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)
This commit is contained in:
Olivier Chafik 2024-04-21 18:48:53 +01:00 committed by GitHub
parent 40f74e4d73
commit 5cf5e7d490
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10 changed files with 78 additions and 7129 deletions

16
scripts/xxd.cmake Normal file
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# 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")