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bazel-aquery-differ

This is a port of https://github.com/bazelbuild/bazel/blob/master/tools/aquery_differ/aquery_differ.py to golang.

Installation

Download and unzip a release artifact, or clone and bazel build //cmd/aquerydiff.

Usage

aquerydiff --before <BEFORE_FILE> --after <AFTER_FILE> --report_dir <REPORT_DIR>

You can generate the <BEFORE_FILE> (and <AFTER_FILE>) using:

bazel aquery //pkg:target-name --output jsonproto > before.json
bazel aquery //pkg:target-name --output textproto > before.textproto
bazel aquery //pkg:target-name --output proto > before.pb

The file extensions are relevant; the proto decoder will be protojson if .json, prototext if .textproto and proto otherwise.

An HTML report and accessory files will be written to the given --report_dir, which you could serve as follows:

(cd <REPORT_DIR> && python3 -m http.server 8000) &

Report will look something like: