Version compiled FW with automatic macro (#267)

* Version compiled FW with hash

Auto generates a macro to type out version info, local and github compilation now includes commit hash and timestamp in final uf2 files

* Fix local builds

makefile doesn't like the script returning the macro, directed to null for local builds as version.dtsi file accessible

bin/build.sh

@@ -3,7 +3,8 @@
 set -eu
 
 PWD=$(pwd)
-TIMESTAMP="${TIMESTAMP:-$(date -u +"%Y%m%d%H%M%S")}"
+TIMESTAMP="${TIMESTAMP:-$(date -u +"%Y%m%d%H%M")}"
+COMMIT="${COMMIT:-$(echo xxxxxx)}"
 
 # West Build (left)
 west build -s zmk/app -d build/left -b adv360_left -- -DZMK_CONFIG="${PWD}/config"
@@ -14,4 +15,4 @@ west build -s zmk/app -d build/right -b adv360_right -- -DZMK_CONFIG="${PWD}/con
 # Adv360 Right Kconfig file
 grep -vE '(^#|^$)' build/right/zephyr/.config
 # Rename zmk.uf2
-cp build/left/zephyr/zmk.uf2 "./firmware/${TIMESTAMP}-left.uf2" && cp build/right/zephyr/zmk.uf2 "./firmware/${TIMESTAMP}-right.uf2"
+cp build/left/zephyr/zmk.uf2 "./firmware/${TIMESTAMP}-${COMMIT}-left.uf2" && cp build/right/zephyr/zmk.uf2 "./firmware/${TIMESTAMP}-${COMMIT}-right.uf2"

bin/get_version.sh

@@ -0,0 +1,57 @@
+#!/bin/bash
+
+# Get the date, first 4 chars of branch name and short commit hash
+date=$(date -u +"%Y%m%d")
+branch=${1:-$(git rev-parse --abbrev-ref HEAD | cut -c1-4)}
+commit=${2:-$(git rev-parse --short HEAD)}
+
+# Function to transform characters to ZMK key behaviours
+transform_char() {
+    local char=$1
+    if [[ $char =~ [A-Za-z] ]]; then
+        echo "<&kp ${char^^}>, "
+    elif [[ $char =~ [0-9] ]]; then
+        echo "<&kp N${char}>, "
+    elif [ "$char" = "." ]; then
+        echo "<&kp DOT>, "
+    fi
+}
+
+# Iterate over the date and format characters
+formatted_date=""
+for ((i = 0; i < ${#date}; i++)); do
+    formatted_date+=$(transform_char "${date:$i:1}")
+done
+
+# Insert separator between date and branch
+formatted_date+="<&kp MINUS>, "
+
+# Iterate over the branch and format characters
+formatted_branch=""
+for ((i = 0; i < ${#branch}; i++)); do
+    formatted_branch+=$(transform_char "${branch:$i:1}")
+done
+
+# Insert separator between branch and commit hash
+formatted_branch+="<&kp MINUS>, "
+
+# Iterate over the commit hash and format characters
+formatted_commit=""
+for ((i = 0; i < ${#commit}; i++)); do
+    formatted_commit+=$(transform_char "${commit:$i:1}")
+done
+
+# Combine the formatted string, add trailing carriage return
+formatted_result="$formatted_date$formatted_branch$formatted_commit"
+formatted_result+="<&kp RET>"
+
+echo $formatted_result
+# Create new macro to define version, overwrite previous one
+
+echo '#define VERSION_MACRO' > "config/version.dtsi"
+echo 'macro_ver: macro_ver {' >> "config/version.dtsi"
+echo 'compatible = "zmk,behavior-macro";' >> "config/version.dtsi"
+echo 'label = "macro_ver";' >> "config/version.dtsi"
+echo '#binding-cells = <0>;' >> "config/version.dtsi"
+echo "bindings = $formatted_result;" >> "config/version.dtsi"
+echo '};' >> "config/version.dtsi"