serverAPIState: remove latestCommitTree states

Summary: Those (without preview) states are replaced by latestDag.

Reviewed By: evangrayk

Differential Revision: D51813805

fbshipit-source-id: 8ddcbbb8638402284bccbcaddbbc1e39544976ae

addons/isl/src/getCommitTree.ts

@@ -6,7 +6,7 @@
  */
 
 import type {CommitPreview, Dag, WithPreviewType} from './previews';
-import type {CommitInfo, Hash} from './types';
+import type {CommitInfo} from './types';
 
 export type CommitTree = {
   info: CommitInfo;
@@ -130,11 +130,3 @@ export function findCurrentPublicBase(dag?: Dag): CommitInfo | undefined {
   }
   return undefined;
 }
-
-export function makeTreeMap(trees: Array<CommitTree>): Map<Hash, CommitTree> {
-  const map = new Map();
-  for (const tree of walkTreePostorder(trees)) {
-    map.set(tree.info.hash, tree);
-  }
-  return map;
-}

addons/isl/src/serverAPIState.ts

@@ -6,7 +6,6 @@
  */
 
 import type {MessageBusStatus} from './MessageBus';
-import type {CommitTree} from './getCommitTree';
 import type {Operation} from './operations/Operation';
 import type {
   ApplicationInfo,
@@ -28,7 +27,6 @@ import serverAPI from './ClientToServerAPI';
 import messageBus from './MessageBus';
 import {latestSuccessorsMap, successionTracker} from './SuccessionTracker';
 import {Dag} from './dag/dag';
-import {makeTreeMap, getCommitTree} from './getCommitTree';
 import {persistAtomToConfigEffect} from './persistAtomToConfigEffect';
 import {clearOnCwdChange} from './recoilUtils';
 import {initialParams} from './urlParams';
@@ -385,20 +383,6 @@ export const commitsShownRange = atom<number | undefined>({
   ],
 });
 
-/**
- * Latest fetched commit tree from the server, without any previews.
- * Prefer using `treeWithPreviews.trees`, since it includes optimistic state
- * and previews.
- */
-export const latestCommitTree = selector<Array<CommitTree>>({
-  key: 'latestCommitTree',
-  get: ({get}) => {
-    const commits = get(latestCommits);
-    const tree = getCommitTree(commits);
-    return tree;
-  },
-});
-
 /**
  * Latest head commit from original data from the server, without any previews.
  * Prefer using `treeWithPreviews.headCommit`, since it includes optimistic state
@@ -412,21 +396,6 @@ export const latestHeadCommit = selector<CommitInfo | undefined>({
   },
 });
 
-/**
- * Mapping of commit hash -> subtree at that commit
- * Latest mapping of commit hash -> subtree at that commit from original data
- * from the server, without any previews.
- * Prefer using `treeWithPreviews.treeMap`, since it includes
- * optimistic state and previews.
- */
-export const latestCommitTreeMap = selector<Map<Hash, CommitTree>>({
-  key: 'latestCommitTreeMap',
-  get: ({get}) => {
-    const trees = get(latestCommitTree);
-    return makeTreeMap(trees);
-  },
-});
-
 /**
  * No longer in the "loading" state:
  * - Either the list of commits has successfully loaded