meng qingyou created ARROW-10967:
------------------------------------
Summary: Make env vars ARROW_TEST_DATA and PARQUET_TEST_DATA
optional
Key: ARROW-10967
URL: https://issues.apache.org/jira/browse/ARROW-10967
Project: Apache Arrow
Issue Type: Test
Reporter: meng qingyou
Facts/problems:
# Two vars *c* and *PARQUET_TEST_DATA* are required by be set for running
tests, benchmarks, examples.
# There are totally eighteen .rs files use these environment variables.
# The major usage likes this: ```
let testdata =
std::env::var("PARQUET_TEST_DATA").expect("PARQUET_TEST_DATA not defined");```
# Somebody tried to assembly the test data directories by appending relative
dir to *current dir* of current running process, but highly depend on the
actual current dir (for example, rust/, rust/datafusion, etc.).
Here is my solution:
Suppose：
# *current_dir* is ALWAYS inside the *git workspace dir*
# We know an *absolute dir X relative to git workspace dir*
Get absolute dir of X == get absolute dir *TOP* of *git workspace dir*.
Given *current dir* (in *git workspace dir*)，we visit the dir and it's parents,
check if ."git" （file or dir）exists. The first dir that contains ".git" SHOULD
be *git workspace dir*.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
