| # Usage: cmake -P MigrateHeaders.cmake <pairs-file> |
| # <pairs-file> contains one "src|dst" pair per line. |
| # |
| # For each pair, write a forwarding stub at <dst> containing |
| # #import <WebKitLegacy/<basename>.h> |
| # This matches Xcode's MigratedHeaders build phase: the SDK iOS |
| # WebKit.framework/PrivateHeaders/ contains tiny stubs that re-export from |
| # WebKitLegacy.framework, not copies of the source content. Re-exporting |
| # avoids duplicate @interface declarations when WebKitLegacy's modulemap is |
| # loaded transitively. <src> is preserved in the pairs file only as a |
| # diagnostic marker; it is not copied. |
| |
| file(STRINGS "${CMAKE_ARGV3}" _pairs) |
| foreach (_pair IN LISTS _pairs) |
| if (NOT _pair) |
| continue () |
| endif () |
| string(REPLACE "|" ";" _pair_list "${_pair}") |
| list(GET _pair_list 0 _src) |
| list(GET _pair_list 1 _dst) |
| get_filename_component(_basename "${_src}" NAME) |
| set(_stub_content "#import <WebKitLegacy/${_basename}>\n") |
| set(_existing "") |
| if (EXISTS "${_dst}") |
| file(READ "${_dst}" _existing) |
| endif () |
| if (NOT _existing STREQUAL _stub_content) |
| # Always remove first: if the destination is (or was transiently) a symlink |
| # to a staged WebKitLegacy/WebCore header, file(WRITE) would follow the |
| # symlink chain back into the source tree and overwrite the real header. |
| file(REMOVE "${_dst}") |
| file(WRITE "${_dst}" "${_stub_content}") |
| endif () |
| endforeach () |
