Remove commands duplication between compiletest and tests/rustdoc

Author: GuillaumeGomez

src/etc/htmldocck.py

@@ -240,237 +240,40 @@ def concat_multi_lines(f):
         print_err(lineno, line, 'Trailing backslash at the end of the file')
 
 
+def get_known_directive_names():
+    def filter_line(line):
+        line = line.strip()
+        return line.startswith('"') and (line.endswith('",') or line.endswith('"'))
+
+    # Equivalent to `src/tools/compiletest/src/header.rs` constant of the same name.
+    with open(
+        os.path.join(
+            # We go back to `src`.
+            os.path.dirname(os.path.dirname(__file__)),
+            "tools/compiletest/src/command-list.rs",
+        ),
+        "r",
+        encoding="utf8"
+    ) as fd:
+        content = fd.read()
+        return [
+            line.strip().replace('",', '').replace('"', '')
+            for line in content.split('\n')
+            if filter_line(line)
+        ]
+
+
+# To prevent duplicating the list of commmands between `compiletest` and `htmldocck`, we put
+# it into a common file which is included in rust code and parsed here.
+# FIXME: This setup is temporary until we figure out how to improve this situation.
+KNOWN_DIRECTIVE_NAMES = get_known_directive_names()
+
 LINE_PATTERN = re.compile(r'''
     //@\s+
     (?P<negated>!?)(?P<cmd>[A-Za-z]+(?:-[A-Za-z]+)*)
     (?P<args>.*)$
 ''', re.X | re.UNICODE)
 
-# Equivalent to `src/tools/compiletest/src/header.rs` constant of the same name.
-KNOWN_DIRECTIVE_NAMES = [
-    # tidy-alphabetical-start
-    "assembly-output",
-    "aux-bin",
-    "aux-build",
-    "aux-codegen-backend",
-    "aux-crate",
-    "build-aux-docs",
-    "build-fail",
-    "build-pass",
-    "check-fail",
-    "check-pass",
-    "check-run-results",
-    "check-stdout",
-    "check-test-line-numbers-match",
-    "compare-output-lines-by-subset",
-    "compile-flags",
-    "dont-check-compiler-stderr",
-    "dont-check-compiler-stdout",
-    "dont-check-failure-status",
-    "edition",
-    "error-pattern",
-    "exec-env",
-    "failure-status",
-    "filecheck-flags",
-    "forbid-output",
-    "force-host",
-    "ignore-16bit",
-    "ignore-32bit",
-    "ignore-64bit",
-    "ignore-aarch64",
-    "ignore-aarch64-unknown-linux-gnu",
-    "ignore-android",
-    "ignore-apple",
-    "ignore-arm",
-    "ignore-avr",
-    "ignore-beta",
-    "ignore-cdb",
-    "ignore-compare-mode-next-solver",
-    "ignore-compare-mode-polonius",
-    "ignore-cross-compile",
-    "ignore-debug",
-    "ignore-eabi",
-    "ignore-emscripten",
-    "ignore-endian-big",
-    "ignore-freebsd",
-    "ignore-fuchsia",
-    "ignore-gdb",
-    "ignore-gdb-version",
-    "ignore-gnu",
-    "ignore-haiku",
-    "ignore-horizon",
-    "ignore-i686-pc-windows-msvc",
-    "ignore-ios",
-    "ignore-linux",
-    "ignore-lldb",
-    "ignore-llvm-version",
-    "ignore-loongarch64",
-    "ignore-macabi",
-    "ignore-macos",
-    "ignore-mode-assembly",
-    "ignore-mode-codegen",
-    "ignore-mode-codegen-units",
-    "ignore-mode-coverage-map",
-    "ignore-mode-coverage-run",
-    "ignore-mode-crashes",
-    "ignore-mode-debuginfo",
-    "ignore-mode-incremental",
-    "ignore-mode-js-doc-test",
-    "ignore-mode-mir-opt",
-    "ignore-mode-pretty",
-    "ignore-mode-run-make",
-    "ignore-mode-run-pass-valgrind",
-    "ignore-mode-rustdoc",
-    "ignore-mode-rustdoc-json",
-    "ignore-mode-ui",
-    "ignore-mode-ui-fulldeps",
-    "ignore-msp430",
-    "ignore-msvc",
-    "ignore-musl",
-    "ignore-netbsd",
-    "ignore-nightly",
-    "ignore-none",
-    "ignore-nto",
-    "ignore-nvptx64",
-    "ignore-nvptx64-nvidia-cuda",
-    "ignore-openbsd",
-    "ignore-pass",
-    "ignore-remote",
-    "ignore-riscv64",
-    "ignore-s390x",
-    "ignore-sgx",
-    "ignore-spirv",
-    "ignore-stable",
-    "ignore-stage1",
-    "ignore-stage2",
-    "ignore-test",
-    "ignore-thumb",
-    "ignore-thumbv8m.base-none-eabi",
-    "ignore-thumbv8m.main-none-eabi",
-    "ignore-tvos",
-    "ignore-unix",
-    "ignore-unknown",
-    "ignore-uwp",
-    "ignore-visionos",
-    "ignore-vxworks",
-    "ignore-wasi",
-    "ignore-wasm",
-    "ignore-wasm32",
-    "ignore-wasm32-bare",
-    "ignore-wasm64",
-    "ignore-watchos",
-    "ignore-windows",
-    "ignore-windows-gnu",
-    "ignore-x32",
-    "ignore-x86",
-    "ignore-x86_64",
-    "ignore-x86_64-unknown-linux-gnu",
-    "incremental",
-    "known-bug",
-    "llvm-cov-flags",
-    "min-cdb-version",
-    "min-gdb-version",
-    "min-lldb-version",
-    "min-llvm-version",
-    "min-system-llvm-version",
-    "needs-asm-support",
-    "needs-dlltool",
-    "needs-dynamic-linking",
-    "needs-force-clang-based-tests",
-    "needs-git-hash",
-    "needs-llvm-components",
-    "needs-profiler-support",
-    "needs-relocation-model-pic",
-    "needs-run-enabled",
-    "needs-rust-lld",
-    "needs-rust-lldb",
-    "needs-sanitizer-address",
-    "needs-sanitizer-cfi",
-    "needs-sanitizer-dataflow",
-    "needs-sanitizer-hwaddress",
-    "needs-sanitizer-kcfi",
-    "needs-sanitizer-leak",
-    "needs-sanitizer-memory",
-    "needs-sanitizer-memtag",
-    "needs-sanitizer-safestack",
-    "needs-sanitizer-shadow-call-stack",
-    "needs-sanitizer-support",
-    "needs-sanitizer-thread",
-    "needs-threads",
-    "needs-unwind",
-    "needs-wasmtime",
-    "needs-xray",
-    "no-auto-check-cfg",
-    "no-prefer-dynamic",
-    "normalize-stderr-32bit",
-    "normalize-stderr-64bit",
-    "normalize-stderr-test",
-    "normalize-stdout-test",
-    "only-16bit",
-    "only-32bit",
-    "only-64bit",
-    "only-aarch64",
-    "only-apple",
-    "only-arm",
-    "only-avr",
-    "only-beta",
-    "only-bpf",
-    "only-cdb",
-    "only-gnu",
-    "only-i686-pc-windows-msvc",
-    "only-ios",
-    "only-linux",
-    "only-loongarch64",
-    "only-loongarch64-unknown-linux-gnu",
-    "only-macos",
-    "only-mips",
-    "only-mips64",
-    "only-msp430",
-    "only-msvc",
-    "only-nightly",
-    "only-nvptx64",
-    "only-riscv64",
-    "only-sparc",
-    "only-sparc64",
-    "only-stable",
-    "only-thumb",
-    "only-tvos",
-    "only-unix",
-    "only-visionos",
-    "only-wasm32",
-    "only-wasm32-bare",
-    "only-wasm32-wasip1",
-    "only-watchos",
-    "only-windows",
-    "only-x86",
-    "only-x86_64",
-    "only-x86_64-fortanix-unknown-sgx",
-    "only-x86_64-pc-windows-gnu",
-    "only-x86_64-pc-windows-msvc",
-    "only-x86_64-unknown-linux-gnu",
-    "pp-exact",
-    "pretty-compare-only",
-    "pretty-expanded",
-    "pretty-mode",
-    "regex-error-pattern",
-    "remap-src-base",
-    "revisions",
-    "run-fail",
-    "run-flags",
-    "run-pass",
-    "run-rustfix",
-    "rustc-env",
-    "rustfix-only-machine-applicable",
-    "should-fail",
-    "should-ice",
-    "stderr-per-bitwidth",
-    "test-mir-pass",
-    "unset-exec-env",
-    "unset-rustc-env",
-    # Used by the tidy check `unknown_revision`.
-    "unused-revision-names",
-    # tidy-alphabetical-end
-]
 
 def get_commands(template):
     with io.open(template, encoding='utf-8') as f: