[vcpkg manifests] fix some issues

docs/maintainers/control-files.md

@@ -13,13 +13,14 @@ The first paragraph in a `CONTROL` file is the Source paragraph.  It must have a
 ### Examples:
 ```no-highlight
 Source: ace
-Version: 6.5.5-1
+Version: 6.5.5
 Description: The ADAPTIVE Communication Environment
 ```
 
 ```no-highlight
 Source: vtk
-Version: 8.2.0-2
+Version: 8.2.0
+Port-Version: 2
 Description: Software system for 3D computer graphics, image processing, and visualization
 Build-Depends: zlib, libpng, tiff, libxml2, jsoncpp, glew, freetype, expat, hdf5, libjpeg-turbo, proj4, lz4, libtheora, atlmfc (windows), eigen3, double-conversion, pugixml, libharu, sqlite3, netcdf-c
 ```
@@ -39,15 +40,14 @@ Package collections to check for conflicts:
 + [Packages search](https://pkgs.org/)
 
 #### Version
-The port version.
+The library version.
 
 This field is an alphanumeric string that may also contain `.`, `_`, or `-`. No attempt at ordering versions is made; all versions are treated as bit strings and are only evaluated for equality.
 
 For tagged-release ports, we follow the following convention:
 
 1. If the port follows a scheme like `va.b.c`, we remove the leading `v`. In this case, it becomes `a.b.c`.
 2. If the port includes its own name in the version like `curl-7_65_1`, we remove the leading name: `7_65_1`
-3. If the port has been modified, we append a `-N` to distinguish the versions: `1.2.1-4`
 
 For rolling-release ports, we use the date that the _commit was accessed by you_, formatted as `YYYY-MM-DD`. Stated another way: if someone had a time machine and went to that date, they would see this commit as the latest master.
 
@@ -56,11 +56,17 @@ For example, given:
 2. The current version string is `2019-02-14-1`
 3. Today's date is 2019-06-01.
 
-Then if you update the source version today, you should give it version `2019-06-01`. If you need to make a change which doesn't adjust the source version, you should give it version `2019-02-14-2`.
+Then if you update the source version today, you should give it version `2019-06-01`.
+
+#### Port-Version
+The version of the port.
+
+This field is a non-negative integer. It allows one to version the port file separately from the version of the underlying library; if you make a change to a port, without changing the underlying version of the library, you should increment this field by one (starting at `0`, which is equivalent to no `Port-Version` field). When the version of the underlying library is upgraded, this field should be set back to `0` (i.e., delete the `Port-Version` field).
 
 ##### Examples:
 ```no-highlight
-Version: 1.0.5-2
+Version: 1.0.5
+Port-Version: 2
 ```
 ```no-highlight
 Version: 2019-03-21
@@ -77,7 +83,7 @@ Description: C++ header-only JSON library
 ```
 ```no-highlight
 Description: Mosquitto is an open source message broker that implements the MQ Telemetry Transport protocol versions 3.1 and 3.1.1.
-  MQTT provides a lightweight method of carrying out messaging using a publish/subscribe model. This makes it suitable for "machine 
+  MQTT provides a lightweight method of carrying out messaging using a publish/subscribe model. This makes it suitable for "machine
   to machine" messaging such as with low power sensors or mobile devices such as phones, embedded computers or microcontrollers like the Arduino.
 ````
 

scripts/azure-pipelines/azure-pipelines.yml

@@ -11,6 +11,8 @@ stages:
   pool: $(windows-pool)
   jobs:
   - job:
+    workspace:
+      clean: resources
     steps:
     - task: Powershell@2
       displayName: 'Check C++ Formatting'
@@ -23,6 +25,8 @@ stages:
   dependsOn: []
   jobs:
   - job:
+    workspace:
+      clean: resources
     steps:
     - task: Powershell@2
       displayName: 'Check port manifest Formatting'

scripts/buildsystems/vcpkg.cmake

@@ -6,10 +6,6 @@ option(VCPKG_VERBOSE "Enables messages from the VCPKG toolchain for debugging pu
 mark_as_advanced(VCPKG_VERBOSE)
 
 function(_vcpkg_get_directory_name_of_file_above OUT DIRECTORY FILENAME)
-    if(DEFINED ${OUT})
-        return()
-    endif()
-
     set(_vcpkg_get_dir_candidate ${DIRECTORY})
     while(IS_DIRECTORY ${_vcpkg_get_dir_candidate} AND NOT DEFINED _vcpkg_get_dir_out)
         if(EXISTS ${_vcpkg_get_dir_candidate}/${FILENAME})
@@ -28,22 +24,28 @@ function(_vcpkg_get_directory_name_of_file_above OUT DIRECTORY FILENAME)
 endfunction()
 
 _vcpkg_get_directory_name_of_file_above(_VCPKG_MANIFEST_DIR ${CMAKE_CURRENT_SOURCE_DIR} "vcpkg.json")
-if(_VCPKG_MANIFEST_DIR)
-    set(_VCPKG_MANIFEST_MODE_DEFAULT ON)
-else()
-    set(_VCPKG_MANIFEST_MODE_DEFAULT OFF)
-endif()
-
-option(VCPKG_MANIFEST_MODE "Set vcpkg to manifest mode" ${_VCPKG_MANIFEST_MODE_DEFAULT})
-
-if(NOT _VCPKG_MANIFEST_DIR AND VCPKG_MANIFEST_MODE)
+if(NOT DEFINED VCPKG_MANIFEST_MODE)
+    if(_VCPKG_MANIFEST_DIR)
+        set(VCPKG_MANIFEST_MODE ON)
+    else()
+        set(VCPKG_MANIFEST_MODE OFF)
+    endif()
+elseif(VCPKG_MANIFEST_MODE AND NOT _VCPKG_MANIFEST_DIR)
     message(FATAL_ERROR
         "vcpkg manifest mode was enabled, but we couldn't find a manifest file (vcpkg.json) "
         "in any directories above ${CMAKE_CURRENT_SOURCE_DIR}. Please add a manifest, or "
         "disable manifests by turning off VCPKG_MANIFEST_MODE.")
 endif()
 
-option(VCPKG_MANIFEST_INSTALL "Install packages from the manifest" ON)
+if(VCPKG_MANIFEST_MODE)
+    option(VCPKG_MANIFEST_INSTALL
+[[
+Install the dependencies listed in your manifest:
+    If this is off, you will have to manually install your dependencies.
+    See https://github.com/microsoft/vcpkg/tree/master/docs/specifications/manifests.md for more info.
+]]
+        ON)
+endif()
 
 # Determine whether the toolchain is loaded during a try-compile configuration
 get_property(_CMAKE_IN_TRY_COMPILE GLOBAL PROPERTY IN_TRY_COMPILE)
@@ -198,7 +200,7 @@ endif()
 
 if (NOT DEFINED _VCPKG_INSTALLED_DIR)
     if(_VCPKG_MANIFEST_DIR)
-        set(_VCPKG_INSTALLED_DIR ${_VCPKG_MANIFEST_DIR}/vcpkg_installed)
+        set(_VCPKG_INSTALLED_DIR ${CMAKE_BINARY_DIR}/vcpkg_installed)
     else()
         set(_VCPKG_INSTALLED_DIR ${_VCPKG_ROOT_DIR}/installed)
     endif()
@@ -230,11 +232,11 @@ else() #Release build: Put Release paths before Debug paths. Debug Paths are req
     )
 endif()
 
-# If one CMAKE_FIND_ROOT_PATH_MODE_* variables is set to ONLY, to  make sure that ${_VCPKG_INSTALLED_DIR}/${VCPKG_TARGET_TRIPLET} 
+# If one CMAKE_FIND_ROOT_PATH_MODE_* variables is set to ONLY, to  make sure that ${_VCPKG_INSTALLED_DIR}/${VCPKG_TARGET_TRIPLET}
 # and ${_VCPKG_INSTALLED_DIR}/${VCPKG_TARGET_TRIPLET}/debug are searched, it is not sufficient to just add them to CMAKE_FIND_ROOT_PATH,
-# as CMAKE_FIND_ROOT_PATH specify "one or more directories to be prepended to all other search directories", so to make sure that 
+# as CMAKE_FIND_ROOT_PATH specify "one or more directories to be prepended to all other search directories", so to make sure that
 # the libraries are searched as they are, it is necessary to add "/" to the CMAKE_PREFIX_PATH
-if(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE STREQUAL "ONLY" OR 
+if(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE STREQUAL "ONLY" OR
    CMAKE_FIND_ROOT_PATH_MODE_LIBRARY STREQUAL "ONLY" OR
    CMAKE_FIND_ROOT_PATH_MODE_PACKAGE STREQUAL "ONLY")
    list(APPEND CMAKE_PREFIX_PATH "/")
@@ -280,23 +282,45 @@ endforeach()
 
 # CMAKE_EXECUTABLE_SUFFIX is not yet defined
 if (CMAKE_HOST_SYSTEM_NAME STREQUAL "Windows")
-    set(_VCPKG_EXECUTABLE_SUFFIX ".exe")
+    set(_VCPKG_EXECUTABLE "${_VCPKG_ROOT_DIR}/vcpkg.exe")
+    set(_VCPKG_BOOTSTRAP_SCRIPT "${_VCPKG_ROOT_DIR}/bootstrap-vcpkg.bat")
 else()
-    set(_VCPKG_EXECUTABLE_SUFFIX "")
+    set(_VCPKG_EXECUTABLE "${_VCPKG_ROOT_DIR}/vcpkg")
+    set(_VCPKG_BOOTSTRAP_SCRIPT "${_VCPKG_ROOT_DIR}/bootstrap-vcpkg.sh")
 endif()
 
 if(VCPKG_MANIFEST_MODE AND VCPKG_MANIFEST_INSTALL AND NOT _CMAKE_IN_TRY_COMPILE)
+    if(NOT EXISTS "${_VCPKG_EXECUTABLE}")
+        message(STATUS "Bootstrapping vcpkg before install")
+
+        execute_process(
+            COMMAND "${_VCPKG_BOOTSTRAP_SCRIPT}"
+            RESULT_VARIABLE _VCPKG_BOOTSTRAP_RESULT)
+
+        if (NOT _VCPKG_BOOTSTRAP_RESULT EQUAL 0)
+            message(FATAL_ERROR "Bootstrapping vcpkg before install - failed")
+        endif()
+
+        message(STATUS "Bootstrapping vcpkg before install - done")
+    endif()
+
+    message(STATUS "Running vcpkg install")
+
     execute_process(
-        COMMAND "${_VCPKG_ROOT_DIR}/vcpkg${_VCPKG_EXECUTABLE_SUFFIX}" install
+        COMMAND "${_VCPKG_EXECUTABLE}" install
             --triplet ${VCPKG_TARGET_TRIPLET}
             --vcpkg-root ${_VCPKG_ROOT_DIR}
             --x-manifest-root=${_VCPKG_MANIFEST_DIR}
             --x-install-root=${_VCPKG_INSTALLED_DIR}
             --binarycaching
         RESULT_VARIABLE _VCPKG_INSTALL_RESULT)
+
     if (NOT _VCPKG_INSTALL_RESULT EQUAL 0)
-        message(FATAL_ERROR "vcpkg install failed")
+        message(FATAL_ERROR "Running vcpkg install - failed")
     endif()
+
+    message(STATUS "Running vcpkg install - done")
+
     set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS
         "${_VCPKG_MANIFEST_DIR}/vcpkg.json"
         "${_VCPKG_INSTALLED_DIR}/vcpkg/status")

toolsrc/include/vcpkg/base/files.h

@@ -190,6 +190,9 @@ namespace vcpkg::Files
         virtual void current_path(const fs::path& path, std::error_code&) = 0;
         void current_path(const fs::path& path, LineInfo li);
 
+        // waits forever for the file lock
+        virtual fs::SystemHandle take_exclusive_file_lock(const fs::path& path, std::error_code&) = 0;
+        // waits, at most, 1.5 seconds, for the file lock
         virtual fs::SystemHandle try_take_exclusive_file_lock(const fs::path& path, std::error_code&) = 0;
         virtual void unlock_file_lock(fs::SystemHandle handle, std::error_code&) = 0;
 

toolsrc/include/vcpkg/vcpkgcmdarguments.h

@@ -149,6 +149,9 @@ namespace vcpkg
         constexpr static StringLiteral PRINT_METRICS_SWITCH = "printmetrics";
         Optional<bool> print_metrics = nullopt;
 
+        constexpr static StringLiteral WAIT_FOR_LOCK_SWITCH = "x-wait-for-lock";
+        Optional<bool> wait_for_lock = nullopt;
+
         // feature flags
         constexpr static StringLiteral FEATURE_FLAGS_ENV = "VCPKG_FEATURE_FLAGS";
         constexpr static StringLiteral FEATURE_FLAGS_ARG = "feature-flags";
@@ -175,6 +178,7 @@ namespace vcpkg
 
         void check_feature_flag_consistency() const;
 
+        void debug_print_feature_flags() const;
         void track_feature_flag_metrics() const;
 
     private:

toolsrc/include/vcpkg/versiont.h

@@ -6,18 +6,19 @@ namespace vcpkg
     struct VersionT
     {
         VersionT() noexcept;
-        VersionT(std::string&& value);
-        VersionT(const std::string& value);
+        VersionT(std::string&& value, int port_version);
+        VersionT(const std::string& value, int port_version);
 
-        const std::string& to_string() const;
+        std::string to_string() const;
+
+        friend bool operator==(const VersionT& left, const VersionT& right);
+        friend bool operator!=(const VersionT& left, const VersionT& right);
 
     private:
         std::string value;
+        int port_version;
     };
 
-    bool operator==(const VersionT& left, const VersionT& right);
-    bool operator!=(const VersionT& left, const VersionT& right);
-
     struct VersionDiff
     {
         VersionT left;

toolsrc/src/vcpkg.cpp

@@ -250,6 +250,7 @@ int main(const int argc, const char* const* const argv)
                        "Warning: passed either --printmetrics or --no-printmetrics, but metrics are disabled.\n");
     }
 
+    args.debug_print_feature_flags();
     args.track_feature_flag_metrics();
 
     if (Debug::g_debugging)