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-rwxr-xr-xUtilities/Scripts/clang-format.bash47
1 files changed, 45 insertions, 2 deletions
diff --git a/Utilities/Scripts/clang-format.bash b/Utilities/Scripts/clang-format.bash
index 2090a1a..760a8d4 100755
--- a/Utilities/Scripts/clang-format.bash
+++ b/Utilities/Scripts/clang-format.bash
@@ -17,7 +17,34 @@
usage='usage: clang-format.bash [<options>] [--]
- --clang-format <tool> Use given clang-format tool.
+ --help Print usage plus more detailed help.
+
+ --clang-format <tool> Use given clang-format tool.
+
+ --amend Filter files changed by HEAD.
+ --cached Filter files locally staged for commit.
+ --modified Filter files locally modified from HEAD.
+ --tracked Filter files tracked by Git.
+'
+
+help="$usage"'
+Example to format locally modified files:
+
+ Utilities/Scripts/clang-format.bash --modified
+
+Example to format locally modified files staged for commit:
+
+ Utilities/Scripts/clang-format.bash --cached
+
+Example to format the current topic:
+
+ git filter-branch \
+ --tree-filter "Utilities/Scripts/clang-format.bash --amend" \
+ master..
+
+Example to format all files:
+
+ Utilities/Scripts/clang-format.bash --tracked
'
die() {
@@ -28,9 +55,15 @@ die() {
# Parse command-line arguments.
clang_format=''
+mode=''
while test "$#" != 0; do
case "$1" in
+ --amend) mode="amend" ;;
+ --cached) mode="cached" ;;
--clang-format) shift; clang_format="$1" ;;
+ --help) echo "$help"; exit 0 ;;
+ --modified) mode="modified" ;;
+ --tracked) mode="tracked" ;;
--) shift ; break ;;
-*) die "$usage" ;;
*) break ;;
@@ -59,8 +92,18 @@ if ! type -p "$clang_format" >/dev/null; then
exit 1
fi
+# Select listing mode.
+case "$mode" in
+ '') echo "$usage"; exit 0 ;;
+ amend) git_ls='git diff-tree --diff-filter=AM --name-only HEAD -r --no-commit-id' ;;
+ cached) git_ls='git diff-index --diff-filter=AM --name-only HEAD --cached' ;;
+ modified) git_ls='git diff-index --diff-filter=AM --name-only HEAD' ;;
+ tracked) git_ls='git ls-files' ;;
+ *) die "invalid mode: $mode" ;;
+esac
+
# Filter sources to which our style should apply.
-git ls-files -z -- '*.c' '*.cc' '*.cpp' '*.cxx' '*.h' '*.hh' '*.hpp' '*.hxx' |
+$git_ls -z -- '*.c' '*.cc' '*.cpp' '*.cxx' '*.h' '*.hh' '*.hpp' '*.hxx' |
# Exclude lexer/parser generator input and output.
egrep -z -v '^Source/cmCommandArgumentLexer\.' |