Merge topic 'find_library-NAMES_PER_DIR'

66759ee find_library: Optionally consider all names in each directory
9cb68b1 find_library: Generalize helper macro in test case
b64dd76 find_library: Simplify framework search logic
531c71b find_library: Refactor internal name iteration

7 files changed, 203 insertions, 64 deletions

diff --git a/Source/cmFindBase.cxx b/Source/cmFindBase.cxx
index a54bf7c..1de3982 100644
--- a/Source/cmFindBase.cxx
+++ b/Source/cmFindBase.cxx
@@ -15,6 +15,8 @@ cmFindBase::cmFindBase()
 {
   this->AlreadyInCache = false;
   this->AlreadyInCacheWithoutMetaInfo = false;
+  this->NamesPerDir = false;
+  this->NamesPerDirAllowed = false;
 }
 
 //----------------------------------------------------------------------------
@@ -213,6 +215,19 @@ bool cmFindBase::ParseArguments(std::vector<std::string> const& argsIn)
       compatibility = false;
       newStyle = true;
       }
+    else if (args[j] == "NAMES_PER_DIR")
+      {
+      doing = DoingNone;
+      if(this->NamesPerDirAllowed)
+        {
+        this->NamesPerDir = true;
+        }
+      else
+        {
+        this->SetError("does not support NAMES_PER_DIR");
+        return false;
+        }
+      }
     else if (args[j] == "NO_SYSTEM_PATH")
       {
       doing = DoingNone;
diff --git a/Source/cmFindBase.h b/Source/cmFindBase.h
index eac1885..84b0330 100644
--- a/Source/cmFindBase.h
+++ b/Source/cmFindBase.h
@@ -49,6 +49,8 @@ protected:
   cmStdString VariableDocumentation;
   cmStdString VariableName;
   std::vector<std::string> Names;
+  bool NamesPerDir;
+  bool NamesPerDirAllowed;
 
   // CMAKE_*_PATH CMAKE_SYSTEM_*_PATH FRAMEWORK|LIBRARY|INCLUDE|PROGRAM
   cmStdString EnvironmentPath; // LIB,INCLUDE
diff --git a/Source/cmFindLibraryCommand.cxx b/Source/cmFindLibraryCommand.cxx
index 0080e55..4af7e11 100644
--- a/Source/cmFindLibraryCommand.cxx
+++ b/Source/cmFindLibraryCommand.cxx
@@ -17,6 +17,7 @@
 cmFindLibraryCommand::cmFindLibraryCommand()
 {
   this->EnvironmentPath = "LIB";
+  this->NamesPerDirAllowed = true;
 }
 
 //----------------------------------------------------------------------------
@@ -44,6 +45,9 @@ void cmFindLibraryCommand::GenerateDocumentation()
                                "SEARCH_XXX", "library");
   cmSystemTools::ReplaceString(this->GenericDocumentation,
                                "XXX_SUBDIR", "lib");
+  cmSystemTools::ReplaceString(this->GenericDocumentation,
+                               "NAMES name1 [name2 ...]",
+                               "NAMES name1 [name2 ...] [NAMES_PER_DIR]");
   cmSystemTools::ReplaceString(
     this->GenericDocumentation,
     "XXX_EXTRA_PREFIX_ENTRY",
@@ -53,6 +57,12 @@ void cmFindLibraryCommand::GenerateDocumentation()
                                "CMAKE_FIND_ROOT_PATH_MODE_LIBRARY");
   this->GenericDocumentation +=
     "\n"
+    "When more than one value is given to the NAMES option this command "
+    "by default will consider one name at a time and search every directory "
+    "for it.  "
+    "The NAMES_PER_DIR option tells this command to consider one directory "
+    "at a time and search for all names in it."
+    "\n"
     "If the library found is a framework, then VAR will be set to "
     "the full path to the framework <fullPath>/A.framework. "
     "When a full path to a framework is used as a library, "
@@ -220,18 +230,19 @@ struct cmFindLibraryHelper
   // Keep track of the best library file found so far.
   typedef std::vector<std::string>::size_type size_type;
   std::string BestPath;
-  size_type BestPrefix;
-  size_type BestSuffix;
 
   // Support for OpenBSD shared library naming: lib<name>.so.<major>.<minor>
   bool OpenBSD;
-  unsigned int BestMajor;
-  unsigned int BestMinor;
 
-  // Current name under consideration.
-  cmsys::RegularExpression NameRegex;
-  bool TryRawName;
-  std::string RawName;
+  // Current names under consideration.
+  struct Name
+  {
+    bool TryRaw;
+    std::string Raw;
+    cmsys::RegularExpression Regex;
+    Name(): TryRaw(false) {}
+  };
+  std::vector<Name> Names;
 
   // Current full path under consideration.
   std::string TestPath;
@@ -249,8 +260,9 @@ struct cmFindLibraryHelper
                            suffix) - this->Suffixes.begin();
     }
   bool HasValidSuffix(std::string const& name);
-  void SetName(std::string const& name);
+  void AddName(std::string const& name);
   bool CheckDirectory(std::string const& path);
+  bool CheckDirectoryForName(std::string const& path, Name& name);
 };
 
 //----------------------------------------------------------------------------
@@ -273,14 +285,6 @@ cmFindLibraryHelper::cmFindLibraryHelper(cmMakefile* mf):
   this->OpenBSD =
     this->Makefile->GetCMakeInstance()
     ->GetPropertyAsBool("FIND_LIBRARY_USE_OPENBSD_VERSIONING");
-
-  this->TryRawName = false;
-
-  // No library file has yet been found.
-  this->BestPrefix = this->Prefixes.size();
-  this->BestSuffix = this->Suffixes.size();
-  this->BestMajor = 0;
-  this->BestMinor = 0;
 }
 
 //----------------------------------------------------------------------------
@@ -353,11 +357,13 @@ bool cmFindLibraryHelper::HasValidSuffix(std::string const& name)
 }
 
 //----------------------------------------------------------------------------
-void cmFindLibraryHelper::SetName(std::string const& name)
+void cmFindLibraryHelper::AddName(std::string const& name)
 {
+  Name entry;
+
   // Consider checking the raw name too.
-  this->TryRawName = this->HasValidSuffix(name);
-  this->RawName = name;
+  entry.TryRaw = this->HasValidSuffix(name);
+  entry.Raw = name;
 
   // Build a regular expression to match library names.
   std::string regex = "^";
@@ -369,21 +375,37 @@ void cmFindLibraryHelper::SetName(std::string const& name)
     regex += "(\\.[0-9]+\\.[0-9]+)?";
     }
   regex += "$";
-  this->NameRegex.compile(regex.c_str());
+  entry.Regex.compile(regex.c_str());
+  this->Names.push_back(entry);
 }
 
 //----------------------------------------------------------------------------
 bool cmFindLibraryHelper::CheckDirectory(std::string const& path)
 {
+  for(std::vector<Name>::iterator i = this->Names.begin();
+      i != this->Names.end(); ++i)
+    {
+    if(this->CheckDirectoryForName(path, *i))
+      {
+      return true;
+      }
+    }
+  return false;
+}
+
+//----------------------------------------------------------------------------
+bool cmFindLibraryHelper::CheckDirectoryForName(std::string const& path,
+                                                Name& name)
+{
   // If the original library name provided by the user matches one of
   // the suffixes, try it first.  This allows users to search
   // specifically for a static library on some platforms (on MS tools
   // one cannot tell just from the library name whether it is a static
   // library or an import library).
-  if(this->TryRawName)
+  if(name.TryRaw)
     {
     this->TestPath = path;
-    this->TestPath += this->RawName;
+    this->TestPath += name.Raw;
     if(cmSystemTools::FileExists(this->TestPath.c_str(), true))
       {
       this->BestPath =
@@ -393,6 +415,12 @@ bool cmFindLibraryHelper::CheckDirectory(std::string const& path)
       }
     }
 
+  // No library file has yet been found.
+  size_type bestPrefix = this->Prefixes.size();
+  size_type bestSuffix = this->Suffixes.size();
+  unsigned int bestMajor = 0;
+  unsigned int bestMinor = 0;
+
   // Search for a file matching the library name regex.
   std::string dir = path;
   cmSystemTools::ConvertToUnixSlashes(dir);
@@ -406,7 +434,7 @@ bool cmFindLibraryHelper::CheckDirectory(std::string const& path)
 #else
     std::string const& testName = origName;
 #endif
-    if(this->NameRegex.find(testName))
+    if(name.Regex.find(testName))
       {
       this->TestPath = path;
       this->TestPath += origName;
@@ -416,25 +444,25 @@ bool cmFindLibraryHelper::CheckDirectory(std::string const& path)
         // best name found so far.  Earlier prefixes are preferred,
         // followed by earlier suffixes.  For OpenBSD, shared library
         // version extensions are compared.
-        size_type prefix = this->GetPrefixIndex(this->NameRegex.match(1));
-        size_type suffix = this->GetSuffixIndex(this->NameRegex.match(2));
+        size_type prefix = this->GetPrefixIndex(name.Regex.match(1));
+        size_type suffix = this->GetSuffixIndex(name.Regex.match(2));
         unsigned int major = 0;
         unsigned int minor = 0;
         if(this->OpenBSD)
           {
-          sscanf(this->NameRegex.match(3).c_str(), ".%u.%u", &major, &minor);
+          sscanf(name.Regex.match(3).c_str(), ".%u.%u", &major, &minor);
           }
-        if(this->BestPath.empty() || prefix < this->BestPrefix ||
-           (prefix == this->BestPrefix && suffix < this->BestSuffix) ||
-           (prefix == this->BestPrefix && suffix == this->BestSuffix &&
-            (major > this->BestMajor ||
-             (major == this->BestMajor && minor > this->BestMinor))))
+        if(this->BestPath.empty() || prefix < bestPrefix ||
+           (prefix == bestPrefix && suffix < bestSuffix) ||
+           (prefix == bestPrefix && suffix == bestSuffix &&
+            (major > bestMajor ||
+             (major == bestMajor && minor > bestMinor))))
           {
           this->BestPath = this->TestPath;
-          this->BestPrefix = prefix;
-          this->BestSuffix = suffix;
-          this->BestMajor = major;
-          this->BestMinor = minor;
+          bestPrefix = prefix;
+          bestSuffix = suffix;
+          bestMajor = major;
+          bestMinor = minor;
           }
         }
       }
@@ -447,6 +475,42 @@ bool cmFindLibraryHelper::CheckDirectory(std::string const& path)
 //----------------------------------------------------------------------------
 std::string cmFindLibraryCommand::FindNormalLibrary()
 {
+  if(this->NamesPerDir)
+    {
+    return this->FindNormalLibraryNamesPerDir();
+    }
+  else
+    {
+    return this->FindNormalLibraryDirsPerName();
+    }
+}
+
+//----------------------------------------------------------------------------
+std::string cmFindLibraryCommand::FindNormalLibraryNamesPerDir()
+{
+  // Search for all names in each directory.
+  cmFindLibraryHelper helper(this->Makefile);
+  for(std::vector<std::string>::const_iterator ni = this->Names.begin();
+      ni != this->Names.end() ; ++ni)
+    {
+    helper.AddName(*ni);
+    }
+  // Search every directory.
+  for(std::vector<std::string>::const_iterator
+        p = this->SearchPaths.begin(); p != this->SearchPaths.end(); ++p)
+    {
+    if(helper.CheckDirectory(*p))
+      {
+      return helper.BestPath;
+      }
+    }
+  // Couldn't find the library.
+  return "";
+}
+
+//----------------------------------------------------------------------------
+std::string cmFindLibraryCommand::FindNormalLibraryDirsPerName()
+{
   // Search the entire path for each name.
   cmFindLibraryHelper helper(this->Makefile);
   for(std::vector<std::string>::const_iterator ni = this->Names.begin();
@@ -454,7 +518,7 @@ std::string cmFindLibraryCommand::FindNormalLibrary()
     {
     // Switch to searching for this name.
     std::string const& name = *ni;
-    helper.SetName(name);
+    helper.AddName(name);
 
     // Search every directory.
     for(std::vector<std::string>::const_iterator
@@ -474,19 +538,60 @@ std::string cmFindLibraryCommand::FindNormalLibrary()
 //----------------------------------------------------------------------------
 std::string cmFindLibraryCommand::FindFrameworkLibrary()
 {
-  // Search for a framework of each name in the entire search path.
+  if(this->NamesPerDir)
+    {
+    return this->FindFrameworkLibraryNamesPerDir();
+    }
+  else
+    {
+    return this->FindFrameworkLibraryDirsPerName();
+    }
+}
+
+//----------------------------------------------------------------------------
+std::string cmFindLibraryCommand::FindFrameworkLibraryNamesPerDir()
+{
+  std::string fwPath;
+  // Search for all names in each search path.
+  for(std::vector<std::string>::const_iterator di = this->SearchPaths.begin();
+      di != this->SearchPaths.end(); ++di)
+    {
+    for(std::vector<std::string>::const_iterator ni = this->Names.begin();
+        ni != this->Names.end() ; ++ni)
+      {
+      fwPath = *di;
+      fwPath += *ni;
+      fwPath += ".framework";
+      if(cmSystemTools::FileIsDirectory(fwPath.c_str()))
+        {
+        return cmSystemTools::CollapseFullPath(fwPath.c_str());
+        }
+      }
+    }
+
+  // No framework found.
+  return "";
+}
+
+//----------------------------------------------------------------------------
+std::string cmFindLibraryCommand::FindFrameworkLibraryDirsPerName()
+{
+  std::string fwPath;
+  // Search for each name in all search paths.
   for(std::vector<std::string>::const_iterator ni = this->Names.begin();
       ni != this->Names.end() ; ++ni)
     {
-    // Search the paths for a framework with this name.
-    std::string fwName = *ni;
-    fwName += ".framework";
-    std::string fwPath = cmSystemTools::FindDirectory(fwName.c_str(),
-                                                      this->SearchPaths,
-                                                      true);
-    if(!fwPath.empty())
+    for(std::vector<std::string>::const_iterator
+          di = this->SearchPaths.begin();
+        di != this->SearchPaths.end(); ++di)
       {
-      return fwPath;
+      fwPath = *di;
+      fwPath += *ni;
+      fwPath += ".framework";
+      if(cmSystemTools::FileIsDirectory(fwPath.c_str()))
+        {
+        return cmSystemTools::CollapseFullPath(fwPath.c_str());
+        }
       }
     }
 
diff --git a/Source/cmFindLibraryCommand.h b/Source/cmFindLibraryCommand.h
index 455348a..cd0fce8 100644
--- a/Source/cmFindLibraryCommand.h
+++ b/Source/cmFindLibraryCommand.h
@@ -70,7 +70,11 @@ protected:
   virtual void GenerateDocumentation();
 private:
   std::string FindNormalLibrary();
+  std::string FindNormalLibraryNamesPerDir();
+  std::string FindNormalLibraryDirsPerName();
   std::string FindFrameworkLibrary();
+  std::string FindFrameworkLibraryNamesPerDir();
+  std::string FindFrameworkLibraryDirsPerName();
 };
 
 
diff --git a/Tests/CMakeOnly/find_library/A/libtestA.a b/Tests/CMakeOnly/find_library/A/libtestA.a
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/Tests/CMakeOnly/find_library/A/libtestA.a
diff --git a/Tests/CMakeOnly/find_library/B/libtestB.a b/Tests/CMakeOnly/find_library/B/libtestB.a
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/Tests/CMakeOnly/find_library/B/libtestB.a
diff --git a/Tests/CMakeOnly/find_library/CMakeLists.txt b/Tests/CMakeOnly/find_library/CMakeLists.txt
index 08f9331..2d4ecaf 100644
--- a/Tests/CMakeOnly/find_library/CMakeLists.txt
+++ b/Tests/CMakeOnly/find_library/CMakeLists.txt
@@ -3,34 +3,34 @@ project(FindLibraryTest NONE)
 
 set(CMAKE_FIND_DEBUG_MODE 1)
 
-macro(test_find_library expected)
-  get_filename_component(dir ${expected} PATH)
-  get_filename_component(name ${expected} NAME)
-  string(REGEX REPLACE "lib/?64" "lib" dir "${dir}")
+macro(test_find_library desc expected)
   unset(LIB CACHE)
-  find_library(LIB
-    NAMES ${name}
-    PATHS ${CMAKE_CURRENT_SOURCE_DIR}/${dir}
-    NO_DEFAULT_PATH
-    )
+  find_library(LIB ${ARGN} NO_DEFAULT_PATH)
   if(LIB)
     # Convert to relative path for comparison to expected location.
     file(RELATIVE_PATH REL_LIB "${CMAKE_CURRENT_SOURCE_DIR}" "${LIB}")
 
-    # Debugging output.
-    if(CMAKE_FIND_DEBUG_MODE)
-      message(STATUS "Library ${expected} searched as ${dir}, found as [${REL_LIB}].")
-    endif()
-
     # Check and report failure.
     if(NOT "${REL_LIB}" STREQUAL "${expected}")
-      message(SEND_ERROR "Library ${l} should have been [${expected}] but was [${REL_LIB}]")
+      message(SEND_ERROR "Library ${expected} found as [${REL_LIB}]${desc}")
+    elseif(CMAKE_FIND_DEBUG_MODE)
+      message(STATUS "Library ${expected} found as [${REL_LIB}]${desc}")
     endif()
   else()
-    message(SEND_ERROR "Library ${expected} searched as ${dir}, NOT FOUND!")
+    message(SEND_ERROR "Library ${expected} NOT FOUND${desc}")
   endif()
 endmacro()
 
+macro(test_find_library_subst expected)
+  get_filename_component(dir ${expected} PATH)
+  get_filename_component(name ${expected} NAME)
+  string(REGEX REPLACE "lib/?64" "lib" dir "${dir}")
+  test_find_library(", searched as ${dir}" "${expected}"
+    NAMES ${name}
+    PATHS ${CMAKE_CURRENT_SOURCE_DIR}/${dir}
+    )
+endmacro()
+
 set(CMAKE_FIND_LIBRARY_PREFIXES "lib")
 set(CMAKE_FIND_LIBRARY_SUFFIXES ".a")
 set_property(GLOBAL PROPERTY FIND_LIBRARY_USE_LIB64_PATHS TRUE)
@@ -44,7 +44,7 @@ foreach(lib
     lib/libtest3.a
     lib/libtest3.a
     )
-  test_find_library(${lib})
+  test_find_library_subst(${lib})
 endforeach()
 
 set(CMAKE_SIZEOF_VOID_P 8)
@@ -57,5 +57,18 @@ foreach(lib64
     lib64/A/libtest1.a
     lib64/libtest1.a
     )
-  test_find_library(${lib64})
+  test_find_library_subst(${lib64})
 endforeach()
+
+test_find_library("" A/libtestA.a
+  NAMES testA testB
+  PATHS ${CMAKE_CURRENT_SOURCE_DIR}/A ${CMAKE_CURRENT_SOURCE_DIR}/B
+  )
+test_find_library("" B/libtestB.a
+  NAMES testB testA
+  PATHS ${CMAKE_CURRENT_SOURCE_DIR}/A ${CMAKE_CURRENT_SOURCE_DIR}/B
+  )
+test_find_library("" A/libtestA.a
+  NAMES testB testA NAMES_PER_DIR
+  PATHS ${CMAKE_CURRENT_SOURCE_DIR}/A ${CMAKE_CURRENT_SOURCE_DIR}/B
+  )