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docs: Update notice about rctx.getenv on Bazel 7 #1797

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Mar 12, 2024
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docs: Update notice about rctx.getenv on Bazel 7 #1797

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9 changes: 4 additions & 5 deletions python/pip_install/pip_repository.bzl
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Original file line number Diff line number Diff line change
Expand Up @@ -202,10 +202,9 @@ def _parse_optional_attrs(rctx, args):
if use_isolated(rctx, rctx.attr):
args.append("--isolated")

# At the time of writing, the very latest Bazel, as in `USE_BAZEL_VERSION=last_green bazelisk`
# supports rctx.getenv(name, default): When building incrementally, any change to the value of
# the variable named by name will cause this repository to be re-fetched. That hasn't yet made
# its way into the official releases, though.
# Bazel version 7.1.0 and later (and rolling releases from version 8.0.0-pre.20240128.3)
# support rctx.getenv(name, default): When building incrementally, any change to the value of
# the variable named by name will cause this repository to be re-fetched.
if "getenv" in dir(rctx):
getenv = rctx.getenv
else:
Expand Down Expand Up @@ -457,7 +456,7 @@ A list of environment variables to substitute (e.g. `["PIP_INDEX_URL",
"PIP_RETRIES"]`). The corresponding variables are expanded in `extra_pip_args`
using the syntax `$VARNAME` or `${VARNAME}` (expanding to empty string if unset)
or `${VARNAME:-default}` (expanding to default if the variable is unset or empty
in the environment). Note: On Bazel 6 and Bazel 7 changes to the variables named
in the environment). Note: On Bazel 6 and Bazel 7.0 changes to the variables named
here do not cause packages to be re-fetched. Don't fetch different things based
on the value of these variables.
""",
Expand Down
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