diff options
Diffstat (limited to 'meson.build')
| -rw-r--r-- | meson.build | 88 |
1 files changed, 71 insertions, 17 deletions
diff --git a/meson.build b/meson.build index 7361eb2eaa..af7ca042b9 100644 --- a/meson.build +++ b/meson.build @@ -170,7 +170,22 @@ project('git', 'c', meson_version: '>=0.61.0', - version: 'v2.47.GIT', + # The version is only of cosmetic nature, so if we cannot find a shell yet we + # simply don't set up a version at all. This may be the case for example on + # Windows systems, where we first have to bootstrap the host environment. + version: find_program('sh', required: false).found() ? run_command( + 'GIT-VERSION-GEN', meson.current_source_dir(), '--format=@GIT_VERSION@', + capture: true, + check: true, + ).stdout().strip() : 'unknown', + default_options: [ + # Git requires C99 with GNU extensions, which of course isn't supported by + # MSVC. Funny enough, C99 doesn't work with MSVC either, as it has only + # learned to define __STDC_VERSION__ with C11 and later. We thus require + # GNU C99 and fall back to C11. Meson only learned to handle the fallback + # with version 1.3.0, so on older versions we use GNU C99 unconditionally. + 'c_std=' + (meson.version().version_compare('>=1.3.0') ? 'gnu99,c11' : 'gnu99'), + ], ) fs = import('fs') @@ -480,6 +495,13 @@ libgit_sources = [ 'xdiff/xutils.c', ] +libgit_sources += custom_target( + input: 'command-list.txt', + output: 'command-list.h', + command: [shell, meson.current_source_dir() + '/generate-cmdlist.sh', meson.current_source_dir(), '@OUTPUT@'], + env: script_environment, +) + builtin_sources = [ 'builtin/add.c', 'builtin/am.c', @@ -607,14 +629,7 @@ builtin_sources = [ 'builtin/write-tree.c', ] -libgit_sources += custom_target( - input: 'command-list.txt', - output: 'command-list.h', - command: [shell, meson.current_source_dir() + '/generate-cmdlist.sh', meson.current_source_dir(), '@OUTPUT@'], - env: script_environment, -) - -libgit_sources += custom_target( +builtin_sources += custom_target( output: 'config-list.h', command: [ shell, @@ -625,7 +640,7 @@ libgit_sources += custom_target( env: script_environment, ) -libgit_sources += custom_target( +builtin_sources += custom_target( input: 'Documentation/githooks.txt', output: 'hook-list.h', command: [ @@ -1325,6 +1340,7 @@ if not meson.is_cross_build() and fs.exists('/dev/tty') libgit_c_args += '-DHAVE_DEV_TTY' endif +csprng_backend = get_option('csprng_backend') https_backend = get_option('https_backend') sha1_backend = get_option('sha1_backend') sha1_unsafe_backend = get_option('sha1_unsafe_backend') @@ -1336,7 +1352,7 @@ if https_backend == 'auto' and security_framework.found() https_backend = 'CommonCrypto' endif -openssl_required = 'openssl' in [https_backend, sha1_backend, sha1_unsafe_backend, sha256_backend] +openssl_required = 'openssl' in [csprng_backend, https_backend, sha1_backend, sha1_unsafe_backend, sha256_backend] openssl = dependency('openssl', required: openssl_required, default_options: ['default_library=static']) if https_backend == 'auto' and openssl.found() https_backend = 'openssl' @@ -1421,18 +1437,30 @@ else error('Unhandled SHA256 backend ' + sha256_backend) endif -if compiler.has_header_symbol('stdlib.h', 'arc4random_buf') +# Backends are ordered to reflect our preference for more secure and faster +# ones over the ones that are less so. +if csprng_backend in ['auto', 'arc4random'] and compiler.has_header_symbol('stdlib.h', 'arc4random_buf', required: csprng_backend == 'arc4random') libgit_c_args += '-DHAVE_ARC4RANDOM' -elif compiler.has_header_symbol('bsd/stdlib.h', 'arc4random_buf') + csprng_backend = 'arc4random' +elif csprng_backend in ['auto', 'arc4random_bsd'] and compiler.has_header_symbol('bsd/stdlib.h', 'arc4random_buf', required: csprng_backend == 'arc4random_bsd') libgit_c_args += '-DHAVE_ARC4RANDOM_BSD' -elif compiler.has_function('getrandom', prefix: '#include <sys/random.h>') + csprng_backend = 'arc4random_bsd' +elif csprng_backend in ['auto', 'getrandom'] and compiler.has_header_symbol('sys/random.h', 'getrandom', required: csprng_backend == 'getrandom') libgit_c_args += '-DHAVE_GETRANDOM' -elif compiler.has_function('getentropy', prefix: '#include <unistd.h>') + csprng_backend = 'getrandom' +elif csprng_backend in ['auto', 'getentropy'] and compiler.has_header_symbol('unistd.h', 'getentropy', required: csprng_backend == 'getentropy') libgit_c_args += '-DHAVE_GETENTROPY' -elif compiler.has_function('RtlGenRandom', prefix: '#include <windows.h>\n#include <ntsecapi.h>') + csprng_backend = 'getentropy' +elif csprng_backend in ['auto', 'rtlgenrandom'] and compiler.has_header_symbol('ntsecapi.h', 'RtlGenRandom', prefix: '#include <windows.h>', required: csprng_backend == 'rtlgenrandom') libgit_c_args += '-DHAVE_RTLGENRANDOM' -elif openssl.found() + csprng_backend = 'rtlgenrandom' +elif csprng_backend in ['auto', 'openssl'] and openssl.found() libgit_c_args += '-DHAVE_OPENSSL_CSPRNG' + csprng_backend = 'openssl' +elif csprng_backend in ['auto', 'urandom'] + csprng_backend = 'urandom' +else + error('Unsupported CSPRNG backend: ' + csprng_backend) endif if get_option('runtime_prefix') @@ -1899,6 +1927,10 @@ if get_option('tests') subdir('t') endif +if get_option('fuzzers') + subdir('oss-fuzz') +endif + subdir('bin-wrappers') if get_option('docs') != [] subdir('Documentation') @@ -1932,6 +1964,27 @@ configure_file( configuration: build_options_config, ) +# Development environments can be used via `meson devenv -C <builddir>`. This +# allows you to execute test scripts directly with the built Git version and +# puts the built version of Git in your PATH. +devenv = environment() +devenv.set('GIT_BUILD_DIR', meson.current_build_dir()) +devenv.prepend('PATH', meson.current_build_dir() / 'bin-wrappers') +meson.add_devenv(devenv) + +# Generate the 'version' file in the distribution tarball. This is used via +# `meson dist -C <builddir>` to populate the source archive with the Git +# version that the archive is being generated from. +meson.add_dist_script( + shell, + '-c', + '"$1" "$2" "$3" --format="@GIT_VERSION@" "$MESON_DIST_ROOT/version"', + 'GIT-VERSION-GEN', + shell, + meson.current_source_dir() / 'GIT-VERSION-GEN', + meson.current_source_dir(), +) + summary({ 'curl': curl.found(), 'expat': expat.found(), @@ -1945,6 +1998,7 @@ summary({ }, section: 'Auto-detected features') summary({ + 'csprng': csprng_backend, 'https': https_backend, 'sha1': sha1_backend, 'sha1_unsafe': sha1_unsafe_backend, |