[PATCH] D128984: [clang-format] Tweak help text a bit

Nico Weber via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Sun Jul 3 12:55:09 PDT 2022

This revision was automatically updated to reflect the committed changes.
Closed by commit rGb1f0efc06acc: [clang-format] Tweak help text a bit (authored by thakis).
Herald added a project: clang.

  rG LLVM Github Monorepo




Index: clang/tools/clang-format/ClangFormat.cpp
--- clang/tools/clang-format/ClangFormat.cpp
+++ clang/tools/clang-format/ClangFormat.cpp
@@ -70,16 +70,18 @@
                   cl::desc("The name of the predefined style used as a\n"
                            "fallback in case clang-format is invoked with\n"
                            "-style=file, but can not find the .clang-format\n"
-                           "file to use.\n"
+                           "file to use. Defaults to 'LLVM'.\n"
                            "Use -fallback-style=none to skip formatting."),
 static cl::opt<std::string> AssumeFileName(
-    cl::desc("Override filename used to determine the language.\n"
-             "When reading from stdin, clang-format assumes this\n"
-             "filename to determine the language.\n"
+    cl::desc("Set filename used to determine the language and to find\n"
+             ".clang-format file.\n"
+             "Only used when reading from stdin.\n"
+             "If this is not passed, the .clang-format file is searched\n"
+             "relative to the current working directory when reading stdin.\n"
              "Unrecognized filenames are treated as C++.\n"
              "  CSharp: .cs\n"
Index: clang/lib/Format/Format.cpp
--- clang/lib/Format/Format.cpp
+++ clang/lib/Format/Format.cpp
@@ -3433,17 +3433,19 @@
 const char *StyleOptionHelpDescription =
-    "Coding style, currently supports:\n"
-    "  LLVM, GNU, Google, Chromium, Microsoft, Mozilla, WebKit.\n"
-    "Use -style=file to load style configuration from\n"
-    ".clang-format file located in one of the parent\n"
-    "directories of the source file (or current\n"
-    "directory for stdin).\n"
-    "Use -style=file:<format_file_path> to explicitly specify\n"
-    "the configuration file.\n"
-    "Use -style=\"{key: value, ...}\" to set specific\n"
-    "parameters, e.g.:\n"
-    "  -style=\"{BasedOnStyle: llvm, IndentWidth: 8}\"";
+    "Set coding style. <string> can be:\n"
+    "1. A preset: LLVM, GNU, Google, Chromium, Microsoft,\n"
+    "   Mozilla, WebKit.\n"
+    "2. 'file' to load style configuration from a\n"
+    "   .clang-format file in one of the parent directories\n"
+    "   of the source file (for stdin, see --assume-filename).\n"
+    "   If no .clang-format file is found, falls back to\n"
+    "   --fallback-style.\n"
+    "   --style=file is the default.\n"
+    "3. 'file:<format_file_path>' to explicitly specify\n"
+    "   the configuration file.\n"
+    "4. \"{key: value, ...}\" to set specific parameters, e.g.:\n"
+    "   --style=\"{BasedOnStyle: llvm, IndentWidth: 8}\"";
 static FormatStyle::LanguageKind getLanguageByFileName(StringRef FileName) {
   if (FileName.endswith(".java"))
@@ -3498,6 +3500,7 @@
   return GuessedLanguage;
+// Update StyleOptionHelpDescription above when changing this.
 const char *DefaultFormatStyle = "file";
 const char *DefaultFallbackStyle = "LLVM";

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