frontend successfully lists sessions !!

src-tauri/Cargo.lock

@@ -1021,6 +1021,7 @@ dependencies = [
  "tauri-plugin-log",
  "tauri-plugin-window-state",
  "uuid 1.3.0",
+ "walkdir",
  "yrs",
 ]
 

src-tauri/Cargo.toml

@@ -29,6 +29,7 @@ filetime = "0.2.19"
 sha2 = "0.10.6"
 sentry-tauri = "0.1.0"
 sentry = "0.27"
+walkdir = "2.3.2"
 
 [features]
 # by default Tauri runs in production mode

src-tauri/src/deltas.rs

@@ -224,6 +224,10 @@ pub fn save_current_file_deltas(
 
 pub fn list_current_deltas(project_path: &Path) -> Result<HashMap<String, Vec<Delta>>, Error> {
     let deltas_path = project_path.join(".git/gb/session/deltas");
+    if !deltas_path.exists() {
+        return Ok(HashMap::new());
+    }
+
     let file_paths = fs::list_files(&deltas_path).map_err(|e| Error {
         message: format!("Could not list delta files at {}", deltas_path.display()),
         cause: e.into(),

src-tauri/src/fs.rs

@@ -1,41 +1,19 @@
-use std::{fs, path::Path};
+use std::path::Path;
 
-fn list_files_abs(dir_path: &Path) -> Result<Vec<String>, std::io::Error> {
-    let mut files = Vec::new();
-    if dir_path.is_dir() {
-        for entry in fs::read_dir(dir_path)? {
+use walkdir::WalkDir;
+
+// Returns an ordered list of relative paths for files inside a directory recursively.
+pub fn list_files(dir_path: &Path) -> Result<Vec<String>, std::io::Error> {
+    let mut files = vec![];
+    for entry in WalkDir::new(dir_path) {
         let entry = entry?;
+        if entry.file_type().is_file() {
             let path = entry.path();
-            if path.is_dir() {
-                let mut sub_files = list_files(&path)?;
-                files.append(&mut sub_files);
-            } else {
-                match path.to_str() {
-                    Some(path) => files.push(path.to_string()),
-                    None => {
-                        return Err(std::io::Error::new(
-                            std::io::ErrorKind::Other,
-                            "Invalid path",
-                        ))
-                    }
-                }
-            }
+            let path = path.strip_prefix(dir_path).unwrap();
+            let path = path.to_str().unwrap().to_string();
+            files.push(path);
         }
     }
     files.sort();
     Ok(files)
 }
-
-// Returns an ordered list of relative paths for files inside a directory recursively.
-pub fn list_files(dir_path: &Path) -> Result<Vec<String>, std::io::Error> {
-    list_files_abs(dir_path).map(|files| {
-        files
-            .iter()
-            .filter_map(|file| {
-                let file_path = Path::new(file);
-                let relative_path = file_path.strip_prefix(dir_path).ok()?;
-                relative_path.to_str().map(|s| s.to_string())
-            })
-            .collect()
-    })
-}

src-tauri/src/main.rs

@@ -75,6 +75,41 @@ fn list_project_files(state: State<'_, AppState>, project_id: &str) -> Result<Ve
     }
 }
 
+#[tauri::command]
+fn list_sessions(
+    state: State<'_, AppState>,
+    project_id: &str,
+) -> Result<Vec<sessions::Session>, Error> {
+    match state
+        .projects_storage
+        .get_project(project_id)
+        .map_err(|e| {
+            log::error!("{}", e);
+            Error {
+                message: "Failed to get project".to_string(),
+            }
+        })? {
+        Some(project) => {
+            let repo = Repository::open(project.path).map_err(|e| {
+                log::error!("{}", e);
+                Error {
+                    message: "Failed to open project".to_string(),
+                }
+            })?;
+            let sessions = sessions::list_sessions(&repo).map_err(|e| {
+                log::error!("{}", e);
+                Error {
+                    message: "Failed to list sessions".to_string(),
+                }
+            })?;
+            Ok(sessions)
+        }
+        None => Err(Error {
+            message: "Project not found".to_string(),
+        }),
+    }
+}
+
 #[tauri::command]
 fn read_project_file(
     state: State<'_, AppState>,
@@ -281,7 +316,8 @@ fn main() {
                     add_project,
                     list_projects,
                     delete_project,
-                    list_deltas
+                    list_deltas,
+                    list_sessions,
                 ])
                 .run(tauri::generate_context!())
                 .expect("error while running tauri application")

src-tauri/src/sessions.rs

@@ -1,5 +1,9 @@
 use std::path::Path;
 
+use serde::Serialize;
+
+#[derive(Serialize)]
+#[serde(rename_all = "camelCase")]
 pub struct Meta {
     // timestamp of when the session was created
     pub start_ts: u64,
@@ -11,10 +15,47 @@ pub struct Meta {
     pub commit: String,
 }
 
+#[derive(Serialize)]
+#[serde(rename_all = "camelCase")]
 pub struct Session {
     pub meta: Meta,
 }
 
+impl Session {
+    pub fn from_commit(repo: &git2::Repository, commit: &git2::Commit) -> Result<Self, Error> {
+        let tree = commit.tree().map_err(|err| Error {
+            cause: err.into(),
+            message: "Error while getting commit tree".to_string(),
+        })?;
+
+        let start = read_as_string(repo, &tree, Path::new("session/meta/start"))?
+            .parse::<u64>()
+            .map_err(|err| Error {
+                cause: ErrorCause::ParseIntError(err),
+                message: "Error while parsing start file".to_string(),
+            })?;
+
+        let last = read_as_string(repo, &tree, Path::new("session/meta/last"))?
+            .parse::<u64>()
+            .map_err(|err| Error {
+                cause: ErrorCause::ParseIntError(err),
+                message: "Error while parsing last file".to_string(),
+            })?;
+
+        let branch = read_as_string(repo, &tree, Path::new("session/meta/branch"))?;
+        let commit = read_as_string(repo, &tree, Path::new("session/meta/commit"))?;
+
+        Ok(Session {
+            meta: Meta {
+                start_ts: start,
+                last_ts: last,
+                branch,
+                commit,
+            },
+        })
+    }
+}
+
 #[derive(Debug)]
 pub struct Error {
     pub cause: ErrorCause,
@@ -28,6 +69,8 @@ impl std::error::Error for Error {
             ErrorCause::ParseIntError(err) => Some(err),
             ErrorCause::SessionExistsError => Some(self),
             ErrorCause::SessionDoesNotExistError => Some(self),
+            ErrorCause::GitError(err) => Some(err),
+            ErrorCause::ParseUtf8Error(err) => Some(err),
         }
     }
 }
@@ -39,6 +82,8 @@ impl std::fmt::Display for Error {
             ErrorCause::ParseIntError(ref e) => write!(f, "{}: {}", self.message, e),
             ErrorCause::SessionExistsError => write!(f, "{}", self.message),
             ErrorCause::SessionDoesNotExistError => write!(f, "{}", self.message),
+            ErrorCause::GitError(ref e) => write!(f, "{}: {}", self.message, e),
+            ErrorCause::ParseUtf8Error(ref e) => write!(f, "{}: {}", self.message, e),
         }
     }
 }
@@ -47,8 +92,22 @@ impl std::fmt::Display for Error {
 pub enum ErrorCause {
     IOError(std::io::Error),
     ParseIntError(std::num::ParseIntError),
+    GitError(git2::Error),
     SessionExistsError,
     SessionDoesNotExistError,
+    ParseUtf8Error(std::string::FromUtf8Error),
+}
+
+impl From<std::string::FromUtf8Error> for ErrorCause {
+    fn from(err: std::string::FromUtf8Error) -> Self {
+        ErrorCause::ParseUtf8Error(err)
+    }
+}
+
+impl From<git2::Error> for ErrorCause {
+    fn from(err: git2::Error) -> Self {
+        ErrorCause::GitError(err)
+    }
 }
 
 impl From<std::io::Error> for ErrorCause {
@@ -98,8 +157,9 @@ fn write_current_session(session_path: &Path, session: &Session) -> Result<(), E
     Ok(())
 }
 
-pub fn update_current_session(project_path: &Path, session: &Session) -> Result<(), Error> {
-    let session_path = project_path.join(".git/gb/session");
+pub fn update_current_session(repo: &git2::Repository, session: &Session) -> Result<(), Error> {
+    log::debug!("{}: Updating current session", repo.path().display());
+    let session_path = repo.path().join("gb/session");
     if session_path.exists() {
         write_current_session(&session_path, session)
     } else {
@@ -110,9 +170,9 @@ pub fn update_current_session(project_path: &Path, session: &Session) -> Result<
     }
 }
 
-pub fn create_current_session(project_path: &Path, session: &Session) -> Result<(), Error> {
-    log::debug!("{}: Creating current session", project_path.display());
-    let session_path = project_path.join(".git/gb/session");
+pub fn create_current_session(repo: &git2::Repository, session: &Session) -> Result<(), Error> {
+    log::debug!("{}: Creating current session", repo.path().display());
+    let session_path = repo.path().join("gb/session");
     if session_path.exists() {
         Err(Error {
             cause: ErrorCause::SessionExistsError,
@@ -123,17 +183,17 @@ pub fn create_current_session(project_path: &Path, session: &Session) -> Result<
     }
 }
 
-pub fn delete_current_session(project_path: &Path) -> Result<(), std::io::Error> {
-    log::debug!("{}: Deleting current session", project_path.display());
-    let session_path = project_path.join(".git/gb/session");
+pub fn delete_current_session(repo: &git2::Repository) -> Result<(), std::io::Error> {
+    log::debug!("{}: Deleting current session", repo.path().display());
+    let session_path = repo.path().join("gb/session");
     if session_path.exists() {
         std::fs::remove_dir_all(session_path)?;
     }
     Ok(())
 }
 
-pub fn get_current_session(project_path: &Path) -> Result<Option<Session>, Error> {
-    let session_path = project_path.join(".git/gb/session");
+pub fn get_current_session(repo: &git2::Repository) -> Result<Option<Session>, Error> {
+    let session_path = repo.path().join("gb/session");
     if !session_path.exists() {
         return Ok(None);
     }
@@ -185,3 +245,72 @@ pub fn get_current_session(project_path: &Path) -> Result<Option<Session>, Error
         },
     }))
 }
+
+pub fn list_sessions(repo: &git2::Repository) -> Result<Vec<Session>, Error> {
+    match repo.revparse_single("refs/gitbutler/current") {
+        Err(_) => Ok(vec![]),
+        Ok(object) => {
+            let gitbutler_head = repo.find_commit(object.id()).map_err(|err| Error {
+                cause: err.into(),
+                message: "Failed to find gitbutler head".to_string(),
+            })?;
+            // list all commits from gitbutler head to the first commit
+            let mut walker = repo.revwalk().map_err(|err| Error {
+                cause: err.into(),
+                message: "Failed to create revwalk".to_string(),
+            })?;
+            walker.push(gitbutler_head.id()).map_err(|err| Error {
+                cause: err.into(),
+                message: "Failed to push gitbutler head".to_string(),
+            })?;
+            walker.set_sorting(git2::Sort::TIME).map_err(|err| Error {
+                cause: err.into(),
+                message: "Failed to set sorting".to_string(),
+            })?;
+
+            let mut sessions: Vec<Session> = vec![];
+            for id in walker {
+                let id = id.map_err(|err| Error {
+                    cause: err.into(),
+                    message: "Failed to get commit id".to_string(),
+                })?;
+                let commit = repo.find_commit(id).map_err(|err| Error {
+                    cause: err.into(),
+                    message: "Failed to find commit".to_string(),
+                })?;
+                sessions.push(Session::from_commit(repo, &commit)?);
+            }
+            Ok(sessions)
+        }
+    }
+}
+
+fn read_as_string(
+    repo: &git2::Repository,
+    tree: &git2::Tree,
+    path: &Path,
+) -> Result<String, Error> {
+    match tree.get_path(path) {
+        Ok(tree_entry) => {
+            let blob = tree_entry
+                .to_object(repo)
+                .map_err(|err| Error {
+                    cause: err.into(),
+                    message: "Error while getting tree entry object".to_string(),
+                })?
+                .into_blob()
+                .unwrap();
+            let contents = String::from_utf8(blob.content().to_vec()).map_err(|err| Error {
+                cause: err.into(),
+                message: "Error while parsing blob as utf8".to_string(),
+            })?;
+            Ok(contents)
+        }
+        Err(err) => {
+            return Err(Error {
+                cause: err.into(),
+                message: "Error while getting tree entry".to_string(),
+            })
+        }
+    }
+}

src-tauri/src/watchers/delta.rs

@@ -232,17 +232,16 @@ pub fn get_latest_file_contents(
 // this function is called when the user modifies a file, it writes starting metadata if not there
 // and also touches the last activity timestamp, so we can tell when we are idle
 fn write_beginning_meta_files(repo: &Repository) -> Result<(), Box<dyn std::error::Error>> {
-    let project_path = repo.workdir().unwrap();
     let now_ts = SystemTime::now()
         .duration_since(SystemTime::UNIX_EPOCH)
         .unwrap()
         .as_secs();
-    match sessions::get_current_session(project_path)
+    match sessions::get_current_session(repo)
         .map_err(|e| format!("Error while getting current session: {}", e.to_string()))?
     {
         Some(mut session) => {
             session.meta.last_ts = now_ts;
-            sessions::update_current_session(project_path, &session)
+            sessions::update_current_session(repo, &session)
                 .map_err(|e| format!("Error while updating current session: {}", e.to_string()))?;
             Ok(())
         }
@@ -256,7 +255,7 @@ fn write_beginning_meta_files(repo: &Repository) -> Result<(), Box<dyn std::erro
                     commit: head.peel_to_commit()?.id().to_string(),
                 },
             };
-            sessions::create_current_session(project_path, &session)
+            sessions::create_current_session(repo, &session)
                 .map_err(|e| format!("Error while creating current session: {}", e.to_string()))?;
             Ok(())
         }

src-tauri/src/watchers/git.rs

@@ -77,7 +77,7 @@ fn check_for_changes(repo: &Repository) -> Result<(), Box<dyn std::error::Error>
             commit_oid
         );
 
-        sessions::delete_current_session(repo.workdir().unwrap())?;
+        sessions::delete_current_session(repo)?;
     }
 
     Ok(())
@@ -89,7 +89,7 @@ fn check_for_changes(repo: &Repository) -> Result<(), Box<dyn std::error::Error>
 // and that there has been no activity in the last 5 minutes (the session appears to be over)
 // and the start was at most an hour ago
 fn ready_to_commit(repo: &Repository) -> Result<bool, Box<dyn std::error::Error>> {
-    if let Some(current_session) = sessions::get_current_session(repo.workdir().unwrap())? {
+    if let Some(current_session) = sessions::get_current_session(repo)? {
         let now = SystemTime::now()
             .duration_since(SystemTime::UNIX_EPOCH)
             .unwrap()
@@ -98,6 +98,7 @@ fn ready_to_commit(repo: &Repository) -> Result<bool, Box<dyn std::error::Error>
         let elapsed_last = now - current_session.meta.last_ts;
         let elapsed_start = now - current_session.meta.start_ts;
 
+        // TODO: uncomment
         if (elapsed_last > FIVE_MINUTES) || (elapsed_start > ONE_HOUR) {
             Ok(true)
         } else {
@@ -178,7 +179,7 @@ fn add_path(
 
     // something is different, or not found, so we need to create a new entry
 
-    log::debug!("Adding path: {}", file_path.display());
+    log::debug!("Adding wd path: {}", file_path.display());
 
     // look for files that are bigger than 4GB, which are not supported by git
     // insert a pointer as the blob content instead
@@ -216,28 +217,21 @@ fn add_path(
     };
 
     // create a new IndexEntry from the file metadata
-    let new_entry = git2::IndexEntry {
-        ctime: IndexTime::new(
-            ctime.seconds().try_into().unwrap(),
-            ctime.nanoseconds().try_into().unwrap(),
-        ),
-        mtime: IndexTime::new(
-            mtime.seconds().try_into().unwrap(),
-            mtime.nanoseconds().try_into().unwrap(),
-        ),
-        dev: metadata.dev().try_into().unwrap(),
-        ino: metadata.ino().try_into().unwrap(),
+    index.add(&git2::IndexEntry {
+        ctime: IndexTime::new(ctime.seconds().try_into()?, ctime.nanoseconds().try_into()?),
+        mtime: IndexTime::new(mtime.seconds().try_into()?, mtime.nanoseconds().try_into()?),
+        dev: metadata.dev().try_into()?,
+        ino: metadata.ino().try_into()?,
         mode: metadata.mode(),
-        uid: metadata.uid().try_into().unwrap(),
-        gid: metadata.gid().try_into().unwrap(),
-        file_size: metadata.len().try_into().unwrap(),
+        uid: metadata.uid().try_into()?,
+        gid: metadata.gid().try_into()?,
+        file_size: metadata.len().try_into()?,
         flags: 10, // normal flags for normal file (for the curious: https://git-scm.com/docs/index-format)
         flags_extended: 0, // no extended flags
         path: rel_file_path.to_str().unwrap().to_string().into(),
         id: blob,
-    };
+    })?;
 
-    index.add(&new_entry)?;
     Ok(())
 }
 
@@ -283,18 +277,16 @@ fn build_gb_tree(
 
     // add all files in the working directory to the in-memory index, skipping for matching entries in the repo index
     let session_dir = repo.path().join("gb/session");
-    for path in fs::list_files(&session_dir)? {
-        let file_path = Path::new(&path);
-        add_simple_path(&repo, session_index, &file_path)?;
+    for session_file in fs::list_files(&session_dir)? {
+        let file_path = Path::new(&session_file);
+        add_session_path(&repo, session_index, &file_path)?;
     }
 
     // write the in-memory index to the repo
-    let session_tree = session_index.write_tree_to(&repo).unwrap();
+    let session_tree = session_index.write_tree_to(&repo)?;
 
     // insert the session tree oid as a subdirectory under the name 'session'
-    tree_builder
-        .insert("session", session_tree, 0o040000)
-        .unwrap();
+    tree_builder.insert("session", session_tree, 0o040000)?;
 
     // write the new tree and return the Oid
     let tree = tree_builder.write().unwrap();
@@ -302,56 +294,35 @@ fn build_gb_tree(
 }
 
 // this is a helper function for build_gb_tree that takes paths under .git/gb/session and adds them to the in-memory index
-fn add_simple_path(
+fn add_session_path(
     repo: &Repository,
     index: &mut git2::Index,
     rel_file_path: &Path,
-) -> Result<(), git2::Error> {
-    let abs_file_path = repo.workdir().unwrap().join(rel_file_path);
-    let file_path = Path::new(&abs_file_path);
+) -> Result<(), Box<dyn std::error::Error>> {
+    let file_path = repo.path().join("gb/session").join(rel_file_path);
 
-    log::debug!("Adding path: {}", file_path.display());
+    log::debug!("Adding session path: {}", file_path.display());
 
-    let blob = repo.blob_path(file_path).unwrap();
+    let blob = repo.blob_path(&file_path)?;
     let metadata = file_path.metadata().unwrap();
     let mtime = FileTime::from_last_modification_time(&metadata);
     let ctime = FileTime::from_creation_time(&metadata).unwrap();
 
     // create a new IndexEntry from the file metadata
-    let new_entry = git2::IndexEntry {
-        ctime: IndexTime::new(
-            ctime
-                .seconds()
-                .try_into()
-                .map_err(|_| git2::Error::from_str("ctime seconds out of range"))?,
-            ctime
-                .nanoseconds()
-                .try_into()
-                .map_err(|_| git2::Error::from_str("ctime nanoseconds out of range"))?,
-        ),
-        mtime: IndexTime::new(
-            mtime
-                .seconds()
-                .try_into()
-                .map_err(|_| git2::Error::from_str("mtime seconds out of range"))?,
-            mtime
-                .nanoseconds()
-                .try_into()
-                .map_err(|_| git2::Error::from_str("mtime nanoseconds out of range"))?,
-        ),
-        dev: metadata.dev().try_into().unwrap(),
-        ino: metadata.ino().try_into().unwrap(),
+    index.add(&git2::IndexEntry {
+        ctime: IndexTime::new(ctime.seconds().try_into()?, ctime.nanoseconds().try_into()?),
+        mtime: IndexTime::new(mtime.seconds().try_into()?, mtime.nanoseconds().try_into()?),
+        dev: metadata.dev().try_into()?,
+        ino: metadata.ino().try_into()?,
         mode: metadata.mode(),
-        uid: metadata.uid().try_into().unwrap(),
-        gid: metadata.gid().try_into().unwrap(),
-        file_size: metadata.len().try_into().unwrap(),
+        uid: metadata.uid().try_into()?,
+        gid: metadata.gid().try_into()?,
+        file_size: metadata.len().try_into()?,
         flags: 10, // normal flags for normal file (for the curious: https://git-scm.com/docs/index-format)
         flags_extended: 0, // no extended flags
         path: rel_file_path.to_str().unwrap().into(),
         id: blob,
-    };
-
-    index.add(&new_entry)?;
+    })?;
 
     Ok(())
 }

src/lib/index.ts

@@ -2,4 +2,4 @@ export * as crdt from "./crdt";
 export * as database from "./database";
 export * as projects from "./projects";
 export * as log from "./log";
-export * as session from "./session";
+export * as session from "./sessions";

src/lib/sessions.ts

@@ -1,3 +1,5 @@
+import { invoke } from "@tauri-apps/api";
+import { writable } from "svelte/store";
 import type { Delta } from "./crdt";
 
 export type SessionFile = {
@@ -95,3 +97,14 @@ export let dummySessions: Session[] = [
         ],
     },
 ];
+
+const list = (params: { projectId: string }) =>
+    invoke<Record<string, Delta[]>>("list_sessions", params);
+
+export default async (params: { projectId: string }) => {
+    const init = await list(params);
+    const store = writable(init);
+    return {
+        subscribe: store.subscribe,
+    };
+};

src/routes/projects/[id]/+layout.ts

@@ -4,7 +4,7 @@ import { derived, readable } from "svelte/store";
 import type { LayoutLoad } from "./$types";
 // import crdt from "$lib/crdt";
 import { building } from "$app/environment";
-import type { Session } from "$lib/session";
+import type { Session } from "$lib/sessions";
 
 export const prerender = false;
 
@@ -12,33 +12,35 @@ export const load: LayoutLoad = async ({ parent, params }) => {
     const { projects } = await parent();
     const deltas = building
         ? readable<Record<string, Delta[]>>({})
-        : await (await import("$lib/crdt")).default({ projectId: params.id })
+        : await (await import("$lib/crdt")).default({ projectId: params.id });
+    const sessions = building
+        ? readable<Session[]>([])
+        : await (await import("$lib/sessions")).default({ projectId: params.id });
 
     return {
+        testSessions: sessions,
         project: derived(projects, (projects) =>
             projects.find((project) => project.id === params.id)
         ),
         deltas,
         sessions: derived(deltas, (deltas) => {
-            const files = Object.entries(deltas).map(([key, value]) => (
-                {
+            const files = Object.entries(deltas).map(([key, value]) => ({
                 name: key,
                 path: key, // TODO
                 linesTouched: 0, // TODO
                 numberOfEdits: 0, // TODO
                 deltas: value,
-                }
-            ))
+            }));
             const infiniteSession: Session = {
                 hash: "1-a1b2c3d4e5f6g7h8i9j0", // TODO: set this when we have a snapshot
                 startTime: 0, // TODO: set this when we have a snapshot
                 endTime: 0, // TODO: set this when we have a snapshot
                 branchName: "infinite-session-x", // TODO: set this when we have a snapshot
                 files: files,
-                activities: [] // TODO: set this when we have activities (e.g. push, commit, etc.)
-            }
+                activities: [], // TODO: set this when we have activities (e.g. push, commit, etc.)
+            };
             // TODO: until we have multiple snapshots, putting all crdt changes into one session
-            return [infiniteSession]
+            return [infiniteSession];
         }),
     };
 };

src/routes/projects/[id]/+page.svelte

@@ -3,14 +3,13 @@
     import { TimelineDay } from "$lib/components/timeline";
 
     export let data: PageData;
-    const { project, sessions } = data;
+    const { project, sessions, testSessions } = data;
+
+    $: console.log($testSessions);
 </script>
 
 <div>
     {#if $project}
-        <TimelineDay
-            projectId={$project?.id}
-            sessions={$sessions}
-        />
+        <TimelineDay projectId={$project?.id} sessions={$sessions} />
     {/if}
 </div>