bazelbuild/bazel

Allow env file with "bazel test"

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#955 opened on Feb 22, 2016

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 (18 comments) (26 reactions) (0 assignees)Java (25,384 stars) (4,465 forks)batch import
P3help wantednot staleteam-Coretype: feature request

Description

Currently, you can pass environment variables one at a time with --test_env. It would be nice to be able to pass an entire file of env variables to bazel test with something like:

bazel test --test_env_file=.env //...

env are becoming semi-standard, and lots of tools understand how to read them. For example:

This improvement would allow people to use their existing env files with bazel.

Contributor guide

Tech stack
java
Domain
build systemcli
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Bazel build system basicsJavaCLI argument parsing
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60
Research direction
Investigate how the current test env flag is implemented in src/main/java/com/google/devtools/build/lib/rules/test/. Look at command line parsing classes (e.g., OptionsBase subclasses) to add a new test env file flag. Consider using a dotenv like library for parsing .env files. Review the issue comments for any prior discussion on implementation approach.