prevent initializing glog twice (#745)

.github/workflows/linux-build.yml

@@ -9,7 +9,7 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     strategy:
       fail-fast: false
       matrix:

README.md

@@ -41,7 +41,7 @@ Build dependencies
   - compiler with C++17 support
   - cmake>=3.12
   - libboost>=1.74
-  - libglog (optional)
+  - libglog>=0.7 (optional)
   - libleveldb
   - libmarisa
   - libopencc>=1.0.2

src/rime/setup.cc

@@ -84,7 +84,11 @@ RIME_API void SetupLogging(const char* app_name,
   // Do not allow other users to read/write log files created by current
   // process.
   FLAGS_logfile_mode = 0600;
-  google::InitGoogleLogging(app_name);
+  if (google::IsGoogleLoggingInitialized()) {
+    LOG(WARNING) << "Glog is already initialized.";
+  } else {
+    google::InitGoogleLogging(app_name);
+  }
 #endif  // RIME_ENABLE_LOGGING
 }