andygrove commented on a change in pull request #8313:
URL: https://github.com/apache/arrow/pull/8313#discussion_r498601108
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File path: rust/README.md
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@@ -51,11 +72,11 @@ This populates data in two git submodules:
Create two new environment variables to point to these directories as follows:
```bash
-export PARQUET_TEST_DATA=/path/to/arrow/cpp/submodules/parquet-testing/data
-export ARROW_TEST_DATA=/path/to/arrow/testing/data/
+export PARQUET_TEST_DATA=../../cpp/submodules/parquet-testing/data
Review comment:
Relative paths potentially won't work when running `cargo test` from
within the crate directories themselves rather than from the workspace
directory. Perhaps we could do this instead?
```
export PARQUET_TEST_DATA=`pwd`/../../cpp/submodules/parquet-testing/data
export ARROW_TEST_DATA=`pwd`/../../testing/data/
```
I'm assuming this works both on Mac and Linux, at least.
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