home/git: bundle homebrewn external git commands

home/programs/git/scripts/git-tcommit.sh

@@ -0,0 +1,31 @@
+set -euo pipefail
+
+HOUR_SHIFT="$1"
+shift
+
+if [[ $HOUR_SHIFT == -* ]]; then
+  HOUR_SHIFT="${HOUR_SHIFT#*-}"
+  OPERATOR="-"
+else
+  OPERATOR="+"
+fi
+
+DATE=$(date -d "now ${OPERATOR} ${HOUR_SHIFT} hours")
+
+while true; do
+  echo "Commiting with date: ${DATE} (${OPERATOR}${HOUR_SHIFT}h)"
+  read -rp "Do you want to proceed? (y/n) " yn
+
+  case $yn in
+    [yY] )
+      break;;
+    [nN] )
+      exit;;
+    * ) echo invalid response;;
+  esac
+done
+
+export GIT_COMMITTER_DATE="${DATE}"
+export GIT_AUTHOR_DATE="${DATE}"
+
+git commit "$@"