From 592a6017bc08d453a9a58c97a8f568105b31bdbb Mon Sep 17 00:00:00 2001
From: Mike Taves <mwtoews@gmail.com>
Date: Sun, 9 May 2021 00:09:56 +1200
Subject: CMake: "make dist" workalike via CPack (#2690)

---
 cmake/Makefile.am      |  1 +
 cmake/ProjReadme.cmake | 28 ++++++++++++++++++++++++++++
 2 files changed, 29 insertions(+)
 create mode 100644 cmake/ProjReadme.cmake

(limited to 'cmake')

diff --git a/cmake/Makefile.am b/cmake/Makefile.am
index 1ecd784e..cdad1ff8 100644
--- a/cmake/Makefile.am
+++ b/cmake/Makefile.am
@@ -4,6 +4,7 @@ EXTRA_DIST = CMakeLists.txt \
 			proj_config.cmake.in \
 			ProjConfig.cmake \
 			ProjMac.cmake \
+			ProjReadme.cmake \
 			ProjTest.cmake \
 			ProjVersion.cmake \
 			policies.cmake \
diff --git a/cmake/ProjReadme.cmake b/cmake/ProjReadme.cmake
new file mode 100644
index 00000000..7071a381
--- /dev/null
+++ b/cmake/ProjReadme.cmake
@@ -0,0 +1,28 @@
+#
+# CMake script to modify README.md to create simpler README file
+#
+# This is equivalent to: fgrep -v "[!["
+#
+
+set(SourceFile "${PROJ_SOURCE_DIR}/README.md")
+set(DestFile "${PROJ_SOURCE_DIR}/README")
+
+# Below is based on https://stackoverflow.com/a/30227627
+
+file(READ ${SourceFile} Contents)
+
+# Set the variable "Esc" to the ASCII value 27 as a special escape value
+string(ASCII 27 Esc)
+
+# Turn the contents into a list of strings, each ending with Esc
+string(REGEX REPLACE "\n" "${Esc};" ContentsAsList "${Contents}")
+
+unset(ModifiedContents)
+foreach(Line ${ContentsAsList})
+  if(NOT "${Line}" MATCHES "\\[!\\[")
+    # Swap the appended Esc character back out in favour of a line feed
+    string(REGEX REPLACE "${Esc}" "\n" Line ${Line})
+    set(ModifiedContents "${ModifiedContents}${Line}")
+  endif()
+endforeach()
+file(WRITE ${DestFile} ${ModifiedContents})
-- 
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