From 1d5cd79cd0f9fbd481f59e808907cb30534da953 Mon Sep 17 00:00:00 2001
From: Stefan Gaiselmann <stefan.gaiselmann@materna.de>
Date: Tue, 29 Jun 2021 13:30:26 +0200
Subject: [PATCH] Adjusted git hook creation (added pre-commit hook to
 chezmoi).

---
 bin/executable_git-hook                       | 11 +--
 .../git/global_hooks/pre-commit               | 82 +++++++++++++++++++
 2 files changed, 88 insertions(+), 5 deletions(-)
 create mode 100644 private_dot_config/git/global_hooks/pre-commit

diff --git a/bin/executable_git-hook b/bin/executable_git-hook
index 4e2ef10..e71c6ac 100644
--- a/bin/executable_git-hook
+++ b/bin/executable_git-hook
@@ -1,21 +1,22 @@
 #!/bin/bash
 
 root=$(git rev-parse --show-toplevel)
+preCommitFile=$HOME/.config/git/global_hooks/pre-commit
 echo "root dir: $root"
 
 echo "enabled hooks: "
-for f in $root/.git/hooks/*; do
+for f in "$root/.git/hooks"/*; do
     if [[ ${f: -7} != ".sample" ]]; then
-        echo "  $(basename $f)"
+        echo "  $(basename "$f")"
     fi
 done
 
 if [[ -L "$root/.git/hooks/pre-commit" ]]; then
     echo "pre-commit already linked"
 elif [[ -f "$root/.git/hooks/pre-commit" ]]; then
-    echo "pre-commit already exists (as regular file)"
+    echo "pre-commit already exists as regular file"
 else
-    echo "linking pre-commit $HOME/.git_hooks/pre-commit"
-    ln -s $HOME/.git_hooks/pre-commit $root/.git/hooks/pre-commit
+    echo "linking pre-commit $preCommitFile"
+    ln -s "$preCommitFile" "$root/.git/hooks/pre-commit"
 fi
 
diff --git a/private_dot_config/git/global_hooks/pre-commit b/private_dot_config/git/global_hooks/pre-commit
new file mode 100644
index 0000000..d96f8ec
--- /dev/null
+++ b/private_dot_config/git/global_hooks/pre-commit
@@ -0,0 +1,82 @@
+#!/bin/sh
+ 
+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
+ 
+checkBash() 
+{
+    local file=$1
+    echo checking for 'version' in $file
+    now=`date +'%Y-%m-%d %R'`
+    sed -i "s/^\(#.*\)version: .*/\1version: $now/" $file
+    sed -i "s/^\(#.*\)Version: .*/\1Version: $now/" $file
+    git add $file
+}
+
+# Set (Last Modified: <date>) in CHANGELOG.md
+checkChangelog()
+{
+    local file=$1
+    echo checking for 'Last Modified' in $file
+    now=`date +'%Y-%m-%d'`
+    sed -i "s/\(Last Modified: .*\)/\(Last Modified: $now\)/" $file
+    git add $file
+}
+
+checkConfiguration() 
+{
+    local file=$1
+    echo checking for '# Version:' in $file
+    now=`date +'%Y-%m-%d %R'`
+    sed -i "s/# version: .*/# version: $now/" $file
+    sed -i "s/# Version: .*/# Version: $now/" $file
+    git add $file
+}
+
+checkWhitespace()
+{
+    local file=$1
+    echo checking for whitespace errors in $file
+    local myTabs=$(grep -P '\t' $file | wc -l)
+    if [ $myTabs -eq 0 ]; then
+        echo -e "\e[32mFine zero tabs in $file\e[0m"
+    else
+        echo -e "\e[31m → Shit, multiple Tabs ($myTabs) in $file \e[0m"
+        # exit 42
+    fi
+}
+
+for FILE in `exec git diff --cached --name-only  --diff-filter=ACMR` ; do
+        # Fix them!
+        case $FILE in
+                *.java)
+                        echo checking @version in $FILE
+                        now=`date +'%d.%m.%Y %R'`
+                        sed -i "s/@version .*/@version $now/" $FILE
+                        checkWhitespace $FILE
+                        git add $FILE
+                        ;;
+                *.sh|*.profile)
+                        checkBash $FILE
+                        ;; 
+                CHANGELOG.md)
+                        checkChangelog $FILE
+                        ;;
+                */template.d/*|*.conf|*/config.properties)
+                        checkConfiguration $FILE
+                        ;;
+                *.*)
+                        echo "ignoring $FILE"
+                        ;;
+                *)
+                        checkBash $FILE
+                        ;;
+        esac
+done
+ 
+exit