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perf: remove allocations from eav->datom

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Tienson Qin
2023-05-31 04:33:14 +08:00
parent bbaab64241
commit 4b3d9ea16b
1 changed files with 18 additions and 22 deletions
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40
src/main/frontend/db/restore.cljs
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@@ -64,19 +64,17 @@
(d/transact! db-conn [{:schema/version db-schema/version}])))
(defn- eav->datom
[uuid->eid-map col & {:keys [eid]}]
(let [[e a v] (if eid (cons eid col) col)]
(->>
(cond
(and (= :block/uuid a) (string? v))
[e a (uuid v)]
[uuid->db-id-map [e a v]]
(let [v' (cond
(and (= :block/uuid a) (string? v))
(uuid v)
(and (coll? v) (= :block/uuid (first v)) (string? (second v)))
[e a (get uuid->eid-map (second v) v)]
(and (coll? v) (= :block/uuid (first v)) (string? (second v)))
(get uuid->db-id-map (second v) v)
:else
[e a v])
(apply d/datom))))
:else
v)]
(d/datom e a v')))
(defn- restore-other-data-from-sqlite!
[repo data uuid->db-id-map]
@@ -93,17 +91,15 @@
(conj! unloaded-block-ids (gobj/get b "uuid") (gobj/get b "page_uuid")))
(state/set-state! [repo :restore/unloaded-blocks] (persistent! unloaded-block-ids))))
(util/profile
"build datoms"
(doseq [block data]
(let [uuid (gobj/get block "uuid")
eid (get uuid->db-id-map uuid)]
(assert eid (str "Can't find eid " eid ", block: " block))
(let [avs (->> (gobj/get block "datoms")
(transit/read t-reader))]
(doseq [av avs]
(let [datom (eav->datom uuid->db-id-map av :eid eid)]
(conj! datoms datom)))))))
(doseq [block data]
(let [uuid (gobj/get block "uuid")
eid (get uuid->db-id-map uuid)
_ (assert eid (str "Can't find eid " eid ", block: " block))
avs (->> (gobj/get block "datoms")
(transit/read t-reader))]
(doseq [[a v] avs]
(let [datom (eav->datom uuid->db-id-map [eid a v])]
(conj! datoms datom)))))
(let [all-datoms (persistent! datoms)
new-db (util/profile