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pre-commit

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+#!/bin/sh
+# Git pre-commit hook that runs multiple hooks specified in $HOOKS.
+# Make sure this script is executable. Bypass hooks with git commit --no-verify.
+
+# This file is part of a set of unofficial pre-commit hooks available
+# at github.
+# Link:    https://github.com/ddddavidmartin/Pre-commit-hooks
+# Contact: David Martin, ddddavidmartin@fastmail.com
+
+###########################################################
+# There should be no need to change anything below this line.
+# For configuration see pre-commit.cfg and pre-commit.example.cfg.
+
+# exit on error
+set -e
+
+# Absolute path to this script, e.g. /home/user/bin/foo.sh
+SCRIPT="$(readlink -f "$0")"
+# Absolute path this script is in, thus /home/user/bin
+SCRIPTPATH="$(dirname -- "$SCRIPT")"
+CONFIG="$SCRIPTPATH/pre-commit.cfg"
+
+if [ ! -f "$CONFIG" ] ; then
+    echo "Missing config file $CONFIG."
+    echo "You can skip all pre-commit hooks with --no-verify (not recommended)."
+    exit 1
+else
+    . "$CONFIG"
+fi
+
+for hook in $HOOKS
+do
+    echo "Running hook: $hook"
+    # run hook if it exists
+    # if it returns with nonzero exit with 1 and thus abort the commit
+    if [ -f "$SCRIPTPATH/$hook" ]; then
+        "$SCRIPTPATH/$hook"
+        if [ $? != 0 ]; then
+            exit 1
+        fi
+    else
+        echo "Error: file $hook not found."
+        echo "Aborting commit. Make sure the hook is in $SCRIPTPATH and executable."
+        echo "You can disable it by removing it from the list in $CONFIG."
+        echo "You can skip all pre-commit hooks with --no-verify (not recommended)."
+        exit 1
+    fi
+done

pre-commit-uncrustify

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+#!/bin/sh
+
+# git pre-commit hook that runs an Uncrustify stylecheck.
+# Features:
+#  - abort commit when commit does not comply with the style guidelines
+#  - create a patch of the proposed style changes
+#
+# More info on Uncrustify: http://uncrustify.sourceforge.net/
+
+# This file is part of a set of unofficial pre-commit hooks available
+# at github.
+# Link:    https://github.com/ddddavidmartin/Pre-commit-hooks
+# Contact: David Martin, ddddavidmartin@fastmail.com
+
+##################################################################
+# There should be no need to change anything below this line.
+# For configuration see pre-commit-uncrustify.cfg and
+# pre-commit-uncrustify.example.cfg.
+
+# exit on error
+set -e
+
+# Absolute path to this script, e.g. /home/user/bin/foo.sh
+SCRIPT="$(readlink -f "$0")"
+# Absolute path this script is in, e.g. /home/user/bin/
+SCRIPTPATH="$(dirname -- "$SCRIPT")"
+CONFIG="$SCRIPTPATH/pre-commit-uncrustify.cfg"
+REPO="$(git rev-parse --show-toplevel)"
+
+if [ ! -f "$CONFIG" ] ; then
+    echo "Missing config file $CONFIG."
+    exit 1
+else
+    . "$CONFIG"
+fi
+
+
+# check whether the given file matches any of the set extensions
+matches_extension() {
+    local filename="$(basename -- "$1")"
+    local extension=".${filename##*.}"
+    local ext
+
+    for ext in $FILE_EXTS; do [ "$ext" = "$extension" ] && return 0; done
+
+    return 1
+}
+
+# necessary check for initial commit
+if git rev-parse --verify HEAD >/dev/null 2>&1 ; then
+    against=HEAD
+else
+    # Initial commit: diff against an empty tree object
+    against=4b825dc642cb6eb9a060e54bf8d69288fbee4904
+fi
+
+# make sure the config file and executable are correctly set
+if [ ! -f "$UNCRUST_CONFIG" ] ; then
+    printf "Error: uncrustify config file not found.\n"
+    printf "Set the correct path in $CONFIG.\n"
+    exit 1
+fi
+
+if ! command -v "$UNCRUSTIFY" > /dev/null ; then
+    printf "Error: uncrustify executable not found.\n"
+    printf "Set the correct path in $CONFIG.\n"
+    exit 1
+fi
+
+# create a filename to store our generated patch
+prefix="pre-commit-uncrustify"
+suffix="$(date +%C%y-%m-%d_%Hh%Mm%Ss)"
+patch="/tmp/$prefix-$suffix.patch"
+
+# clean up any older uncrustify patches
+$DELETE_OLD_PATCHES && rm -f /tmp/$prefix*.patch
+
+# create one patch containing all changes to the files
+# sed to remove quotes around the filename, if inserted by the system
+# (done sometimes, if the filename contains special characters, like the quote itself)
+git diff-index --cached --diff-filter=ACMR --name-only $against -- | \
+sed -e 's/^"\(.*\)"$/\1/' | \
+while read file
+do
+    # ignore file if we do check for file extensions and the file
+    # does not match any of the extensions specified in $FILE_EXTS
+    if $PARSE_EXTS && ! matches_extension "$file"; then
+        continue;
+    fi
+
+    # escape special characters in the source filename:
+    # - '\': backslash needs to be escaped
+    # - '*': used as matching string => '*' would mean expansion
+    #        (curiously, '?' must not be escaped)
+    # - '[': used as matching string => '[' would mean start of set
+    # - '|': used as sed split char instead of '/', so it needs to be escaped
+    #        in the filename
+    # printf %s particularly important if the filename contains the % character
+    file_escaped_source=$(printf "%s" "$file" | sed -e 's/[\*[|]/\\&/g')
+
+    # escape special characters in the target filename:
+    # phase 1 (characters escaped in the output diff):
+    #     - '\': backslash needs to be escaped in the output diff
+    #     - '"': quote needs to be escaped in the output diff if present inside
+    #            of the filename, as it used to bracket the entire filename part
+    # phase 2 (characters escaped in the match replacement):
+    #     - '\': backslash needs to be escaped again for sed itself
+    #            (i.e. double escaping after phase 1)
+    #     - '&': would expand to matched string
+    #     - '|': used as sed split char instead of '/'
+    # printf %s particularly important if the filename contains the % character
+    file_escaped_target=$(printf "%s" "$file" | sed -e 's/[\"]/\\&/g' -e 's/[\&|]/\\&/g')
+
+    # Uncrustify detects the language automatically if it is not specified
+    language_option=""
+    if [ "$SOURCE_LANGUAGE" != "AUTO" ] ; then
+        language_option="-l $SOURCE_LANGUAGE"
+    fi
+
+    # uncrustify our sourcefile, create a patch with diff and append it to our $patch
+    # The sed call is necessary to transform the patch from
+    #    --- $file timestamp
+    #    +++ - timestamp
+    # to both lines working on the same file and having a a/ and b/ prefix.
+    # Else it can not be applied with 'git apply'.
+    "$UNCRUSTIFY" -c "$UNCRUST_CONFIG" -f "$file" $language_option | \
+        diff -u -- "$file" - | \
+        sed -e "1s|--- $file_escaped_source|--- \"a/$file_escaped_target\"|" -e "2s|+++ -|+++ \"b/$file_escaped_target\"|" >> "$patch"
+done
+
+# if no patch has been generated all is ok, clean up the file stub and exit
+if [ ! -s "$patch" ] ; then
+    printf "Files in this commit comply with the uncrustify rules.\n"
+    rm -f "$patch"
+    exit 0
+fi
+
+# a patch has been created, notify the user and exit
+printf "\nThe following differences were found between the code to commit "
+printf "and the uncrustify rules:\n\n"
+cat "$patch"
+
+printf "\nYou can apply these changes with:\n git apply $patch\n"
+printf "(may need to be called from the root directory of your repository)\n"
+printf "Aborting commit. Apply changes and commit again or skip checking with"
+printf " --no-verify (not recommended).\n"
+
+exit 1

pre-commit-uncrustify.cfg

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+# Example configuration for pre-commit-uncrustify.
+# git pre-commit hook that runs an Uncrustify stylecheck.
+#
+# Instructions:
+#   Copy as pre-commit-uncrustify.cfg and place in same directory as
+#   pre-commit-uncrustify.
+#
+# This file is part of a set of unofficial pre-commit hooks available
+# at github.
+# Link:    https://github.com/ddddavidmartin/Pre-commit-hooks
+# Contact: David Martin, ddddavidmartin@fastmail.com
+
+##################################################################
+# CONFIGURATION
+# set uncrustify path or executable
+# UNCRUSTIFY="/usr/bin/uncrustify"
+UNCRUSTIFY="uncrustify"
+
+# set uncrustify config location
+# UNCRUST_CONFIG="/home/user/.config/uncrustify.cfg"
+UNCRUST_CONFIG="$REPO/cmake/etc/uncrustify/default.cfg"
+
+# the source language: C, CPP, D, CS, JAVA, PAWN, VALA, OC, OC+
+# use AUTO to let Uncrustify decide which language a given file uses.
+# the detected language is printed to the console when Uncrustify is called.
+# override if the automatic detection seems off.
+# SOURCE_LANGUAGE="AUTO"
+SOURCE_LANGUAGE="AUTO"
+
+# remove any older patches from previous commits. Set to true or false.
+# DELETE_OLD_PATCHES=false
+DELETE_OLD_PATCHES=true
+
+# only parse files with the extensions in FILE_EXTS. Set to true or false.
+# if false every changed file in the commit will be parsed with Uncrustify.
+# if true only files matching one of the extensions are parsed with Uncrustify.
+# PARSE_EXTS=true
+PARSE_EXTS=true
+
+# file types to parse. Only effective when PARSE_EXTS is true.
+# FILE_EXTS=".c .h .cpp .hpp"
+FILE_EXTS=".c .h .cpp .hpp"

pre-commit.cfg

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+# Example configuration for pre-commit.
+# Git pre-commit hook that runs multiple hooks specified in $HOOKS.
+#
+# Instructions:
+#   Copy as pre-commit.cfg and place in same directory as pre-commit.
+#
+# This file is part of a set of unofficial pre-commit hooks available
+# at github.
+# Link:    https://github.com/ddddavidmartin/Pre-commit-hooks
+# Contact: David Martin, ddddavidmartin@fastmail.com
+
+###########################################################
+# CONFIGURATION:
+# pre-commit hooks to be executed. They should be in the same .git/hooks/ folder
+# as this file. Hooks should return 0 if successful and nonzero to cancel the
+# commit. They are executed in the order in which they are listed.
+#HOOKS="pre-commit-compile pre-commit-uncrustify"
+HOOKS="pre-commit-uncrustify"