build: unset variables ending with "URL" if USE_EXISTING_SRC_DIR is ON

This will reduce required boilerplate, but more importantly it will
automatically unset variables ending on URL. This will help people
needing to avoid to unset the URL variable each time a new dependency is
added.

It is possible that this may remove a non-download variable ending on
"URL" in the future, however, the risk of this is likely much lower than
the risk of someone forgetting to unset the variable.

15 files changed, 9 insertions, 45 deletions

diff --git a/cmake.deps/CMakeLists.txt b/cmake.deps/CMakeLists.txt
index 12fa94c1c9..57b10b59c1 100644
--- a/cmake.deps/CMakeLists.txt
+++ b/cmake.deps/CMakeLists.txt
@@ -196,6 +196,15 @@ set(TREESITTER_QUERY_SHA256 2f2c79a59e3ff550aef849925e589d69b8a146b3af935504366c
 set(TREESITTER_URL https://github.com/tree-sitter/tree-sitter/archive/c51896d32dcc11a38e41f36e3deb1a6a9c4f4b14.tar.gz)
 set(TREESITTER_SHA256 243e07541a9dd71681984b65bffed2d4a259bef0a4ad28cff55cc1c6878b8d18)
 
+if(USE_EXISTING_SRC_DIR)
+  get_cmake_property(VARS VARIABLES)
+  foreach (VAR ${VARS})
+    if(VAR MATCHES "^.*URL$")
+      unset(${VAR})
+    endif()
+  endforeach()
+endif()
+
 if(USE_BUNDLED_UNIBILIUM)
   include(BuildUnibilium)
 endif()
diff --git a/cmake.deps/cmake/BuildGettext.cmake b/cmake.deps/cmake/BuildGettext.cmake
index 7db7d5e4fe..b6411a2617 100644
--- a/cmake.deps/cmake/BuildGettext.cmake
+++ b/cmake.deps/cmake/BuildGettext.cmake
@@ -1,7 +1,4 @@
 if(MSVC)
-  if(USE_EXISTING_SRC_DIR)
-    unset(GETTEXT_URL)
-  endif()
   ExternalProject_Add(gettext
     URL ${GETTEXT_URL}
     URL_HASH SHA256=${GETTEXT_SHA256}
diff --git a/cmake.deps/cmake/BuildLibiconv.cmake b/cmake.deps/cmake/BuildLibiconv.cmake
index 244cf030ae..000b42cf06 100644
--- a/cmake.deps/cmake/BuildLibiconv.cmake
+++ b/cmake.deps/cmake/BuildLibiconv.cmake
@@ -1,7 +1,4 @@
 if(MSVC)
-  if(USE_EXISTING_SRC_DIR)
-    unset(LIBICONV_URL)
-  endif()
   ExternalProject_Add(libiconv
     URL ${LIBICONV_URL}
     URL_HASH SHA256=${LIBICONV_SHA256}
diff --git a/cmake.deps/cmake/BuildLibtermkey.cmake b/cmake.deps/cmake/BuildLibtermkey.cmake
index e137faaa0c..0f10c98194 100644
--- a/cmake.deps/cmake/BuildLibtermkey.cmake
+++ b/cmake.deps/cmake/BuildLibtermkey.cmake
@@ -1,6 +1,3 @@
-if(USE_EXISTING_SRC_DIR)
-  unset(LIBTERMKEY_URL)
-endif()
 ExternalProject_Add(libtermkey
   URL ${LIBTERMKEY_URL}
   URL_HASH SHA256=${LIBTERMKEY_SHA256}
diff --git a/cmake.deps/cmake/BuildLibuv.cmake b/cmake.deps/cmake/BuildLibuv.cmake
index 3c678c0877..a35b5a16f3 100644
--- a/cmake.deps/cmake/BuildLibuv.cmake
+++ b/cmake.deps/cmake/BuildLibuv.cmake
@@ -1,6 +1,3 @@
-if(USE_EXISTING_SRC_DIR)
-  unset(LIBUV_URL)
-endif()
 ExternalProject_Add(libuv
   URL ${LIBUV_URL}
   URL_HASH SHA256=${LIBUV_SHA256}
diff --git a/cmake.deps/cmake/BuildLibvterm.cmake b/cmake.deps/cmake/BuildLibvterm.cmake
index c86a798a57..aaeabe88d5 100644
--- a/cmake.deps/cmake/BuildLibvterm.cmake
+++ b/cmake.deps/cmake/BuildLibvterm.cmake
@@ -1,6 +1,3 @@
-if(USE_EXISTING_SRC_DIR)
-  unset(LIBVTERM_URL)
-endif()
 ExternalProject_Add(libvterm
   URL ${LIBVTERM_URL}
   URL_HASH SHA256=${LIBVTERM_SHA256}
diff --git a/cmake.deps/cmake/BuildLua.cmake b/cmake.deps/cmake/BuildLua.cmake
index c819b8661a..9cc2202e84 100644
--- a/cmake.deps/cmake/BuildLua.cmake
+++ b/cmake.deps/cmake/BuildLua.cmake
@@ -42,9 +42,6 @@ set(LUA_INSTALL_TOP_ARG "INSTALL_TOP=${DEPS_INSTALL_DIR}")
 
 message(STATUS "Lua target is ${LUA_TARGET}")
 
-if(USE_EXISTING_SRC_DIR)
-  unset(LUA_URL)
-endif()
 ExternalProject_Add(lua
   URL ${LUA_URL}
   URL_HASH SHA256=${LUA_SHA256}
diff --git a/cmake.deps/cmake/BuildLuajit.cmake b/cmake.deps/cmake/BuildLuajit.cmake
index 0c882d5fd2..562067770c 100644
--- a/cmake.deps/cmake/BuildLuajit.cmake
+++ b/cmake.deps/cmake/BuildLuajit.cmake
@@ -15,9 +15,6 @@ function(BuildLuajit)
     set(_luajit_TARGET "luajit")
   endif()
 
-  if(USE_EXISTING_SRC_DIR)
-    unset(LUAJIT_URL)
-  endif()
   ExternalProject_Add(${_luajit_TARGET}
     URL ${LUAJIT_URL}
     URL_HASH SHA256=${LUAJIT_SHA256}
diff --git a/cmake.deps/cmake/BuildLuarocks.cmake b/cmake.deps/cmake/BuildLuarocks.cmake
index ad0ee3f661..1f1bb94741 100644
--- a/cmake.deps/cmake/BuildLuarocks.cmake
+++ b/cmake.deps/cmake/BuildLuarocks.cmake
@@ -81,9 +81,6 @@ else()
   message(FATAL_ERROR "Trying to build luarocks in an unsupported system ${CMAKE_SYSTEM_NAME}/${CMAKE_C_COMPILER_ID}")
 endif()
 
-if(USE_EXISTING_SRC_DIR)
-  unset(LUAROCKS_URL)
-endif()
 ExternalProject_Add(luarocks
   URL ${LUAROCKS_URL}
   URL_HASH SHA256=${LUAROCKS_SHA256}
diff --git a/cmake.deps/cmake/BuildLuv.cmake b/cmake.deps/cmake/BuildLuv.cmake
index c5f38fe68b..eda3934bee 100644
--- a/cmake.deps/cmake/BuildLuv.cmake
+++ b/cmake.deps/cmake/BuildLuv.cmake
@@ -33,9 +33,6 @@ if(CMAKE_GENERATOR MATCHES "Unix Makefiles" AND
     list(APPEND LUV_CMAKE_ARGS -D CMAKE_MAKE_PROGRAM=gmake)
 endif()
 
-if(USE_EXISTING_SRC_DIR)
-  unset(LUA_COMPAT53_URL)
-endif()
 ExternalProject_Add(lua-compat-5.3
   URL ${LUA_COMPAT53_URL}
   URL_HASH SHA256=${LUA_COMPAT53_SHA256}
@@ -45,9 +42,6 @@ ExternalProject_Add(lua-compat-5.3
   BUILD_COMMAND ""
   INSTALL_COMMAND "")
 
-if(USE_EXISTING_SRC_DIR)
-  unset(LUV_URL)
-endif()
 ExternalProject_Add(luv-static
   DEPENDS lua-compat-5.3
   URL ${LUV_URL}
diff --git a/cmake.deps/cmake/BuildMsgpack.cmake b/cmake.deps/cmake/BuildMsgpack.cmake
index ef7568ae0a..82993c265d 100644
--- a/cmake.deps/cmake/BuildMsgpack.cmake
+++ b/cmake.deps/cmake/BuildMsgpack.cmake
@@ -1,6 +1,3 @@
-if(USE_EXISTING_SRC_DIR)
-  unset(MSGPACK_URL)
-endif()
 ExternalProject_Add(msgpack
   URL ${MSGPACK_URL}
   URL_HASH SHA256=${MSGPACK_SHA256}
diff --git a/cmake.deps/cmake/BuildTreesitter.cmake b/cmake.deps/cmake/BuildTreesitter.cmake
index 5b3e3497ad..837c1cbcb7 100644
--- a/cmake.deps/cmake/BuildTreesitter.cmake
+++ b/cmake.deps/cmake/BuildTreesitter.cmake
@@ -1,6 +1,3 @@
-if(USE_EXISTING_SRC_DIR)
-  unset(TREESITTER_URL)
-endif()
 ExternalProject_Add(tree-sitter
   URL ${TREESITTER_URL}
   URL_HASH SHA256=${TREESITTER_SHA256}
diff --git a/cmake.deps/cmake/BuildTreesitterParsers.cmake b/cmake.deps/cmake/BuildTreesitterParsers.cmake
index 774fc8a8c3..1c5d69882d 100644
--- a/cmake.deps/cmake/BuildTreesitterParsers.cmake
+++ b/cmake.deps/cmake/BuildTreesitterParsers.cmake
@@ -1,8 +1,5 @@
 function(BuildTSParser LANG TS_URL TS_SHA256 TS_CMAKE_FILE)
   set(NAME treesitter-${LANG})
-  if(USE_EXISTING_SRC_DIR)
-    unset(TS_URL)
-  endif()
   ExternalProject_Add(${NAME}
     URL ${TS_URL}
     URL_HASH SHA256=${TS_SHA256}
diff --git a/cmake.deps/cmake/BuildUnibilium.cmake b/cmake.deps/cmake/BuildUnibilium.cmake
index a51e0cd8f1..8f27bd52a8 100644
--- a/cmake.deps/cmake/BuildUnibilium.cmake
+++ b/cmake.deps/cmake/BuildUnibilium.cmake
@@ -1,6 +1,3 @@
-if(USE_EXISTING_SRC_DIR)
-  unset(UNIBILIUM_URL)
-endif()
 ExternalProject_Add(unibilium
   URL ${UNIBILIUM_URL}
   URL_HASH SHA256=${UNIBILIUM_SHA256}
diff --git a/cmake.deps/cmake/GetBinaryDeps.cmake b/cmake.deps/cmake/GetBinaryDeps.cmake
index d1406350dd..a90a076e33 100644
--- a/cmake.deps/cmake/GetBinaryDeps.cmake
+++ b/cmake.deps/cmake/GetBinaryDeps.cmake
@@ -22,9 +22,6 @@ function(GetBinaryDep)
     message(FATAL_ERROR "${URL_VARNAME} and ${HASH_VARNAME} must be set")
   endif()
 
-  if(USE_EXISTING_SRC_DIR)
-    unset(URL)
-  endif()
   ExternalProject_Add(${_gettool_TARGET}
     URL ${URL}
     URL_HASH SHA256=${HASH}