Add changelog generation script

scripts/changelog-template.hbs

@@ -0,0 +1,32 @@
+{{#each releases}}
+  {{#if href}}
+    ## [{{title}}]({{href}}){{#if tag}} - {{isoDate}}{{/if}}
+  {{else}}
+    ## {{title}}{{#if tag}} - {{isoDate}}{{/if}}
+  {{/if}}
+
+  {{#if summary}}
+    {{summary}}
+  {{/if}}
+
+  {{#if merges}}
+    ### Merged
+
+    {{#each merges}}
+      - {{#if commit.breaking}}**Breaking change:** {{/if}}{{message}} {{#if href}}[`#{{id}}`]({{href}}){{/if}}
+    {{/each}}
+  {{/if}}
+
+  {{#if fixes}}
+    ### Fixed
+
+    {{#each fixes}}
+      - {{#if commit.breaking}}**Breaking change:** {{/if}}{{commit.subject}}{{#each fixes}} {{#if href}}[`#{{id}}`]({{href}}){{/if}}{{/each}}
+    {{/each}}
+  {{/if}}
+
+  {{#commit-list commits heading='### Commits'}}
+    - {{#if breaking}}**Breaking change:** {{/if}}{{subject}} {{#if href}}[`{{shorthash}}`]({{href}}){{/if}}
+  {{/commit-list}}
+
+{{/each}}

scripts/changelog.sh

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+auto-changelog -t "$DIR/changelog-template.hbs" -l 999 --starting-version "$(git describe --abbrev=0)" --stdout --sort-commits date-desc --hide-credit