clap

commit a03904f0f019dc7d290629fe11404400f2a6cce2
parent bd46db5e6e7e1b53ca7dec5bb92460e61552ee2b
Author: Alexandre BIQUE <bique.alexandre@gmail.com>
Date:   Sun,  1 Aug 2021 19:30:35 +0200

Add a development path provider, for convenience

Diffstat:
M
examples/plugins/path-provider.cc
 | 
44
++++++++++++++++++++++++++++++++++++++++++--

1 file changed, 42 insertions(+), 2 deletions(-)
diff --git a/examples/plugins/path-provider.cc b/examples/plugins/path-provider.cc
@@ -1,7 +1,7 @@
 #include <cassert>
 #include <cstring>
-#include <regex>
 #include <filesystem>
+#include <regex>
 
 #include "path-provider.hh"
 
@@ -26,13 +26,53 @@ namespace clap {
       const std::filesystem::path prefix_;
    };
 
+   class LinuxDevelopmentPathProvider final : public PathProvider {
+   public:
+      LinuxDevelopmentPathProvider(const std::string &pluginPath)
+         : srcRoot_(computeSrcRoot(pluginPath)), buildRoot_(computeBuildRoot(pluginPath)) {}
+
+      static std::string computeSrcRoot(const std::string &pluginPath) {
+         static const std::regex r("(/.*)/cmake-builds/.*$", std::regex::optimize);
+
+         std::smatch m;
+         if (!std::regex_match(pluginPath, m, r))
+            return "";
+         return m[1];
+      }
+
+      static std::string computeBuildRoot(const std::string &pluginPath) {
+         static const std::regex r("(/.*/cmake-builds/.*)/examples/plugins/.*\\.clap$",
+                                   std::regex::optimize);
+
+         std::smatch m;
+         if (!std::regex_match(pluginPath, m, r))
+            return "";
+         return m[1];
+      }
+
+      std::string getGuiExecutable() const override {
+         return buildRoot_ / "/examples/gui/clap-gui";
+      }
+
+      bool isValid() const noexcept { return !srcRoot_.empty() && !buildRoot_.empty(); }
+
+   private:
+      const std::filesystem::path srcRoot_;
+      const std::filesystem::path buildRoot_;
+   };
+
    std::unique_ptr<PathProvider> PathProvider::instance_;
 
    const PathProvider *PathProvider::createInstance(const std::string &pluginPath) {
       assert(!instance_);
 
 #ifdef __linux__
-      return new LinuxPathProvider(pluginPath);
+      {
+         auto ptr = std::make_unique<LinuxDevelopmentPathProvider>(pluginPath);
+         if (ptr->isValid())
+            return ptr.release();
+         return new LinuxPathProvider(pluginPath);
+      }
 #endif
 
       // TODO