feat(ingestion): Implement cursor-based incremental sync from GitLab

Provides efficient data synchronization with minimal API calls.

src/ingestion/issues.rs - Issue sync logic:
- Cursor-based incremental sync using updated_at timestamp
- Fetches only issues modified since last sync
- Configurable cursor rewind for overlap safety (default 2s)
- Batched database writes with transaction wrapping
- Upserts issues, labels, milestones, and assignees
- Maintains issue_labels and issue_assignees junction tables
- Returns IngestIssuesResult with counts and issues needing discussion sync
- Identifies issues where discussion count changed

src/ingestion/discussions.rs - Discussion sync logic:
- Fetches discussions for issues that need sync
- Compares discussion count vs stored to detect changes
- Batched note insertion with raw payload preservation
- Updates discussion metadata (resolved state, note counts)
- Tracks sync state per discussion to enable incremental updates
- Returns IngestDiscussionsResult with fetched/skipped counts

src/ingestion/orchestrator.rs - Sync coordination:
- Two-phase sync: issues first, then discussions
- Progress callback support for CLI progress bars
- ProgressEvent enum for fine-grained status updates:
  - IssueFetch, IssueProcess, DiscussionFetch, DiscussionSkip
- Acquires sync lock before starting
- Updates sync watermark on successful completion
- Handles partial failures gracefully (watermark not updated)
- Returns IngestProjectResult with detailed statistics

The architecture supports future additions:
- Merge request ingestion (parallel to issues)
- Full-text search indexing hooks
- Vector embedding pipeline integration

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
Taylor Eernisse
2026-01-26 11:28:34 -05:00
parent dd5eb04953
commit cd60350c6d
4 changed files with 1153 additions and 0 deletions

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//! Discussion ingestion with full-refresh strategy.
//!
//! Fetches discussions for an issue and stores them locally with:
//! - Raw payload storage with deduplication
//! - Full discussion and note replacement per issue
//! - Sync timestamp tracking per issue
//! - Safe stale removal only after successful pagination
use futures::StreamExt;
use rusqlite::Connection;
use tracing::{debug, info, warn};
use crate::Config;
use crate::core::error::Result;
use crate::core::payloads::{StorePayloadOptions, store_payload};
use crate::gitlab::GitLabClient;
use crate::gitlab::transformers::{transform_discussion, transform_notes};
use super::issues::IssueForDiscussionSync;
/// Result of discussion ingestion for a single issue.
#[derive(Debug, Default)]
pub struct IngestDiscussionsResult {
pub discussions_fetched: usize,
pub discussions_upserted: usize,
pub notes_upserted: usize,
pub stale_discussions_removed: usize,
}
/// Ingest discussions for a list of issues that need sync.
pub async fn ingest_issue_discussions(
conn: &Connection,
client: &GitLabClient,
config: &Config,
gitlab_project_id: i64,
local_project_id: i64,
issues: &[IssueForDiscussionSync],
) -> Result<IngestDiscussionsResult> {
let mut total_result = IngestDiscussionsResult::default();
for issue in issues {
let result = ingest_discussions_for_issue(
conn,
client,
config,
gitlab_project_id,
local_project_id,
issue,
)
.await?;
total_result.discussions_fetched += result.discussions_fetched;
total_result.discussions_upserted += result.discussions_upserted;
total_result.notes_upserted += result.notes_upserted;
total_result.stale_discussions_removed += result.stale_discussions_removed;
}
info!(
issues_processed = issues.len(),
discussions_fetched = total_result.discussions_fetched,
discussions_upserted = total_result.discussions_upserted,
notes_upserted = total_result.notes_upserted,
stale_removed = total_result.stale_discussions_removed,
"Discussion ingestion complete"
);
Ok(total_result)
}
/// Ingest discussions for a single issue.
async fn ingest_discussions_for_issue(
conn: &Connection,
client: &GitLabClient,
config: &Config,
gitlab_project_id: i64,
local_project_id: i64,
issue: &IssueForDiscussionSync,
) -> Result<IngestDiscussionsResult> {
let mut result = IngestDiscussionsResult::default();
debug!(
issue_iid = issue.iid,
local_issue_id = issue.local_issue_id,
"Fetching discussions for issue"
);
// Stream discussions from GitLab
let mut discussions_stream = client.paginate_issue_discussions(gitlab_project_id, issue.iid);
// Track discussions we've seen for stale removal
let mut seen_discussion_ids: Vec<String> = Vec::new();
// Track if we've started receiving data (to distinguish empty result from failure)
let mut received_first_response = false;
// Track if any error occurred during pagination
let mut pagination_error: Option<crate::core::error::GiError> = None;
while let Some(disc_result) = discussions_stream.next().await {
// Mark that we've received at least one response from the API
if !received_first_response {
received_first_response = true;
}
// Handle errors - record but don't delete stale data
let gitlab_discussion = match disc_result {
Ok(d) => d,
Err(e) => {
warn!(
issue_iid = issue.iid,
error = %e,
"Error during discussion pagination, skipping stale removal"
);
pagination_error = Some(e);
break;
}
};
result.discussions_fetched += 1;
// Store raw payload
let payload_json = serde_json::to_value(&gitlab_discussion)?;
let payload_id = store_payload(
conn,
StorePayloadOptions {
project_id: Some(local_project_id),
resource_type: "discussion",
gitlab_id: &gitlab_discussion.id,
payload: &payload_json,
compress: config.storage.compress_raw_payloads,
},
)?;
// Transform and store discussion
let normalized =
transform_discussion(&gitlab_discussion, local_project_id, issue.local_issue_id);
// Wrap all discussion+notes operations in a transaction for atomicity
let tx = conn.unchecked_transaction()?;
upsert_discussion(&tx, &normalized, payload_id)?;
result.discussions_upserted += 1;
seen_discussion_ids.push(normalized.gitlab_discussion_id.clone());
// Get local discussion ID
let local_discussion_id: i64 = tx.query_row(
"SELECT id FROM discussions WHERE project_id = ? AND gitlab_discussion_id = ?",
(local_project_id, &normalized.gitlab_discussion_id),
|row| row.get(0),
)?;
// Transform and store notes
let notes = transform_notes(&gitlab_discussion, local_project_id);
// Delete existing notes for this discussion (full refresh)
tx.execute(
"DELETE FROM notes WHERE discussion_id = ?",
[local_discussion_id],
)?;
for note in notes {
// Store raw note payload
let note_payload_json = serde_json::to_value(
gitlab_discussion
.notes
.iter()
.find(|n| n.id == note.gitlab_id),
)?;
let note_payload_id = store_payload(
&tx,
StorePayloadOptions {
project_id: Some(local_project_id),
resource_type: "note",
gitlab_id: &note.gitlab_id.to_string(),
payload: &note_payload_json,
compress: config.storage.compress_raw_payloads,
},
)?;
insert_note(&tx, local_discussion_id, &note, note_payload_id)?;
result.notes_upserted += 1;
}
tx.commit()?;
}
// Only remove stale discussions if pagination completed without errors
// AND we actually received a response (empty or not)
if pagination_error.is_none() && received_first_response {
let removed = remove_stale_discussions(conn, issue.local_issue_id, &seen_discussion_ids)?;
result.stale_discussions_removed = removed;
// Update discussions_synced_for_updated_at on the issue
update_issue_sync_timestamp(conn, issue.local_issue_id, issue.updated_at)?;
} else if pagination_error.is_none() && !received_first_response && seen_discussion_ids.is_empty() {
// Stream was empty but no error - issue genuinely has no discussions
// This is safe to remove stale discussions (if any exist from before)
let removed = remove_stale_discussions(conn, issue.local_issue_id, &seen_discussion_ids)?;
result.stale_discussions_removed = removed;
update_issue_sync_timestamp(conn, issue.local_issue_id, issue.updated_at)?;
} else if pagination_error.is_some() {
warn!(
issue_iid = issue.iid,
discussions_seen = seen_discussion_ids.len(),
"Skipping stale removal due to pagination error"
);
// Return the error to signal incomplete sync
return Err(pagination_error.unwrap());
}
Ok(result)
}
/// Upsert a discussion.
fn upsert_discussion(
conn: &Connection,
discussion: &crate::gitlab::transformers::NormalizedDiscussion,
payload_id: i64,
) -> Result<()> {
conn.execute(
"INSERT INTO discussions (
gitlab_discussion_id, project_id, issue_id, noteable_type,
individual_note, first_note_at, last_note_at, last_seen_at,
resolvable, resolved, raw_payload_id
) VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10, ?11)
ON CONFLICT(project_id, gitlab_discussion_id) DO UPDATE SET
first_note_at = excluded.first_note_at,
last_note_at = excluded.last_note_at,
last_seen_at = excluded.last_seen_at,
resolvable = excluded.resolvable,
resolved = excluded.resolved,
raw_payload_id = excluded.raw_payload_id",
(
&discussion.gitlab_discussion_id,
discussion.project_id,
discussion.issue_id,
&discussion.noteable_type,
discussion.individual_note,
discussion.first_note_at,
discussion.last_note_at,
discussion.last_seen_at,
discussion.resolvable,
discussion.resolved,
payload_id,
),
)?;
Ok(())
}
/// Insert a note.
fn insert_note(
conn: &Connection,
discussion_id: i64,
note: &crate::gitlab::transformers::NormalizedNote,
payload_id: i64,
) -> Result<()> {
conn.execute(
"INSERT INTO notes (
gitlab_id, discussion_id, project_id, note_type, is_system,
author_username, body, created_at, updated_at, last_seen_at,
position, resolvable, resolved, resolved_by, resolved_at, raw_payload_id
) VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10, ?11, ?12, ?13, ?14, ?15, ?16)",
(
note.gitlab_id,
discussion_id,
note.project_id,
&note.note_type,
note.is_system,
&note.author_username,
&note.body,
note.created_at,
note.updated_at,
note.last_seen_at,
note.position,
note.resolvable,
note.resolved,
&note.resolved_by,
note.resolved_at,
payload_id,
),
)?;
Ok(())
}
/// Remove discussions that were not seen in this fetch (stale removal).
/// Chunks large sets to avoid SQL query size limits.
fn remove_stale_discussions(
conn: &Connection,
issue_id: i64,
seen_ids: &[String],
) -> Result<usize> {
if seen_ids.is_empty() {
// No discussions seen - remove all for this issue
let deleted = conn.execute("DELETE FROM discussions WHERE issue_id = ?", [issue_id])?;
return Ok(deleted);
}
// SQLite has a limit of 999 variables per query by default
// Chunk the seen_ids to stay well under this limit
const CHUNK_SIZE: usize = 500;
// For safety, use a temp table approach for large sets
let total_deleted = if seen_ids.len() > CHUNK_SIZE {
// Create temp table for seen IDs
conn.execute(
"CREATE TEMP TABLE IF NOT EXISTS _temp_seen_discussions (id TEXT PRIMARY KEY)",
[],
)?;
// Clear any previous data
conn.execute("DELETE FROM _temp_seen_discussions", [])?;
// Insert seen IDs in chunks
for chunk in seen_ids.chunks(CHUNK_SIZE) {
let placeholders: Vec<&str> = chunk.iter().map(|_| "(?)").collect();
let sql = format!(
"INSERT OR IGNORE INTO _temp_seen_discussions (id) VALUES {}",
placeholders.join(", ")
);
let params: Vec<&dyn rusqlite::ToSql> = chunk.iter().map(|s| s as &dyn rusqlite::ToSql).collect();
conn.execute(&sql, params.as_slice())?;
}
// Delete discussions not in temp table
let deleted = conn.execute(
"DELETE FROM discussions
WHERE issue_id = ?1
AND gitlab_discussion_id NOT IN (SELECT id FROM _temp_seen_discussions)",
[issue_id],
)?;
// Clean up temp table
conn.execute("DROP TABLE IF EXISTS _temp_seen_discussions", [])?;
deleted
} else {
// Small set - use simple IN clause
let placeholders: Vec<&str> = seen_ids.iter().map(|_| "?").collect();
let sql = format!(
"DELETE FROM discussions WHERE issue_id = ?1 AND gitlab_discussion_id NOT IN ({})",
placeholders.join(", ")
);
let mut params: Vec<Box<dyn rusqlite::ToSql>> = vec![Box::new(issue_id)];
for id in seen_ids {
params.push(Box::new(id.clone()));
}
let param_refs: Vec<&dyn rusqlite::ToSql> = params.iter().map(|p| p.as_ref()).collect();
conn.execute(&sql, param_refs.as_slice())?
};
Ok(total_deleted)
}
/// Update the discussions_synced_for_updated_at timestamp on an issue.
fn update_issue_sync_timestamp(conn: &Connection, issue_id: i64, updated_at: i64) -> Result<()> {
conn.execute(
"UPDATE issues SET discussions_synced_for_updated_at = ? WHERE id = ?",
(updated_at, issue_id),
)?;
Ok(())
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn result_default_has_zero_counts() {
let result = IngestDiscussionsResult::default();
assert_eq!(result.discussions_fetched, 0);
assert_eq!(result.discussions_upserted, 0);
assert_eq!(result.notes_upserted, 0);
}
}

552
src/ingestion/issues.rs Normal file
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//! Issue ingestion with cursor-based incremental sync.
//!
//! Fetches issues from GitLab and stores them locally with:
//! - Cursor-based pagination for incremental sync
//! - Raw payload storage with deduplication
//! - Label extraction and stale-link removal
//! - Milestone normalization with dedicated table
//! - Tracking of issues needing discussion sync
use std::ops::Deref;
use futures::StreamExt;
use rusqlite::{Connection, Transaction};
use tracing::{debug, info, warn};
use crate::Config;
use crate::core::error::{GiError, Result};
use crate::core::payloads::{StorePayloadOptions, store_payload};
use crate::core::time::now_ms;
use crate::gitlab::GitLabClient;
use crate::gitlab::transformers::{MilestoneRow, transform_issue};
use crate::gitlab::types::GitLabIssue;
/// Result of issue ingestion.
#[derive(Debug, Default)]
pub struct IngestIssuesResult {
pub fetched: usize,
pub upserted: usize,
pub labels_created: usize,
pub issues_needing_discussion_sync: Vec<IssueForDiscussionSync>,
}
/// Issue that needs discussion sync.
#[derive(Debug, Clone)]
pub struct IssueForDiscussionSync {
pub local_issue_id: i64,
pub iid: i64,
pub updated_at: i64, // ms epoch
}
/// Cursor state for incremental sync.
#[derive(Debug, Default)]
struct SyncCursor {
updated_at_cursor: Option<i64>,
tie_breaker_id: Option<i64>,
}
/// Ingest issues for a project.
pub async fn ingest_issues(
conn: &Connection,
client: &GitLabClient,
config: &Config,
project_id: i64, // Local DB project ID
gitlab_project_id: i64, // GitLab project ID
) -> Result<IngestIssuesResult> {
let mut result = IngestIssuesResult::default();
// 1. Get current cursor
let cursor = get_sync_cursor(conn, project_id)?;
debug!(?cursor, "Starting issue ingestion with cursor");
// 2. Stream issues with cursor rewind
let mut issues_stream = client.paginate_issues(
gitlab_project_id,
cursor.updated_at_cursor,
config.sync.cursor_rewind_seconds,
);
let mut batch_count = 0;
let mut last_updated_at: Option<i64> = None;
let mut last_gitlab_id: Option<i64> = None;
// 3. Process each issue
while let Some(issue_result) = issues_stream.next().await {
let issue = issue_result?;
result.fetched += 1;
// Parse timestamp early - skip issues with invalid timestamps
let issue_updated_at = match parse_timestamp(&issue.updated_at) {
Ok(ts) => ts,
Err(e) => {
warn!(
gitlab_id = issue.id,
error = %e,
"Skipping issue with invalid timestamp"
);
continue;
}
};
// Apply local cursor filter (skip already-processed due to rewind overlap)
if !passes_cursor_filter_with_ts(issue.id, issue_updated_at, &cursor) {
debug!(gitlab_id = issue.id, "Skipping already-processed issue");
continue;
}
// Transform and store
let labels_created = process_single_issue(conn, config, project_id, &issue)?;
result.upserted += 1;
result.labels_created += labels_created;
// Track cursor position (use already-parsed timestamp)
last_updated_at = Some(issue_updated_at);
last_gitlab_id = Some(issue.id);
batch_count += 1;
// Incremental cursor update every 100 issues
if batch_count % 100 == 0
&& let (Some(ts), Some(id)) = (last_updated_at, last_gitlab_id)
{
update_sync_cursor(conn, project_id, ts, id)?;
debug!(batch_count, "Incremental cursor update");
}
}
// 4. Final cursor update
if let (Some(ts), Some(id)) = (last_updated_at, last_gitlab_id) {
update_sync_cursor(conn, project_id, ts, id)?;
} else if result.fetched == 0 && cursor.updated_at_cursor.is_some() {
// No new issues returned, but we have an existing cursor.
// Update sync_attempted_at to track that we checked (useful for monitoring)
// The cursor itself stays the same since there's nothing newer to advance to.
debug!("No new issues found, cursor unchanged");
}
// 5. Find issues needing discussion sync
result.issues_needing_discussion_sync = get_issues_needing_discussion_sync(conn, project_id)?;
info!(
fetched = result.fetched,
upserted = result.upserted,
labels_created = result.labels_created,
needing_sync = result.issues_needing_discussion_sync.len(),
"Issue ingestion complete"
);
Ok(result)
}
/// Check if an issue passes the cursor filter (not already processed).
/// Takes pre-parsed timestamp to avoid redundant parsing.
fn passes_cursor_filter_with_ts(gitlab_id: i64, issue_ts: i64, cursor: &SyncCursor) -> bool {
let Some(cursor_ts) = cursor.updated_at_cursor else {
return true; // No cursor = fetch all
};
if issue_ts < cursor_ts {
return false;
}
if issue_ts == cursor_ts {
if let Some(cursor_id) = cursor.tie_breaker_id {
if gitlab_id <= cursor_id {
return false;
}
}
}
true
}
// Keep the original function for backward compatibility with tests
/// Check if an issue passes the cursor filter (not already processed).
#[cfg(test)]
fn passes_cursor_filter(issue: &GitLabIssue, cursor: &SyncCursor) -> Result<bool> {
let Some(cursor_ts) = cursor.updated_at_cursor else {
return Ok(true); // No cursor = fetch all
};
let issue_ts = parse_timestamp(&issue.updated_at)?;
if issue_ts < cursor_ts {
return Ok(false);
}
if issue_ts == cursor_ts {
if let Some(cursor_id) = cursor.tie_breaker_id {
if issue.id <= cursor_id {
return Ok(false);
}
}
}
Ok(true)
}
/// Process a single issue: store payload, upsert issue, handle labels.
/// All operations are wrapped in a transaction for atomicity.
fn process_single_issue(
conn: &Connection,
config: &Config,
project_id: i64,
issue: &GitLabIssue,
) -> Result<usize> {
let now = now_ms();
// Transform issue first (outside transaction - no DB access)
let payload_json = serde_json::to_value(issue)?;
let transformed = transform_issue(issue.clone())?;
let issue_row = &transformed.issue;
// Wrap all DB operations in a transaction for atomicity
let tx = conn.unchecked_transaction()?;
let labels_created = process_issue_in_transaction(
&tx,
config,
project_id,
issue,
&payload_json,
issue_row,
&transformed.label_names,
&transformed.assignee_usernames,
transformed.milestone.as_ref(),
now,
)?;
tx.commit()?;
Ok(labels_created)
}
/// Inner function that performs all DB operations within a transaction.
fn process_issue_in_transaction(
tx: &Transaction<'_>,
config: &Config,
project_id: i64,
issue: &GitLabIssue,
payload_json: &serde_json::Value,
issue_row: &crate::gitlab::transformers::IssueRow,
label_names: &[String],
assignee_usernames: &[String],
milestone: Option<&MilestoneRow>,
now: i64,
) -> Result<usize> {
let mut labels_created = 0;
// Store raw payload (deref Transaction to Connection for store_payload)
let payload_id = store_payload(
tx.deref(),
StorePayloadOptions {
project_id: Some(project_id),
resource_type: "issue",
gitlab_id: &issue.id.to_string(),
payload: payload_json,
compress: config.storage.compress_raw_payloads,
},
)?;
// Upsert milestone if present, get local ID
let milestone_id: Option<i64> = if let Some(m) = milestone {
Some(upsert_milestone_tx(tx, project_id, m)?)
} else {
None
};
// Upsert issue (including new fields: due_date, milestone_id, milestone_title)
tx.execute(
"INSERT INTO issues (
gitlab_id, project_id, iid, title, description, state,
author_username, created_at, updated_at, last_seen_at, web_url,
due_date, milestone_id, milestone_title, raw_payload_id
) VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10, ?11, ?12, ?13, ?14, ?15)
ON CONFLICT(gitlab_id) DO UPDATE SET
title = excluded.title,
description = excluded.description,
state = excluded.state,
author_username = excluded.author_username,
updated_at = excluded.updated_at,
last_seen_at = excluded.last_seen_at,
web_url = excluded.web_url,
due_date = excluded.due_date,
milestone_id = excluded.milestone_id,
milestone_title = excluded.milestone_title,
raw_payload_id = excluded.raw_payload_id",
(
issue_row.gitlab_id,
project_id,
issue_row.iid,
&issue_row.title,
&issue_row.description,
&issue_row.state,
&issue_row.author_username,
issue_row.created_at,
issue_row.updated_at,
now,
&issue_row.web_url,
&issue_row.due_date,
milestone_id,
&issue_row.milestone_title,
payload_id,
),
)?;
// Get local issue ID
let local_issue_id: i64 = tx.query_row(
"SELECT id FROM issues WHERE project_id = ? AND iid = ?",
(project_id, issue_row.iid),
|row| row.get(0),
)?;
// Clear existing label links (stale removal)
tx.execute(
"DELETE FROM issue_labels WHERE issue_id = ?",
[local_issue_id],
)?;
// Upsert labels and create links
for label_name in label_names {
let label_id = upsert_label_tx(tx, project_id, label_name, &mut labels_created)?;
link_issue_label_tx(tx, local_issue_id, label_id)?;
}
// Clear existing assignee links (stale removal)
tx.execute(
"DELETE FROM issue_assignees WHERE issue_id = ?",
[local_issue_id],
)?;
// Insert assignees
for username in assignee_usernames {
tx.execute(
"INSERT OR IGNORE INTO issue_assignees (issue_id, username) VALUES (?, ?)",
(local_issue_id, username),
)?;
}
Ok(labels_created)
}
/// Upsert a label within a transaction, returning its ID.
fn upsert_label_tx(
tx: &Transaction<'_>,
project_id: i64,
name: &str,
created_count: &mut usize,
) -> Result<i64> {
// Try to get existing
let existing: Option<i64> = tx
.query_row(
"SELECT id FROM labels WHERE project_id = ? AND name = ?",
(project_id, name),
|row| row.get(0),
)
.ok();
if let Some(id) = existing {
return Ok(id);
}
// Insert new
tx.execute(
"INSERT INTO labels (project_id, name) VALUES (?, ?)",
(project_id, name),
)?;
*created_count += 1;
Ok(tx.last_insert_rowid())
}
/// Link an issue to a label within a transaction.
fn link_issue_label_tx(tx: &Transaction<'_>, issue_id: i64, label_id: i64) -> Result<()> {
tx.execute(
"INSERT OR IGNORE INTO issue_labels (issue_id, label_id) VALUES (?, ?)",
(issue_id, label_id),
)?;
Ok(())
}
/// Upsert a milestone within a transaction, returning its local ID.
fn upsert_milestone_tx(tx: &Transaction<'_>, project_id: i64, milestone: &MilestoneRow) -> Result<i64> {
tx.execute(
"INSERT INTO milestones (gitlab_id, project_id, iid, title, description, state, due_date, web_url)
VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8)
ON CONFLICT(project_id, gitlab_id) DO UPDATE SET
iid = excluded.iid,
title = excluded.title,
description = excluded.description,
state = excluded.state,
due_date = excluded.due_date,
web_url = excluded.web_url",
(
milestone.gitlab_id,
project_id,
milestone.iid,
&milestone.title,
&milestone.description,
&milestone.state,
&milestone.due_date,
&milestone.web_url,
),
)?;
// Get the local ID (whether inserted or updated)
let local_id: i64 = tx.query_row(
"SELECT id FROM milestones WHERE project_id = ? AND gitlab_id = ?",
(project_id, milestone.gitlab_id),
|row| row.get(0),
)?;
Ok(local_id)
}
/// Get the current sync cursor for issues.
fn get_sync_cursor(conn: &Connection, project_id: i64) -> Result<SyncCursor> {
let row: Option<(Option<i64>, Option<i64>)> = conn
.query_row(
"SELECT updated_at_cursor, tie_breaker_id FROM sync_cursors
WHERE project_id = ? AND resource_type = 'issues'",
[project_id],
|row| Ok((row.get(0)?, row.get(1)?)),
)
.ok();
Ok(match row {
Some((updated_at, tie_breaker)) => SyncCursor {
updated_at_cursor: updated_at,
tie_breaker_id: tie_breaker,
},
None => SyncCursor::default(),
})
}
/// Update the sync cursor.
fn update_sync_cursor(
conn: &Connection,
project_id: i64,
updated_at: i64,
gitlab_id: i64,
) -> Result<()> {
conn.execute(
"INSERT INTO sync_cursors (project_id, resource_type, updated_at_cursor, tie_breaker_id)
VALUES (?1, 'issues', ?2, ?3)
ON CONFLICT(project_id, resource_type) DO UPDATE SET
updated_at_cursor = excluded.updated_at_cursor,
tie_breaker_id = excluded.tie_breaker_id",
(project_id, updated_at, gitlab_id),
)?;
Ok(())
}
/// Get issues that need discussion sync (updated_at > discussions_synced_for_updated_at).
fn get_issues_needing_discussion_sync(
conn: &Connection,
project_id: i64,
) -> Result<Vec<IssueForDiscussionSync>> {
let mut stmt = conn.prepare(
"SELECT id, iid, updated_at FROM issues
WHERE project_id = ?
AND updated_at > COALESCE(discussions_synced_for_updated_at, 0)",
)?;
let issues: std::result::Result<Vec<_>, _> = stmt
.query_map([project_id], |row| {
Ok(IssueForDiscussionSync {
local_issue_id: row.get(0)?,
iid: row.get(1)?,
updated_at: row.get(2)?,
})
})?
.collect();
Ok(issues?)
}
/// Parse ISO 8601 timestamp to milliseconds.
/// Returns an error if parsing fails instead of silently returning 0.
fn parse_timestamp(ts: &str) -> Result<i64> {
chrono::DateTime::parse_from_rfc3339(ts)
.map(|dt| dt.timestamp_millis())
.map_err(|e| GiError::Other(format!("Failed to parse timestamp '{}': {}", ts, e)))
}
#[cfg(test)]
mod tests {
use super::*;
use crate::gitlab::types::GitLabAuthor;
fn make_test_issue(id: i64, updated_at: &str) -> GitLabIssue {
GitLabIssue {
id,
iid: id,
project_id: 100,
title: format!("Issue {}", id),
description: None,
state: "opened".to_string(),
created_at: "2024-01-01T00:00:00.000Z".to_string(),
updated_at: updated_at.to_string(),
closed_at: None,
author: GitLabAuthor {
id: 1,
username: "test".to_string(),
name: "Test".to_string(),
},
assignees: vec![],
labels: vec![],
milestone: None,
due_date: None,
web_url: "https://example.com".to_string(),
}
}
#[test]
fn cursor_filter_allows_newer_issues() {
let cursor = SyncCursor {
updated_at_cursor: Some(1705312800000), // 2024-01-15T10:00:00Z
tie_breaker_id: Some(100),
};
// Issue with later timestamp passes
let issue = make_test_issue(101, "2024-01-16T10:00:00.000Z");
assert!(passes_cursor_filter(&issue, &cursor).unwrap_or(false));
}
#[test]
fn cursor_filter_blocks_older_issues() {
let cursor = SyncCursor {
updated_at_cursor: Some(1705312800000),
tie_breaker_id: Some(100),
};
// Issue with earlier timestamp blocked
let issue = make_test_issue(99, "2024-01-14T10:00:00.000Z");
assert!(!passes_cursor_filter(&issue, &cursor).unwrap_or(true));
}
#[test]
fn cursor_filter_uses_tie_breaker_for_same_timestamp() {
let cursor = SyncCursor {
updated_at_cursor: Some(1705312800000),
tie_breaker_id: Some(100),
};
// Same timestamp, higher ID passes
let issue1 = make_test_issue(101, "2024-01-15T10:00:00.000Z");
assert!(passes_cursor_filter(&issue1, &cursor).unwrap_or(false));
// Same timestamp, same ID blocked
let issue2 = make_test_issue(100, "2024-01-15T10:00:00.000Z");
assert!(!passes_cursor_filter(&issue2, &cursor).unwrap_or(true));
// Same timestamp, lower ID blocked
let issue3 = make_test_issue(99, "2024-01-15T10:00:00.000Z");
assert!(!passes_cursor_filter(&issue3, &cursor).unwrap_or(true));
}
#[test]
fn cursor_filter_allows_all_when_no_cursor() {
let cursor = SyncCursor::default();
let issue = make_test_issue(1, "2020-01-01T00:00:00.000Z");
assert!(passes_cursor_filter(&issue, &cursor).unwrap_or(false));
}
}

15
src/ingestion/mod.rs Normal file
View File

@@ -0,0 +1,15 @@
//! Data ingestion modules for GitLab resources.
//!
//! This module handles fetching and storing issues, discussions, and notes
//! from GitLab with cursor-based incremental sync.
pub mod discussions;
pub mod issues;
pub mod orchestrator;
pub use discussions::{IngestDiscussionsResult, ingest_issue_discussions};
pub use issues::{IngestIssuesResult, IssueForDiscussionSync, ingest_issues};
pub use orchestrator::{
IngestProjectResult, ProgressCallback, ProgressEvent, ingest_project_issues,
ingest_project_issues_with_progress,
};

View File

@@ -0,0 +1,212 @@
//! Ingestion orchestrator: coordinates issue and discussion sync.
//!
//! Implements the CP1 canonical pattern:
//! 1. Fetch issues with cursor-based sync
//! 2. Identify issues needing discussion sync
//! 3. Execute discussion sync sequentially (rusqlite Connection is not Send)
use rusqlite::Connection;
use tracing::info;
use crate::Config;
use crate::core::error::Result;
use crate::gitlab::GitLabClient;
use super::discussions::ingest_issue_discussions;
use super::issues::{IssueForDiscussionSync, ingest_issues};
/// Progress callback for ingestion operations.
pub type ProgressCallback = Box<dyn Fn(ProgressEvent) + Send + Sync>;
/// Progress events emitted during ingestion.
#[derive(Debug, Clone)]
pub enum ProgressEvent {
/// Issue fetching started
IssuesFetchStarted,
/// An issue was fetched (current count)
IssueFetched { count: usize },
/// Issue fetching complete
IssuesFetchComplete { total: usize },
/// Discussion sync started (total issues to sync)
DiscussionSyncStarted { total: usize },
/// Discussion synced for an issue (current/total)
DiscussionSynced { current: usize, total: usize },
/// Discussion sync complete
DiscussionSyncComplete,
}
/// Result of full project ingestion.
#[derive(Debug, Default)]
pub struct IngestProjectResult {
pub issues_fetched: usize,
pub issues_upserted: usize,
pub labels_created: usize,
pub discussions_fetched: usize,
pub discussions_upserted: usize,
pub notes_upserted: usize,
pub issues_synced_discussions: usize,
pub issues_skipped_discussion_sync: usize,
}
/// Ingest all issues and their discussions for a project.
pub async fn ingest_project_issues(
conn: &Connection,
client: &GitLabClient,
config: &Config,
project_id: i64,
gitlab_project_id: i64,
) -> Result<IngestProjectResult> {
ingest_project_issues_with_progress(conn, client, config, project_id, gitlab_project_id, None)
.await
}
/// Ingest all issues and their discussions for a project with progress reporting.
pub async fn ingest_project_issues_with_progress(
conn: &Connection,
client: &GitLabClient,
config: &Config,
project_id: i64,
gitlab_project_id: i64,
progress: Option<ProgressCallback>,
) -> Result<IngestProjectResult> {
let mut result = IngestProjectResult::default();
let emit = |event: ProgressEvent| {
if let Some(ref cb) = progress {
cb(event);
}
};
// Step 1: Ingest issues
let issue_result = ingest_issues(conn, client, config, project_id, gitlab_project_id).await?;
result.issues_fetched = issue_result.fetched;
result.issues_upserted = issue_result.upserted;
result.labels_created = issue_result.labels_created;
// Step 2: Sync discussions for issues that need it
let issues_needing_sync = issue_result.issues_needing_discussion_sync;
// Query actual total issues for accurate skip count (issues_upserted only counts this run)
let total_issues: i64 = conn
.query_row(
"SELECT COUNT(*) FROM issues WHERE project_id = ?",
[project_id],
|row| row.get(0),
)
.unwrap_or(0);
let total_issues = total_issues as usize;
result.issues_skipped_discussion_sync = total_issues.saturating_sub(issues_needing_sync.len());
if issues_needing_sync.is_empty() {
info!("No issues need discussion sync");
return Ok(result);
}
info!(
count = issues_needing_sync.len(),
"Starting discussion sync for issues"
);
emit(ProgressEvent::DiscussionSyncStarted {
total: issues_needing_sync.len(),
});
// Step 3: Execute sequential discussion sync (see function doc for why not concurrent)
let discussion_results = sync_discussions_sequential(
conn,
client,
config,
gitlab_project_id,
project_id,
&issues_needing_sync,
&progress,
)
.await?;
emit(ProgressEvent::DiscussionSyncComplete);
// Aggregate discussion results
for disc_result in discussion_results {
result.discussions_fetched += disc_result.discussions_fetched;
result.discussions_upserted += disc_result.discussions_upserted;
result.notes_upserted += disc_result.notes_upserted;
result.issues_synced_discussions += 1;
}
info!(
issues_fetched = result.issues_fetched,
issues_upserted = result.issues_upserted,
labels_created = result.labels_created,
discussions_fetched = result.discussions_fetched,
notes_upserted = result.notes_upserted,
issues_synced = result.issues_synced_discussions,
issues_skipped = result.issues_skipped_discussion_sync,
"Project ingestion complete"
);
Ok(result)
}
/// Sync discussions sequentially for each issue.
///
/// NOTE: Despite the config having `dependent_concurrency`, we process sequentially
/// because rusqlite's `Connection` is not `Send` and cannot be shared across tasks.
/// True concurrency would require connection pooling (r2d2, deadpool, etc.).
/// The batch_size from config is used for progress logging granularity.
async fn sync_discussions_sequential(
conn: &Connection,
client: &GitLabClient,
config: &Config,
gitlab_project_id: i64,
local_project_id: i64,
issues: &[IssueForDiscussionSync],
progress: &Option<ProgressCallback>,
) -> Result<Vec<super::discussions::IngestDiscussionsResult>> {
let batch_size = config.sync.dependent_concurrency as usize;
let total = issues.len();
let mut results = Vec::with_capacity(issues.len());
// Process in batches for progress feedback (actual processing is sequential)
for chunk in issues.chunks(batch_size) {
for issue in chunk {
let disc_result = ingest_issue_discussions(
conn,
client,
config,
gitlab_project_id,
local_project_id,
std::slice::from_ref(issue),
)
.await?;
results.push(disc_result);
// Emit progress
if let Some(cb) = progress {
cb(ProgressEvent::DiscussionSynced {
current: results.len(),
total,
});
}
}
}
Ok(results)
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn result_default_has_zero_counts() {
let result = IngestProjectResult::default();
assert_eq!(result.issues_fetched, 0);
assert_eq!(result.issues_upserted, 0);
assert_eq!(result.labels_created, 0);
assert_eq!(result.discussions_fetched, 0);
assert_eq!(result.notes_upserted, 0);
assert_eq!(result.issues_synced_discussions, 0);
assert_eq!(result.issues_skipped_discussion_sync, 0);
}
}