworm build. This patch swaps to
a compatible implementation leaning on the std::path::Path struct.

I'm both "upstreaming" a Debian-specific patch I had to make for the
package, and fixing the additional usage now in `main.rs`. There doesn't
seem to be any compelling reason to avoid using this function, so I
figure I should merge it into the base release.

README.md

@@ -51,14 +51,3 @@ One of these, defaults to `help`:
 | upload-release | Uploads one-or-more files to an existing release, identified by it's tag name. |
 | help | prints the help text (the usage summary above). |
 
-## Unit Testing
-
-The unit test~~s~~ require a Gitea server to execute against. This information is supplied by environment variables rather than on the command line, but it is otherwise exactly the same usage.
-
-| Variable | Description |
-|-|-|
-| TEST_GITEA_SERVER | Server URL, match `-u`, `--url` |
-| TEST_GITEA_REPO | Owner + repo name, match `-u` `--repo` |
-| TEST_GITEA_KEY | API key, match `RELEASE_KEY_GITEA`. The use of a new variable for the API token is to help avoid accidentally touching a production environment during test execution. |
-| TEST_GITEA_RELEASE_TAG | Git tag used to identify the Release. Same as `upload-release`'s positional argument `<TAG_NAME>`. |
-

src/api/release.rs

@@ -1,9 +1,7 @@
-use serde::{Deserialize, Serialize};
 
 use crate::{
-    ApiError, Result,
+    Result,
     structs::{
-        self,
         release::{CreateReleaseOption, Release},
     },
 };
@@ -23,6 +21,7 @@ pub async fn list_releases(
     let request_url = format!("{gitea_url}/api/v1/repos/{repo}/releases/");
     let req = client.get(request_url).send().await;
     let response = req.map_err(|reqwest_err| crate::Error::WrappedReqwestErr(reqwest_err))?;
+    if response.status().is_success() {
         let release_list = response
             .json::<Vec<Release>>()
             .await
@@ -32,14 +31,11 @@ pub async fn list_releases(
                 crate::Error::WrappedReqwestErr(reqwest_err)
             })?;
         return Ok(release_list);
-}
+    } else if response.status().is_client_error() {
-
+        let mesg = crate::decode_client_error(response).await?;
-#[derive(Debug, Deserialize, Serialize)]
+        return Err(crate::Error::ApiErrorMessage(mesg));
-#[serde(untagged)]
+    }
-enum CreateResult {
+    panic!("Reached end of list_releases without matching a return pathway.");
-    Success(structs::release::Release),
-    ErrWithMessage(ApiError),
-    Empty,
 }
 
 pub async fn create_release(
@@ -49,27 +45,23 @@ pub async fn create_release(
     submission: CreateReleaseOption,
 ) -> Result<Release> {
     let request_url = format!("{gitea_url}/api/v1/repos/{repo}/releases");
-    let req = client
+    let response = client
         .post(request_url)
         .json(&submission)
         .send()
         .await
         .map_err(|e| crate::Error::from(e))?;
-    let new_release = req
+    if response.status().is_success() {
-        .json::<CreateResult>()
+        let new_release = response
+            .json::<Release>()
             .await
             .map_err(|e| crate::Error::from(e))?;
-    match new_release {
+        return Ok(new_release);
-        CreateResult::Success(release) => Ok(release),
+    } else if response.status().is_client_error() {
-        CreateResult::ErrWithMessage(api_error) => {
+        let mesg = crate::decode_client_error(response).await?;
-            if api_error.message == "token is required" {
+        return Err(crate::Error::ApiErrorMessage(mesg))
-                Err(crate::Error::MissingAuthToken)
-            } else {
-                Err(crate::Error::ApiErrorMessage(api_error))
-            }
-        }
-        CreateResult::Empty => panic!("How can we have 200 OK and no release info? No. Crash"),
     }
+    panic!("Reached end of create_release without matching a return path");
 }
 pub fn edit_release(id: u64) -> Result<Release> {
     todo!();

src/api/release_attachment.rs

@@ -1,4 +1,6 @@
-use std::fs;
+use std::{fs, path};
+
+use crate::structs::Attachment;
 
 pub fn check_release_match_repo() {}
 pub fn get_release_attachment() {}
@@ -10,23 +12,20 @@ pub async fn create_release_attachment(
     gitea_url: &str,
     repo: &str,
     release_id: usize,
-    files: Vec<String>,
+    file: String,
-) -> crate::Result<()> {
+) -> crate::Result<Attachment> {
     let request_url = format!("{gitea_url}/api/v1/repos/{repo}/releases/{release_id}/assets");
 
-    // Ensure all files exists before starting the uploads
+    let path = path::Path::new(&file);
-    for file in &files {
+    match path.try_exists() {
-        match fs::exists(file) {
+        Ok(true) => (),
-            Ok(true) => continue,
         Ok(false) => return Err(crate::Error::NoSuchFile),
         Err(e) => {
             eprintln!("Uh oh! The file-exists check couldn't be done: {e}");
             panic!("TODO: Deal with scenario where the file's existence cannot be checked (e.g.: no permission)");
         },
     }
-    }
 
-    for file in files {
     println!("Uploading file {}", &file);
     let data = reqwest::multipart::Part::stream(fs::read(&file).unwrap())
         .file_name("attachment")
@@ -34,150 +33,24 @@ pub async fn create_release_attachment(
 
     let form = reqwest::multipart::Form::new().part("attachment", data);
 
-        let request = client
+    let response = client
         .post(&request_url)
         .multipart(form)
         .query(&[("name", file.split("/").last())])
         .send()
         .await?;
+    if response.status().is_success() {
+        // TODO: create a struct Attachment and return it to the caller.
+        let attachment_desc = response
+            .json::<Attachment>()
+            .await
+            .map_err(|e| crate::Error::from(e))?;
+        return Ok(attachment_desc);
+    } else if response.status().is_client_error() {
+        let mesg = crate::decode_client_error(response).await?;
+        return Err(crate::Error::ApiErrorMessage(mesg));
     }
-    Ok(())
+    panic!("Reached end of release_attachment without matching a return path");
 }
 pub fn edit_release_attachment() {}
 pub fn delete_release_attachment() {}
-
-#[cfg(test)]
-mod tests {
-    use reqwest::header::{self, ACCEPT};
-
-    use crate::structs::release::Release;
-
-
-    #[tokio::test]
-    async fn attach_file_exists() {
-        let conf = TestConfig::new();
-        let release_candidates =
-            crate::api::release::list_releases(
-                &conf.client,
-                &conf.server,
-                &conf.repo
-            )
-            .await
-            .expect("Failed to get releases. Pre-conditions unmet, aborting test!");
-
-        let release = match_release_by_tag(&conf.release_tag, release_candidates)
-            .expect("Failed to select matching release. Pre-conditions unmet, aborting test!");
-        
-        let api_result = super::create_release_attachment(
-            &conf.client,
-            &conf.server,
-            &conf.repo,
-            release.id,
-            vec![String::from("Cargo.toml")],
-        )
-        .await;
-    }
-
-    #[tokio::test]
-    async fn attach_file_missing() {
-        let conf = TestConfig::new();
-        let release_candidates =
-            crate::api::release::list_releases(
-                &conf.client,
-                &conf.server,
-                &conf.repo
-            )
-            .await
-            .expect("Failed to get releases. Pre-conditions unmet, aborting test!");
-
-        let release = match_release_by_tag(&conf.release_tag, release_candidates)
-            .expect("Failed to select matching release. Pre-conditions unmet, aborting test!");
-        
-        let api_result = super::create_release_attachment(
-            &conf.client,
-            &conf.server,
-            &conf.repo,
-            release.id,
-            vec![String::from("./this-file-doesnt-exist")],
-        )
-        .await;
-        let api_err = api_result.expect_err("Received Ok(()) after uploading non-existent file. That's nonsense, the API Function is wrong.");
-        match api_err {
-            crate::Error::Placeholder => panic!("Received dummy response from the API function. Finish implementing it, stupid"),
-            crate::Error::WrappedReqwestErr(error) => panic!("Received a reqwest::Error from the API function: {error}"),
-            crate::Error::MissingAuthToken => unreachable!("Missing auth token... in a unit test that already panics without the auth token..."),
-            crate::Error::NoSuchFile => (), // test passes
-            crate::Error::ApiErrorMessage(api_error) => panic!("Received an error message from the API: {api_error:?}"),
-        }
-    }
-
-    struct TestConfig {
-        server: String,
-        repo: String,
-        release_tag: String,
-        client: reqwest::Client,
-    }
-
-    impl TestConfig {
-        fn new() -> Self {
-            let server = std::env::var("TEST_GITEA_SERVER")
-                .expect("Must set server address in env var \"TEST_GITEA_SERVER\"");
-            let repo = std::env::var("TEST_GITEA_REPO")
-                .expect("Must set <user>/<repo> name in env var \"TEST_GITEA_REPO\"");
-            let token = format!(
-                "token {}",
-                std::env::var("TEST_GITEA_KEY")
-                    .expect("Must set the API token in env var \"TEST_GITEA_KEY\"")
-            );
-            let release_tag = std::env::var("TEST_GITEA_RELEASE_TAG")
-                .expect("Must set the target release tag in env var \"TEST_GITEA_RELEASE_TAG\"");
-
-            let mut headers = reqwest::header::HeaderMap::new();
-            headers.append(ACCEPT, header::HeaderValue::from_static("application/json"));
-            headers.append("Authorization", token.parse().unwrap());
-
-            let client = reqwest::Client::builder()
-                .user_agent(format!(
-                    "gt-tools-autotest-agent{}",
-                    env!("CARGO_PKG_VERSION")
-                ))
-                .default_headers(headers)
-                .build()
-                .expect("Failed to build reqwest::Client.");
-
-            return Self {
-                server,
-                repo,
-                release_tag,
-                client
-            };
-        }
-    }
-
-    // Testing utils
-    fn match_release_by_tag(tag: &String, releases: Vec<Release>) -> Option<Release> {
-        let mut release: Option<Release> = None;
-        for rel in releases {
-            if rel.tag_name == *tag {
-                // Only store the value if one hasn't been stored already
-                if let Some(first_release) = &release {
-                    // if there was already a match, begin the error diagnostic creation.
-                    let first_id = first_release.id;
-                    let second_id = rel.id;
-                    assert!(
-                        first_id != second_id,
-                        "FAILURE: Found the same release ID twice while scanning for duplicate tags. How did we get the same one twice?"
-                    );
-                    eprintln!("ERROR: Two releases have been found for the tag \"{tag}\".");
-                    eprintln!("ERROR:    first ID: {first_id}");
-                    eprintln!("ERROR:    second ID: {second_id}");
-                    panic!("ERROR: Nonsense detected, I'm bailing out!");
-                } else {
-                    // else, store our first (and hopefully only) match
-                    release = Some(rel);
-                }
-            }
-        }
-        return release;
-    }
-}

src/lib.rs

@@ -10,6 +10,15 @@ pub struct ApiError {
     url: String,
 }
 
+pub (crate) async fn decode_client_error(response: reqwest::Response) -> Result<ApiError> {
+    response
+        .json::<ApiError>()
+        .await
+        .map_err(|reqwest_err| {
+            crate::Error::WrappedReqwestErr(reqwest_err)
+        })
+}
+
 #[derive(Debug)]
 pub enum Error {
     Placeholder, // TODO: Enumerate error modes

src/main.rs

@@ -1,3 +1,6 @@
+
+use std::path;
+
 use gt_tool::cli::Args;
 use gt_tool::structs::release::{CreateReleaseOption, Release};
 
@@ -78,14 +81,27 @@ async fn main() -> Result<(), gt_tool::Error> {
                 gt_tool::api::release::list_releases(&client, &args.gitea_url, &args.repo).await?;
 
             if let Some(release) = match_release_by_tag(&tag_name, release_candidates) {
-                gt_tool::api::release_attachment::create_release_attachment(
+                for file in &files {
+                    let path = path::Path::new(&file);
+                    match path.try_exists() {
+                        Ok(true) => continue,
+                        Ok(false) => return Err(gt_tool::Error::NoSuchFile),
+                        Err(e) => {
+                            eprintln!("Uh oh! The file-exists check couldn't be done: {e}");
+                            panic!("TODO: Deal with scenario where the file's existence cannot be checked (e.g.: no permission)");
+                        },
+                    }
+                }
+                for file in files {
+                    let _attach_desc = gt_tool::api::release_attachment::create_release_attachment(
                         &client,
                         &args.gitea_url,
                         &args.repo,
                         release.id,
-                    files,
+                        file,
                     )
                     .await?;
+                }
             } else {
                 println!("ERR: Couldn't find a release matching the tag \"{tag_name}\".");
                 return Err(gt_tool::Error::NoSuchRelease);

src/structs/mod.rs

@@ -1,2 +1,15 @@
+use serde::{Deserialize, Serialize};
+
 pub mod release;
 pub mod repo;
+
+#[derive(Debug, Deserialize, Serialize)]
+pub struct Attachment {
+    id: usize,
+    name: String,
+    size: i64,
+    download_count: i64,
+    created: String, // TODO: Date-time struct
+    uuid: String,
+    download_url: String,
+}