From 5cf5e7d490dfdd2e70bface2d35dfd14aa44b4fb Mon Sep 17 00:00:00 2001
From: Olivier Chafik <ochafik@users.noreply.github.com>
Date: Sun, 21 Apr 2024 18:48:53 +0100
Subject: `build`: generate hex dump of server assets during build (#6661)

* `build`: generate hex dumps of server assets on the fly

* build: workaround lack of -n on gnu xxd

* build: don't use xxd in cmake

* build: don't call xxd from build.zig

* build: more idiomatic hexing

* build: don't use xxd in Makefile (od hackery instead)

* build: avoid exceeding max cmd line limit in makefile hex dump

* build: hex dump assets at cmake build time (not config time)
---
 scripts/xxd.cmake | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 scripts/xxd.cmake

(limited to 'scripts')

diff --git a/scripts/xxd.cmake b/scripts/xxd.cmake
new file mode 100644
index 00000000..f5ad6ab9
--- /dev/null
+++ b/scripts/xxd.cmake
@@ -0,0 +1,16 @@
+# CMake equivalent of `xxd -i ${INPUT} ${OUTPUT}`
+# Usage: cmake -DINPUT=examples/server/public/index.html -DOUTPUT=examples/server/index.html.hpp -P scripts/xxd.cmake
+
+SET(INPUT "" CACHE STRING "Input File")
+SET(OUTPUT "" CACHE STRING "Output File")
+
+get_filename_component(filename "${INPUT}" NAME)
+string(REGEX REPLACE "\\.|-" "_" name "${filename}")
+
+file(READ "${INPUT}" hex_data HEX)
+string(REGEX REPLACE "([0-9a-f][0-9a-f])" "0x\\1," hex_sequence "${hex_data}")
+
+string(LENGTH ${hex_data} hex_len)
+math(EXPR len "${hex_len} / 2")
+
+file(WRITE "${OUTPUT}" "unsigned char ${name}[] = {${hex_sequence}};\nunsigned int ${name}_len = ${len};\n")
-- 
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