Add env variable to hide Add to MM button

CHANGELOG.md

@@ -5,6 +5,7 @@
 ### Features
 
 - [#6838](https://github.com/blockscout/blockscout/pull/6838) - Disable dark mode env var
+- [#6843](https://github.com/blockscout/blockscout/pull/6843) - Add env variable to hide Add to MM button
 - [#6744](https://github.com/blockscout/blockscout/pull/6744) - API v2: smart contracts verification
 - [#6763](https://github.com/blockscout/blockscout/pull/6763) - Permanent UI dark mode
 - [#6721](https://github.com/blockscout/blockscout/pull/6721) - Implement fetching internal transactions from callTracer

apps/block_scout_web/lib/block_scout_web/templates/layout/_add_chain_to_mm.html.eex

@@ -1,13 +1,13 @@
-<input id="js-chain-id" class="d-none" value="<%= Application.get_env(:block_scout_web, :chain_id) %>" />
-<input id="js-coin-name" class="d-none" value="<%= Explorer.coin_name() %>" />
-<% sub_network = Keyword.get(Application.get_env(:block_scout_web, BlockScoutWeb.Chain), :subnetwork) %>
-<input id="js-subnetwork" class="d-none" value="<%= sub_network %>" />
-<input id="js-json-rpc" class="d-none" value="<%= Application.get_env(:block_scout_web, :json_rpc) %>" />
-<li>
-    <a 
-        class="footer-link js-btn-add-chain-to-mm btn-add-chain-to-mm in-footer"
-        style="cursor: pointer;"
-    >
-        <%= gettext("Add") <> " #{sub_network}" %>
-    </a>
-</li>
+<%= unless Application.get_env(:block_scout_web, :disable_add_to_mm_button) do %>
+    <input id="js-coin-name" class="d-none" value="<%= Explorer.coin_name() %>" />
+    <% sub_network = Keyword.get(Application.get_env(:block_scout_web, BlockScoutWeb.Chain), :subnetwork) %>
+    <input id="js-subnetwork" class="d-none" value="<%= sub_network %>" />
+    <li>
+        <a 
+            class="footer-link js-btn-add-chain-to-mm btn-add-chain-to-mm in-footer"
+            style="cursor: pointer;"
+        >
+            <%= gettext("Add") <> " #{sub_network}" %>
+        </a>
+    </li>
+<% end %>

apps/block_scout_web/lib/block_scout_web/templates/layout/app.html.eex

@@ -61,6 +61,8 @@
       <div id="permanent-dark-mode" class="d-none" ><%= Application.get_env(:block_scout_web, :permanent_dark_mode_enabled) %></div>
       <div id="permanent-light-mode" class="d-none" ><%= Application.get_env(:block_scout_web, :permanent_light_mode_enabled) %></div>
       <div id="indexer-first-block" class="d-none" ><%= Application.get_env(:indexer, :first_block) %></div>
+      <input id="js-chain-id" class="d-none" value="<%= Application.get_env(:block_scout_web, :chain_id) %>" />
+      <input id="js-json-rpc" class="d-none" value="<%= Application.get_env(:block_scout_web, :json_rpc) %>" />
       <!-- -->
       <% show_maintenance_alert = Application.get_env(:block_scout_web, BlockScoutWeb.Chain)[:show_maintenance_alert] %>
       <%= if show_maintenance_alert do %>

apps/block_scout_web/priv/gettext/default.pot

@@ -81,7 +81,7 @@ msgstr ""
 msgid ") may be added for each contract. Click the Add Library button to add an additional one."
 msgstr ""
 
-#: lib/block_scout_web/templates/layout/app.html.eex:81
+#: lib/block_scout_web/templates/layout/app.html.eex:83
 #, elixir-autogen, elixir-format
 msgid "- We're indexing this chain right now. Some of the counts may be inaccurate."
 msgstr ""
@@ -176,7 +176,7 @@ msgstr ""
 
 #: lib/block_scout_web/templates/account/api_key/form.html.eex:7
 #: lib/block_scout_web/templates/account/custom_abi/form.html.eex:8
-#: lib/block_scout_web/templates/layout/_add_chain_to_mm.html.eex:11
+#: lib/block_scout_web/templates/layout/_add_chain_to_mm.html.eex:10
 #, elixir-autogen, elixir-format
 msgid "Add"
 msgstr ""

apps/block_scout_web/priv/gettext/en/LC_MESSAGES/default.po

@@ -81,7 +81,7 @@ msgstr ""
 msgid ") may be added for each contract. Click the Add Library button to add an additional one."
 msgstr ""
 
-#: lib/block_scout_web/templates/layout/app.html.eex:81
+#: lib/block_scout_web/templates/layout/app.html.eex:83
 #, elixir-autogen, elixir-format
 msgid "- We're indexing this chain right now. Some of the counts may be inaccurate."
 msgstr ""
@@ -176,7 +176,7 @@ msgstr ""
 
 #: lib/block_scout_web/templates/account/api_key/form.html.eex:7
 #: lib/block_scout_web/templates/account/custom_abi/form.html.eex:8
-#: lib/block_scout_web/templates/layout/_add_chain_to_mm.html.eex:11
+#: lib/block_scout_web/templates/layout/_add_chain_to_mm.html.eex:10
 #, elixir-autogen, elixir-format
 msgid "Add"
 msgstr ""

config/runtime.exs

@@ -100,6 +100,7 @@ config :block_scout_web,
   new_tags: System.get_env("NEW_TAGS"),
   chain_id: System.get_env("CHAIN_ID"),
   json_rpc: System.get_env("JSON_RPC"),
+  disable_add_to_mm_button: System.get_env("DISABLE_ADD_TO_MM_BUTTON", "false") == "true",
   verification_max_libraries: verification_max_libraries,
   permanent_dark_mode_enabled: System.get_env("PERMANENT_DARK_MODE_ENABLED", "false") == "true",
   permanent_light_mode_enabled: System.get_env("PERMANENT_LIGHT_MODE_ENABLED", "false") == "true"