feat(dashmate): default-on the BIP158 compact-filter index across all presets

packages/dashmate/configs/defaults/getBaseConfigFactory.js

@@ -155,6 +155,13 @@ export default function getBaseConfigFactory() {
           },
         },
         indexes: [],
+        // BIP158 cfilter index + NODE_COMPACT_FILTERS service bit.
+        // Default-on across every preset so dashmate-managed nodes
+        // are BIP157 SPV-friendly out of the box. Operators who
+        // can't spare the cfilter index disk overhead (~10% of
+        // chain size on mainnet) can flip this off via
+        // `dashmate config set core.compactFilters false`.
+        compactFilters: true,
       },
       platform: {
         quorumList: {

packages/dashmate/configs/defaults/getLocalConfigFactory.js

@@ -36,6 +36,14 @@ export default function getLocalConfigFactory(getBaseConfig) {
         zmq: {
           port: 49998,
         },
+        // Mirrors the `core.compactFilters: true` set on the base
+        // config; restated explicitly here because the local
+        // preset is the canonical surface where dev BIP157 SPV
+        // clients (e.g. the swift-sdk iOS example app pointed at
+        // `local_seed`) need cfilter sync to work, and we want
+        // that requirement to survive any future flip of the base
+        // default.
+        compactFilters: true,
       },
       dashmate: {
         helper: {

packages/dashmate/configs/getConfigFileMigrationsFactory.js

@@ -1413,6 +1413,20 @@ export default function getConfigFileMigrationsFactory(homeDir, defaultConfigs)
             const isLocal = options.network === NETWORK_LOCAL || name === 'local';
             const isTestnet = options.network === NETWORK_TESTNET || name === 'testnet';
 
+            // Flip `core.compactFilters` to true for every config —
+            // pre-3.1.0 configs predate the field entirely (template
+            // emitted nothing, dashcore left the cfilter index off),
+            // so a missing-or-false value here always means
+            // "inherited the old implicit-off default" rather than
+            // "user explicitly opted out". The base config now
+            // ships with this flag on; this backfill brings every
+            // already-set-up cluster up to that line so the iOS
+            // BIP157 SPV flow against `local_seed` (and any other
+            // dashmate node) works without manual editing.
+            if (options.core) {
+              options.core.compactFilters = true;
+            }
+
             if (options.platform?.drive?.tenderdash?.docker
               && defaultConfig.has('platform.drive.tenderdash.docker.image')) {
               options.platform.drive.tenderdash.docker.image = defaultConfig

packages/dashmate/src/config/configJsonSchema.js

@@ -487,6 +487,14 @@ export default {
           description: 'List of core indexes to enable. `platform.enable`, '
             + ' `core.masternode.enable`, and `core.insight.enabled` add indexes dynamically',
         },
+        compactFilters: {
+          type: 'boolean',
+          description: 'Build the BIP158 cfilter index and advertise '
+            + 'NODE_COMPACT_FILTERS to peers, so BIP157 SPV clients can sync '
+            + 'filter headers + filters from this node. Defaults to true on '
+            + 'every preset; flip to false to skip the cfilter index '
+            + '(~10% chain-size disk overhead on mainnet).',
+        },
       },
       required: ['docker', 'p2p', 'rpc', 'zmq', 'spork', 'masternode', 'miner', 'devnet', 'log',
         'indexes', 'insight'],

packages/dashmate/templates/core/dash.conf.dot

@@ -69,6 +69,17 @@ spentindex=1
 {{~}}
 {{?}}
 
+# BIP157/158 compact block filters. Building the cfilter index plus
+# advertising NODE_COMPACT_FILTERS lets BIP157 SPV clients sync
+# headers + filters from this node. Off by default (mainnet/testnet
+# usage doesn't justify the disk + CPU overhead); enabled on the
+# `local` preset where the chain is tiny and the iOS dev flow needs
+# filter sync against dashmate's `local_seed` to test the wallet.
+{{? it.core.compactFilters }}
+blockfilterindex=basic
+peerblockfilters=1
+{{?}}
+
 # ZeroMQ notifications
 zmqpubrawtx=tcp://0.0.0.0:{{=it.core.zmq.port}}
 zmqpubrawtxlock=tcp://0.0.0.0:{{=it.core.zmq.port}}