From a20c19507d260110315af920ad63512c2eedbc5a Mon Sep 17 00:00:00 2001
From: Alexander Myasoedov <msoedov@gmail.com>
Date: Sat, 15 Feb 2025 13:35:36 +0200
Subject: [PATCH] feat(add changelog sh):

---
 changelog.sh | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 changelog.sh

diff --git a/changelog.sh b/changelog.sh
new file mode 100644
index 0000000..8dc63fa
--- /dev/null
+++ b/changelog.sh
@@ -0,0 +1,25 @@
+#!/bin/bash
+
+# Get the last tag
+LAST_TAG=$(git describe --tags --abbrev=0 2>/dev/null)
+
+if [ -z "$LAST_TAG" ]; then
+    echo "No tags found. Retrieving all commits."
+    LOG_RANGE="HEAD"
+else
+    echo "Generating changelog from last tag: $LAST_TAG"
+    LOG_RANGE="$LAST_TAG..HEAD"
+fi
+
+# Retrieve commit messages excluding merge commits and format them with author names and stripped email domain as nickname
+CHANGELOG=$(git log --pretty=format:"- %s by %an, @%ae)" --no-merges $LOG_RANGE | sed -E 's/@([^@]+)@([^@]+)\..*/@\1/')
+
+# Output the changelog
+if [ -n "$CHANGELOG" ]; then
+    echo "# Changelog"
+    echo "
+## Changes since $LAST_TAG"
+    echo "$CHANGELOG"
+else
+    echo "No new commits since last tag."
+fi