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[dotnet] [build] Support deterministic build output #17497

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Merged
nvborisenko merged 2 commits into from
May 18, 2026
Merged

[dotnet] [build] Support deterministic build output #17497

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[dotnet] [build] Support deterministic build output
nvborisenko May 18, 2026
2a92102
Don't use split
nvborisenko May 18, 2026
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8 changes: 7 additions & 1 deletion dotnet/private/sourcelink.bzl
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Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,12 @@ def _compile_action(ctx, tfm):
ctx.attr._windows_constraint[platform_common.ConstraintValueInfo],
)
sourcelink_json = _generate_sourcelink_json(ctx)

# Map the Bazel execution root to a stable prefix so that builds
# are byte-for-byte reproducible regardless of sandbox path.
exec_root = ctx.bin_dir.path.split("/bin/")[0] + "/"
pathmap = "/pathmap:{}=/_/".format(exec_root)

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return AssemblyAction(
ctx.actions,
ctx.executable._compiler_wrapper_bat if is_windows else ctx.executable._compiler_wrapper_sh,
Expand Down Expand Up @@ -70,7 +76,7 @@ def _compile_action(ctx, tfm):
is_analyzer = ctx.attr.is_analyzer,
is_language_specific_analyzer = ctx.attr.is_language_specific_analyzer,
analyzer_configs = ctx.files.analyzer_configs,
compiler_options = ctx.attr.compiler_options + ["/sourcelink:" + sourcelink_json.path],
compiler_options = ctx.attr.compiler_options + [pathmap, "/sourcelink:" + sourcelink_json.path],
is_windows = is_windows,
)

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