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cmake: generate the shell/perl/python scripts and templates, translations

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Implement the placeholder substitution to generate scripted
Porcelain commands, e.g. git-request-pull out of
git-request-pull.sh

Generate shell/perl/python scripts and template using CMake instead of
using sed like the build procedure in the Makefile does.

The text translations are only build if `msgfmt` is found in your path.

NOTE: The scripts and templates are generated during configuration.

Signed-off-by: Sibi Siddharthan <sibisiddharthan.github@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Sibi Siddharthan 2020-06-26 16:11:32 +00:00 committed by Junio C Hamano
parent 061c2240b1
commit afa45fe5c0
1 changed files with 110 additions and 1 deletions
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111
contrib/buildsystems/CMakeLists.txt
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@ -66,7 +66,7 @@ project(git
LANGUAGES C)
#macros for parsing the Makefile for sources
#macros for parsing the Makefile for sources and scripts
macro(parse_makefile_for_sources list_var regex)
file(STRINGS ${CMAKE_SOURCE_DIR}/Makefile ${list_var} REGEX "^${regex} \\+=(.*)")
string(REPLACE "${regex} +=" "" ${list_var} ${${list_var}})
@ -77,6 +77,16 @@ macro(parse_makefile_for_sources list_var regex)
list(REMOVE_ITEM ${list_var} "") #remove empty list elements
endmacro()
macro(parse_makefile_for_scripts list_var regex lang)
file(STRINGS ${CMAKE_SOURCE_DIR}/Makefile ${list_var} REGEX "^${regex} \\+=(.*)")
string(REPLACE "${regex} +=" "" ${list_var} ${${list_var}})
string(STRIP ${${list_var}} ${list_var}) #remove trailing/leading whitespaces
string(REPLACE " " ";" ${list_var} ${${list_var}}) #convert string to a list
if(NOT ${lang}) #exclude for SCRIPT_LIB
list(TRANSFORM ${list_var} REPLACE "${lang}" "") #do the replacement
endif()
endmacro()
include(CheckTypeSize)
include(CheckCSourceRuns)
include(CheckCSourceCompiles)
@ -112,6 +122,11 @@ if(Intl_FOUND)
include_directories(SYSTEM ${Intl_INCLUDE_DIRS})
endif()
find_program(MSGFMT_EXE msgfmt)
if(NOT MSGFMT_EXE)
message(WARNING "Text Translations won't be build")
endif()
#default behaviour
include_directories(${CMAKE_SOURCE_DIR})
add_compile_definitions(GIT_HOST_CPU="${CMAKE_SYSTEM_PROCESSOR}")
@ -590,3 +605,97 @@ add_custom_command(OUTPUT ${git_links} ${git_http_links}
COMMAND ${CMAKE_COMMAND} -P ${CMAKE_BINARY_DIR}/CreateLinks.cmake
DEPENDS git git-remote-http)
add_custom_target(git-links ALL DEPENDS ${git_links} ${git_http_links})
#creating required scripts
set(SHELL_PATH /bin/sh)
set(PERL_PATH /usr/bin/perl)
set(LOCALEDIR ${FALLBACK_RUNTIME_PREFIX}/share/locale)
set(GITWEBDIR ${FALLBACK_RUNTIME_PREFIX}/share/locale)
set(INSTLIBDIR ${FALLBACK_RUNTIME_PREFIX}/share/perl5)
#shell scripts
parse_makefile_for_scripts(git_sh_scripts "SCRIPT_SH" ".sh")
parse_makefile_for_scripts(git_shlib_scripts "SCRIPT_LIB" "")
set(git_shell_scripts
${git_sh_scripts} ${git_shlib_scripts} git-instaweb)
foreach(script ${git_shell_scripts})
file(STRINGS ${CMAKE_SOURCE_DIR}/${script}.sh content NEWLINE_CONSUME)
string(REPLACE "@SHELL_PATH@" "${SHELL_PATH}" content "${content}")
string(REPLACE "@@DIFF@@" "diff" content "${content}")
string(REPLACE "@LOCALEDIR@" "${LOCALEDIR}" content "${content}")
string(REPLACE "@GITWEBDIR@" "${GITWEBDIR}" content "${content}")
string(REPLACE "@@NO_CURL@@" "" content "${content}")
string(REPLACE "@@USE_GETTEXT_SCHEME@@" "" content "${content}")
string(REPLACE "# @@BROKEN_PATH_FIX@@" "" content "${content}")
string(REPLACE "@@PERL@@" "${PERL_PATH}" content "${content}")
string(REPLACE "@@SANE_TEXT_GREP@@" "-a" content "${content}")
string(REPLACE "@@PAGER_ENV@@" "LESS=FRX LV=-c" content "${content}")
file(WRITE ${CMAKE_BINARY_DIR}/${script} ${content})
endforeach()
#perl scripts
parse_makefile_for_scripts(git_perl_scripts "SCRIPT_PERL" ".perl")
#create perl header
file(STRINGS ${CMAKE_SOURCE_DIR}/perl/header_templates/fixed_prefix.template.pl perl_header )
string(REPLACE "@@PATHSEP@@" ":" perl_header "${perl_header}")
string(REPLACE "@@INSTLIBDIR@@" "${INSTLIBDIR}" perl_header "${perl_header}")
foreach(script ${git_perl_scripts})
file(STRINGS ${CMAKE_SOURCE_DIR}/${script}.perl content NEWLINE_CONSUME)
string(REPLACE "#!/usr/bin/perl" "#!/usr/bin/perl\n${perl_header}\n" content "${content}")
string(REPLACE "@@GIT_VERSION@@" "${PROJECT_VERSION}" content "${content}")
file(WRITE ${CMAKE_BINARY_DIR}/${script} ${content})
endforeach()
#python script
file(STRINGS ${CMAKE_SOURCE_DIR}/git-p4.py content NEWLINE_CONSUME)
string(REPLACE "#!/usr/bin/env python" "#!/usr/bin/python" content "${content}")
file(WRITE ${CMAKE_BINARY_DIR}/git-p4 ${content})
#perl modules
file(GLOB_RECURSE perl_modules "${CMAKE_SOURCE_DIR}/perl/*.pm")
foreach(pm ${perl_modules})
string(REPLACE "${CMAKE_SOURCE_DIR}/perl/" "" file_path ${pm})
file(STRINGS ${pm} content NEWLINE_CONSUME)
string(REPLACE "@@LOCALEDIR@@" "${LOCALEDIR}" content "${content}")
string(REPLACE "@@NO_PERL_CPAN_FALLBACKS@@" "" content "${content}")
file(WRITE ${CMAKE_BINARY_DIR}/perl/build/lib/${file_path} ${content})
#test-lib.sh requires perl/build/lib to be the build directory of perl modules
endforeach()
#templates
file(GLOB templates "${CMAKE_SOURCE_DIR}/templates/*")
list(TRANSFORM templates REPLACE "${CMAKE_SOURCE_DIR}/templates/" "")
list(REMOVE_ITEM templates ".gitignore")
list(REMOVE_ITEM templates "Makefile")
list(REMOVE_ITEM templates "blt")# Prevents an error when reconfiguring for in source builds
list(REMOVE_ITEM templates "branches--")
file(MAKE_DIRECTORY ${CMAKE_BINARY_DIR}/templates/blt/branches) #create branches
#templates have @.*@ replacement so use configure_file instead
foreach(tm ${templates})
string(REPLACE "--" "/" blt_tm ${tm})
string(REPLACE "this" "" blt_tm ${blt_tm})# for this--
configure_file(${CMAKE_SOURCE_DIR}/templates/${tm} ${CMAKE_BINARY_DIR}/templates/blt/${blt_tm} @ONLY)
endforeach()
#translations
if(MSGFMT_EXE)
file(GLOB po_files "${CMAKE_SOURCE_DIR}/po/*.po")
list(TRANSFORM po_files REPLACE "${CMAKE_SOURCE_DIR}/po/" "")
list(TRANSFORM po_files REPLACE ".po" "")
foreach(po ${po_files})
file(MAKE_DIRECTORY ${CMAKE_BINARY_DIR}/po/build/locale/${po}/LC_MESSAGES)
add_custom_command(OUTPUT ${CMAKE_BINARY_DIR}/po/build/locale/${po}/LC_MESSAGES/git.mo
COMMAND ${MSGFMT_EXE} --check --statistics -o ${CMAKE_BINARY_DIR}/po/build/locale/${po}/LC_MESSAGES/git.mo ${CMAKE_SOURCE_DIR}/po/${po}.po)
list(APPEND po_gen ${CMAKE_BINARY_DIR}/po/build/locale/${po}/LC_MESSAGES/git.mo)
endforeach()
add_custom_target(po-gen ALL DEPENDS ${po_gen})
endif()