chore: release v0.3.0

Add MustParse

.github/workflows/stale.yml

@@ -0,0 +1,26 @@
+name: Close and mark stale issue
+
+on:
+  schedule:
+  - cron: '0 0 * * *'
+
+jobs:
+  stale:
+
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+      pull-requests: write
+
+    steps:
+    - uses: actions/stale@v3
+      with:
+        repo-token: ${{ secrets.GITHUB_TOKEN }}
+        stale-issue-message: 'Oops, seems like we needed more information for this issue, please comment with more details or this issue will be closed in 7 days.'
+        close-issue-message: 'This issue was closed because it is missing author input.'
+        stale-issue-label: 'kind/stale'
+        any-of-labels: 'need/author-input'
+        exempt-issue-labels: 'need/triage,need/community-input,need/maintainer-input,need/maintainers-input,need/analysis,status/blocked,status/in-progress,status/ready,status/deferred,status/inactive'
+        days-before-issue-stale: 6
+        days-before-issue-close: 7
+        enable-statistics: true

cid.go

@@ -181,6 +181,15 @@ func Parse(v interface{}) (Cid, error) {
 	}
 }
 
+// MustParse calls Parse but will panic on error.
+func MustParse(v interface{}) Cid {
+	c, err := Parse(v)
+	if err != nil {
+		panic(err)
+	}
+	return c
+}
+
 // Decode parses a Cid-encoded string and returns a Cid object.
 // For CidV1, a Cid-encoded string is primarily a multibase string:
 //
@@ -369,7 +378,13 @@ func (c Cid) Hash() mh.Multihash {
 // Bytes returns the byte representation of a Cid.
 // The output of bytes can be parsed back into a Cid
 // with Cast().
+//
+// If c.Defined() == false, it return a nil slice and may not
+// be parsable with Cast().
 func (c Cid) Bytes() []byte {
+	if !c.Defined() {
+		return nil
+	}
 	return []byte(c.str)
 }
 

version.json

@@ -1,3 +1,3 @@
 {
-  "version": "v0.2.0"
+  "version": "v0.3.0"
 }