64 lines
1.8 KiB
Bash
Executable File
64 lines
1.8 KiB
Bash
Executable File
#!/usr/bin/env bash
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#
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# Generate the CPython frozen getpath.py header into ignored build output.
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#
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# CPython's build documents this target in Makefile.pre.in:
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# Python/frozen_modules/getpath.h: Modules/getpath.py ...
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# Programs/_freeze_module.py getpath Modules/getpath.py Python/frozen_modules/getpath.h
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#
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# This script intentionally writes under build/generated/cpython/... so the
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# repository does not track generated bytecode headers or vendor files.
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#
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# Usage:
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# scripts/generate-getpath-frozen.sh [output-root]
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#
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# Output:
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# <output-root>/cpython/Python/frozen_modules/getpath.h
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# default output-root: build/generated
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set -u
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REPO_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
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CPYTHON_ROOT="$REPO_ROOT/cpython"
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OUTPUT_ROOT="${1:-$REPO_ROOT/build/generated}"
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OUT_DIR="$OUTPUT_ROOT/cpython/Python/frozen_modules"
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OUT_HEADER="$OUT_DIR/getpath.h"
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FREEZE_SCRIPT="$CPYTHON_ROOT/Programs/_freeze_module.py"
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INPUT="$CPYTHON_ROOT/Modules/getpath.py"
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usage() {
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sed -n '11,19p' "$REPO_ROOT/scripts/generate-getpath-frozen.sh"
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}
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if [ "${1:-}" = "-h" ] || [ "${1:-}" = "--help" ]; then
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usage
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exit 0
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fi
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for required in "$CPYTHON_ROOT" "$FREEZE_SCRIPT" "$INPUT"; do
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if [ ! -e "$required" ]; then
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echo "generate-getpath-frozen: missing prerequisite: $required" >&2
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exit 2
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fi
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done
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if ! command -v python3 >/dev/null 2>&1; then
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echo "generate-getpath-frozen: missing prerequisite: python3" >&2
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exit 2
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fi
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mkdir -p "$OUT_DIR"
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python3 "$FREEZE_SCRIPT" getpath "$INPUT" "$OUT_HEADER"
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status=$?
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if [ "$status" -ne 0 ]; then
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echo "generate-getpath-frozen: _freeze_module.py failed with exit $status" >&2
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exit "$status"
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fi
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if [ ! -s "$OUT_HEADER" ]; then
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echo "generate-getpath-frozen: expected nonempty output missing: $OUT_HEADER" >&2
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exit 2
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fi
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printf '%s\n' "${OUT_HEADER#$REPO_ROOT/}"
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