misc: added changelog.sh script

changelog.sh

@@ -0,0 +1,60 @@
+#!/bin/bash
+
+NEW=()
+FIXES=()
+MISC=()
+
+echo "@ Fetching remote tags ..."
+
+git fetch --tags > /dev/null
+
+CURTAG=$(git describe --tags --abbrev=0)
+OUTPUT=$(git log $CURTAG..HEAD --oneline)
+# https://stackoverflow.com/questions/19771965/split-bash-string-by-newline-characters
+IFS=$'\n' LINES=($OUTPUT)
+
+for LINE in "${LINES[@]}"; do
+    LINE=$(echo "$LINE" | sed -E "s/^[[:xdigit:]]+\s+//")
+    if [[ $LINE = *"new:"* ]]; then
+        NEW+=("$LINE")
+    elif [[ $LINE = *"fix:"* ]]; then
+        FIXES+=("$LINE") 
+    elif [[ $LINE != *"i did not bother commenting"* ]]; then 
+        echo "MISC LINE =$LINE"
+        MISC+=("$LINE")
+    fi
+done
+
+echo
+echo "Changelog"
+echo "==="
+echo
+
+if [ -n "$NEW" ]; then
+    echo "**New Features**"
+    echo
+    for l in "${NEW[@]}"
+    do
+        echo "* $l"
+    done
+fi
+
+if [ -n "$FIXES" ]; then
+    echo "**Fixes**"
+    echo
+    for l in "${FIXES[@]}"
+    do
+        echo "* $l"
+    done
+fi
+
+if [ -n "$MISC" ]; then
+    echo "**Misc**"
+    echo
+    for l in "${MISC[@]}"
+    do
+        echo "* $l"
+    done
+fi
+
+echo