oauth2l を Homebrew でインストール

プロジェクトリンク

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コマンドとエイリアス

• oauth2l

プロジェクトの歴史

The google/oauth2l repository was created on 2016-03-31, making it one of the older maintained Go CLIs in this batch. Its README frames the project around the practical problem of turning Google OAuth credentials into command-line access tokens that can be passed to tools such as curl.

The project's 2022-07-19 v1.3.0 release was a security-oriented milestone: release notes added the three-legged OAuth loopback flow and PKCE support, replacing the deprecated copy-and-paste out-of-band pattern with a localhost redirect flow managed by oauth2l. Later releases in 2024 and 2025 focused on arm64 packaging, README updates, dependency upgrades, and vulnerability-scanner cleanup.

採用の歴史

The repository metadata recorded 731 stars and 91 forks, which is substantial for a single-provider token utility. The README documents multiple distribution paths: precompiled binaries for Darwin, Linux, and Windows; Homebrew; a Google Container Registry image; source builds with Go; and tagged container images.

Homebrew core packaged oauth2l with version 1.3.3 and the `oauth2l` executable in the 2026-07-01 formula JSON. The same formula recorded 1,500 installs over 365 days, showing broader package-manager use than the smaller Objective-C utilities in this batch.

使われ方

oauth2l's core commands map directly to shell auth workflows: `fetch` prints a bearer token, `header` formats it as an Authorization header, `curl` obtains a token and invokes curl, `info` prints token metadata, `test` validates a token via exit status, and `reset` clears the default `~/.oauth2l` cache.

The README's examples show why it remains useful even in environments with full Google SDKs installed: it can use existing gcloud sessions, explicit credential files, service-account JWTs, domain-wide delegation, and ambient GCE or GKE service-account credentials, then hand the resulting token to ordinary command-line tools.

パッケージ好きにとっての重要性

oauth2l is a classic glue package: small enough to install as a standalone executable, official enough to be trusted by Google API users, and practical enough to bridge heavyweight cloud authentication into scripts, tests, and ad hoc API calls.

タイムライン

• 2016-03-31: the public GitHub repository was created.
• 2022-07-19: v1.3.0 added the three-legged OAuth loopback flow and PKCE support.
• 2025-04-02: v1.3.3 updated dependencies and the Go version to address vulnerability-scanner findings.
• 2026-07-01: Homebrew core formula metadata listed stable version 1.3.3.

Related projects

• oauth2l pairs naturally with curl, Google Cloud SDK credentials, Google Cloud Console credential files, and Google service accounts. Compared with oauth2c, it trades generic OAuth breadth for Google-specific credential discovery and token workflows.

ソース

• https://api.github.com/repos/google/oauth2l
• https://api.github.com/repos/google/oauth2l/releases?per_page=5
• https://developers.google.com/identity/protocols/OAuth2
• https://formulae.brew.sh/api/formula/oauth2l.json
• https://github.com/google/oauth2l