refactor: reading page review

Signed-off-by: João Augusto Costa Branco Marado Torres <torres.dev@disroot.org>

1 files changed, 99 insertions, 63 deletions

diff --git a/src/lib/git/log.ts b/src/lib/git/log.ts
index bcf6888..4545f17 100644
--- a/src/lib/git/log.ts
+++ b/src/lib/git/log.ts
@@ -1,4 +1,4 @@
-import { defined } from "../../utils/anonymous.ts";
+import { defined, get } from "../../utils/anonymous.ts";
 import { type MaybeIterable, surelyIterable } from "../../utils/iterator.ts";
 import { gitDir } from "./index.ts";
 import type { Commit, CommitFile } from "./types.ts";
@@ -23,72 +23,86 @@ export async function getLastCommitForOneOfFiles(
   sources: MaybeIterable<URL>,
 ): Promise<Commit | undefined> {
   const files = surelyIterable(sources);
-  const gitLog = new Deno.Command("git", {
-    args: [
-      "log",
-      "-1",
-      `--pretty=format:${format.map((x) => `%${x}`).join("%n")}`,
-      "--",
-      // deno-lint-ignore no-undef
-      ...Iterator.from(files).map((x) => x.pathname),
-    ],
-  });
+  const gitLogs = (await Promise.all(
+    Iterator.from(files).map(async ({ pathname }) => {
+      const gitLog = new Deno.Command("git", {
+        args: [
+          "log",
+          "--follow",
+          "-1",
+          `--pretty=format:${format.map((x) => `%${x}`).join("%n")}`,
+          "--",
+          pathname,
+        ],
+      });
+      const { stdout } = await gitLog.output();
+      const result = new TextDecoder().decode(stdout).trim();
 
-  const { stdout } = await gitLog.output();
-  const result = new TextDecoder().decode(stdout).trim();
+      if (result.length <= 0) {
+        return undefined;
+      }
 
-  if (result.length <= 0) {
-    return undefined;
-  }
+      const [
+        hash,
+        abbrHash,
+        authorDate,
+        authorName,
+        authorEmail,
+        committerDate,
+        committerName,
+        committerEmail,
+        // signatureValidation,
+        signer,
+        key,
+        keyFingerPrint,
+        ...rawLines
+      ] = result.split("\n");
 
-  const [
-    hash,
-    abbrHash,
-    authorDate,
-    authorName,
-    authorEmail,
-    committerDate,
-    committerName,
-    committerEmail,
-    // signatureValidation,
-    signer,
-    key,
-    keyFingerPrint,
-    ...rawLines
-  ] = result.split("\n");
-
-  const raw = rawLines.join("\n").trim();
-
-  const commit: Commit = {
-    // deno-lint-ignore no-undef
-    files: await fileStatusFromCommit(hash, Iterator.from(files)),
-    hash: { long: hash, short: abbrHash },
-    author: {
-      date: new Date(authorDate),
-      name: authorName,
-      email: authorEmail,
-    },
-    committer: {
-      date: new Date(committerDate),
-      name: committerName,
-      email: committerEmail,
-    },
-  };
-
-  if (raw.length > 0) {
-    commit.signature = {
-      type: raw.startsWith("gpgsm:")
-        ? "x509"
-        : raw.startsWith("gpg:")
-        ? "gpg"
-        : "ssh",
-      signer,
-      key: { long: keyFingerPrint, short: key },
-      rawMessage: raw,
-    };
-  }
+      const raw = rawLines.join("\n").trim();
+
+      const commit: Commit = {
+        // deno-lint-ignore no-undef
+        files: await fileStatusFromCommit(hash, Iterator.from(files)),
+        hash: { long: hash, short: abbrHash },
+        author: {
+          date: new Date(authorDate),
+          name: authorName,
+          email: authorEmail,
+        },
+        committer: {
+          date: new Date(committerDate),
+          name: committerName,
+          email: committerEmail,
+        },
+      };
+
+      if (raw.length > 0) {
+        commit.signature = {
+          type: raw.startsWith("gpgsm:")
+            ? "x509"
+            : raw.startsWith("gpg:")
+            ? "gpg"
+            : "ssh",
+          signer,
+          key: { long: keyFingerPrint, short: key },
+          rawMessage: raw,
+        };
+      }
+
+      return commit;
+    }),
+  )).filter(defined);
+
+  const last = gitLogs.sort(({ committer: a }, { committer: b }) =>
+    b.date.getTime() - a.date.getTime()
+  )?.[0];
+
+  if (last === undefined) return undefined;
 
-  return commit;
+  const final = gitLogs.filter(({ hash }) => hash.long === last.hash.long);
+
+  last.files = final.flatMap(get("files"));
+  return last;
 }
 
 async function fileStatusFromCommit(
@@ -132,3 +146,25 @@ async function fileStatusFromCommit(
     return undefined;
   }).filter(defined);
 }
+
+export async function fileCreationCommitDate(
+  file: URL,
+): Promise<Date | undefined> {
+  const gitDiffTree = new Deno.Command("git", {
+    args: [
+      "log",
+      "--follow",
+      "--diff-filter=A",
+      "--format=%cI",
+      "--",
+      file.pathname,
+    ],
+  });
+
+  const { stdout } = await gitDiffTree.output();
+  try {
+    return new Date(new TextDecoder().decode(stdout).trim());
+  } catch {
+    return undefined;
+  }
+}