cmFindPackage: fix over-reporting

Both track when a `_DIR` variable is already defined and suppress
implicit event reporting when a mode that has no reliable method for
such detection.

Source/cmFindPackageCommand.cxx

@@ -614,15 +614,13 @@ void cmFindPackageCommand::InheritOptions(cmFindPackageCommand* other)
 
 bool cmFindPackageCommand::IsFound() const
 {
-  return !this->FileFound.empty();
+  return this->InitialState == FindState::Found;
 }
 
 bool cmFindPackageCommand::IsDefined() const
 {
-  // A `find_package` always needs to be rerun because it could create
-  // variables, provide commands, or targets. Therefore it is never
-  // "predefined" whether it is found or not.
-  return false;
+  return this->InitialState == FindState::Found ||
+    this->InitialState == FindState::NotFound;
 }
 
 bool cmFindPackageCommand::InitialPass(std::vector<std::string> const& args)
@@ -933,6 +931,41 @@ bool cmFindPackageCommand::InitialPass(std::vector<std::string> const& args)
     return false;
   }
 
+  bool canBeIrrelevant = true;
+  if (this->UseConfigFiles || this->UseCpsFiles) {
+    canBeIrrelevant = false;
+    if (cmValue v = this->Makefile->GetState()->GetCacheEntryValue(
+          cmStrCat(this->Name, "_DIR"))) {
+      if (!v.IsNOTFOUND()) {
+        this->InitialState = FindState::Found;
+      } else {
+        this->InitialState = FindState::NotFound;
+      }
+    }
+  }
+
+  if (this->UseFindModules &&
+      (this->InitialState == FindState::Undefined ||
+       this->InitialState == FindState::NotFound)) {
+    // There are no definitive cache variables to know if a given `Find` module
+    // has been searched for or not. However, if we have a `_FOUND` variable,
+    // use that as an indication of a previous search.
+    if (cmValue v =
+          this->Makefile->GetDefinition(cmStrCat(this->Name, "_FOUND"))) {
+      if (v.IsOn()) {
+        this->InitialState = FindState::Found;
+      } else {
+        this->InitialState = FindState::NotFound;
+      }
+    }
+  }
+
+  // If there is no signaling variable and there's no reason to expect a cache
+  // variable, mark the initial state as "irrelevant".
+  if (this->InitialState == FindState::Undefined && canBeIrrelevant) {
+    this->InitialState = FindState::Irrelevant;
+  }
+
   // Ignore EXACT with no version.
   if (this->VersionComplete.empty() && this->VersionExact) {
     this->VersionExact = false;
@@ -3477,6 +3510,19 @@ void cmFindPackageDebugState::FailedAtImpl(std::string const& path,
   (void)regexName;
 }
 
+bool cmFindPackageDebugState::ShouldImplicitlyLogEvents() const
+{
+  auto const* fpc = this->FindPackageCommand;
+  bool const canUsePackage = fpc->UseConfigFiles || fpc->UseCpsFiles;
+  return canUsePackage &&
+    fpc->FileFoundMode != cmFindPackageCommand::FoundPackageMode::Module &&
+    std::any_of(fpc->ConsideredPaths.begin(), fpc->ConsideredPaths.end(),
+                [](cmFindPackageCommand::ConsideredPath const& cp) {
+                  return cp.Mode >
+                    cmFindPackageCommand::FoundPackageMode::Module;
+                });
+}
+
 void cmFindPackageDebugState::WriteDebug() const
 {
 }
@@ -3677,7 +3723,7 @@ void cmFindPackageDebugState::WriteEvent(cmConfigureLog& log,
     log.EndObject();
   }
   // TODO: Add provider information (see #26925)
-  if (fpc->IsFound()) {
+  if (!fpc->FileFound.empty()) {
     log.BeginObject("found"_s);
     log.WriteValue("path"_s, fpc->FileFound);
     log.WriteValue("mode"_s, found_mode(fpc->FileFoundMode));

Source/cmFindPackageCommand.h

@@ -184,6 +184,7 @@ private:
   {
     None,
     Module,
+    // Do not implicitly log for prior package types.
     Config,
     Cps,
     Provider,
@@ -365,6 +366,15 @@ private:
 
   friend struct std::hash<ConfigFileInfo>;
   friend class cmFindPackageDebugState;
+
+  enum class FindState
+  {
+    Undefined,
+    Irrelevant,
+    Found,
+    NotFound,
+  };
+  FindState InitialState = FindState::Undefined;
 };
 
 namespace std {
@@ -395,6 +405,7 @@ public:
 private:
   void FoundAtImpl(std::string const& path, std::string regexName) override;
   void FailedAtImpl(std::string const& path, std::string regexName) override;
+  bool ShouldImplicitlyLogEvents() const override;
 
   void WriteDebug() const override;
 #ifndef CMAKE_BOOTSTRAP

Tests/RunCMake/find_package/ConfigureLogTransitionsConfig-config.txt

@@ -0,0 +1,236 @@
+^
+---
+events:(
+  -
+    kind: "find-v1"(
+    [^
+]*)+|
++  -
+    kind: "message-v1"
+    backtrace:(
+      - "[^"]+")+
+    message: \|(
++      [^
+]*)*)*
+  -
+    kind: "message-v1"
+    backtrace:
+      - "ConfigureLogTransitionsConfig.cmake:[0-9]+ \(message\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    message: |
+      NotDefined -> NotFound
+  -
+    kind: "find_package-v1"
+    backtrace:
+      - "ConfigureLogTransitionsConfig.cmake:[0-9]+ \(find_package\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    name: "ViaConfig"
+    configs:
+      -
+        filename: "ViaConfigConfig.cmake"
+        kind: "cmake"
+      -
+        filename: "viaconfig-config.cmake"
+        kind: "cmake"
+    version_request:
+      exact: false
+    settings:
+      required: "optional"
+      quiet: false
+      global: false
+      policy_scope: true
+      bypass_provider: false
+      names:
+        - "ViaConfig"
+      path_suffixes:
+        - ""
+      paths:
+        CMAKE_FIND_USE_CMAKE_PATH: true
+        CMAKE_FIND_USE_CMAKE_ENVIRONMENT_PATH: true
+        CMAKE_FIND_USE_SYSTEM_ENVIRONMENT_PATH: true
+        CMAKE_FIND_USE_CMAKE_SYSTEM_PATH: true
+        CMAKE_FIND_USE_INSTALL_PREFIX: true
+        CMAKE_FIND_USE_PACKAGE_ROOT_PATH: true
+        CMAKE_FIND_USE_CMAKE_PACKAGE_REGISTRY: true
+        CMAKE_FIND_USE_SYSTEM_PACKAGE_REGISTRY: true
+        CMAKE_FIND_ROOT_PATH_MODE: "BOTH"
+    candidates:
+      -
+        path: "[^"]*/Tests/RunCMake/find_package/ConfigureLogTransitionsConfig-build/CMakeFiles/pkgRedirects/ViaConfigConfig.cmake"
+        mode: "config"
+        reason: "no_exist"
+      -
+        path: "[^"]*/Tests/RunCMake/find_package/ConfigureLogTransitionsConfig-build/CMakeFiles/pkgRedirects/viaconfig-config.cmake"
+        mode: "config"
+        reason: "no_exist"(
+      -
+        path: "[^"]*/(viaconfig-config|ViaConfigConfig).cmake"
+        mode: "config"
+        reason: "no_exist")*
+    found: null
+    search_context:(
+      [^
+]+)+
+  -
+    kind: "message-v1"
+    backtrace:
+      - "ConfigureLogTransitionsConfig.cmake:[0-9]+ \(message\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    message: |
+      NotFound -> NotFound
+  -
+    kind: "message-v1"
+    backtrace:
+      - "ConfigureLogTransitionsConfig.cmake:[0-9]+ \(message\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    message: \|
+      NotFound -> Found
+  -
+    kind: "find_package-v1"
+    backtrace:
+      - "ConfigureLogTransitionsConfig.cmake:[0-9]+ \(find_package\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    name: "ViaConfig"
+    configs:
+      -
+        filename: "ViaConfigConfig.cmake"
+        kind: "cmake"
+      -
+        filename: "viaconfig-config.cmake"
+        kind: "cmake"
+    version_request:
+      exact: false
+    settings:
+      required: "optional"
+      quiet: false
+      global: false
+      policy_scope: true
+      bypass_provider: false
+      names:
+        - "ViaConfig"
+      path_suffixes:
+        - ""
+      paths:
+        CMAKE_FIND_USE_CMAKE_PATH: true
+        CMAKE_FIND_USE_CMAKE_ENVIRONMENT_PATH: true
+        CMAKE_FIND_USE_SYSTEM_ENVIRONMENT_PATH: true
+        CMAKE_FIND_USE_CMAKE_SYSTEM_PATH: true
+        CMAKE_FIND_USE_INSTALL_PREFIX: true
+        CMAKE_FIND_USE_PACKAGE_ROOT_PATH: true
+        CMAKE_FIND_USE_CMAKE_PACKAGE_REGISTRY: true
+        CMAKE_FIND_USE_SYSTEM_PACKAGE_REGISTRY: true
+        CMAKE_FIND_ROOT_PATH_MODE: "BOTH"
+    candidates:
+      -
+        path: "[^"]*/Tests/RunCMake/find_package/ConfigureLogTransitionsConfig-build/CMakeFiles/pkgRedirects/ViaConfigConfig.cmake"
+        mode: "config"
+        reason: "no_exist"
+      -
+        path: "[^"]*/Tests/RunCMake/find_package/ConfigureLogTransitionsConfig-build/CMakeFiles/pkgRedirects/viaconfig-config.cmake"
+        mode: "config"
+        reason: "no_exist"
+      -
+        path: "[^"]*/Tests/RunCMake/find_package/ConfigureLog/ViaConfigConfig.cmake"
+        mode: "config"
+        reason: "no_exist"
+      -
+        path: "[^"]*/Tests/RunCMake/find_package/ConfigureLog/viaconfig-config.cmake"
+        mode: "config"
+        reason: "no_exist"
+      -
+        path: "[^"]*/Tests/RunCMake/find_package/ConfigureLog/cmake/ViaConfigConfig.cmake"
+        mode: "config"
+        reason: "no_exist"
+      -
+        path: "[^"]*/Tests/RunCMake/find_package/ConfigureLog/cmake/viaconfig-config.cmake"
+        mode: "config"
+        reason: "no_exist"
+    found:
+      path: "[^"]*/Tests/RunCMake/find_package/ConfigureLog/lib/cmake/ViaConfig/ViaConfigConfig.cmake"
+      mode: "config"
+      version: "1\.0"
+    search_context:(
+      [^
+]*)+
+  -
+    kind: "message-v1"
+    backtrace:
+      - "ConfigureLogTransitionsConfig.cmake:[0-9]+ \(message\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    message: \|
+      Found -> Found
+  -
+    kind: "message-v1"
+    backtrace:
+      - "ConfigureLogTransitionsConfig.cmake:[0-9]+ \(message\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    message: \|
+      Found -> NotFound
+  -
+    kind: "find_package-v1"
+    backtrace:
+      - "ConfigureLogTransitionsConfig.cmake:[0-9]+ \(find_package\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    name: "ViaConfig"
+    configs:
+      -
+        filename: "ViaConfigConfig.cmake"
+        kind: "cmake"
+      -
+        filename: "viaconfig-config.cmake"
+        kind: "cmake"
+    version_request:
+      exact: false
+    settings:
+      required: "optional"
+      quiet: false
+      global: false
+      policy_scope: true
+      bypass_provider: false
+      names:
+        - "ViaConfig"
+      path_suffixes:
+        - ""
+      paths:
+        CMAKE_FIND_USE_CMAKE_PATH: true
+        CMAKE_FIND_USE_CMAKE_ENVIRONMENT_PATH: true
+        CMAKE_FIND_USE_SYSTEM_ENVIRONMENT_PATH: true
+        CMAKE_FIND_USE_CMAKE_SYSTEM_PATH: true
+        CMAKE_FIND_USE_INSTALL_PREFIX: true
+        CMAKE_FIND_USE_PACKAGE_ROOT_PATH: true
+        CMAKE_FIND_USE_CMAKE_PACKAGE_REGISTRY: true
+        CMAKE_FIND_USE_SYSTEM_PACKAGE_REGISTRY: true
+        CMAKE_FIND_ROOT_PATH_MODE: "BOTH"
+    candidates:
+      -
+        path: "[^"]*/Tests/RunCMake/find_package/ViaConfigConfig.cmake"
+        mode: "none\?"
+        reason: "no_exist"
+      -
+        path: "[^"]*/Tests/RunCMake/find_package/viaconfig-config.cmake"
+        mode: "none\?"
+        reason: "no_exist"
+      -
+        path: "[^"]*/Tests/RunCMake/find_package/ConfigureLogTransitionsConfig-build/CMakeFiles/pkgRedirects/ViaConfigConfig.cmake"
+        mode: "config"
+        reason: "no_exist"
+      -
+        path: "[^"]*/Tests/RunCMake/find_package/ConfigureLogTransitionsConfig-build/CMakeFiles/pkgRedirects/viaconfig-config.cmake"
+        mode: "config"
+        reason: "no_exist"(
+      -
+        path: "[^"]*/(viaconfig-config|ViaConfigConfig).cmake"
+        mode: "config"
+        reason: "no_exist")*
+    found: null
+    search_context:(
+      [^
+]+)+
+  -
+    kind: "message-v1"
+    backtrace:
+      - "ConfigureLogTransitionsConfig.cmake:[0-9]+ \(message\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    message: \|
+      END
+\.\.\.$

Tests/RunCMake/find_package/ConfigureLogTransitionsConfig-stdout.txt

@@ -0,0 +1,9 @@
+-- NotDefined -> NotFound
+-- Could NOT find ViaConfig \(missing: ViaConfig_DIR\)
+-- NotFound -> NotFound
+-- Could NOT find ViaConfig \(missing: ViaConfig_DIR\)
+-- NotFound -> Found
+-- Found -> Found
+-- Found -> NotFound
+-- Could NOT find ViaConfig \(missing: ViaConfig_DIR\)
+-- END

Tests/RunCMake/find_package/ConfigureLogTransitionsConfig.cmake

@@ -0,0 +1,43 @@
+# Stable sorting for predictable behaviors.
+set(CMAKE_FIND_PACKAGE_SORT_ORDER NAME)
+
+# Unset search variables for more predictable output.
+unset(CMAKE_FRAMEWORK_PATH)
+unset(CMAKE_APPBUNDLE_PATH)
+unset(ENV{CMAKE_PREFIX_PATH})
+unset(ENV{CMAKE_FRAMEWORK_PATH})
+unset(ENV{CMAKE_APPBUNDLE_PATH})
+
+message(STATUS "NotDefined -> NotFound")
+message(CONFIGURE_LOG "NotDefined -> NotFound")
+find_package(ViaConfig CONFIG)
+
+message(STATUS "NotFound -> NotFound")
+message(CONFIGURE_LOG "NotFound -> NotFound")
+find_package(ViaConfig CONFIG)
+
+list(INSERT CMAKE_MODULE_PATH 0
+  "${CMAKE_CURRENT_LIST_DIR}/ConfigureLog/cmake")
+list(INSERT CMAKE_PREFIX_PATH 0
+  "${CMAKE_CURRENT_LIST_DIR}/ConfigureLog")
+
+message(STATUS "NotFound -> Found")
+message(CONFIGURE_LOG "NotFound -> Found")
+find_package(ViaConfig CONFIG)
+
+message(STATUS "Found -> Found")
+message(CONFIGURE_LOG "Found -> Found")
+find_package(ViaConfig CONFIG)
+
+message(STATUS "Found -> NotFound")
+message(CONFIGURE_LOG "Found -> NotFound")
+list(REMOVE_AT CMAKE_PREFIX_PATH 0)
+list(REMOVE_AT CMAKE_MODULE_PATH 0)
+set_property(CACHE ViaConfig_DIR
+  PROPERTY
+    VALUE "${CMAKE_CURRENT_SOURCE_DIR}")
+
+find_package(ViaConfig CONFIG)
+
+message(STATUS "END")
+message(CONFIGURE_LOG "END")

Tests/RunCMake/find_package/ConfigureLogTransitionsConfig2-config.txt

@@ -0,0 +1,236 @@
+^
+---
+events:(
+  -
+    kind: "find-v1"(
+    [^
+]*)+|
++  -
+    kind: "message-v1"
+    backtrace:(
+      - "[^"]+")+
+    message: \|(
++      [^
+]*)*)*
+  -
+    kind: "message-v1"
+    backtrace:
+      - "ConfigureLogTransitionsConfig2.cmake:[0-9]+ \(message\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    message: |
+      NotDefined -> NotFound
+  -
+    kind: "find_package-v1"
+    backtrace:
+      - "ConfigureLogTransitionsConfig2.cmake:[0-9]+ \(find_package\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    name: "ViaConfig"
+    configs:
+      -
+        filename: "ViaConfigConfig.cmake"
+        kind: "cmake"
+      -
+        filename: "viaconfig-config.cmake"
+        kind: "cmake"
+    version_request:
+      exact: false
+    settings:
+      required: "optional"
+      quiet: false
+      global: false
+      policy_scope: true
+      bypass_provider: false
+      names:
+        - "ViaConfig"
+      path_suffixes:
+        - ""
+      paths:
+        CMAKE_FIND_USE_CMAKE_PATH: true
+        CMAKE_FIND_USE_CMAKE_ENVIRONMENT_PATH: true
+        CMAKE_FIND_USE_SYSTEM_ENVIRONMENT_PATH: true
+        CMAKE_FIND_USE_CMAKE_SYSTEM_PATH: true
+        CMAKE_FIND_USE_INSTALL_PREFIX: true
+        CMAKE_FIND_USE_PACKAGE_ROOT_PATH: true
+        CMAKE_FIND_USE_CMAKE_PACKAGE_REGISTRY: true
+        CMAKE_FIND_USE_SYSTEM_PACKAGE_REGISTRY: true
+        CMAKE_FIND_ROOT_PATH_MODE: "BOTH"
+    candidates:
+      -
+        path: "[^"]*/Tests/RunCMake/find_package/ConfigureLogTransitionsConfig2-build/CMakeFiles/pkgRedirects/ViaConfigConfig.cmake"
+        mode: "config"
+        reason: "no_exist"
+      -
+        path: "[^"]*/Tests/RunCMake/find_package/ConfigureLogTransitionsConfig2-build/CMakeFiles/pkgRedirects/viaconfig-config.cmake"
+        mode: "config"
+        reason: "no_exist"(
+      -
+        path: "[^"]*/(viaconfig-config|ViaConfigConfig).cmake"
+        mode: "config"
+        reason: "no_exist")*
+    found: null
+    search_context:(
+      [^
+]+)+
+  -
+    kind: "message-v1"
+    backtrace:
+      - "ConfigureLogTransitionsConfig2.cmake:[0-9]+ \(message\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    message: |
+      NotFound -> NotFound
+  -
+    kind: "message-v1"
+    backtrace:
+      - "ConfigureLogTransitionsConfig2.cmake:[0-9]+ \(message\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    message: \|
+      NotFound -> Found
+  -
+    kind: "find_package-v1"
+    backtrace:
+      - "ConfigureLogTransitionsConfig2.cmake:[0-9]+ \(find_package\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    name: "ViaConfig"
+    configs:
+      -
+        filename: "ViaConfigConfig.cmake"
+        kind: "cmake"
+      -
+        filename: "viaconfig-config.cmake"
+        kind: "cmake"
+    version_request:
+      exact: false
+    settings:
+      required: "optional"
+      quiet: false
+      global: false
+      policy_scope: true
+      bypass_provider: false
+      names:
+        - "ViaConfig"
+      path_suffixes:
+        - ""
+      paths:
+        CMAKE_FIND_USE_CMAKE_PATH: true
+        CMAKE_FIND_USE_CMAKE_ENVIRONMENT_PATH: true
+        CMAKE_FIND_USE_SYSTEM_ENVIRONMENT_PATH: true
+        CMAKE_FIND_USE_CMAKE_SYSTEM_PATH: true
+        CMAKE_FIND_USE_INSTALL_PREFIX: true
+        CMAKE_FIND_USE_PACKAGE_ROOT_PATH: true
+        CMAKE_FIND_USE_CMAKE_PACKAGE_REGISTRY: true
+        CMAKE_FIND_USE_SYSTEM_PACKAGE_REGISTRY: true
+        CMAKE_FIND_ROOT_PATH_MODE: "BOTH"
+    candidates:
+      -
+        path: "[^"]*/Tests/RunCMake/find_package/ConfigureLogTransitionsConfig2-build/CMakeFiles/pkgRedirects/ViaConfigConfig.cmake"
+        mode: "config"
+        reason: "no_exist"
+      -
+        path: "[^"]*/Tests/RunCMake/find_package/ConfigureLogTransitionsConfig2-build/CMakeFiles/pkgRedirects/viaconfig-config.cmake"
+        mode: "config"
+        reason: "no_exist"
+      -
+        path: "[^"]*/Tests/RunCMake/find_package/ConfigureLog/ViaConfigConfig.cmake"
+        mode: "config"
+        reason: "no_exist"
+      -
+        path: "[^"]*/Tests/RunCMake/find_package/ConfigureLog/viaconfig-config.cmake"
+        mode: "config"
+        reason: "no_exist"
+      -
+        path: "[^"]*/Tests/RunCMake/find_package/ConfigureLog/cmake/ViaConfigConfig.cmake"
+        mode: "config"
+        reason: "no_exist"
+      -
+        path: "[^"]*/Tests/RunCMake/find_package/ConfigureLog/cmake/viaconfig-config.cmake"
+        mode: "config"
+        reason: "no_exist"
+    found:
+      path: "[^"]*/Tests/RunCMake/find_package/ConfigureLog/lib/cmake/ViaConfig/ViaConfigConfig.cmake"
+      mode: "config"
+      version: "1\.0"
+    search_context:(
+      [^
+]*)+
+  -
+    kind: "message-v1"
+    backtrace:
+      - "ConfigureLogTransitionsConfig2.cmake:[0-9]+ \(message\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    message: \|
+      Found -> Found
+  -
+    kind: "message-v1"
+    backtrace:
+      - "ConfigureLogTransitionsConfig2.cmake:[0-9]+ \(message\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    message: \|
+      Found -> NotFound
+  -
+    kind: "find_package-v1"
+    backtrace:
+      - "ConfigureLogTransitionsConfig2.cmake:[0-9]+ \(find_package\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    name: "ViaConfig"
+    configs:
+      -
+        filename: "ViaConfigConfig.cmake"
+        kind: "cmake"
+      -
+        filename: "viaconfig-config.cmake"
+        kind: "cmake"
+    version_request:
+      exact: false
+    settings:
+      required: "optional"
+      quiet: false
+      global: false
+      policy_scope: true
+      bypass_provider: false
+      names:
+        - "ViaConfig"
+      path_suffixes:
+        - ""
+      paths:
+        CMAKE_FIND_USE_CMAKE_PATH: true
+        CMAKE_FIND_USE_CMAKE_ENVIRONMENT_PATH: true
+        CMAKE_FIND_USE_SYSTEM_ENVIRONMENT_PATH: true
+        CMAKE_FIND_USE_CMAKE_SYSTEM_PATH: true
+        CMAKE_FIND_USE_INSTALL_PREFIX: true
+        CMAKE_FIND_USE_PACKAGE_ROOT_PATH: true
+        CMAKE_FIND_USE_CMAKE_PACKAGE_REGISTRY: true
+        CMAKE_FIND_USE_SYSTEM_PACKAGE_REGISTRY: true
+        CMAKE_FIND_ROOT_PATH_MODE: "BOTH"
+    candidates:
+      -
+        path: "[^"]*/Tests/RunCMake/find_package/ViaConfigConfig.cmake"
+        mode: "none\?"
+        reason: "no_exist"
+      -
+        path: "[^"]*/Tests/RunCMake/find_package/viaconfig-config.cmake"
+        mode: "none\?"
+        reason: "no_exist"
+      -
+        path: "[^"]*/Tests/RunCMake/find_package/ConfigureLogTransitionsConfig2-build/CMakeFiles/pkgRedirects/ViaConfigConfig.cmake"
+        mode: "config"
+        reason: "no_exist"
+      -
+        path: "[^"]*/Tests/RunCMake/find_package/ConfigureLogTransitionsConfig2-build/CMakeFiles/pkgRedirects/viaconfig-config.cmake"
+        mode: "config"
+        reason: "no_exist"(
+      -
+        path: "[^"]*/(viaconfig-config|ViaConfigConfig).cmake"
+        mode: "config"
+        reason: "no_exist")*
+    found: null
+    search_context:(
+      [^
+]+)+
+  -
+    kind: "message-v1"
+    backtrace:
+      - "ConfigureLogTransitionsConfig2.cmake:[0-9]+ \(message\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    message: \|
+      END
+\.\.\.$

Tests/RunCMake/find_package/ConfigureLogTransitionsConfig2-stderr.txt

@@ -0,0 +1,63 @@
+^NotDefined -> NotFound
+CMake Warning at ConfigureLogTransitionsConfig2.cmake:[0-9]+ \(find_package\):
+  By not providing "FindViaConfig.cmake" in CMAKE_MODULE_PATH this project
+  has asked CMake to find a package configuration file provided by
+  "ViaConfig", but CMake did not find one.
+
+  Could not find a package configuration file provided by "ViaConfig" with
+  any of the following names:
+
+    ViaConfigConfig.cmake
+    viaconfig-config.cmake
+
+  Add the installation prefix of "ViaConfig" to CMAKE_PREFIX_PATH or set
+  "ViaConfig_DIR" to a directory containing one of the above files.  If
+  "ViaConfig" provides a separate development package or SDK, be sure it has
+  been installed.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:[0-9]+ \(include\)
+
+
+NotFound -> NotFound
+CMake Warning at ConfigureLogTransitionsConfig2.cmake:[0-9]+ \(find_package\):
+  By not providing "FindViaConfig.cmake" in CMAKE_MODULE_PATH this project
+  has asked CMake to find a package configuration file provided by
+  "ViaConfig", but CMake did not find one.
+
+  Could not find a package configuration file provided by "ViaConfig" with
+  any of the following names:
+
+    ViaConfigConfig.cmake
+    viaconfig-config.cmake
+
+  Add the installation prefix of "ViaConfig" to CMAKE_PREFIX_PATH or set
+  "ViaConfig_DIR" to a directory containing one of the above files.  If
+  "ViaConfig" provides a separate development package or SDK, be sure it has
+  been installed.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:[0-9]+ \(include\)
+
+
+NotFound -> Found
+Found -> Found
+Found -> NotFound
+CMake Warning at ConfigureLogTransitionsConfig2.cmake:[0-9]+ \(find_package\):
+  By not providing "FindViaConfig.cmake" in CMAKE_MODULE_PATH this project
+  has asked CMake to find a package configuration file provided by
+  "ViaConfig", but CMake did not find one.
+
+  Could not find a package configuration file provided by "ViaConfig" with
+  any of the following names:
+
+    ViaConfigConfig.cmake
+    viaconfig-config.cmake
+
+  Add the installation prefix of "ViaConfig" to CMAKE_PREFIX_PATH or set
+  "ViaConfig_DIR" to a directory containing one of the above files.  If
+  "ViaConfig" provides a separate development package or SDK, be sure it has
+  been installed.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:[0-9]+ \(include\)
+
+
+END

Tests/RunCMake/find_package/ConfigureLogTransitionsConfig2.cmake

@@ -0,0 +1,43 @@
+# Stable sorting for predictable behaviors.
+set(CMAKE_FIND_PACKAGE_SORT_ORDER NAME)
+
+# Unset search variables for more predictable output.
+unset(CMAKE_FRAMEWORK_PATH)
+unset(CMAKE_APPBUNDLE_PATH)
+unset(ENV{CMAKE_PREFIX_PATH})
+unset(ENV{CMAKE_FRAMEWORK_PATH})
+unset(ENV{CMAKE_APPBUNDLE_PATH})
+
+message("NotDefined -> NotFound")
+message(CONFIGURE_LOG "NotDefined -> NotFound")
+find_package(ViaConfig)
+
+message("NotFound -> NotFound")
+message(CONFIGURE_LOG "NotFound -> NotFound")
+find_package(ViaConfig)
+
+list(INSERT CMAKE_MODULE_PATH 0
+  "${CMAKE_CURRENT_LIST_DIR}/ConfigureLog/cmake")
+list(INSERT CMAKE_PREFIX_PATH 0
+  "${CMAKE_CURRENT_LIST_DIR}/ConfigureLog")
+
+message("NotFound -> Found")
+message(CONFIGURE_LOG "NotFound -> Found")
+find_package(ViaConfig)
+
+message("Found -> Found")
+message(CONFIGURE_LOG "Found -> Found")
+find_package(ViaConfig)
+
+message("Found -> NotFound")
+message(CONFIGURE_LOG "Found -> NotFound")
+list(REMOVE_AT CMAKE_PREFIX_PATH 0)
+list(REMOVE_AT CMAKE_MODULE_PATH 0)
+set_property(CACHE ViaConfig_DIR
+  PROPERTY
+    VALUE "${CMAKE_CURRENT_SOURCE_DIR}")
+
+find_package(ViaConfig)
+
+message("END")
+message(CONFIGURE_LOG "END")

Tests/RunCMake/find_package/ConfigureLogTransitionsModule-config.txt

@@ -0,0 +1,57 @@
+^
+---
+events:(
+  -
+    kind: "find-v1"(
+    [^
+]*)+|
++  -
+    kind: "message-v1"
+    backtrace:(
+      - "[^"]+")+
+    message: \|(
++      [^
+]*)*)*
+  -
+    kind: "message-v1"
+    backtrace:
+      - "ConfigureLogTransitionsModule.cmake:[0-9]+ \(message\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    message: \|
+      NotDefined -> NotFound
+  -
+    kind: "message-v1"
+    backtrace:
+      - "ConfigureLogTransitionsModule.cmake:[0-9]+ \(message\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    message: \|
+      NotFound -> NotFound
+  -
+    kind: "message-v1"
+    backtrace:
+      - "ConfigureLogTransitionsModule.cmake:[0-9]+ \(message\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    message: \|
+      NotFound -> Found
+  -
+    kind: "message-v1"
+    backtrace:
+      - "ConfigureLogTransitionsModule.cmake:[0-9]+ \(message\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    message: \|
+      Found -> Found
+  -
+    kind: "message-v1"
+    backtrace:
+      - "ConfigureLogTransitionsModule.cmake:[0-9]+ \(message\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    message: \|
+      Found -> NotFound
+  -
+    kind: "message-v1"
+    backtrace:
+      - "ConfigureLogTransitionsModule.cmake:[0-9]+ \(message\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    message: \|
+      END
+\.\.\.$

Tests/RunCMake/find_package/ConfigureLogTransitionsModule-stderr.txt

@@ -0,0 +1,72 @@
+^NotDefined -> NotFound
+CMake Warning at ConfigureLogTransitionsModule.cmake:[0-9]+ \(find_package\):
+  No "FindViaModule.cmake" found in CMAKE_MODULE_PATH.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:[0-9]+ \(include\)
+
+
+CMake Warning \(dev\) at ConfigureLogTransitionsModule.cmake:[0-9]+ \(find_package\):
+  FindViaModule.cmake must either be part of this project itself, in this
+  case adjust CMAKE_MODULE_PATH so that it points to the correct location
+  inside its source tree.
+
+  Or it must be installed by a package which has already been found via
+  find_package\(\).  In this case make sure that package has indeed been found
+  and adjust CMAKE_MODULE_PATH to contain the location where that package has
+  installed FindViaModule.cmake.  This must be a location provided by that
+  package.  This error in general means that the buildsystem of this project
+  is relying on a Find-module without ensuring that it is actually available.
+
+Call Stack \(most recent call first\):
+  CMakeLists.txt:[0-9]+ \(include\)
+This warning is for project developers.  Use -Wno-dev to suppress it.
+
+NotFound -> NotFound
+CMake Warning at ConfigureLogTransitionsModule.cmake:[0-9]+ \(find_package\):
+  No "FindViaModule.cmake" found in CMAKE_MODULE_PATH.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:[0-9]+ \(include\)
+
+
+CMake Warning \(dev\) at ConfigureLogTransitionsModule.cmake:[0-9]+ \(find_package\):
+  FindViaModule.cmake must either be part of this project itself, in this
+  case adjust CMAKE_MODULE_PATH so that it points to the correct location
+  inside its source tree.
+
+  Or it must be installed by a package which has already been found via
+  find_package\(\).  In this case make sure that package has indeed been found
+  and adjust CMAKE_MODULE_PATH to contain the location where that package has
+  installed FindViaModule.cmake.  This must be a location provided by that
+  package.  This error in general means that the buildsystem of this project
+  is relying on a Find-module without ensuring that it is actually available.
+
+Call Stack \(most recent call first\):
+  CMakeLists.txt:[0-9]+ \(include\)
+This warning is for project developers.  Use -Wno-dev to suppress it.
+
+NotFound -> Found
+Found -> Found
+Found -> NotFound
+CMake Warning at ConfigureLogTransitionsModule.cmake:[0-9]+ \(find_package\):
+  No "FindViaModule.cmake" found in CMAKE_MODULE_PATH.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:[0-9]+ \(include\)
+
+
+CMake Warning \(dev\) at ConfigureLogTransitionsModule.cmake:[0-9]+ \(find_package\):
+  FindViaModule.cmake must either be part of this project itself, in this
+  case adjust CMAKE_MODULE_PATH so that it points to the correct location
+  inside its source tree.
+
+  Or it must be installed by a package which has already been found via
+  find_package\(\).  In this case make sure that package has indeed been found
+  and adjust CMAKE_MODULE_PATH to contain the location where that package has
+  installed FindViaModule.cmake.  This must be a location provided by that
+  package.  This error in general means that the buildsystem of this project
+  is relying on a Find-module without ensuring that it is actually available.
+
+Call Stack \(most recent call first\):
+  CMakeLists.txt:[0-9]+ \(include\)
+This warning is for project developers.  Use -Wno-dev to suppress it.
+
+END$

Tests/RunCMake/find_package/ConfigureLogTransitionsModule.cmake

@@ -0,0 +1,41 @@
+# Stable sorting for predictable behaviors.
+set(CMAKE_FIND_PACKAGE_SORT_ORDER NAME)
+
+# Unset search variables for more predictable output.
+unset(CMAKE_FRAMEWORK_PATH)
+unset(CMAKE_APPBUNDLE_PATH)
+unset(ENV{CMAKE_PREFIX_PATH})
+unset(ENV{CMAKE_FRAMEWORK_PATH})
+unset(ENV{CMAKE_APPBUNDLE_PATH})
+
+message("NotDefined -> NotFound")
+message(CONFIGURE_LOG "NotDefined -> NotFound")
+find_package(ViaModule MODULE)
+
+message("NotFound -> NotFound")
+message(CONFIGURE_LOG "NotFound -> NotFound")
+find_package(ViaModule MODULE)
+
+list(INSERT CMAKE_MODULE_PATH 0
+  "${CMAKE_CURRENT_LIST_DIR}/ConfigureLog/cmake")
+list(INSERT CMAKE_PREFIX_PATH 0
+  "${CMAKE_CURRENT_LIST_DIR}/ConfigureLog")
+
+message("NotFound -> Found")
+message(CONFIGURE_LOG "NotFound -> Found")
+find_package(ViaModule MODULE)
+
+message("Found -> Found")
+message(CONFIGURE_LOG "Found -> Found")
+find_package(ViaModule MODULE)
+
+message("Found -> NotFound")
+message(CONFIGURE_LOG "Found -> NotFound")
+list(REMOVE_AT CMAKE_PREFIX_PATH 0)
+list(REMOVE_AT CMAKE_MODULE_PATH 0)
+unset(ViaModule_FOUND)
+
+find_package(ViaModule MODULE)
+
+message("END")
+message(CONFIGURE_LOG "END")

Tests/RunCMake/find_package/ConfigureLogTransitionsModule2-config.txt

@@ -0,0 +1,161 @@
+^
+---
+events:(
+  -
+    kind: "find-v1"(
+    [^
+]*)+|
++  -
+    kind: "message-v1"
+    backtrace:(
+      - "[^"]+")+
+    message: \|(
++      [^
+]*)*)*
+  -
+    kind: "message-v1"
+    backtrace:
+      - "ConfigureLogTransitionsModule2.cmake:[0-9]+ \(message\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    message: \|
+      NotDefined -> NotFound
+  -
+    kind: "find_package-v1"
+    backtrace:
+      - "ConfigureLogTransitionsModule2.cmake:[0-9]+ \(find_package\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    name: "ViaModule"
+    configs:
+      -
+        filename: "ViaModuleConfig.cmake"
+        kind: "cmake"
+      -
+        filename: "viamodule-config.cmake"
+        kind: "cmake"
+    version_request:
+      exact: false
+    settings:
+      required: "optional"
+      quiet: false
+      global: false
+      policy_scope: true
+      bypass_provider: false
+      names:
+        - "ViaModule"
+      path_suffixes:
+        - ""
+      paths:
+        CMAKE_FIND_USE_CMAKE_PATH: true
+        CMAKE_FIND_USE_CMAKE_ENVIRONMENT_PATH: true
+        CMAKE_FIND_USE_SYSTEM_ENVIRONMENT_PATH: true
+        CMAKE_FIND_USE_CMAKE_SYSTEM_PATH: true
+        CMAKE_FIND_USE_INSTALL_PREFIX: true
+        CMAKE_FIND_USE_PACKAGE_ROOT_PATH: true
+        CMAKE_FIND_USE_CMAKE_PACKAGE_REGISTRY: true
+        CMAKE_FIND_USE_SYSTEM_PACKAGE_REGISTRY: true
+        CMAKE_FIND_ROOT_PATH_MODE: "BOTH"
+    candidates:
+      -
+        path: "[^"]*/Tests/RunCMake/find_package/ConfigureLogTransitionsModule2-build/CMakeFiles/pkgRedirects/ViaModuleConfig.cmake"
+        mode: "config"
+        reason: "no_exist"
+      -
+        path: "[^"]*/Tests/RunCMake/find_package/ConfigureLogTransitionsModule2-build/CMakeFiles/pkgRedirects/viamodule-config.cmake"
+        mode: "config"
+        reason: "no_exist"(
+      -
+        path: "[^"]*/(viamodule-config|ViaModuleConfig).cmake"
+        mode: "config"
+        reason: "no_exist")*
+    found: null
+    search_context:(
+      [^
+]*)+
+  -
+    kind: "message-v1"
+    backtrace:
+      - "ConfigureLogTransitionsModule2.cmake:[0-9]+ \(message\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    message: \|
+      NotFound -> NotFound
+  -
+    kind: "message-v1"
+    backtrace:
+      - "ConfigureLogTransitionsModule2.cmake:[0-9]+ \(message\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    message: \|
+      NotFound -> Found
+  -
+    kind: "message-v1"
+    backtrace:
+      - "ConfigureLogTransitionsModule2.cmake:[0-9]+ \(message\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    message: \|
+      Found -> Found
+  -
+    kind: "message-v1"
+    backtrace:
+      - "ConfigureLogTransitionsModule2.cmake:[0-9]+ \(message\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    message: \|
+      Found -> NotFound
+  -
+    kind: "find_package-v1"
+    backtrace:
+      - "ConfigureLogTransitionsModule2.cmake:[0-9]+ \(find_package\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    name: "ViaModule"
+    configs:
+      -
+        filename: "ViaModuleConfig.cmake"
+        kind: "cmake"
+      -
+        filename: "viamodule-config.cmake"
+        kind: "cmake"
+    version_request:
+      exact: false
+    settings:
+      required: "optional"
+      quiet: false
+      global: false
+      policy_scope: true
+      bypass_provider: false
+      names:
+        - "ViaModule"
+      path_suffixes:
+        - ""
+      paths:
+        CMAKE_FIND_USE_CMAKE_PATH: true
+        CMAKE_FIND_USE_CMAKE_ENVIRONMENT_PATH: true
+        CMAKE_FIND_USE_SYSTEM_ENVIRONMENT_PATH: true
+        CMAKE_FIND_USE_CMAKE_SYSTEM_PATH: true
+        CMAKE_FIND_USE_INSTALL_PREFIX: true
+        CMAKE_FIND_USE_PACKAGE_ROOT_PATH: true
+        CMAKE_FIND_USE_CMAKE_PACKAGE_REGISTRY: true
+        CMAKE_FIND_USE_SYSTEM_PACKAGE_REGISTRY: true
+        CMAKE_FIND_ROOT_PATH_MODE: "BOTH"
+    candidates:
+      -
+        path: "[^"]*/Tests/RunCMake/find_package/ConfigureLogTransitionsModule2-build/CMakeFiles/pkgRedirects/ViaModuleConfig.cmake"
+        mode: "config"
+        reason: "no_exist"
+      -
+        path: "[^"]*/Tests/RunCMake/find_package/ConfigureLogTransitionsModule2-build/CMakeFiles/pkgRedirects/viamodule-config.cmake"
+        mode: "config"
+        reason: "no_exist"(
+      -
+        path: "[^"]*/(viamodule-config|ViaModuleConfig).cmake"
+        mode: "config"
+        reason: "no_exist")*
+    found: null
+    search_context:(
+      [^
+]+)+
+  -
+    kind: "message-v1"
+    backtrace:
+      - "ConfigureLogTransitionsModule2.cmake:[0-9]+ \(message\)"
+      - "CMakeLists.txt:[0-9]+ \(include\)"
+    message: \|
+      END
+\.\.\.$

Tests/RunCMake/find_package/ConfigureLogTransitionsModule2-stderr.txt

@@ -0,0 +1,63 @@
+^NotDefined -> NotFound
+CMake Warning at ConfigureLogTransitionsModule2.cmake:[0-9]+ \(find_package\):
+  By not providing "FindViaModule.cmake" in CMAKE_MODULE_PATH this project
+  has asked CMake to find a package configuration file provided by
+  "ViaModule", but CMake did not find one.
+
+  Could not find a package configuration file provided by "ViaModule" with
+  any of the following names:
+
+    ViaModuleConfig.cmake
+    viamodule-config.cmake
+
+  Add the installation prefix of "ViaModule" to CMAKE_PREFIX_PATH or set
+  "ViaModule_DIR" to a directory containing one of the above files.  If
+  "ViaModule" provides a separate development package or SDK, be sure it has
+  been installed.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:[0-9]+ \(include\)
+
+
+NotFound -> NotFound
+CMake Warning at ConfigureLogTransitionsModule2.cmake:[0-9]+ \(find_package\):
+  By not providing "FindViaModule.cmake" in CMAKE_MODULE_PATH this project
+  has asked CMake to find a package configuration file provided by
+  "ViaModule", but CMake did not find one.
+
+  Could not find a package configuration file provided by "ViaModule" with
+  any of the following names:
+
+    ViaModuleConfig.cmake
+    viamodule-config.cmake
+
+  Add the installation prefix of "ViaModule" to CMAKE_PREFIX_PATH or set
+  "ViaModule_DIR" to a directory containing one of the above files.  If
+  "ViaModule" provides a separate development package or SDK, be sure it has
+  been installed.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:[0-9]+ \(include\)
+
+
+NotFound -> Found
+Found -> Found
+Found -> NotFound
+CMake Warning at ConfigureLogTransitionsModule2.cmake:[0-9]+ \(find_package\):
+  By not providing "FindViaModule.cmake" in CMAKE_MODULE_PATH this project
+  has asked CMake to find a package configuration file provided by
+  "ViaModule", but CMake did not find one.
+
+  Could not find a package configuration file provided by "ViaModule" with
+  any of the following names:
+
+    ViaModuleConfig.cmake
+    viamodule-config.cmake
+
+  Add the installation prefix of "ViaModule" to CMAKE_PREFIX_PATH or set
+  "ViaModule_DIR" to a directory containing one of the above files.  If
+  "ViaModule" provides a separate development package or SDK, be sure it has
+  been installed.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:[0-9]+ \(include\)
+
+
+END$

Tests/RunCMake/find_package/ConfigureLogTransitionsModule2.cmake

@@ -0,0 +1,40 @@
+# Stable sorting for predictable behaviors.
+set(CMAKE_FIND_PACKAGE_SORT_ORDER NAME)
+
+# Unset search variables for more predictable output.
+unset(CMAKE_FRAMEWORK_PATH)
+unset(CMAKE_APPBUNDLE_PATH)
+unset(ENV{CMAKE_PREFIX_PATH})
+unset(ENV{CMAKE_FRAMEWORK_PATH})
+unset(ENV{CMAKE_APPBUNDLE_PATH})
+
+message("NotDefined -> NotFound")
+message(CONFIGURE_LOG "NotDefined -> NotFound")
+find_package(ViaModule)
+
+message("NotFound -> NotFound")
+message(CONFIGURE_LOG "NotFound -> NotFound")
+find_package(ViaModule)
+
+list(INSERT CMAKE_MODULE_PATH 0
+  "${CMAKE_CURRENT_LIST_DIR}/ConfigureLog/cmake")
+list(INSERT CMAKE_PREFIX_PATH 0
+  "${CMAKE_CURRENT_LIST_DIR}/ConfigureLog")
+
+message("NotFound -> Found")
+message(CONFIGURE_LOG "NotFound -> Found")
+find_package(ViaModule)
+
+message("Found -> Found")
+message(CONFIGURE_LOG "Found -> Found")
+find_package(ViaModule)
+
+message("Found -> NotFound")
+message(CONFIGURE_LOG "Found -> NotFound")
+list(REMOVE_AT CMAKE_PREFIX_PATH 0)
+list(REMOVE_AT CMAKE_MODULE_PATH 0)
+
+find_package(ViaModule)
+
+message("END")
+message(CONFIGURE_LOG "END")

Tests/RunCMake/find_package/RunCMakeTest.cmake

@@ -8,6 +8,10 @@ run_cmake(ConfigureLog)
 # Two tests because the stderr regex otherwise takes way too long to load.
 run_cmake(ConfigureLogParameters1)
 run_cmake(ConfigureLogParameters2)
+run_cmake(ConfigureLogTransitionsConfig) # with `CONFIG`
+run_cmake(ConfigureLogTransitionsConfig2) # without `CONFIG`, finding config
+run_cmake(ConfigureLogTransitionsModule) # with `MODULE`
+run_cmake(ConfigureLogTransitionsModule2) # without `MODULE`, finding module
 run_cmake(EmptyRoots)
 run_cmake(FromPATHEnv)
 run_cmake_with_options(FromPATHEnvDebugPkg --debug-find-pkg=Resolved)