4 files changed, 181 insertions, 0 deletions

diff --git a/cmake/addons/bootstrap/Bootstrap.cmake b/cmake/addons/bootstrap/Bootstrap.cmake
new file mode 100644
index 0000000..5d20302
--- /dev/null
+++ b/cmake/addons/bootstrap/Bootstrap.cmake
@@ -0,0 +1,39 @@
+list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR})
+
+# make sure that the installation location has been specified
+if(NOT CMAKE_INSTALL_PREFIX)
+  message(FATAL_ERROR "CMAKE_INSTALL_PREFIX has not been specified")
+endif()
+
+# figure out which addons to bootstrap (defaults to all)
+if(NOT ADDONS_TO_BUILD)
+  set(ADDONS_TO_BUILD "all")
+else()
+  string(STRIP "${ADDONS_TO_BUILD}" ADDONS_TO_BUILD)
+  message(STATUS "Bootstrapping following addons: ${ADDONS_TO_BUILD}")
+  string(REPLACE " " ";" ADDONS_TO_BUILD ${ADDONS_TO_BUILD})
+endif()
+
+# find all addon definitions and go through them
+file(GLOB_RECURSE ADDON_DEFINITIONS ${PROJECT_SOURCE_DIR}/*.txt)
+foreach(ADDON_DEFINITION_FILE ${ADDON_DEFINITIONS})
+  # ignore platforms.txt
+  if(NOT (ADDON_DEFINITION_FILE MATCHES platforms.txt))
+    # read the addon definition file
+    file(STRINGS ${ADDON_DEFINITION_FILE} ADDON_DEFINITION)
+    string(REPLACE " " ";" ADDON_DEFINITION ${ADDON_DEFINITION})
+
+    # extract the addon definition's identifier
+    list(GET ADDON_DEFINITION 0 ADDON_ID)
+
+    # check if the addon definition should be built
+    if(ADDON_ID MATCHES "^${ADDONS_TO_BUILD}" OR ADDONS_TO_BUILD STREQUAL all)
+      # get the path to the addon definition directory
+      get_filename_component(ADDON_DEFINITION_DIR ${ADDON_DEFINITION_FILE} DIRECTORY)
+
+      # install the addon definition
+      message(STATUS "Bootstrapping ${ADDON_ID} addon...")
+      file(INSTALL ${ADDON_DEFINITION_DIR} DESTINATION ${CMAKE_INSTALL_PREFIX})
+    endif()
+  endif()
+endforeach()
diff --git a/cmake/addons/bootstrap/CMakeLists.txt b/cmake/addons/bootstrap/CMakeLists.txt
new file mode 100644
index 0000000..66b7e3d
--- /dev/null
+++ b/cmake/addons/bootstrap/CMakeLists.txt
@@ -0,0 +1,93 @@
+cmake_minimum_required(VERSION 3.1)
+project(kodi-addons-bootstrap)
+
+list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR})
+
+# make sure CMAKE_INSTALL_PREFIX is properly set
+if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT OR NOT CMAKE_INSTALL_PREFIX)
+  set(CMAKE_INSTALL_PREFIX "${PROJECT_SOURCE_DIR}/../addons")
+endif()
+list(APPEND CMAKE_PREFIX_PATH ${CMAKE_INSTALL_PREFIX})
+
+# figure out where the build directory is located
+if(NOT BUILD_DIR)
+  set(BUILD_DIR "${CMAKE_BINARY_DIR}/build")
+else()
+  file(TO_CMAKE_PATH "${BUILD_DIR}" BUILD_DIR)
+endif()
+get_filename_component(BUILD_DIR "${BUILD_DIR}" ABSOLUTE)
+
+# make sure that the repositories to build have been specified
+if(NOT REPOSITORY_TO_BUILD)
+  set(REPOSITORY_TO_BUILD_DEFAULT ON)
+  set(REPOSITORY_TO_BUILD "all")
+  set(REPOSITORY_REVISION "")
+  message(STATUS "Bootstrapping all repositories")
+else()
+  set(REPOSITORY_TO_BUILD_DEFAULT OFF)
+  message(STATUS "Bootstrapping following repository: ${REPOSITORY_TO_BUILD}")
+endif()
+
+# figure out which addons to bootstrap (defaults to all)
+if(NOT ADDONS_TO_BUILD)
+  set(ADDONS_TO_BUILD "all")
+  message(STATUS "Bootstrapping all addons")
+else()
+  message(STATUS "Bootstrapping following addons: ${ADDONS_TO_BUILD}")
+endif()
+
+include(ExternalProject)
+
+function(bootstrap_repo repo_id repo_url repo_revision)
+  message(STATUS "Bootstrapping addons from ${repo_id} (${repo_url} ${repo_revision})...")
+  externalproject_add(${repo_id}
+                      GIT_REPOSITORY ${repo_url}
+                      GIT_TAG ${repo_revision}
+                      PREFIX ${BUILD_DIR}/${repo_id}
+                      CONFIGURE_COMMAND ""
+                      BUILD_COMMAND ""
+                      INSTALL_COMMAND ${CMAKE_COMMAND}
+                                      -DCMAKE_PREFIX_PATH=${CMAKE_PREFIX_PATH}
+                                      -DPROJECT_SOURCE_DIR=<SOURCE_DIR>
+                                      -DCMAKE_INSTALL_PREFIX=${CMAKE_INSTALL_PREFIX}
+                                      -P ${PROJECT_SOURCE_DIR}/Bootstrap.cmake
+                      )
+endfunction()
+
+# look for all addons repository definitions
+set(REPOSITORY_TO_BUILD_FOUND OFF)
+file(GLOB repos repositories/*.txt)
+foreach(repo ${repos})
+  file(STRINGS ${repo} repo_definition)
+  string(REPLACE " " ";" repo_definition ${repo_definition})
+  list(GET repo_definition 0 repo_id)
+
+  list(FIND REPOSITORY_TO_BUILD ${repo_id} idx)
+  if(idx GREATER -1 OR REPOSITORY_TO_BUILD STREQUAL "all")
+    set(REPOSITORY_TO_BUILD_FOUND ON)
+
+    # get the URL of the repository
+    list(GET repo_definition 1 repo_url)
+
+    # get the revision of the repository if not provided as an argument
+    if(NOT REPOSITORY_REVISION)
+      list(GET repo_definition 2 repo_revision)
+    else()
+      set(repo_revision "${REPOSITORY_REVISION}")
+    endif()
+
+    bootstrap_repo(${repo_id} ${repo_url} ${repo_revision})
+  endif()
+endforeach()
+
+# if we have been asked to bootstrap a specific repository (not the default one) and
+# it couldn't be found in the predefined repository definitions we assume that it's a
+# URL to a specific repository
+if(NOT REPOSITORY_TO_BUILD_DEFAULT AND NOT REPOSITORY_TO_BUILD_FOUND)
+  # default to the master branch if no revision has been provided
+  if(NOT REPOSITORY_REVISION)
+    set(REPOSITORY_REVISION "master")
+  endif()
+
+  bootstrap_repo(binary-addons-custom ${REPOSITORY_TO_BUILD} ${REPOSITORY_REVISION})
+endif()
diff --git a/cmake/addons/bootstrap/README.md b/cmake/addons/bootstrap/README.md
new file mode 100644
index 0000000..b886b5b
--- /dev/null
+++ b/cmake/addons/bootstrap/README.md
@@ -0,0 +1,48 @@
+# KODI ADDON DEFINITIONS BOOTSTRAPPING
+This directory contains the cmake-based buildsystem for addon definitions
+bootstrapping which downloads the addon definitions from one or more addon
+definitions repositories. These addon definitions are then used by the addon
+buildsystem to figure out which addons and which versions to build. It looks
+into the "repositories" sub-directory and parses all *.txt files recursively.
+Each addon definitions repository must have its own <repository>.txt file which
+must follow the following defined format:
+```
+<repository> <git-url> <git-revision>
+```
+where
+* `<repository>` is the identification of the repository.
+* `<git-url>` must be the URL of the git repository containing the addon
+    definitions
+* `<git-revision>` must be a valid git tag/branch/commit in the addon
+    definitions repository's git repository which will be used for the build
+
+The buildsystem uses the following variables (which can be passed into it when
+executing cmake with the `-D<variable-name>=<value>` option):
+* `CMAKE_INSTALL_PREFIX` points to the directory where the downloaded addon
+definitions will be installed to (defaults to `../addons`).
+* `BUILD_DIR` points to the directory where the addon definitions repositories
+will be downloaded to.
+* `REPOSITORY_TO_BUILD` specifies a single addon definitions repository to be
+downloaded and processed (defaults to `"all"`).
+* `REPOSITORY_REVISION` specifies the git revision in the addon definitions
+repository which will be used for the build. This option is only valid in
+combination with the `REPOSITORY_TO_BUILD` option (defaults to the git
+revision specified in the repository's definition file).
+* `ADDONS_TO_BUILD` is a quoted, space delimited list of `<addon-id>`s that
+should be bootstrapped (default is `"all"`).
+
+To trigger the cmake-based buildsystem the following command must be executed
+with <path> being the path to this directory (absolute or relative, allowing for
+in-source and out-of-source builds).
+```
+cmake <path> -G <generator>
+```
+
+cmake supports multiple generators, see
+http://www.cmake.org/cmake/help/v2.8.8/cmake.html#section_Generators for a list.
+
+In case of additional options the call might look like this
+```
+cmake <path> [-G <generator>] \
+      -DCMAKE_INSTALL_PREFIX="<path-to-install-directory>"
+```
\ No newline at end of file
diff --git a/cmake/addons/bootstrap/repositories/binary-addons.txt b/cmake/addons/bootstrap/repositories/binary-addons.txt
new file mode 100644
index 0000000..8674f06
--- /dev/null
+++ b/cmake/addons/bootstrap/repositories/binary-addons.txt
@@ -0,0 +1 @@
+binary-addons https://github.com/xbmc/repo-binary-addons.git master
\ No newline at end of file