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Diffstat (limited to 'meson.build')
| -rw-r--r-- | meson.build | 1925 |
1 files changed, 1925 insertions, 0 deletions
diff --git a/meson.build b/meson.build new file mode 100644 index 0000000000..0064eb64f5 --- /dev/null +++ b/meson.build @@ -0,0 +1,1925 @@ +# Meson build system +# ================== +# +# The Meson build system is an alternative to our Makefile that you can use to +# build, test and install Git. Using Meson results in a couple of benefits: +# +# - Out-of-tree builds. +# - Better integration into IDEs. +# - Easy-to-use autoconfiguration of available features on your system. +# +# To use Meson from the command line you need to have both Meson and Ninja +# installed. Alternatively, if you do not have Python available on your system, +# you can also use Muon instead of Meson and Samurai instead of Ninja, both of +# which are drop-ins replacement that only depend on C. +# +# Basic usage +# =========== +# +# In the most trivial case, you can configure, build and install Git like this: +# +# 1. Set up the build directory. This only needs to happen once per build +# directory you want to have. You can also configure multiple different +# build directories with different configurations. +# +# $ meson setup build/ +# +# The build directory gets ignored by Git automatically as Meson will write +# a ".gitignore" file into it. From hereon, we will assume that you execute +# commands inside this build directory. +# +# 2. Compile Git. You can either use Meson, Ninja or Samurai to do this, so all +# of the following invocations are equivalent: +# +# $ meson compile +# $ ninja +# $ samu +# +# The different invocations should ultimately not make much of a difference. +# Using Meson also works with other generators though, like when the build +# directory has been set up for use with Microsoft Visual Studio. +# +# Ninja and Samurai use multiple jobs by default, scaling with the number of +# processor cores available. You can pass the `-jN` flag to change this. +# +# Meson automatically picks up ccache and sccache when these are installed +# when setting up the build directory. You can override this behaviour when +# setting up the build directory by setting the `CC` environment variable to +# your desired compiler. +# +# 3. Execute tests. Again, you can either use Meson, Ninja or Samurai to do this: +# +# $ meson test +# $ ninja test +# $ samu test +# +# It is recommended to use Meson in this case though as it also provides you +# additional features that the other build systems don't have available. +# You can e.g. pass additional arguments to the test executables or run +# individual tests: +# +# # Execute the t0000-basic integration test and t-reftable-stack unit test. +# $ meson test t0000-basic t-reftable-stack +# +# # Execute all reftable unit tests. +# $ meson test t-reftable-* +# +# # Execute all tests and stop with the first failure. +# $ meson test --maxfail 1 +# +# # Execute single test interactively such that features like `debug ()` work. +# $ meson test -i --test-args='-ix' t1400-update-ref +# +# Test execution is parallelized by default and scales with the number of +# processor cores available. You can change the number of processes by passing +# the `-jN` flag to `meson test`. +# +# 4. Install the Git distribution. Again, this can be done via Meson, Ninja or +# Samurai: +# +# $ meson install +# $ ninja install +# $ samu install +# +# The prefix into which Git shall be installed is defined when setting up +# the build directory. More on that in the "Configuration" section. +# +# Meson supports multiple backends. The default backend generates Ninja build +# instructions, but it also supports the generation of Microsoft Visual +# Studio solutions as well as Xcode projects by passing the `--backend` option +# to `meson setup`. IDEs like Eclipse and Visual Studio Code provide plugins to +# import Meson files directly. +# +# Configuration +# ============= +# +# The exact configuration of Git is determined when setting up the build +# directory via `meson setup`. Unless told otherwise, Meson will automatically +# detect the availability of various bits and pieces. There are two different +# kinds of options that can be used to further tweak the build: +# +# - Built-in options provided by Meson. +# +# - Options defined by the project in the "meson_options.txt" file. +# +# Both kinds of options can be inspected by running `meson configure` in the +# build directory, which will give you a list of the current value for all +# options. +# +# Options can be configured either when setting up the build directory or can +# be changed in preexisting build directories: +# +# # Set up a new build directory with optimized settings that will be +# # installed into an alternative prefix. +# $ meson setup --buildtype release --optimization 3 --strip --prefix=/home/$USER build +# +# # Set up a new build directory with a higher warning level. Level 2 is +# # mostly equivalent to setting DEVELOPER=1, level 3 and "everything" +# # will enable even more warnings. +# $ meson setup -Dwarning_level=2 build +# +# # Set up a new build directory with 'address' and 'undefined' sanitizers +# # using Clang. +# $ CC=clang meson setup -Db_sanitize=address,undefined build +# +# # Disable tests in a preexisting build directory. +# $ meson configure -Dtests=false +# +# # Disable features based on Python +# $ meson configure -Dpython=disabled +# +# Options have a type like booleans, choices, strings or features. Features are +# somewhat special as they can have one of three values: enabled, disabled or +# auto. While the first two values are self-explanatory, "auto" will enable or +# disable the feature based on the availability of prerequisites to support it. +# Python-based features for example will be enabled automatically when a Python +# interpreter could be found. The default value of such features can be changed +# via `meson setup --auto-features={enabled,disabled,auto}`, which will set the +# value of all features with a value of "auto" to the provided one by default. +# +# It is also possible to store a set of configuration options in machine files. +# This can be useful in case you regularly want to reuse the same set of options: +# +# [binaries] +# c = ['clang'] +# ar = ['ar'] +# +# [project options] +# gettext = 'disabled' +# default_editor = 'vim' +# +# [built-in options] +# b_lto = true +# b_sanitize = 'address,undefined' +# +# These machine files can be passed to `meson setup` via the `--native-file` +# option. +# +# Subproject wrappers +# =================== +# +# Subproject wrappers are a feature provided by Meson that allows the automatic +# fallback to a "wrapped" dependency in case the dependency is not provided by +# the system. For example if the system is lacking curl, then Meson will use +# "subprojects/curl.wrap" to set up curl as a subproject and compile and link +# the dependency into Git itself. This is especially helpful on systems like +# Windows, where you typically don't have such dependencies installed. +# +# The use of subproject wrappers can be disabled by executing `meson setup` +# with the `--wrap-mode nofallback` option. + +project('git', 'c', + meson_version: '>=0.61.0', + version: 'v2.47.GIT', +) + +fs = import('fs') + +program_path = [] +# Git for Windows provides all the tools we need to build Git. +if host_machine.system() == 'windows' + program_path += [ 'C:/Program Files/Git/bin', 'C:/Program Files/Git/usr/bin' ] +endif + +cygpath = find_program('cygpath', dirs: program_path, required: false) +diff = find_program('diff', dirs: program_path) +shell = find_program('sh', dirs: program_path) +tar = find_program('tar', dirs: program_path) + +script_environment = environment() +foreach tool : ['cat', 'cut', 'grep', 'sed', 'sort', 'tr', 'uname'] + program = find_program(tool, dirs: program_path) + script_environment.prepend('PATH', fs.parent(program.full_path())) +endforeach + +git = find_program('git', dirs: program_path, required: false) +if git.found() + script_environment.prepend('PATH', fs.parent(git.full_path())) +endif + +if get_option('sane_tool_path') != '' + script_environment.prepend('PATH', get_option('sane_tool_path')) +endif + +# The environment used by GIT-VERSION-GEN. Note that we explicitly override +# environment variables that might be set by the user. This is by design so +# that we always use whatever Meson has configured instead of what is present +# in the environment. +version_gen_environment = script_environment +version_gen_environment.set('GIT_BUILT_FROM_COMMIT', get_option('built_from_commit')) +version_gen_environment.set('GIT_DATE', get_option('build_date')) +version_gen_environment.set('GIT_USER_AGENT', get_option('user_agent')) +version_gen_environment.set('GIT_VERSION', get_option('version')) + +compiler = meson.get_compiler('c') + +libgit_sources = [ + 'abspath.c', + 'add-interactive.c', + 'add-patch.c', + 'advice.c', + 'alias.c', + 'alloc.c', + 'apply.c', + 'archive-tar.c', + 'archive-zip.c', + 'archive.c', + 'attr.c', + 'base85.c', + 'bisect.c', + 'blame.c', + 'blob.c', + 'bloom.c', + 'branch.c', + 'bulk-checkin.c', + 'bundle-uri.c', + 'bundle.c', + 'cache-tree.c', + 'cbtree.c', + 'chdir-notify.c', + 'checkout.c', + 'chunk-format.c', + 'color.c', + 'column.c', + 'combine-diff.c', + 'commit-graph.c', + 'commit-reach.c', + 'commit.c', + 'compat/nonblock.c', + 'compat/obstack.c', + 'compat/terminal.c', + 'compat/zlib-uncompress2.c', + 'config.c', + 'connect.c', + 'connected.c', + 'convert.c', + 'copy.c', + 'credential.c', + 'csum-file.c', + 'ctype.c', + 'date.c', + 'decorate.c', + 'delta-islands.c', + 'diagnose.c', + 'diff-delta.c', + 'diff-merges.c', + 'diff-lib.c', + 'diff-no-index.c', + 'diff.c', + 'diffcore-break.c', + 'diffcore-delta.c', + 'diffcore-order.c', + 'diffcore-pickaxe.c', + 'diffcore-rename.c', + 'diffcore-rotate.c', + 'dir-iterator.c', + 'dir.c', + 'editor.c', + 'entry.c', + 'environment.c', + 'ewah/bitmap.c', + 'ewah/ewah_bitmap.c', + 'ewah/ewah_io.c', + 'ewah/ewah_rlw.c', + 'exec-cmd.c', + 'fetch-negotiator.c', + 'fetch-pack.c', + 'fmt-merge-msg.c', + 'fsck.c', + 'fsmonitor.c', + 'fsmonitor-ipc.c', + 'fsmonitor-settings.c', + 'gettext.c', + 'git-zlib.c', + 'gpg-interface.c', + 'graph.c', + 'grep.c', + 'hash-lookup.c', + 'hashmap.c', + 'help.c', + 'hex.c', + 'hex-ll.c', + 'hook.c', + 'ident.c', + 'json-writer.c', + 'kwset.c', + 'levenshtein.c', + 'line-log.c', + 'line-range.c', + 'linear-assignment.c', + 'list-objects-filter-options.c', + 'list-objects-filter.c', + 'list-objects.c', + 'lockfile.c', + 'log-tree.c', + 'loose.c', + 'ls-refs.c', + 'mailinfo.c', + 'mailmap.c', + 'match-trees.c', + 'mem-pool.c', + 'merge-blobs.c', + 'merge-ll.c', + 'merge-ort.c', + 'merge-ort-wrappers.c', + 'merge-recursive.c', + 'merge.c', + 'midx.c', + 'midx-write.c', + 'name-hash.c', + 'negotiator/default.c', + 'negotiator/noop.c', + 'negotiator/skipping.c', + 'notes-cache.c', + 'notes-merge.c', + 'notes-utils.c', + 'notes.c', + 'object-file-convert.c', + 'object-file.c', + 'object-name.c', + 'object.c', + 'oid-array.c', + 'oidmap.c', + 'oidset.c', + 'oidtree.c', + 'pack-bitmap-write.c', + 'pack-bitmap.c', + 'pack-check.c', + 'pack-mtimes.c', + 'pack-objects.c', + 'pack-revindex.c', + 'pack-write.c', + 'packfile.c', + 'pager.c', + 'parallel-checkout.c', + 'parse.c', + 'parse-options-cb.c', + 'parse-options.c', + 'patch-delta.c', + 'patch-ids.c', + 'path.c', + 'pathspec.c', + 'pkt-line.c', + 'preload-index.c', + 'pretty.c', + 'prio-queue.c', + 'progress.c', + 'promisor-remote.c', + 'prompt.c', + 'protocol.c', + 'protocol-caps.c', + 'prune-packed.c', + 'pseudo-merge.c', + 'quote.c', + 'range-diff.c', + 'reachable.c', + 'read-cache.c', + 'rebase-interactive.c', + 'rebase.c', + 'ref-filter.c', + 'reflog-walk.c', + 'reflog.c', + 'refs.c', + 'refs/debug.c', + 'refs/files-backend.c', + 'refs/reftable-backend.c', + 'refs/iterator.c', + 'refs/packed-backend.c', + 'refs/ref-cache.c', + 'refspec.c', + 'reftable/basics.c', + 'reftable/error.c', + 'reftable/block.c', + 'reftable/blocksource.c', + 'reftable/iter.c', + 'reftable/merged.c', + 'reftable/pq.c', + 'reftable/reader.c', + 'reftable/record.c', + 'reftable/stack.c', + 'reftable/system.c', + 'reftable/tree.c', + 'reftable/writer.c', + 'remote.c', + 'replace-object.c', + 'repo-settings.c', + 'repository.c', + 'rerere.c', + 'reset.c', + 'resolve-undo.c', + 'revision.c', + 'run-command.c', + 'send-pack.c', + 'sequencer.c', + 'serve.c', + 'server-info.c', + 'setup.c', + 'shallow.c', + 'sideband.c', + 'sigchain.c', + 'sparse-index.c', + 'split-index.c', + 'stable-qsort.c', + 'statinfo.c', + 'strbuf.c', + 'streaming.c', + 'string-list.c', + 'strmap.c', + 'strvec.c', + 'sub-process.c', + 'submodule-config.c', + 'submodule.c', + 'symlinks.c', + 'tag.c', + 'tempfile.c', + 'thread-utils.c', + 'tmp-objdir.c', + 'trace.c', + 'trace2.c', + 'trace2/tr2_cfg.c', + 'trace2/tr2_cmd_name.c', + 'trace2/tr2_ctr.c', + 'trace2/tr2_dst.c', + 'trace2/tr2_sid.c', + 'trace2/tr2_sysenv.c', + 'trace2/tr2_tbuf.c', + 'trace2/tr2_tgt_event.c', + 'trace2/tr2_tgt_normal.c', + 'trace2/tr2_tgt_perf.c', + 'trace2/tr2_tls.c', + 'trace2/tr2_tmr.c', + 'trailer.c', + 'transport-helper.c', + 'transport.c', + 'tree-diff.c', + 'tree-walk.c', + 'tree.c', + 'unpack-trees.c', + 'upload-pack.c', + 'url.c', + 'urlmatch.c', + 'usage.c', + 'userdiff.c', + 'utf8.c', + 'varint.c', + 'versioncmp.c', + 'walker.c', + 'wildmatch.c', + 'worktree.c', + 'wrapper.c', + 'write-or-die.c', + 'ws.c', + 'wt-status.c', + 'xdiff-interface.c', + 'xdiff/xdiffi.c', + 'xdiff/xemit.c', + 'xdiff/xhistogram.c', + 'xdiff/xmerge.c', + 'xdiff/xpatience.c', + 'xdiff/xprepare.c', + 'xdiff/xutils.c', +] + +builtin_sources = [ + 'builtin/add.c', + 'builtin/am.c', + 'builtin/annotate.c', + 'builtin/apply.c', + 'builtin/archive.c', + 'builtin/bisect.c', + 'builtin/blame.c', + 'builtin/branch.c', + 'builtin/bugreport.c', + 'builtin/bundle.c', + 'builtin/cat-file.c', + 'builtin/check-attr.c', + 'builtin/check-ignore.c', + 'builtin/check-mailmap.c', + 'builtin/check-ref-format.c', + 'builtin/checkout--worker.c', + 'builtin/checkout-index.c', + 'builtin/checkout.c', + 'builtin/clean.c', + 'builtin/clone.c', + 'builtin/column.c', + 'builtin/commit-graph.c', + 'builtin/commit-tree.c', + 'builtin/commit.c', + 'builtin/config.c', + 'builtin/count-objects.c', + 'builtin/credential-cache--daemon.c', + 'builtin/credential-cache.c', + 'builtin/credential-store.c', + 'builtin/credential.c', + 'builtin/describe.c', + 'builtin/diagnose.c', + 'builtin/diff-files.c', + 'builtin/diff-index.c', + 'builtin/diff-tree.c', + 'builtin/diff.c', + 'builtin/difftool.c', + 'builtin/fast-export.c', + 'builtin/fast-import.c', + 'builtin/fetch-pack.c', + 'builtin/fetch.c', + 'builtin/fmt-merge-msg.c', + 'builtin/for-each-ref.c', + 'builtin/for-each-repo.c', + 'builtin/fsck.c', + 'builtin/fsmonitor--daemon.c', + 'builtin/gc.c', + 'builtin/get-tar-commit-id.c', + 'builtin/grep.c', + 'builtin/hash-object.c', + 'builtin/help.c', + 'builtin/hook.c', + 'builtin/index-pack.c', + 'builtin/init-db.c', + 'builtin/interpret-trailers.c', + 'builtin/log.c', + 'builtin/ls-files.c', + 'builtin/ls-remote.c', + 'builtin/ls-tree.c', + 'builtin/mailinfo.c', + 'builtin/mailsplit.c', + 'builtin/merge-base.c', + 'builtin/merge-file.c', + 'builtin/merge-index.c', + 'builtin/merge-ours.c', + 'builtin/merge-recursive.c', + 'builtin/merge-tree.c', + 'builtin/merge.c', + 'builtin/mktag.c', + 'builtin/mktree.c', + 'builtin/multi-pack-index.c', + 'builtin/mv.c', + 'builtin/name-rev.c', + 'builtin/notes.c', + 'builtin/pack-objects.c', + 'builtin/pack-redundant.c', + 'builtin/pack-refs.c', + 'builtin/patch-id.c', + 'builtin/prune-packed.c', + 'builtin/prune.c', + 'builtin/pull.c', + 'builtin/push.c', + 'builtin/range-diff.c', + 'builtin/read-tree.c', + 'builtin/rebase.c', + 'builtin/receive-pack.c', + 'builtin/reflog.c', + 'builtin/refs.c', + 'builtin/remote-ext.c', + 'builtin/remote-fd.c', + 'builtin/remote.c', + 'builtin/repack.c', + 'builtin/replace.c', + 'builtin/replay.c', + 'builtin/rerere.c', + 'builtin/reset.c', + 'builtin/rev-list.c', + 'builtin/rev-parse.c', + 'builtin/revert.c', + 'builtin/rm.c', + 'builtin/send-pack.c', + 'builtin/shortlog.c', + 'builtin/show-branch.c', + 'builtin/show-index.c', + 'builtin/show-ref.c', + 'builtin/sparse-checkout.c', + 'builtin/stash.c', + 'builtin/stripspace.c', + 'builtin/submodule--helper.c', + 'builtin/symbolic-ref.c', + 'builtin/tag.c', + 'builtin/unpack-file.c', + 'builtin/unpack-objects.c', + 'builtin/update-index.c', + 'builtin/update-ref.c', + 'builtin/update-server-info.c', + 'builtin/upload-archive.c', + 'builtin/upload-pack.c', + 'builtin/var.c', + 'builtin/verify-commit.c', + 'builtin/verify-pack.c', + 'builtin/verify-tag.c', + 'builtin/worktree.c', + '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( + output: 'config-list.h', + command: [ + shell, + meson.current_source_dir() + '/generate-configlist.sh', + meson.current_source_dir(), + '@OUTPUT@', + ], + env: script_environment, +) + +libgit_sources += custom_target( + input: 'Documentation/githooks.txt', + output: 'hook-list.h', + command: [ + shell, + meson.current_source_dir() + '/generate-hooklist.sh', + meson.current_source_dir(), + '@OUTPUT@', + ], + env: script_environment, +) + +# This contains the variables for GIT-BUILD-OPTIONS, which we use to propagate +# build options to our tests. +build_options_config = configuration_data() +build_options_config.set('GIT_INTEROP_MAKE_OPTS', '') +build_options_config.set('GIT_PERF_LARGE_REPO', '') +build_options_config.set('GIT_PERF_MAKE_COMMAND', '') +build_options_config.set('GIT_PERF_MAKE_OPTS', '') +build_options_config.set('GIT_PERF_REPEAT_COUNT', '') +build_options_config.set('GIT_PERF_REPO', '') +build_options_config.set('GIT_TEST_CMP_USE_COPIED_CONTEXT', '') +build_options_config.set('GIT_TEST_INDEX_VERSION', '') +build_options_config.set('GIT_TEST_OPTS', '') +build_options_config.set('GIT_TEST_PERL_FATAL_WARNINGS', '') +build_options_config.set('GIT_TEST_UTF8_LOCALE', '') +build_options_config.set_quoted('LOCALEDIR', fs.as_posix(get_option('prefix') / get_option('localedir'))) +build_options_config.set('GITWEBDIR', fs.as_posix(get_option('prefix') / get_option('datadir') / 'gitweb')) + +if get_option('sane_tool_path') != '' + build_options_config.set_quoted('BROKEN_PATH_FIX', 's|^\# @BROKEN_PATH_FIX@$|git_broken_path_fix "' + get_option('sane_tool_path') + '"|') +else + build_options_config.set_quoted('BROKEN_PATH_FIX', '/^\# @BROKEN_PATH_FIX@$/d') +endif + +test_output_directory = get_option('test_output_directory') +if test_output_directory == '' + test_output_directory = meson.project_build_root() / 'test-output' +endif + +# These variables are used for building libgit.a. +libgit_c_args = [ + '-DBINDIR="' + get_option('bindir') + '"', + '-DDEFAULT_EDITOR="' + get_option('default_editor') + '"', + '-DDEFAULT_GIT_TEMPLATE_DIR="' + get_option('datadir') / 'git-core/templates' + '"', + '-DDEFAULT_HELP_FORMAT="' + get_option('default_help_format') + '"', + '-DDEFAULT_PAGER="' + get_option('default_pager') + '"', + '-DETC_GITATTRIBUTES="' + get_option('gitattributes') + '"', + '-DETC_GITCONFIG="' + get_option('gitconfig') + '"', + '-DFALLBACK_RUNTIME_PREFIX="' + get_option('prefix') + '"', + '-DGIT_EXEC_PATH="' + get_option('prefix') / get_option('libexecdir') / 'git-core"', + '-DGIT_HOST_CPU="' + host_machine.cpu_family() + '"', + '-DGIT_HTML_PATH="' + get_option('datadir') / 'doc/git-doc"', + '-DGIT_INFO_PATH="' + get_option('infodir') + '"', + '-DGIT_LOCALE_PATH="' + get_option('localedir') + '"', + '-DGIT_MAN_PATH="' + get_option('mandir') + '"', + '-DPAGER_ENV="' + get_option('pager_environment') + '"', + '-DSHELL_PATH="' + fs.as_posix(shell.full_path()) + '"', +] +libgit_include_directories = [ '.' ] +libgit_dependencies = [ ] + +# Treat any warning level above 1 the same as we treat DEVELOPER=1 in our +# Makefile. +if get_option('warning_level') in ['2','3', 'everything'] and compiler.get_argument_syntax() == 'gcc' + foreach cflag : [ + '-Wdeclaration-after-statement', + '-Wformat-security', + '-Wold-style-definition', + '-Woverflow', + '-Wpointer-arith', + '-Wstrict-prototypes', + '-Wunused', + '-Wvla', + '-Wwrite-strings', + '-fno-common', + '-Wtautological-constant-out-of-range-compare', + # If a function is public, there should be a prototype and the right + # header file should be included. If not, it should be static. + '-Wmissing-prototypes', + # These are disabled because we have these all over the place. + '-Wno-empty-body', + '-Wno-missing-field-initializers', + '-Wno-sign-compare', + ] + if compiler.has_argument(cflag) + libgit_c_args += cflag + endif + endforeach +endif + +if get_option('b_sanitize').contains('address') + build_options_config.set('SANITIZE_ADDRESS', 'YesCompiledWithIt') +else + build_options_config.set('SANITIZE_ADDRESS', '') +endif +if get_option('b_sanitize').contains('leak') + build_options_config.set('SANITIZE_LEAK', 'YesCompiledWithIt') +else + build_options_config.set('SANITIZE_LEAK', '') +endif +if get_option('b_sanitize').contains('undefined') + libgit_c_args += '-DSHA1DC_FORCE_ALIGNED_ACCESS' +endif + +executable_suffix = '' +if host_machine.system() == 'cygwin' or host_machine.system() == 'windows' + executable_suffix = '.exe' + libgit_c_args += '-DSTRIP_EXTENSION="' + executable_suffix + '"' +endif +build_options_config.set_quoted('X', executable_suffix) + +python = import('python').find_installation('python3', required: get_option('python')) +if python.found() + build_options_config.set('NO_PYTHON', '') +else + libgit_c_args += '-DNO_PYTHON' + build_options_config.set('NO_PYTHON', '1') +endif + +# Perl is used for two different things: our test harness and to provide some +# features. It is optional if you want to neither execute tests nor use any of +# these optional features. +perl_required = get_option('perl') +if get_option('tests') or get_option('gitweb').enabled() + perl_required = true +endif + +# Note that we only set NO_PERL if the Perl features were disabled by the user. +# It may not be set when we have found Perl, but only use it to run tests. +perl = find_program('perl', version: '>=5.8.1', dirs: program_path, required: perl_required) +perl_features_enabled = perl.found() and get_option('perl').allowed() +if perl_features_enabled + build_options_config.set('NO_PERL', '') + + if get_option('runtime_prefix') + build_options_config.set('PERL_LOCALEDIR', '') + else + build_options_config.set_quoted('PERL_LOCALEDIR', fs.as_posix(get_option('prefix') / get_option('localedir'))) + endif + + if get_option('perl_cpan_fallback') + build_options_config.set('NO_PERL_CPAN_FALLBACKS', '') + else + build_options_config.set_quoted('NO_PERL_CPAN_FALLBACKS', 'YesPlease') + endif +else + libgit_c_args += '-DNO_PERL' + build_options_config.set('NO_PERL', '1') + build_options_config.set('PERL_LOCALEDIR', '') + build_options_config.set('NO_PERL_CPAN_FALLBACKS', '') +endif + +zlib = dependency('zlib', default_options: ['default_library=static', 'tests=disabled']) +if zlib.version().version_compare('<1.2.0') + libgit_c_args += '-DNO_DEFLATE_BOUND' +endif +libgit_dependencies += zlib + +threads = dependency('threads', required: false) +if threads.found() + libgit_dependencies += threads + build_options_config.set('NO_PTHREADS', '') +else + libgit_c_args += '-DNO_PTHREADS' + build_options_config.set('NO_PTHREADS', '1') +endif + +msgfmt = find_program('msgfmt', dirs: program_path, required: false) +gettext_option = get_option('gettext').disable_auto_if(not msgfmt.found()) +if not msgfmt.found() and gettext_option.enabled() + error('Internationalization via libintl requires msgfmt') +endif + +if gettext_option.allowed() and host_machine.system() == 'darwin' and get_option('macos_use_homebrew_gettext') + if host_machine.cpu_family() == 'x86_64' + libintl_prefix = '/usr/local' + elif host_machine.cpu_family() == 'aarch64' + libintl_prefix = '/opt/homebrew' + else + error('Homebrew workaround not supported on current architecture') + endif + + intl = compiler.find_library('intl', dirs: libintl_prefix / 'lib', required: gettext_option) + if intl.found() + intl = declare_dependency( + dependencies: intl, + include_directories: libintl_prefix / 'include', + ) + endif +else + intl = dependency('intl', required: gettext_option) +endif +if intl.found() + libgit_dependencies += intl + build_options_config.set('NO_GETTEXT', '') + build_options_config.set('USE_GETTEXT_SCHEME', '') + + # POSIX nowadays requires `nl_langinfo()`, but some systems still don't have + # the function available. On such systems we instead fall back to libcharset. + # On native Windows systems we use our own emulation. + if host_machine.system() != 'windows' and not compiler.has_function('nl_langinfo') + libcharset = compiler.find_library('charset', required: true) + libgit_dependencies += libcharset + libgit_c_args += '-DHAVE_LIBCHARSET_H' + endif +else + libgit_c_args += '-DNO_GETTEXT' + build_options_config.set('NO_GETTEXT', '1') + build_options_config.set('USE_GETTEXT_SCHEME', 'fallthrough') +endif + +iconv = dependency('iconv', required: get_option('iconv')) +if iconv.found() + libgit_dependencies += iconv + build_options_config.set('NO_ICONV', '') + + have_old_iconv = false + if not compiler.compiles(''' + #include <iconv.h> + + extern size_t iconv(iconv_t cd, + char **inbuf, size_t *inbytesleft, + char **outbuf, size_t *outbytesleft); + ''', name: 'old iconv interface', dependencies: [iconv]) + libgit_c_args += '-DOLD_ICONV' + have_old_iconv = true + endif + + iconv_omits_bom_source = '''# + #include <iconv.h> + + int main(int argc, const char **argv) + { + ''' + if have_old_iconv + iconv_omits_bom_source += ''' + typedef const char *iconv_ibp; + ''' + else + iconv_omits_bom_source += ''' + typedef char *iconv_ibp; + ''' + endif + iconv_omits_bom_source += ''' + int v; + iconv_t conv; + char in[] = "a"; iconv_ibp pin = in; + char out[20] = ""; char *pout = out; + size_t isz = sizeof in; + size_t osz = sizeof out; + + conv = iconv_open("UTF-16", "UTF-8"); + iconv(conv, &pin, &isz, &pout, &osz); + iconv_close(conv); + v = (unsigned char)(out[0]) + (unsigned char)(out[1]); + return v != 0xfe + 0xff; + } + ''' + + if compiler.run(iconv_omits_bom_source, + dependencies: iconv, + name: 'iconv omits BOM', + ).returncode() != 0 + libgit_c_args += '-DICONV_OMITS_BOM' + endif +else + libgit_c_args += '-DNO_ICONV' + build_options_config.set('NO_ICONV', '1') +endif + +pcre2 = dependency('libpcre2-8', required: get_option('pcre2'), default_options: ['default_library=static', 'test=false']) +if pcre2.found() + libgit_dependencies += pcre2 + libgit_c_args += '-DUSE_LIBPCRE2' + build_options_config.set('USE_LIBPCRE2', '1') +else + build_options_config.set('USE_LIBPCRE2', '') +endif + +curl = dependency('libcurl', version: '>=7.21.3', required: get_option('curl'), default_options: ['default_library=static', 'tests=disabled', 'tool=disabled']) +use_curl_for_imap_send = false +if curl.found() + if curl.version().version_compare('>=7.34.0') + libgit_c_args += '-DUSE_CURL_FOR_IMAP_SEND' + use_curl_for_imap_send = true + endif + + libgit_dependencies += curl + libgit_c_args += '-DCURL_DISABLE_TYPECHECK' + build_options_config.set('NO_CURL', '') +else + libgit_c_args += '-DNO_CURL' + build_options_config.set('NO_CURL', '1') +endif + +expat = dependency('expat', required: get_option('expat'), default_options: ['default_library=static', 'build_tests=false']) +if expat.found() + libgit_dependencies += expat + + if expat.version().version_compare('<=1.2') + libgit_c_args += '-DEXPAT_NEEDS_XMLPARSE_H' + endif + build_options_config.set('NO_EXPAT', '') +else + libgit_c_args += '-DNO_EXPAT' + build_options_config.set('NO_EXPAT', '1') +endif + +if not compiler.has_header('sys/select.h') + libgit_c_args += '-DNO_SYS_SELECT_H' +endif + +has_poll_h = compiler.has_header('poll.h') +if not has_poll_h + libgit_c_args += '-DNO_POLL_H' +endif + +has_sys_poll_h = compiler.has_header('sys/poll.h') +if not has_sys_poll_h + libgit_c_args += '-DNO_SYS_POLL_H' +endif + +if not has_poll_h and not has_sys_poll_h + libgit_c_args += '-DNO_POLL' + libgit_sources += 'compat/poll/poll.c' + libgit_include_directories += 'compat/poll' +endif + +if not compiler.has_header('inttypes.h') + libgit_c_args += '-DNO_INTTYPES_H' +endif + +if compiler.has_header('alloca.h') + libgit_c_args += '-DHAVE_ALLOCA_H' +endif + +if compiler.has_header('sys/sysinfo.h') + libgit_c_args += '-DHAVE_SYSINFO' +endif + +# Windows has libgen.h and a basename implementation, but we still need our own +# implementation to threat things like drive prefixes specially. +if host_machine.system() == 'windows' or not compiler.has_header('libgen.h') + libgit_c_args += '-DNO_LIBGEN_H' + libgit_sources += 'compat/basename.c' +endif + +if compiler.has_header('paths.h') + libgit_c_args += '-DHAVE_PATHS_H' +endif + +if compiler.has_header('strings.h') + libgit_c_args += '-DHAVE_STRINGS_H' +endif + +networking_dependencies = [ ] +if host_machine.system() == 'windows' + winsock = compiler.find_library('ws2_32', required: false) + if winsock.found() + networking_dependencies += winsock + endif +else + libresolv = compiler.find_library('resolv', required: false) + if libresolv.found() + networking_dependencies += libresolv + endif +endif +libgit_dependencies += networking_dependencies + +foreach symbol : ['inet_ntop', 'inet_pton', 'strerror'] + if not compiler.has_function(symbol, dependencies: networking_dependencies) + libgit_c_args += '-DNO_' + symbol.to_upper() + endif +endforeach + +has_ipv6 = compiler.has_function('getaddrinfo', dependencies: networking_dependencies) +if not has_ipv6 + libgit_c_args += '-DNO_IPV6' +endif + +if not compiler.compiles(''' + #ifdef _WIN32 + # include <winsock2.h> + #else + # include <sys/types.h> + # include <sys/socket.h> + #endif + + void func(void) + { + struct sockaddr_storage x; + } +''', name: 'struct sockaddr_storage') + if has_ipv6 + libgit_c_args += '-Dsockaddr_storage=sockaddr_in6' + else + libgit_c_args += '-Dsockaddr_storage=sockaddr_in' + endif +endif + +if compiler.has_function('socket', dependencies: networking_dependencies) + libgit_sources += [ + 'unix-socket.c', + 'unix-stream-server.c', + ] + build_options_config.set('NO_UNIX_SOCKETS', '') +else + libgit_c_args += '-DNO_UNIX_SOCKETS' + build_options_config.set('NO_UNIX_SOCKETS', '1') +endif + +if not compiler.has_function('pread') + libgit_c_args += '-DNO_PREAD' + libgit_sources += 'compat/pread.c' +endif + +if host_machine.system() == 'darwin' + libgit_sources += 'compat/precompose_utf8.c' + libgit_c_args += '-DPRECOMPOSE_UNICODE' + libgit_c_args += '-DPROTECT_HFS_DEFAULT' +endif + +# Configure general compatibility wrappers. +if host_machine.system() == 'cygwin' + libgit_sources += [ + 'compat/win32/path-utils.c', + ] +elif host_machine.system() == 'windows' + libgit_sources += [ + 'compat/mingw.c', + 'compat/winansi.c', + 'compat/win32/flush.c', + 'compat/win32/path-utils.c', + 'compat/win32/pthread.c', + 'compat/win32/syslog.c', + 'compat/win32/dirent.c', + 'compat/win32mmap.c', + 'compat/nedmalloc/nedmalloc.c', + ] + + libgit_c_args += [ + '-DDETECT_MSYS_TTY', + '-DENSURE_MSYSTEM_IS_SET', + '-DNATIVE_CRLF', + '-DNOGDI', + '-DNO_POSIX_GOODIES', + '-DWIN32', + '-D_CONSOLE', + '-D_CONSOLE_DETECT_MSYS_TTY', + '-D__USE_MINGW_ANSI_STDIO=0', + ] + + libgit_dependencies += compiler.find_library('ntdll') + libgit_include_directories += 'compat/win32' + if compiler.get_id() == 'msvc' + libgit_include_directories += 'compat/vcbuild/include' + endif +endif + +if host_machine.system() == 'linux' + libgit_sources += 'compat/linux/procinfo.c' +elif host_machine.system() == 'windows' + libgit_sources += 'compat/win32/trace2_win32_process_info.c' +else + libgit_sources += 'compat/stub/procinfo.c' +endif + +if host_machine.system() == 'cygwin' or host_machine.system() == 'windows' + libgit_c_args += [ + '-DUNRELIABLE_FSTAT', + '-DMMAP_PREVENTS_DELETE', + '-DOBJECT_CREATION_MODE=1', + ] +endif + +# Configure the simple-ipc subsystem required fro the fsmonitor. +if host_machine.system() == 'windows' + libgit_sources += [ + 'compat/simple-ipc/ipc-shared.c', + 'compat/simple-ipc/ipc-win32.c', + ] + libgit_c_args += '-DSUPPORTS_SIMPLE_IPC' +else + libgit_sources += [ + 'compat/simple-ipc/ipc-shared.c', + 'compat/simple-ipc/ipc-unix-socket.c', + ] + libgit_c_args += '-DSUPPORTS_SIMPLE_IPC' +endif + +fsmonitor_backend = '' +if host_machine.system() == 'windows' + fsmonitor_backend = 'win32' +elif host_machine.system() == 'darwin' + fsmonitor_backend = 'darwin' + libgit_dependencies += dependency('CoreServices') +endif +if fsmonitor_backend != '' + libgit_c_args += '-DHAVE_FSMONITOR_DAEMON_BACKEND' + libgit_c_args += '-DHAVE_FSMONITOR_OS_SETTINGS' + + libgit_sources += [ + 'compat/fsmonitor/fsm-health-' + fsmonitor_backend + '.c', + 'compat/fsmonitor/fsm-ipc-' + fsmonitor_backend + '.c', + 'compat/fsmonitor/fsm-listen-' + fsmonitor_backend + '.c', + 'compat/fsmonitor/fsm-path-utils-' + fsmonitor_backend + '.c', + 'compat/fsmonitor/fsm-settings-' + fsmonitor_backend + '.c', + ] +endif +build_options_config.set_quoted('FSMONITOR_DAEMON_BACKEND', fsmonitor_backend) +build_options_config.set_quoted('FSMONITOR_OS_SETTINGS', fsmonitor_backend) + +if not get_option('b_sanitize').contains('address') and get_option('regex').allowed() and compiler.has_header('regex.h') and compiler.get_define('REG_STARTEND', prefix: '#include <regex.h>') != '' + build_options_config.set('NO_REGEX', '') + + if compiler.get_define('REG_ENHANCED', prefix: '#include <regex.h>') != '' + libgit_c_args += '-DUSE_ENHANCED_BASIC_REGULAR_EXPRESSIONS' + libgit_sources += 'compat/regcomp_enhanced.c' + endif +elif not get_option('regex').enabled() + libgit_c_args += [ + '-DNO_REGEX', + '-DGAWK', + '-DNO_MBSUPPORT', + ] + build_options_config.set('NO_REGEX', '1') + libgit_sources += 'compat/regex/regex.c' + libgit_include_directories += 'compat/regex' +else + error('Native regex support requested but not found') +endif + +# setitimer and friends are provided by compat/mingw.c. +if host_machine.system() != 'windows' + if not compiler.compiles(''' + #include <sys/time.h> + void func(void) + { + struct itimerval value; + } + ''', name: 'struct itimerval') + libgit_c_args += '-DNO_STRUCT_ITIMERVAL' + libgit_c_args += '-DNO_SETITIMER' + elif not compiler.has_function('setitimer') + libgit_c_args += '-DNO_SETITIMER' + endif +endif + +if compiler.has_member('struct stat', 'st_mtimespec.tv_nsec', prefix: '#include <sys/stat.h>') + libgit_c_args += '-DUSE_ST_TIMESPEC' +elif not compiler.has_member('struct stat', 'st_mtim.tv_nsec', prefix: '#include <sys/stat.h>') + libgit_c_args += '-DNO_NSEC' +endif + +if not compiler.has_member('struct stat', 'st_blocks', prefix: '#include <sys/stat.h>') + libgit_c_args += '-DNO_ST_BLOCKS_IN_STRUCT_STAT' +endif + +if not compiler.has_member('struct dirent', 'd_type', prefix: '#include <dirent.h>') + libgit_c_args += '-DNO_D_TYPE_IN_DIRENT' +endif + +if not compiler.has_member('struct passwd', 'pw_gecos', prefix: '#include <pwd.h>') + libgit_c_args += '-DNO_GECOS_IN_PWENT' +endif + +if compiler.has_function('sync_file_range') + libgit_c_args += '-DHAVE_SYNC_FILE_RANGE' +endif + +if not compiler.has_function('strcasestr') + libgit_c_args += '-DNO_STRCASESTR' + libgit_sources += 'compat/strcasestr.c' +endif + +if not compiler.has_function('memmem') + libgit_c_args += '-DNO_MEMMEM' + libgit_sources += 'compat/memmem.c' +endif + +if not compiler.has_function('strlcpy') + libgit_c_args += '-DNO_STRLCPY' + libgit_sources += 'compat/strlcpy.c' +endif + +if not compiler.has_function('strdup') + libgit_c_args += '-DOVERRIDE_STRDUP' + libgit_sources += 'compat/strdup.c' +endif + +if not compiler.has_function('strtoumax') + libgit_c_args += '-DNO_STRTOUMAX' + libgit_sources += [ + 'compat/strtoumax.c', + 'compat/strtoimax.c', + ] +endif + +if not compiler.has_function('strtoull') + libgit_c_args += '-DNO_STRTOULL' +endif + +if not compiler.has_function('setenv') + libgit_c_args += '-DNO_SETENV' + libgit_sources += 'compat/setenv.c' +endif + +if not compiler.has_function('qsort') + libgit_c_args += '-DINTERNAL_QSORT' +endif +libgit_sources += 'compat/qsort_s.c' + +# unsetenv is provided by compat/mingw.c. +if host_machine.system() != 'windows' and not compiler.has_function('unsetenv') + libgit_c_args += '-DNO_UNSETENV' + libgit_sources += 'compat/unsetenv.c' +endif + +if not compiler.has_function('mkdtemp') + libgit_c_args += '-DNO_MKDTEMP' + libgit_sources += 'compat/mkdtemp.c' +endif + +if not compiler.has_function('initgroups') + libgit_c_args += '-DNO_INITGROUPS' +endif + +if compiler.has_function('getdelim') + libgit_c_args += '-DHAVE_GETDELIM' +endif + +if host_machine.system() == 'windows' + libgit_c_args += '-DUSE_WIN32_MMAP' +elif not compiler.has_function('mmap') + libgit_c_args += '-DNO_MMAP' + libgit_sources += 'compat/mmap.c' +endif + +if compiler.has_function('clock_gettime') + libgit_c_args += '-DHAVE_CLOCK_GETTIME' +endif + +if compiler.compiles(''' + #include <time.h> + + void func(void) + { + clockid_t id = CLOCK_MONOTONIC; + } +''', name: 'monotonic clock') + libgit_c_args += '-DHAVE_CLOCK_MONOTONIC' +endif + +if not compiler.compiles(''' + #include <inttypes.h> + + void func(void) + { + uintmax_t x = 0; + } +''', name: 'uintmax_t') + libgit_c_args += '-DNO_UINTMAX_T' +endif + +has_bsd_sysctl = false +if compiler.has_header('sys/sysctl.h') + if compiler.compiles(''' + #include <stddef.h> + #include <sys/sysctl.h> + + void func(void) + { + int val, mib[2] = { 0 }; + size_t len = sizeof(val); + sysctl(mib, 2, &val, &len, NULL, 0); + } + ''', name: 'BSD sysctl') + libgit_c_args += '-DHAVE_BSD_SYSCTL' + has_bsd_sysctl = true + endif +endif + +if not meson.is_cross_build() and compiler.run(''' + #include <stdio.h> + + int main(int argc, const char **argv) + { + FILE *f = fopen(".", "r"); + return f ? 0 : 1; + } +''', name: 'fread reads directories').returncode() == 0 + libgit_c_args += '-DFREAD_READS_DIRECTORIES' + libgit_sources += 'compat/fopen.c' +endif + +if not meson.is_cross_build() and fs.exists('/dev/tty') + libgit_c_args += '-DHAVE_DEV_TTY' +endif + +https_backend = get_option('https_backend') + +security_framework = dependency('Security', required: https_backend == 'CommonCrypto') +core_foundation_framework = dependency('CoreFoundation', required: security_framework.found()) +if https_backend == 'auto' and security_framework.found() + https_backend = 'CommonCrypto' +endif + +openssl_required = https_backend == 'openssl' or get_option('sha1_backend') == 'openssl' or get_option('sha256_backend') == 'openssl' +openssl = dependency('openssl', required: openssl_required, default_options: ['default_library=static']) +if https_backend == 'auto' and openssl.found() + https_backend = 'openssl' +endif + +if https_backend == 'CommonCrypto' + libgit_dependencies += security_framework + libgit_dependencies += core_foundation_framework + libgit_c_args += '-DAPPLE_COMMON_CRYPTO' +elif https_backend == 'openssl' + libgit_dependencies += openssl +else + # We either couldn't find any dependencies with 'auto' or the user requested + # 'none'. Both cases are benign. +endif + +if https_backend != 'openssl' + libgit_c_args += '-DNO_OPENSSL' +endif + +sha1_backend = get_option('sha1_backend') +if sha1_backend == 'sha1dc' + libgit_c_args += '-DSHA1_DC' + libgit_c_args += '-DSHA1DC_NO_STANDARD_INCLUDES=1' + libgit_c_args += '-DSHA1DC_INIT_SAFE_HASH_DEFAULT=0' + libgit_c_args += '-DSHA1DC_CUSTOM_INCLUDE_SHA1_C="git-compat-util.h"' + libgit_c_args += '-DSHA1DC_CUSTOM_INCLUDE_UBC_CHECK_C="git-compat-util.h"' + + libgit_sources += [ + 'sha1dc_git.c', + 'sha1dc/sha1.c', + 'sha1dc/ubc_check.c', + ] +elif sha1_backend == 'common-crypto' + libgit_c_args += '-DCOMMON_DIGEST_FOR_OPENSSL' + libgit_c_args += '-DSHA1_APPLE' + # Apple CommonCrypto requires chunking + libgit_c_args += '-DSHA1_MAX_BLOCK_SIZE=1024L*1024L*1024L' +elif sha1_backend == 'openssl' + libgit_c_args += '-DSHA1_OPENSSL' + libgit_dependencies += openssl +elif sha1_backend == 'block' + libgit_c_args += '-DSHA1_BLK' + libgit_sources += 'block-sha1/sha1.c' +else + error('Unhandled SHA1 backend ' + sha1_backend) +endif + +sha256_backend = get_option('sha256_backend') +if sha256_backend == 'openssl' + libgit_c_args += '-DSHA256_OPENSSL' + libgit_dependencies += openssl +elif sha256_backend == 'nettle' + nettle = dependency('nettle') + libgit_dependencies += nettle + libgit_c_args += '-DSHA256_NETTLE' +elif sha256_backend == 'gcrypt' + gcrypt = dependency('gcrypt') + libgit_dependencies += gcrypt + libgit_c_args += '-DSHA256_GCRYPT' +elif sha256_backend == 'block' + libgit_c_args += '-DSHA256_BLK' + libgit_sources += 'sha256/block/sha256.c' +else + error('Unhandled SHA256 backend ' + sha256_backend) +endif + +if compiler.has_header_symbol('stdlib.h', 'arc4random_buf') + libgit_c_args += '-DHAVE_ARC4RANDOM' +elif compiler.has_header_symbol('bsd/stdlib.h', 'arc4random_buf') + libgit_c_args += '-DHAVE_ARC4RANDOM_BSD' +elif compiler.has_function('getrandom', prefix: '#include <sys/random.h>') + libgit_c_args += '-DHAVE_GETRANDOM' +elif compiler.has_function('getentropy', prefix: '#include <unistd.h>') + libgit_c_args += '-DHAVE_GETENTROPY' +elif compiler.has_function('RtlGenRandom', prefix: '#include <windows.h>\n#include <ntsecapi.h>') + libgit_c_args += '-DHAVE_RTLGENRANDOM' +elif openssl.found() + libgit_c_args += '-DHAVE_OPENSSL_CSPRNG' +endif + +if get_option('runtime_prefix') + libgit_c_args += '-DRUNTIME_PREFIX' + build_options_config.set('RUNTIME_PREFIX', 'true') + + if compiler.has_header('mach-o/dyld.h') + libgit_c_args += '-DHAVE_NS_GET_EXECUTABLE_PATH' + endif + + if has_bsd_sysctl and compiler.compiles(''' + #include <sys/sysctl.h> + + void func(void) + { + KERN_PROC_PATHNAME; KERN_PROC; + } + ''', name: 'BSD KERN_PROC_PATHNAME') + libgit_c_args += '-DHAVE_NS_GET_EXECUTABLE_PATH' + endif + + if host_machine.system() == 'linux' + libgit_c_args += '-DPROCFS_EXECUTABLE_PATH="/proc/self/exe' + '"' + elif host_machine.system() == 'openbsd' + libgit_c_args += '-DPROCFS_EXECUTABLE_PATH="' + '/proc/curproc/file' + '"' + elif host_machine.system() == 'netbsd' + libgit_c_args += '-DPROCFS_EXECUTABLE_PATH="' + '/proc/curproc/exe' + '"' + endif + + if host_machine.system() == 'windows' and compiler.compiles(''' + #include <stdlib.h> + + void func(void) + { + _wpgmptr; + } + ''', name: 'Win32 _wpgmptr') + libgit_c_args += '-DHAVE_WPGMPTR' + endif +else + build_options_config.set('RUNTIME_PREFIX', 'false') +endif + +git_version_file = custom_target( + command: [ + shell, + meson.current_source_dir() / 'GIT-VERSION-GEN', + meson.current_source_dir(), + '@INPUT@', + '@OUTPUT@', + ], + input: meson.current_source_dir() / 'GIT-VERSION-FILE.in', + output: 'GIT-VERSION-FILE', + env: version_gen_environment, + build_always_stale: true, +) + +version_def_h = custom_target( + command: [ + shell, + meson.current_source_dir() / 'GIT-VERSION-GEN', + meson.current_source_dir(), + '@INPUT@', + '@OUTPUT@', + ], + input: meson.current_source_dir() / 'version-def.h.in', + output: 'version-def.h', + # Depend on GIT-VERSION-FILE so that we don't always try to rebuild this + # target for the same commit. + depends: [git_version_file], + env: version_gen_environment, +) + +# Build a separate library for "version.c" so that we do not have to rebuild +# everything when the current Git commit changes. +libgit_version_library = static_library('git-version', + sources: [ + 'version.c', + version_def_h, + ], + c_args: libgit_c_args, + dependencies: libgit_dependencies, + include_directories: libgit_include_directories, +) + +libgit_library = static_library('git', + sources: libgit_sources, + c_args: libgit_c_args, + link_with: libgit_version_library, + dependencies: libgit_dependencies, + include_directories: libgit_include_directories, +) + +libgit = declare_dependency( + compile_args: libgit_c_args, + link_with: libgit_library, + dependencies: libgit_dependencies, + include_directories: libgit_include_directories, +) + +common_main_sources = ['common-main.c'] +common_main_link_args = [ ] +if host_machine.system() == 'windows' + git_rc = custom_target( + command: [ + shell, + meson.current_source_dir() / 'GIT-VERSION-GEN', + meson.current_source_dir(), + '@INPUT@', + '@OUTPUT@', + ], + input: meson.current_source_dir() / 'git.rc.in', + output: 'git.rc', + depends: [git_version_file], + env: version_gen_environment, + ) + + common_main_sources += import('windows').compile_resources(git_rc, + include_directories: [meson.current_source_dir()], + ) + if compiler.get_argument_syntax() == 'gcc' + common_main_link_args += [ + '-municode', + '-Wl,-nxcompat', + '-Wl,-dynamicbase', + '-Wl,-pic-executable,-e,mainCRTStartup', + ] + elif compiler.get_argument_syntax() == 'msvc' + common_main_link_args += [ + '/ENTRY:wmainCRTStartup', + 'invalidcontinue.obj', + ] + else + error('Unsupported compiler ' + compiler.get_id()) + endif +endif +common_main_library = static_library('common-main', + sources: common_main_sources, + c_args: libgit_c_args, + dependencies: libgit_dependencies, + include_directories: libgit_include_directories, +) +common_main = declare_dependency( + link_with: common_main_library, + link_args: common_main_link_args, +) + +bin_wrappers = [ ] +test_dependencies = [ ] + +git = executable('git', + sources: builtin_sources + 'git.c', + dependencies: [libgit, common_main], + install: true, + install_dir: get_option('libexecdir') / 'git-core', +) +bin_wrappers += git + +test_dependencies += executable('git-daemon', + sources: 'daemon.c', + dependencies: [libgit, common_main], + install: true, + install_dir: get_option('libexecdir') / 'git-core', +) + +test_dependencies += executable('git-sh-i18n--envsubst', + sources: 'sh-i18n--envsubst.c', + dependencies: [libgit, common_main], + install: true, + install_dir: get_option('libexecdir') / 'git-core', +) + +bin_wrappers += executable('git-shell', + sources: 'shell.c', + dependencies: [libgit, common_main], + install: true, + install_dir: get_option('libexecdir') / 'git-core', +) + +test_dependencies += executable('git-http-backend', + sources: 'http-backend.c', + dependencies: [libgit, common_main], + install: true, + install_dir: get_option('libexecdir') / 'git-core', +) + +bin_wrappers += executable('scalar', + sources: 'scalar.c', + dependencies: [libgit, common_main], + install: true, + install_dir: get_option('libexecdir') / 'git-core', +) + +if get_option('curl').enabled() + curl_sources = [ + 'http.c', + 'http-walker.c', + ] + + git_remote_http = executable('git-remote-http', + sources: curl_sources + 'remote-curl.c', + dependencies: [libgit, common_main], + install: true, + install_dir: get_option('libexecdir') / 'git-core', + ) + test_dependencies += git_remote_http + + test_dependencies += executable('git-http-fetch', + sources: curl_sources + 'http-fetch.c', + dependencies: [libgit, common_main], + install: true, + install_dir: get_option('libexecdir') / 'git-core', + ) + + if expat.found() + test_dependencies += executable('git-http-push', + sources: curl_sources + 'http-push.c', + dependencies: [libgit, common_main], + install: true, + install_dir: get_option('libexecdir') / 'git-core', + ) + endif + + foreach alias : [ 'git-remote-https', 'git-remote-ftp', 'git-remote-ftps' ] + test_dependencies += executable(alias, + objects: git_remote_http.extract_all_objects(recursive: false), + dependencies: [libgit, common_main], + ) + + install_symlink(alias + executable_suffix, + install_dir: get_option('libexecdir') / 'git-core', + pointing_to: 'git-remote-http', + ) + endforeach +endif + +imap_send_sources = ['imap-send.c'] +if use_curl_for_imap_send + imap_send_sources += curl_sources +endif + +test_dependencies += executable('git-imap-send', + sources: imap_send_sources, + dependencies: [libgit, common_main], + install: true, + install_dir: get_option('libexecdir') / 'git-core', +) + +foreach alias : [ 'git-receive-pack', 'git-upload-archive', 'git-upload-pack' ] + bin_wrappers += executable(alias, + objects: git.extract_all_objects(recursive: false), + dependencies: [libgit, common_main], + ) + + install_symlink(alias + executable_suffix, + install_dir: get_option('libexecdir') / 'git-core', + pointing_to: 'git', + ) +endforeach + +foreach symlink : [ + 'git', + 'git-receive-pack', + 'git-shell', + 'git-upload-archive', + 'git-upload-pack', + 'scalar', +] + if meson.version().version_compare('>=1.3.0') + pointing_to = fs.relative_to(get_option('libexecdir') / 'git-core' / symlink, get_option('bindir')) + else + pointing_to = '../libexec/git-core' / symlink + endif + + install_symlink(symlink, + install_dir: get_option('bindir'), + pointing_to: pointing_to, + ) +endforeach + +scripts_sh = [ + 'git-difftool--helper.sh', + 'git-filter-branch.sh', + 'git-merge-octopus.sh', + 'git-merge-one-file.sh', + 'git-merge-resolve.sh', + 'git-mergetool--lib.sh', + 'git-mergetool.sh', + 'git-quiltimport.sh', + 'git-request-pull.sh', + 'git-sh-i18n.sh', + 'git-sh-setup.sh', + 'git-submodule.sh', + 'git-web--browse.sh', +] +if perl_features_enabled + scripts_sh += 'git-instaweb.sh' +endif + +foreach script : scripts_sh + test_dependencies += custom_target( + input: script, + output: fs.stem(script), + command: [ + shell, + meson.project_source_root() / 'generate-script.sh', + '@INPUT@', + '@OUTPUT@', + meson.project_build_root() / 'GIT-BUILD-OPTIONS', + ], + install: true, + install_dir: get_option('libexecdir') / 'git-core', + ) +endforeach + +if perl_features_enabled + scripts_perl = [ + 'git-archimport.perl', + 'git-cvsexportcommit.perl', + 'git-cvsimport.perl', + 'git-cvsserver.perl', + 'git-send-email.perl', + 'git-svn.perl', + ] + + pathsep = ':' + if host_machine.system() == 'windows' + pathsep = ';' + endif + + perl_header_template = 'perl/header_templates/fixed_prefix.template.pl' + if get_option('runtime_prefix') + perl_header_template = 'perl/header_templates/runtime_prefix.template.pl' + endif + + perl_header = configure_file( + input: perl_header_template, + output: 'GIT-PERL-HEADER', + configuration: { + 'GITEXECDIR_REL': get_option('libexecdir') / 'git-core', + 'PERLLIBDIR_REL': get_option('datadir') / 'perl5', + 'LOCALEDIR_REL': get_option('datadir') / 'locale', + 'INSTLIBDIR': get_option('datadir') / 'perl5', + 'PATHSEP': pathsep, + }, + ) + + generate_perl_command = [ + shell, + meson.project_source_root() / 'generate-perl.sh', + meson.project_build_root() / 'GIT-BUILD-OPTIONS', + git_version_file.full_path(), + perl_header, + '@INPUT@', + '@OUTPUT@', + ] + + foreach script : scripts_perl + generated_script = custom_target( + input: script, + output: fs.stem(script), + command: generate_perl_command, + install: true, + install_dir: get_option('libexecdir') / 'git-core', + depends: [git_version_file], + ) + test_dependencies += generated_script + + if script == 'git-cvsserver.perl' + bin_wrappers += generated_script + + if meson.version().version_compare('>=1.3.0') + pointing_to = fs.relative_to(get_option('libexecdir') / 'git-core' / fs.stem(script), get_option('bindir')) + else + pointing_to = '../libexec/git-core' / fs.stem(script) + endif + + install_symlink(fs.stem(script), + install_dir: get_option('bindir'), + pointing_to: pointing_to, + ) + endif + endforeach + + subdir('perl') +endif + +if python.found() + scripts_python = [ + 'git-p4.py' + ] + + foreach script : scripts_python + generated_python = custom_target( + input: script, + output: fs.stem(script), + command: [ + shell, + meson.project_source_root() / 'generate-python.sh', + meson.project_build_root() / 'GIT-BUILD-OPTIONS', + '@INPUT@', + '@OUTPUT@', + ], + install: true, + install_dir: get_option('libexecdir') / 'git-core', + ) + test_dependencies += generated_python + endforeach +endif + +mergetools = [ + 'mergetools/araxis', + 'mergetools/bc', + 'mergetools/codecompare', + 'mergetools/deltawalker', + 'mergetools/diffmerge', + 'mergetools/diffuse', + 'mergetools/ecmerge', + 'mergetools/emerge', + 'mergetools/examdiff', + 'mergetools/guiffy', + 'mergetools/gvimdiff', + 'mergetools/kdiff3', + 'mergetools/kompare', + 'mergetools/meld', + 'mergetools/nvimdiff', + 'mergetools/opendiff', + 'mergetools/p4merge', + 'mergetools/smerge', + 'mergetools/tkdiff', + 'mergetools/tortoisemerge', + 'mergetools/vimdiff', + 'mergetools/vscode', + 'mergetools/winmerge', + 'mergetools/xxdiff', +] + +foreach mergetool : mergetools + install_data(mergetool, install_dir: get_option('libexecdir') / 'git-core' / 'mergetools') +endforeach + +if intl.found() + subdir('po') +endif +subdir('contrib') + +# Gitweb requires Perl, so we disable the auto-feature if Perl was not found. +# We make sure further up that Perl is required in case the gitweb option is +# enabled. +gitweb_option = get_option('gitweb').disable_auto_if(not perl.found()) +if gitweb_option.allowed() + subdir('gitweb') + build_options_config.set('NO_GITWEB', '') +else + build_options_config.set('NO_GITWEB', '1') +endif + +subdir('templates') + +# Everything but the bin-wrappers need to come before this target such that we +# can properly set up test dependencies. The bin-wrappers themselves are set up +# at configuration time, so these are fine. +if get_option('tests') + subdir('t') +endif + +subdir('bin-wrappers') +if get_option('docs') != [] + subdir('Documentation') +endif + +foreach key, value : { + 'DIFF': diff.full_path(), + 'GIT_TEST_CMP': diff.full_path() + ' -u', + 'GIT_TEST_GITPERLLIB': meson.project_build_root() / 'perl', + 'GIT_TEST_MERGE_TOOLS_DIR': meson.project_source_root() / 'mergetools', + 'GIT_TEST_POPATH': meson.project_source_root() / 'po', + 'GIT_TEST_TEMPLATE_DIR': meson.project_build_root() / 'templates', + 'GIT_TEST_TEXTDOMAINDIR': meson.project_build_root() / 'po', + 'PAGER_ENV': get_option('pager_environment'), + 'PERL_PATH': perl.found() ? perl.full_path() : '', + 'PYTHON_PATH': python.found () ? python.full_path() : '', + 'SHELL_PATH': shell.full_path(), + 'TAR': tar.full_path(), + 'TEST_OUTPUT_DIRECTORY': test_output_directory, + 'TEST_SHELL_PATH': shell.full_path(), +} + if value != '' and cygpath.found() + value = run_command(cygpath, value, check: true).stdout().strip() + endif + build_options_config.set_quoted(key, value) +endforeach + +configure_file( + input: 'GIT-BUILD-OPTIONS.in', + output: 'GIT-BUILD-OPTIONS', + configuration: build_options_config, +) + +summary({ + 'curl': curl.found(), + 'expat': expat.found(), + 'gettext': intl.found(), + 'gitweb': gitweb_option.allowed(), + 'https': https_backend, + 'iconv': iconv.found(), + 'pcre2': pcre2.found(), + 'perl': perl_features_enabled, + 'python': python.found(), +}, section: 'Auto-detected features') |