added zet

.local/bin/zet

@@ -0,0 +1,80 @@
+#!/bin/bash
+
+if ! [ -x "$(command -v git)" ]; then
+    printf "please install git!\n"
+    exit 1
+fi
+
+if ! [ -d "$NOTE_DIR" ]; then
+    printf "please setup notes using \$NOTE_DIR!\n"
+    exit 1
+fi
+
+function got_to_notes {
+    log "changing to note dir: $NOTE_DIR"
+    cd "$NOTE_DIR" || (echo "can't find notebook dir" && exit 1)
+}
+
+function go_back {
+    log "returning user"
+    cd - || (echo "failed to return" || exit 1)
+}
+
+function sync {
+    log "syncing"
+    save
+    pull
+    push
+}
+
+function pull {
+    log "pulling remote"
+    got_to_notes
+    git pull || exit 1
+    go_back
+}
+
+function push {
+    log "pushing to remote"
+    got_to_notes
+    git push
+    go_back
+}
+
+function save {
+    log "saving all changes"
+    got_to_notes
+    git add .
+    git commit -am "saving up to $(date)"
+    go_back
+}
+
+function log {
+    echo "zet::log $(log_time): $1"
+}
+
+function error {
+    echo "zet::error $(log_time): $1"
+}
+
+function log_time {
+    date -u +"%Y-%m-%dT%H:%M:%SZ"
+}
+
+function help {
+    echo "zet::help: zet sync -- save, pull, push"
+    echo "zet::help: zet pull -- pull from remote"
+    echo "zet::help: zet push -- push to remote"
+    echo "zet::help: zet save -- save all changes"
+}
+
+# Check if the function exists (bash specific)
+if declare -f "$1" > /dev/null
+then
+    # call arguments verbatim
+    "$@"
+else
+    # Show a helpful error
+    echo "'$1' is not a known option" >&2
+    exit 1
+fi