Add Meson

-Werror is dropped, because Meson's werror is more strict than configure
one.

This implementation does not support running tests. The Kyua testsuite
heavily relies on in-source builds. Tests would have to be rewritten
(at least the Kyuafile files, but probably more) to support Meson.

Meson does not support retrieving git info and providing it as a
compiler flag. Meson's vcs_tag() mechanism supports outputting to
a (header or source) file only. This would mean that xbps.h.in would
have to be modified.

No substitution is done on xbps.h.in. See #598 for explanation.

_DEFAULT_SOURCE is dropped, because _GNU_SOURCE implies _DEFAULT_SOURCE.

-D_FILE_OFFSET_BITS=64 is set automatically by Meson.

Work in progress!

.gitignore

@@ -35,6 +35,11 @@ tests/*/*/*_test
 tests/*/*/*_tests
 include/xbps.h
 
+subprojects/libarchive-*
+subprojects/openssl-*
+subprojects/packagecache
+subprojects/zlib-*
+
 # vim backup files
 .*.swp
 *~

bin/meson.build

@@ -0,0 +1,19 @@
+subdir('xbps-alternatives')
+subdir('xbps-create')
+subdir('xbps-dgraph')
+subdir('xbps-install')
+subdir('xbps-pkgdb')
+subdir('xbps-query')
+subdir('xbps-reconfigure')
+subdir('xbps-remove')
+subdir('xbps-rindex')
+subdir('xbps-uhelper')
+subdir('xbps-checkvers')
+subdir('xbps-fbulk')
+subdir('xbps-digest')
+subdir('xbps-fetch')
+
+if host_machine.system() == 'linux'
+  subdir('xbps-uchroot')
+  subdir('xbps-uunshare')
+endif

bin/xbps-alternatives/meson.build

@@ -0,0 +1,4 @@
+src = ['main.c']
+
+install_man('xbps-alternatives.1')
+executable('xbps-alternatives', src, dependencies: libxbps_dep, install: true)

bin/xbps-checkvers/meson.build

@@ -0,0 +1,10 @@
+src = ['main.c']
+
+install_man('xbps-checkvers.1')
+executable(
+  'xbps-checkvers',
+  src,
+  c_args: '-Wno-deprecated-declarations',
+  dependencies: libxbps_dep,
+  install: true,
+)

bin/xbps-create/meson.build

@@ -0,0 +1,4 @@
+src = ['main.c']
+
+install_man('xbps-create.1')
+executable('xbps-create', src, dependencies: libxbps_dep, install: true)

bin/xbps-dgraph/meson.build

@@ -0,0 +1,4 @@
+src = ['main.c']
+
+install_man('xbps-dgraph.1')
+executable('xbps-dgraph', src, dependencies: libxbps_dep, install: true)

bin/xbps-digest/meson.build

@@ -0,0 +1,4 @@
+src = ['main.c']
+
+install_man('xbps-digest.1')
+executable('xbps-digest', src, dependencies: libxbps_dep, install: true)

bin/xbps-fbulk/meson.build

@@ -0,0 +1,4 @@
+src = ['main.c']
+
+install_man('xbps-fbulk.1')
+executable('xbps-fbulk', src, dependencies: libxbps_dep, install: true)

bin/xbps-fetch/meson.build

@@ -0,0 +1,4 @@
+src = ['main.c', '../xbps-install/fetch_cb.c']
+
+install_man('xbps-fetch.1')
+executable('xbps-fetch', src, dependencies: libxbps_dep, install: true)

bin/xbps-install/meson.build

@@ -0,0 +1,50 @@
+src = [
+  'main.c',
+  'transaction.c',
+  'question.c',
+  'fetch_cb.c',
+  'state_cb.c',
+  'util.c',
+]
+
+clock_gettime_code = '''
+#include <time.h>
+int main(void) {
+	struct timespec ts;
+	clock_gettime(CLOCK_MONOTONIC, &ts);
+	return 0;
+}
+'''
+
+CC = meson.get_compiler('c')
+
+rt = CC.find_library('rt', required: false)
+extra_flags = []
+
+if rt.found()
+  if CC.compiles(
+    clock_gettime_code,
+    name: 'clock_gettime() available',
+    args: '-D_GNU_SOURCE',
+    dependencies: rt,
+  )
+    extra_flags = '-DHAVE_CLOCK_GETTIME'
+  endif
+else
+  if CC.compiles(
+    clock_gettime_code,
+    name: 'clock_gettime() available',
+    args: '-D_GNU_SOURCE',
+  )
+    extra_flags = '-DHAVE_CLOCK_GETTIME'
+  endif
+endif
+
+install_man('xbps-install.1')
+executable(
+  'xbps-install',
+  src,
+  c_args: extra_flags,
+  dependencies: libxbps_dep,
+  install: true,
+)

bin/xbps-pkgdb/meson.build

@@ -0,0 +1,12 @@
+src = [
+  'main.c',
+  'check.c',
+  'check_pkg_files.c',
+  'check_pkg_alternatives.c',
+  'check_pkg_rundeps.c',
+  'check_pkg_symlinks.c',
+  'check_pkg_unneeded.c',
+]
+
+install_man('xbps-pkgdb.1')
+executable('xbps-pkgdb', src, dependencies: libxbps_dep, install: true)

bin/xbps-query/meson.build

@@ -0,0 +1,12 @@
+src = [
+  'main.c',
+  'list.c',
+  'show-deps.c',
+  'show-info-files.c',
+  'ownedby.c',
+  'search.c',
+  '../xbps-install/util.c',
+]
+
+install_man('xbps-query.1')
+executable('xbps-query', src, dependencies: libxbps_dep, install: true)

bin/xbps-reconfigure/meson.build

@@ -0,0 +1,4 @@
+src = ['main.c', 'find-deps.c']
+
+install_man('xbps-reconfigure.1')
+executable('xbps-reconfigure', src, dependencies: libxbps_dep, install: true)

bin/xbps-remove/meson.build

@@ -0,0 +1,10 @@
+src = [
+  'main.c',
+  'clean-cache.c',
+  '../xbps-install/question.c',
+  '../xbps-install/util.c',
+  '../xbps-install/transaction.c',
+]
+
+install_man('xbps-remove.1')
+executable('xbps-remove', src, dependencies: libxbps_dep, install: true)

bin/xbps-rindex/meson.build

@@ -0,0 +1,11 @@
+src = [
+  'main.c',
+  'index-add.c',
+  'index-clean.c',
+  'remove-obsoletes.c',
+  'repoflush.c',
+  'sign.c',
+]
+
+install_man('xbps-rindex.1')
+executable('xbps-rindex', src, dependencies: libxbps_dep, install: true)

bin/xbps-uchroot/meson.build

@@ -0,0 +1,4 @@
+src = ['main.c']
+
+install_man('xbps-uchroot.1')
+executable('xbps-uchroot', src, dependencies: libxbps_dep, install: true)

bin/xbps-uhelper/meson.build

@@ -0,0 +1,4 @@
+src = ['main.c', '../xbps-install/fetch_cb.c']
+
+install_man('xbps-uhelper.1')
+executable('xbps-uhelper', src, dependencies: libxbps_dep, install: true)

bin/xbps-uunshare/meson.build

@@ -0,0 +1,4 @@
+src = ['main.c']
+
+install_man('xbps-uunshare.1')
+executable('xbps-uunshare', src, dependencies: libxbps_dep, install: true)

data/meson.build

@@ -0,0 +1,39 @@
+install_man('xbps.d.5')
+install_data(
+  '60:ae:0c:d6:f0:95:17:80:bc:93:46:7a:89:af:a3:2d.plist',
+  install_dir: dbdir,
+)
+install_data(
+  'repod-main.conf',
+  'xbps.conf',
+  install_dir: get_option('datadir') / 'xbps.d',
+  rename: ['00-repository-main.conf', 'xbps.conf'],
+)
+install_data(
+  '_xbps',
+  '_xbps_src',
+  install_dir: get_option('datadir') / 'zsh/site-functions',
+)
+install_data(
+  'xbps.bash',
+  install_dir: get_option('datadir') / 'bash-completion/completions',
+  rename: 'xbps',
+)
+
+foreach file : [
+  'xbps-checkvers',
+  'xbps-create',
+  'xbps-dgraph',
+  'xbps-install',
+  'xbps-pkgdb',
+  'xbps-query',
+  'xbps-reconfigure',
+  'xbps-remove',
+  'xbps-rindex',
+]
+  install_symlink(
+    file,
+    pointing_to: 'xbps',
+    install_dir: get_option('datadir') / 'bash-completion/completions',
+  )
+endforeach

doc/meson.build

@@ -0,0 +1,39 @@
+doxygen = find_program('doxygen', required: true)
+graphviz_dot = find_program('dot', required: true)
+
+dot_format = get_option('api-docs-format')
+
+foreach dotfile : [
+  'xbps_transaction_dictionary',
+  'xbps_pkgdb_dictionary',
+  'xbps_pkg_props_dictionary',
+  'xbps_pkg_files_dictionary',
+  'xbps_binary_pkg_content',
+]
+  custom_target(
+    command: [graphviz_dot, '-T' + dot_format, '@INPUT@', '-o', '@OUTPUT@'],
+    input: dotfile + '.dot',
+    output: dotfile + '.' + dot_format,
+    build_by_default: true,
+  )
+endforeach
+
+sed = find_program('sed', required: true)
+distver = get_option('api-docs-distver')
+if distver == ''
+  command = [
+    'sh',
+    '-c',
+    sed.full_path() + ' -e \'s|@@PROJECT_NUMBER@@|$(date +%Y%m%d)|\' @INPUT@',
+  ]
+else
+  command = [sed, '-e', 's|@@PROJECT_NUMBER@@|' + distver + '|', '@INPUT@']
+endif
+xbps_api_doxyfile = custom_target(
+  command: command,
+  input: 'xbps_api_doxyfile.in',
+  capture: true,
+  output: 'xbps_api_doxyfile',
+)
+
+run_target('doxygen', command: [doxygen, xbps_api_doxyfile])

include/meson.build

@@ -0,0 +1,11 @@
+configure_file(
+  input: 'xbps.h.in',
+  output: 'xbps.h',
+  copy: true,
+  install: true,
+  install_dir: get_option('includedir'),
+)
+
+install_subdir('xbps', install_dir: get_option('includedir'))
+
+xbps_include = include_directories('.')

lib/compat/meson.build

@@ -0,0 +1,19 @@
+compat_functions = []
+
+if not compatibility_functions['vasprintf']
+  compat_functions += 'vasprintf.c'
+endif
+if not compatibility_functions['strcasestr']
+  compat_functions += 'strcasestr.c'
+endif
+if not compatibility_functions['strlcpy']
+  compat_functions += 'strlcpy.c'
+endif
+if not compatibility_functions['strlcat']
+  compat_functions += 'strlcat.c'
+endif
+if not compatibility_functions['humanize_number']
+  compat_functions += 'humanize_number.c'
+endif
+
+compat_files = files(compat_functions)

lib/external/meson.build

@@ -0,0 +1 @@
+external_files = files('dewey.c', 'fexec.c', 'mkpath.c')

lib/fetch/meson.build

@@ -0,0 +1,27 @@
+src = ['common.c', 'fetch.c', 'file.c', 'ftp.c', 'http.c']
+
+ftperr = custom_target(
+  'ftperr',
+  command: [files('errlist.sh'), 'ftp_errlist', 'FTP', '@INPUT@'],
+  capture: true,
+  input: 'ftp.errors',
+  output: 'ftperr.h',
+)
+
+httperr = custom_target(
+  'httperr',
+  command: [files('errlist.sh'), 'http_errlist', 'HTTP', '@INPUT@'],
+  capture: true,
+  input: 'http.errors',
+  output: 'httperr.h',
+)
+
+libfetch = static_library(
+  'fetch',
+  src,
+  ftperr,
+  httperr,
+  c_args: ['-DFTP_COMBINE_CWDS', '-DINET6', '-DWITH_SSL'],
+  gnu_symbol_visibility: 'hidden',
+  include_directories: [xbps_include, '.'],
+)