feat(cli): add chain delete cmd

api/api_full.go

@@ -75,6 +75,9 @@ type FullNode interface {
 	// blockstore and returns raw bytes.
 	ChainReadObj(context.Context, cid.Cid) ([]byte, error)
 
+	// ChainDeleteObj deletes node referenced by the given CID
+	ChainDeleteObj(context.Context, cid.Cid) error
+
 	// ChainHasObj checks if a given CID exists in the chain blockstore.
 	ChainHasObj(context.Context, cid.Cid) (bool, error)
 

api/apistruct/struct.go

@@ -85,6 +85,7 @@ type FullNodeStruct struct {
 		ChainGetParentMessages        func(context.Context, cid.Cid) ([]api.Message, error)                                                              `perm:"read"`
 		ChainGetTipSetByHeight        func(context.Context, abi.ChainEpoch, types.TipSetKey) (*types.TipSet, error)                                      `perm:"read"`
 		ChainReadObj                  func(context.Context, cid.Cid) ([]byte, error)                                                                     `perm:"read"`
+		ChainDeleteObj                func(context.Context, cid.Cid) error                                                                               `perm:"admin"`
 		ChainHasObj                   func(context.Context, cid.Cid) (bool, error)                                                                       `perm:"read"`
 		ChainStatObj                  func(context.Context, cid.Cid, cid.Cid) (api.ObjStat, error)                                                       `perm:"read"`
 		ChainSetHead                  func(context.Context, types.TipSetKey) error                                                                       `perm:"admin"`
@@ -658,6 +659,10 @@ func (c *FullNodeStruct) ChainReadObj(ctx context.Context, obj cid.Cid) ([]byte,
 	return c.Internal.ChainReadObj(ctx, obj)
 }
 
+func (c *FullNodeStruct) ChainDeleteObj(ctx context.Context, obj cid.Cid) error {
+	return c.Internal.ChainDeleteObj(ctx, obj)
+}
+
 func (c *FullNodeStruct) ChainHasObj(ctx context.Context, o cid.Cid) (bool, error) {
 	return c.Internal.ChainHasObj(ctx, o)
 }

cli/chain.go

@@ -193,6 +193,33 @@ var chainReadObjCmd = &cli.Command{
 	},
 }
 
+var chainDeleteObjCmd = &cli.Command{
+	Name:      "delete-obj",
+	Usage:     "Delete an object",
+	ArgsUsage: "[objectCid]",
+	Action: func(cctx *cli.Context) error {
+		api, closer, err := GetFullNodeAPI(cctx)
+		if err != nil {
+			return err
+		}
+		defer closer()
+		ctx := ReqContext(cctx)
+
+		c, err := cid.Decode(cctx.Args().First())
+		if err != nil {
+			return fmt.Errorf("failed to parse cid input: %s", err)
+		}
+
+		err = api.ChainDeleteObj(ctx, c)
+		if err != nil {
+			return err
+		}
+
+		fmt.Printf("Obj %s deleted\n", c.String())
+		return nil
+	},
+}
+
 var chainStatObjCmd = &cli.Command{
 	Name:      "stat-obj",
 	Usage:     "Collect size and ipld link counts for objs",

node/impl/full/chain.go

@@ -197,6 +197,10 @@ func (a *ChainAPI) ChainReadObj(ctx context.Context, obj cid.Cid) ([]byte, error
 	return blk.RawData(), nil
 }
 
+func (a *ChainAPI) ChainDeleteObj(ctx context.Context, obj cid.Cid) error {
+	return a.Chain.Blockstore().DeleteBlock(obj)
+}
+
 func (a *ChainAPI) ChainHasObj(ctx context.Context, obj cid.Cid) (bool, error) {
 	return a.Chain.Blockstore().Has(obj)
 }