Add text filtering in `vcpkg depend-info`

1 files changed, 31 insertions, 3 deletions

diff --git a/toolsrc/src/commands_depends.cpp b/toolsrc/src/commands_depends.cpp
index ccfe58e4e..2d1fb658b 100644
--- a/toolsrc/src/commands_depends.cpp
+++ b/toolsrc/src/commands_depends.cpp
@@ -4,16 +4,44 @@
 #include "vcpkg_Commands.h"
 #include "vcpkg_Strings.h"
 #include "vcpkg_System.h"
+#include "vcpkg_Util.h"
 
 namespace vcpkg::Commands::DependInfo
 {
     void perform_and_exit(const VcpkgCmdArguments& args, const VcpkgPaths& paths)
     {
-        static const std::string example = Commands::Help::create_example_string(R"###(depend-info)###");
-        args.check_exact_arg_count(0, example);
+        static const std::string example = Commands::Help::create_example_string(R"###(depend-info [pat])###");
+        args.check_max_arg_count(1, example);
         args.check_and_get_optional_command_arguments({});
 
-        const auto source_control_files = Paragraphs::load_all_ports(paths.get_filesystem(), paths.ports);
+        std::vector<std::unique_ptr<SourceControlFile>> source_control_files =
+            Paragraphs::load_all_ports(paths.get_filesystem(), paths.ports);
+
+        if (args.command_arguments.size() == 1)
+        {
+            const std::string filter = args.command_arguments.at(0);
+
+            Util::erase_remove_if(source_control_files,
+                                  [&](const std::unique_ptr<SourceControlFile>& source_control_file) {
+
+                                      const SourceParagraph& source_paragraph = *source_control_file->core_paragraph;
+
+                                      if (Strings::case_insensitive_ascii_contains(source_paragraph.name, filter))
+                                      {
+                                          return false;
+                                      }
+
+                                      for (const Dependency& dependency : source_paragraph.depends)
+                                      {
+                                          if (Strings::case_insensitive_ascii_contains(dependency.name, filter))
+                                          {
+                                              return false;
+                                          }
+                                      }
+
+                                      return true;
+                                  });
+        }
 
         for (auto&& source_control_file : source_control_files)
         {