refactor: legacy-cid-v1 → test-cid-v1

keeping old name to minimize noise, just document pre-existing defaults

Author: lidel

config/profile.go

@@ -279,7 +279,7 @@ fetching may be degraded.
 			return nil
 		},
 	},
-	"legacy-cid-v1": {
+	"test-cid-v1": {
 		Description: `Makes UnixFS import produce legacy CIDv1 with the same suboptimal settings as legacy-cid-v0, but with 1MiB file chunk, CIDv1 and raw leaves. Use only if legacy behavior is required.`,
 		Transform: func(c *Config) error {
 			c.Import.CidVersion = *NewOptionalInteger(1)

docs/changelogs/v0.35.md

@@ -70,7 +70,7 @@ You can set default values for these options using the following configuration s
 ##### Updated Configuration Profiles
 
 The release updated configuration [profiles](https://github.com/ipfs/kubo/blob/master/docs/config.md#profile) to incorporate these new `Import.*` settings:
-- Renamed Profile: `test-cid-v1` is now `legacy-cid-v1`. This profile locks in current defaults, ensuring stability for users who prefer unchanged behavior in future releases.
+- Updated Profile: `test-cid-v1` now includes current defaults as explicit `Import.UnixFSFileMaxLinks=174`, `Import.UnixFSDirectoryMaxLinks=0`, `Import.UnixFSHAMTDirectoryMaxFanout=256` and `Import.UnixFSHAMTDirectorySizeThreshold=256KiB`
 - New Profile: `test-cid-v1-2025-v35` adopts modern defaults, increasing the maximum file DAG width from 174 to 1024 and raising the HAMT directory sharding threshold from 256KiB to 1MiB, aligning with 1MiB file chunks.
   - Benefits: Larger blocks (256KiB to 1MiB) enable up to 4x faster Amino DHT announcements and lookups.
   - Status: This profile is a candidate for future default settings.

test/cli/add_test.go

@@ -226,20 +226,20 @@ func TestAdd(t *testing.T) {
 		})
 	})
 
-	t.Run("ipfs init --profile=legacy-cid-v1 produces CIDv1 with raw leaves", func(t *testing.T) {
+	t.Run("ipfs init --profile=test-cid-v1 produces CIDv1 with raw leaves", func(t *testing.T) {
 		t.Parallel()
-		node := harness.NewT(t).NewNode().Init("--profile=legacy-cid-v1")
+		node := harness.NewT(t).NewNode().Init("--profile=test-cid-v1")
 		node.StartDaemon()
 		defer node.StopDaemon()
 
 		cidStr := node.IPFSAddStr(shortString)
 		require.Equal(t, shortStringCidV1, cidStr) // raw leaf
 	})
 
-	t.Run("ipfs init --profile=legacy-cid-v1 applies UnixFSChunker=size-1048576", func(t *testing.T) {
+	t.Run("ipfs init --profile=test-cid-v1 applies UnixFSChunker=size-1048576", func(t *testing.T) {
 		t.Parallel()
 		seed := "v1-seed"
-		profile := "--profile=legacy-cid-v1"
+		profile := "--profile=test-cid-v1"
 
 		t.Run("under UnixFSFileMaxLinks=174", func(t *testing.T) {
 			t.Parallel()
@@ -271,10 +271,10 @@ func TestAdd(t *testing.T) {
 		})
 	})
 
-	t.Run("ipfs init --profile=legacy-cid-v1 applies UnixFSHAMTDirectoryMaxFanout=256 and UnixFSHAMTDirectorySizeThreshold=256KiB", func(t *testing.T) {
+	t.Run("ipfs init --profile=test-cid-v1 applies UnixFSHAMTDirectoryMaxFanout=256 and UnixFSHAMTDirectorySizeThreshold=256KiB", func(t *testing.T) {
 		t.Parallel()
-		seed := "hamt-legacy-cid-v1"
-		profile := "--profile=legacy-cid-v1"
+		seed := "hamt-cid-v1"
+		profile := "--profile=test-cid-v1"
 
 		t.Run("under UnixFSHAMTDirectorySizeThreshold=256KiB", func(t *testing.T) {
 			t.Parallel()
@@ -313,7 +313,7 @@ func TestAdd(t *testing.T) {
 			// Confirm this time, the number of links is less than UnixFSHAMTDirectoryMaxFanout=256
 			root, err := node.InspectPBNode(cidStr)
 			assert.NoError(t, err)
-			require.Equal(t, 245, len(root.Links))
+			require.Equal(t, 252, len(root.Links))
 		})
 	})
 
@@ -354,7 +354,7 @@ func TestAdd(t *testing.T) {
 
 	t.Run("ipfs init --profile=test-cid-v1-2025-v35 applies UnixFSHAMTDirectoryMaxFanout=256 and UnixFSHAMTDirectorySizeThreshold=1MiB", func(t *testing.T) {
 		t.Parallel()
-		seed := "hamt-legacy-cid-v1"
+		seed := "hamt-cid-v1"
 		profile := "--profile=test-cid-v1-2025-v35"
 
 		t.Run("under UnixFSHAMTDirectorySizeThreshold=1MiB", func(t *testing.T) {