bazel aquery --include_param_files does not work for CppCompile
- Dominant language
- Java
- Stars
- 25.8k
- Forks
- 4.6k
- Avg merge
- 2d 20h
- Merged PRs (30d)
- 72
Description
### Description of the bug:
`bazel aquery //cc_shared_lib/liba:liba_base --include_commandline --include_param_files` should include expanded content of all param files in its output. However, for CppCompile actions, param files are not expanded.
Reproducer:
```
git clone https://github.com/peakschris/bazel-shared-lib-bug (ignore the repo name)
cd bazel-shared-lib-bug
bazel aquery //cc_shared_lib/liba:liba_base --include_commandline --include_param_files
```
Outputs:
```
Mnemonic: CppCompile
Target: //cc_shared_lib/liba:liba_base
Configuration: x64_windows-fastbuild
Execution platform: @platforms//host:host
ActionKey: e0e07bb49c999a0ca4edac19ff80b6ee70e220825d9aee65b055883e2d048762
Inputs: [cc_shared_lib/liba/fun.cpp, cc_shared_lib/liba/fun.h, cc_shared_lib/liba/liba_exports.h, cc_shared_lib/liba/liba_undef.h, external/bazel_tools~cc_configure_extension~local_config_cc/builtin_include_directory_paths_msvc]
Outputs: [bazel-out/x64_windows-fastbuild/bin/cc_shared_lib/liba/_objs/liba_base/fun.obj]
Environment: [PATH=, RUNFILES_MANIFEST_ONLY=1]
Command Line: c:\apps\MVS174\VC\Tools\MSVC\14.34.31933\bin\HostX64\x64\cl.exe \
@bazel-out/x64_windows-fastbuild/bin/cc_shared_lib/liba/_objs/liba_base/fun.obj.params
# Configuration: cfcdc0c472480d5083db8bc3726bd13fed7c1092a36217c0be7b5630e2f35326
# Execution platform: @@platforms//host:host
```
Note, the params file is not expanded for the CppCompile action. The link action *does* include the expanded params file.
### Which category does this issue belong to?
C++ Rules
### What's the simplest, easiest way to reproduce this bug? Please provide a minimal example if possible.
_No response_
### Which operating system are you running Bazel on?
Windows
### What is the output of `bazel info release`?
bazel 7.3.1
### If `bazel info release` returns `development version` or `(@non-git)`, tell us how you built Bazel.
_No response_
### What's the output of `git remote get-url origin; git rev-parse HEAD` ?
_No response_
### If this is a regression, please try to identify the Bazel commit where the bug was introduced with bazelisk --bisect.
_No response_
### Have you found anything relevant by searching the web?
_No response_
### Any other information, logs, or outputs that you want to share?
_No response_
Contributor guide
Research direction
Start with the provided bazel aquery command in the bazel-shared-lib-bug reproducer on Windows using Bazel 7.3.1. Compare the CppCompile output with the link action, focusing on why --include_param_files expands one action's params but not the other's. Done means CppCompile output includes the expanded parameter-file content and the behavior is covered by an appropriate regression test.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- build-system
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 48/100