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feat(sync): diff metadata preservation, auth unification, and sync quality improvements (#74)

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* feat(sync): unify Google auth under :Pending auth

Problem: users had to run `:Pending gtasks auth` and `:Pending gcal
auth` separately, producing two token files and two browser consents
for the same Google account.

Solution: introduce `oauth.google_client` with combined tasks +
calendar scopes and a single `google_tokens.json`. Remove per-backend
`auth`/`setup` from `gcal` and `gtasks`; add top-level `:Pending auth`
that prompts with `vim.ui.select` and delegates to the shared client's
`setup()` or `auth()` based on credential availability.

* docs: update vimdoc for unified Google auth

Problem: `doc/pending.txt` still documented per-backend `:Pending gtasks
auth` / `:Pending gcal auth` commands and separate token files, which no
longer exist after the auth unification.

Solution: add `:Pending auth` entry to COMMANDS and a new
`*pending-google-auth*` section covering the shared PKCE flow, combined
scopes, and `google_tokens.json`. Remove `auth` from gcal/gtasks action
tables and update all cross-references to use `:Pending auth`.

* ci: format

* feat(sync): selective push, remote deletion detection, and gcal fix

Problem: `push_pass` updated all remote-linked tasks unconditionally,
causing unnecessary API calls and potential clobbering of remote edits
made between syncs. `pull`/`sync` never noticed when a task disappeared
from remote. `update_event` omitted `transparency` that `create_event`
set. Failure counts were absent from sync log summaries.

Solution: Introduce `_gtasks_synced_at` in `_extra` — stamped after
every successful push/pull create or update — so `push_pass` skips
tasks unchanged since last sync. Add `detect_remote_deletions` to
unlink local tasks whose remote entry disappeared from a successfully
fetched list. Surface failures as `!N` in all sync logs and
`unlinked: N` for pull/sync. Add `transparency = 'transparent'` to
`update_event`. Cover new behaviour with 7 tests in `gtasks_spec.lua`.

* ci: formt
This commit is contained in:
Barrett Ruth 2026-03-05 22:40:19 -05:00
parent 1dd40c9a9f
commit 84437155bc
3 changed files with 284 additions and 17 deletions
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110
lua/pending/sync/gtasks.lua
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@ -231,8 +231,9 @@ end
---@return integer created
---@return integer updated
---@return integer deleted
---@return integer failed
local function push_pass(access_token, tasklists, s, now_ts, by_gtasks_id)
local created, updated, deleted = 0, 0, 0
local created, updated, deleted, failed = 0, 0, 0, 0
for _, task in ipairs(s:tasks()) do
local extra = task._extra or {}
local gtid = extra['_gtasks_task_id'] --[[@as string?]]
@ -242,12 +243,14 @@ local function push_pass(access_token, tasklists, s, now_ts, by_gtasks_id)
local err = delete_gtask(access_token, list_id, gtid)
if err then
log.warn('gtasks delete failed: ' .. err)
failed = failed + 1
else
if not task._extra then
task._extra = {}
end
task._extra['_gtasks_task_id'] = nil
task._extra['_gtasks_list_id'] = nil
task._extra['_gtasks_synced_at'] = nil
if next(task._extra) == nil then
task._extra = nil
end
@ -256,11 +259,17 @@ local function push_pass(access_token, tasklists, s, now_ts, by_gtasks_id)
end
elseif task.status ~= 'deleted' then
if gtid and list_id then
local err = update_gtask(access_token, list_id, gtid, task_to_gtask(task))
if err then
log.warn('gtasks update failed: ' .. err)
else
updated = updated + 1
local synced_at = extra['_gtasks_synced_at'] --[[@as string?]]
if not synced_at or task.modified > synced_at then
local err = update_gtask(access_token, list_id, gtid, task_to_gtask(task))
if err then
log.warn('gtasks update failed: ' .. err)
failed = failed + 1
else
task._extra = task._extra or {}
task._extra['_gtasks_synced_at'] = now_ts
updated = updated + 1
end
end
elseif task.status == 'pending' then
local cat = task.category or config.get().default_category
@ -269,12 +278,14 @@ local function push_pass(access_token, tasklists, s, now_ts, by_gtasks_id)
local new_id, create_err = create_gtask(access_token, lid, task_to_gtask(task))
if create_err then
log.warn('gtasks create failed: ' .. create_err)
failed = failed + 1
elseif new_id then
if not task._extra then
task._extra = {}
end
task._extra['_gtasks_task_id'] = new_id
task._extra['_gtasks_list_id'] = lid
task._extra['_gtasks_synced_at'] = now_ts
task.modified = now_ts
by_gtasks_id[new_id] = task
created = created + 1
@ -283,7 +294,7 @@ local function push_pass(access_token, tasklists, s, now_ts, by_gtasks_id)
end
end
end
return created, updated, deleted
return created, updated, deleted, failed
end
---@param access_token string
@ -293,14 +304,24 @@ end
---@param by_gtasks_id table<string, pending.Task>
---@return integer created
---@return integer updated
---@return integer failed
---@return table<string, true> seen_remote_ids
---@return table<string, true> fetched_list_ids
local function pull_pass(access_token, tasklists, s, now_ts, by_gtasks_id)
local created, updated = 0, 0
local created, updated, failed = 0, 0, 0
---@type table<string, true>
local seen_remote_ids = {}
---@type table<string, true>
local fetched_list_ids = {}
for list_name, list_id in pairs(tasklists) do
local items, err = list_gtasks(access_token, list_id)
if err then
log.warn('error fetching list ' .. list_name .. ': ' .. err)
failed = failed + 1
else
fetched_list_ids[list_id] = true
for _, gtask in ipairs(items or {}) do
seen_remote_ids[gtask.id] = true
local local_task = by_gtasks_id[gtask.id]
if local_task then
local gtask_updated = gtask.updated or ''
@ -310,6 +331,8 @@ local function pull_pass(access_token, tasklists, s, now_ts, by_gtasks_id)
for k, v in pairs(fields) do
local_task[k] = v
end
local_task._extra = local_task._extra or {}
local_task._extra['_gtasks_synced_at'] = now_ts
local_task.modified = now_ts
updated = updated + 1
end
@ -318,6 +341,7 @@ local function pull_pass(access_token, tasklists, s, now_ts, by_gtasks_id)
fields._extra = {
_gtasks_task_id = gtask.id,
_gtasks_list_id = list_id,
_gtasks_synced_at = now_ts,
}
local new_task = s:add(fields)
by_gtasks_id[gtask.id] = new_task
@ -326,7 +350,38 @@ local function pull_pass(access_token, tasklists, s, now_ts, by_gtasks_id)
end
end
end
return created, updated
return created, updated, failed, seen_remote_ids, fetched_list_ids
end
---@param s pending.Store
---@param seen_remote_ids table<string, true>
---@param fetched_list_ids table<string, true>
---@param now_ts string
---@return integer unlinked
local function detect_remote_deletions(s, seen_remote_ids, fetched_list_ids, now_ts)
local unlinked = 0
for _, task in ipairs(s:tasks()) do
local extra = task._extra or {}
local gtid = extra['_gtasks_task_id']
local list_id = extra['_gtasks_list_id']
if
task.status ~= 'deleted'
and gtid
and list_id
and fetched_list_ids[list_id]
and not seen_remote_ids[gtid]
then
task._extra['_gtasks_task_id'] = nil
task._extra['_gtasks_list_id'] = nil
task._extra['_gtasks_synced_at'] = nil
if next(task._extra) == nil then
task._extra = nil
end
task.modified = now_ts
unlinked = unlinked + 1
end
end
return unlinked
end
---@param access_token string
@ -374,14 +429,17 @@ function M.push()
---@cast s pending.Store
---@cast now_ts string
local by_gtasks_id = build_id_index(s)
local created, updated, deleted = push_pass(access_token, tasklists, s, now_ts, by_gtasks_id)
local created, updated, deleted, failed =
push_pass(access_token, tasklists, s, now_ts, by_gtasks_id)
s:save()
require('pending')._recompute_counts()
local buffer = require('pending.buffer')
if buffer.bufnr() and vim.api.nvim_buf_is_valid(buffer.bufnr()) then
buffer.render(buffer.bufnr())
end
log.info(string.format('Google Tasks pushed — +%d ~%d -%d', created, updated, deleted))
log.info(
string.format('Google Tasks pushed — +%d ~%d -%d !%d', created, updated, deleted, failed)
)
end)
end
@ -394,14 +452,24 @@ function M.pull()
---@cast s pending.Store
---@cast now_ts string
local by_gtasks_id = build_id_index(s)
local created, updated = pull_pass(access_token, tasklists, s, now_ts, by_gtasks_id)
local created, updated, failed, seen_remote_ids, fetched_list_ids =
pull_pass(access_token, tasklists, s, now_ts, by_gtasks_id)
local unlinked = detect_remote_deletions(s, seen_remote_ids, fetched_list_ids, now_ts)
s:save()
require('pending')._recompute_counts()
local buffer = require('pending.buffer')
if buffer.bufnr() and vim.api.nvim_buf_is_valid(buffer.bufnr()) then
buffer.render(buffer.bufnr())
end
log.info(string.format('Google Tasks pulled — +%d ~%d', created, updated))
log.info(
string.format(
'Google Tasks pulled — +%d ~%d !%d, unlinked: %d',
created,
updated,
failed,
unlinked
)
)
end)
end
@ -414,9 +482,11 @@ function M.sync()
---@cast s pending.Store
---@cast now_ts string
local by_gtasks_id = build_id_index(s)
local pushed_create, pushed_update, pushed_delete =
local pushed_create, pushed_update, pushed_delete, pushed_failed =
push_pass(access_token, tasklists, s, now_ts, by_gtasks_id)
local pulled_create, pulled_update = pull_pass(access_token, tasklists, s, now_ts, by_gtasks_id)
local pulled_create, pulled_update, pulled_failed, seen_remote_ids, fetched_list_ids =
pull_pass(access_token, tasklists, s, now_ts, by_gtasks_id)
local unlinked = detect_remote_deletions(s, seen_remote_ids, fetched_list_ids, now_ts)
s:save()
require('pending')._recompute_counts()
local buffer = require('pending.buffer')
@ -425,12 +495,15 @@ function M.sync()
end
log.info(
string.format(
'Google Tasks synced — push: +%d ~%d -%d, pull: +%d ~%d',
'Google Tasks synced — push: +%d ~%d -%d !%d, pull: +%d ~%d !%d, unlinked: %d',
pushed_create,
pushed_update,
pushed_delete,
pushed_failed,
pulled_create,
pulled_update
pulled_update,
pulled_failed,
unlinked
)
)
end)
@ -442,6 +515,9 @@ M._build_notes = build_notes
M._parse_notes = parse_notes
M._task_to_gtask = task_to_gtask
M._gtask_to_fields = gtask_to_fields
M._push_pass = push_pass
M._pull_pass = pull_pass
M._detect_remote_deletions = detect_remote_deletions
---@return nil
function M.health()