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🧹 Refactor fetchRepositories to improve code health#453

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code-health/refactor-fetch-repositories-883741474502430235
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🧹 Refactor fetchRepositories to improve code health#453
is0692vs wants to merge 1 commit into
mainfrom
code-health/refactor-fetch-repositories-883741474502430235

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@is0692vs

@is0692vs is0692vs commented Jul 10, 2026

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🎯 What: Extracted the GraphQL query and mapping logic from fetchRepositories into helper variables and functions.
💡 Why: fetchRepositories was getting overly long, hindering readability and maintainability.
Verification: Verified that existing unit tests (npm run test) continue to pass after the refactoring. Visually inspected diff to ensure no functionality is broken.
Result: Improved separation of concerns, maintaining exactly the same behavior while making fetchRepositories shorter and more readable.


PR created automatically by Jules for task 883741474502430235 started by @is0692vs

Greptile Summary

GraphQLクエリ文字列をモジュールレベルの定数 REPOSITORIES_GRAPHQL_QUERY へ、API呼び出し・ユーザー存在確認・フォーク除外・データ変換の各ロジックを fetchRepositoriesGraphQL ヘルパー関数へ抽出するリファクタリングです。fetchRepositories 本体の可読性が向上し、動作は完全に同一です。

  • REPOSITORIES_GRAPHQL_QUERY は静的文字列定数としてモジュールロード時に一度だけ評価されるため、インデント変更もGraphQLパーサには影響しません。
  • fetchRepositoriesGraphQL は非公開ヘルパーとして正しくモジュールスコープに閉じており、エクスポートはされていません。

Confidence Score: 5/5

純粋なリファクタリングであり、動作変更なし。安全にマージ可能です。

変更はすべて src/lib/github.ts 内に閉じており、GraphQLクエリの内容・フィルタロジック・エラー処理はそのまま移動されたのみです。GraphQLはホワイトスペースを無視するため、インデントの変更も動作に影響しません。fetchRepositoriesGraphQL は非公開ヘルパーとして正しくスコープされており、fetchRepositories のキャッシュ動作も変わっていません。

特に注目が必要なファイルはありません。

Important Files Changed

Filename Overview
src/lib/github.ts GraphQLクエリ文字列をモジュールレベルの定数 REPOSITORIES_GRAPHQL_QUERY に、クエリ実行ロジックを fetchRepositoriesGraphQL ヘルパー関数に抽出。動作の変更なし。

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A["fetchRepositories(username, token?)"] --> B{token あり?}
    B -- No --> C["fetchRepositoriesREST(username)"]
    B -- Yes --> D["fetchRepositoriesGraphQL(username, token)"]
    D --> E["graphql<RepositoriesResponse>(REPOSITORIES_GRAPHQL_QUERY, token, ...)"]    
    E --> F{data.user あり?}
    F -- No --> G["throw UserNotFoundError"]
    F -- Yes --> H["nodes.filter(r => !r.isFork)"]
    H --> I["processRepoData(repos)"]
    C --> J["restGet /users/:username/repos"]
    J --> K["processRepoData (REST版)"]
    I --> Z["RepositoryData を返す"]
    K --> Z
Loading
%%{init: {'theme': 'base', 'themeVariables': {"darkMode": true, "background": "#0d1117", "primaryColor": "#21262d", "primaryTextColor": "#e6edf3", "primaryBorderColor": "#8b949e", "lineColor": "#8b949e", "textColor": "#e6edf3", "edgeLabelBackground": "#161b22", "actorBkg": "#21262d", "actorBorder": "#8b949e", "actorTextColor": "#e6edf3", "actorLineColor": "#8b949e", "signalColor": "#8b949e", "signalTextColor": "#e6edf3", "noteBkgColor": "#373320", "noteBorderColor": "#d4a72c", "noteTextColor": "#f0e6c0", "labelBoxBkgColor": "#21262d", "labelBoxBorderColor": "#8b949e", "labelTextColor": "#e6edf3", "loopTextColor": "#e6edf3", "activationBkgColor": "#30363d", "activationBorderColor": "#8b949e"}}}%%
flowchart TD
    A["fetchRepositories(username, token?)"] --> B{token あり?}
    B -- No --> C["fetchRepositoriesREST(username)"]
    B -- Yes --> D["fetchRepositoriesGraphQL(username, token)"]
    D --> E["graphql<RepositoriesResponse>(REPOSITORIES_GRAPHQL_QUERY, token, ...)"]    
    E --> F{data.user あり?}
    F -- No --> G["throw UserNotFoundError"]
    F -- Yes --> H["nodes.filter(r => !r.isFork)"]
    H --> I["processRepoData(repos)"]
    C --> J["restGet /users/:username/repos"]
    J --> K["processRepoData (REST版)"]
    I --> Z["RepositoryData を返す"]
    K --> Z
Loading

Reviews (1): Last reviewed commit: "🧹 Extract GraphQL logic from fetchRepos..." | Re-trigger Greptile

Co-authored-by: is0692vs <135803462+is0692vs@users.noreply.github.com>
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Reviewing files that changed from the base of the PR and between 05bc250 and b6d44dd.

📒 Files selected for processing (1)
  • src/lib/github.ts
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Code Review

This pull request refactors src/lib/github.ts by extracting the GraphQL query and repository fetching logic from fetchRepositories into a dedicated helper function fetchRepositoriesGraphQL and a constant REPOSITORIES_GRAPHQL_QUERY. The reviewer noted that client-side filtering of fork repositories (!r.isFork) is redundant because the GraphQL query already specifies isFork: false, and suggested simplifying the filter to only remove potential null or undefined nodes.

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Comment thread src/lib/github.ts
throw new UserNotFoundError(username);
}

const repos = data.user.repositories.nodes.filter((r) => !r.isFork);

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medium

Since the GraphQL query REPOSITORIES_GRAPHQL_QUERY already specifies isFork: false in its arguments, the GitHub API will not return any fork repositories. Therefore, filtering the nodes with !r.isFork is redundant. You can simplify this by just filtering out any potential null/undefined nodes using filter(Boolean).

Suggested change
const repos = data.user.repositories.nodes.filter((r) => !r.isFork);
const repos = data.user.repositories.nodes.filter(Boolean);

@codecov

codecov Bot commented Jul 10, 2026

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Codecov Report

✅ All modified and coverable lines are covered by tests.

📢 Thoughts on this report? Let us know!

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