dbhash を Homebrew でインストール

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• dbhash

プロジェクトの歴史

The official SQLite documentation describes dbhash as part of SQLite's source tree, implemented by the single C source file tool/dbhash.c. The SQLite source repository is a Fossil repository whose README says it contains SQLite source history going back to May 2000.

採用の歴史

dbhash is a specialist utility rather than a broad application. Its adoption comes from SQLite's ubiquity: database users often need to compare two SQLite files whose on-disk bytes differ after VACUUM, page-size changes, journal-mode changes, backup, or other operations, while the logical schema and content remain equivalent.

使われ方

Users run dbhash with one or more SQLite database files and compare the resulting hashes. The official documentation also notes options for restricting hashing to specific tables, content only, or schema only, making it useful in tests, release checks, and remote verification where transferring a whole database would be expensive.

パッケージ好きにとっての重要性

For package maintainers and database-heavy developers, dbhash is a small example of SQLite's tool-first culture: a single-purpose binary built from the canonical source tree that solves a real reproducibility problem better than hashing database files byte-for-byte.

タイムライン

• 2000: SQLite source repository history begins, according to the official repository README.
• 2025: The dbhash documentation page records a May 2025 update.
• Present: The official docs describe building dbhash from the canonical SQLite source tree.

Related projects

• dbhash is closely tied to SQLite itself and related SQLite maintenance tools. It complements SQLite backup, VACUUM, REINDEX, ANALYZE, and schema inspection workflows by comparing logical database content.

ソース

• https://www.sqlite.org/dbhash.html
• https://www.sqlite.org/src/dir?ci=trunk
• https://sqlite.org/src