chore(linux): make --report an option instead of action

This addresses code review comments.

Author: ermshiperete

docs/settings/linux/tasks.json

@@ -172,7 +172,7 @@
       "command": "./build.sh",
       "args": [
         "test",
-        "report",
+        "--report",
         "--debug",
         "--coverage",
         "--no-integration"
@@ -181,7 +181,7 @@
         "cwd": "${workspaceFolder}/linux/ibus-keyman/",
       },
       "group": "build",
-      "detail": "create unit test coverage"
+      "detail": "run tests and create unit test coverage report"
     },
     {
       "type": "shell",

linux/ibus-keyman/build.sh

@@ -19,9 +19,9 @@ builder_describe \
   "test" \
   "install                   install artifacts" \
   "uninstall                 uninstall artifacts" \
-  "report                    create coverage report" \
   "@/core:arch" \
   "--no-integration          don't run integration tests" \
+  "--report                  create coverage report" \
   "--coverage                capture test coverage"
 
 builder_parse "$@"
@@ -76,6 +76,10 @@ if builder_start_action test; then
   else
     meson test --print-errorlogs $builder_verbose
   fi
+  if builder_has_option --coverage; then
+    # Note: requires lcov > 1.16 to properly work (see https://github.com/mesonbuild/meson/issues/6747)
+    ninja coverage-html
+  fi
   builder_finish_action success test
 fi
 
@@ -90,10 +94,3 @@ if builder_start_action uninstall; then
   ninja uninstall
   builder_finish_action success uninstall
 fi
-
-if builder_start_action report; then
-  cd "$THIS_SCRIPT_PATH/$MESON_PATH"
-  # Note: requires lcov > 1.16 to properly work (see https://github.com/mesonbuild/meson/issues/6747)
-  ninja coverage-html
-  builder_finish_action success report
-fi