Modify external builds to download archives

GIT_SHALLOW is not available until CMake 3.6. It's also considerably slower for huge repositories like curl's. PiperOrigin-RevId: 297649878

Author: wilhuff

cmake/external/curl.cmake

@@ -1,4 +1,4 @@
-# Copyright 2019 Google
+# Copyright 2019 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -18,17 +18,18 @@ if(TARGET curl OR NOT DOWNLOAD_CURL)
  return()
 endif()
 
+set(version 7_58_0)
+
 ExternalProject_Add(
  curl
 
- GIT_REPOSITORY https://github.com/curl/curl.git
- GIT_TAG curl-7_58_0
- GIT_SHALLOW 1
+ DOWNLOAD_DIR ${FIREBASE_DOWNLOAD_DIR}
+ URL https://github.com/curl/curl/archive/curl-${version}.tar.gz
 
  PREFIX ${PROJECT_BINARY_DIR}
 
  CONFIGURE_COMMAND ""
  BUILD_COMMAND ""
  INSTALL_COMMAND ""
  TEST_COMMAND ""
-)
+)

cmake/external/flatbuffers.cmake

@@ -1,4 +1,4 @@
-# Copyright 2018 Google
+# Copyright 2018 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -18,17 +18,19 @@ if(TARGET flatbuffers OR NOT DOWNLOAD_FLATBUFFERS)
  return()
 endif()
 
+set(version v1.10.0)
+
 ExternalProject_Add(
  flatbuffers
 
- GIT_REPOSITORY https://github.com/google/flatbuffers.git
- GIT_TAG v1.10.0
- GIT_SHALLOW 1
+ DOWNLOAD_DIR ${FIREBASE_DOWNLOAD_DIR}
+ DOWNLOAD_NAME flatbuffers-${version}.tar.gz
+ URL https://github.com/google/flatbuffers/archive/${version}.tar.gz
 
  PREFIX ${PROJECT_BINARY_DIR}
 
  CONFIGURE_COMMAND ""
  BUILD_COMMAND ""
  INSTALL_COMMAND ""
  TEST_COMMAND ""
-)
+)

cmake/external/libuv.cmake

@@ -1,4 +1,4 @@
-# Copyright 2019 Google
+# Copyright 2019 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -18,12 +18,14 @@ if(TARGET libuv OR NOT DOWNLOAD_LIBUV)
  return()
 endif()
 
+set(version v1.33.1)
+
 ExternalProject_Add(
  libuv
 
- GIT_REPOSITORY https://github.com/libuv/libuv
- GIT_TAG v1.33.1
- GIT_SHALLOW 1
+ DOWNLOAD_DIR ${FIREBASE_DOWNLOAD_DIR}
+ DOWNLOAD_NAME libuv-${version}.tar.gz
+ URL https://github.com/libuv/libuv/archive/${version}.tar.gz
 
  PREFIX ${PROJECT_BINARY_DIR}
 

cmake/external/uWebSockets.cmake

@@ -1,4 +1,4 @@
-# Copyright 2019 Google
+# Copyright 2019 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -18,16 +18,19 @@ if(TARGET uWebSockets OR NOT DOWNLOAD_UWEBSOCKETS)
  return()
 endif()
 
+set(commit 4d94401b9c98346f9afd838556fdc7dce30561eb)
+
 ExternalProject_Add(
  uWebSockets
 
- GIT_REPOSITORY https://github.com/uNetworking/uWebSockets
- GIT_TAG 4d94401b9c98346f9afd838556fdc7dce30561eb
+ DOWNLOAD_DIR ${FIREBASE_DOWNLOAD_DIR}
+ DOWNLOAD_NAME uWebSockets-${commit}.tar.gz
+ URL https://github.com/uNetworking/uWebSockets/archive/${commit}.tar.gz
 
  PREFIX ${PROJECT_BINARY_DIR}
 
  CONFIGURE_COMMAND ""
  BUILD_COMMAND ""
  INSTALL_COMMAND ""
  TEST_COMMAND ""
-)
+)

cmake/external/zlib.cmake

@@ -32,4 +32,4 @@ ExternalProject_Add(
  BUILD_COMMAND ""
  INSTALL_COMMAND ""
  TEST_COMMAND ""
-)
+)