Add meson build system.

.github/workflows/ci.yaml

@@ -18,3 +18,12 @@ jobs:
          - uses: actions/checkout@v1
          - run: xbps-install -Sy clang make bearssl-devel
          - run: CC=clang ci/run.sh
+   clang-musl-meson:
+      runs-on: ubuntu-latest
+      container: voidlinux/voidlinux-musl
+      steps:
+         - uses: actions/checkout@v1
+         - run: |
+            xbps-install -Syu || xbps-install -yu xbps
+            xbps-install -y clang meson ninja bearssl-devel
+         - run: CC=clang ci/run-meson.sh

.gitignore

@@ -1,6 +1,7 @@
 purr
 tests
 gemi
+build/
 *.o
 *.a
 *.d

README.md

@@ -21,7 +21,15 @@ You can build and install the project with the commands below:
 ```
 $ ./configure # creates config.mk
 $ make
-$ make install PREFIX=$HOME/.local/bin
+$ make install PREFIX=$HOME/.local
+```
+
+Alternatively, you can use the Meson build system:
+
+```
+$ meson build --prefix $HOME/.local
+$ ninja -C build
+$ ninja -C install
 ```
 
 ## Programs

ci/run-meson.sh

@@ -0,0 +1,4 @@
+#!/bin/sh -x
+meson build/
+ninja -C build/ all
+RATELIMIT=1 ninja -C build/ test

meson.build

@@ -0,0 +1,72 @@
+project('purr-c', 'c',
+  version : '0.1',
+  default_options : ['warning_level=3'])
+
+compiler = meson.get_compiler('c')
+
+bearssl = compiler.find_library('bearssl', required: true)
+
+gnu_source = '#define _GNU_SOURCE'
+getrandom = compiler.has_header_symbol('sys/random.h', 'getrandom')
+arc4random = compiler.has_header_symbol('stdlib.h', 'arc4random')
+gnu_progname = compiler.has_header_symbol(
+  'errno.h',
+  'program_invocation_short_name',
+  prefix: gnu_source
+)
+bsd_progname = compiler.has_header_symbol('stdlib.h', 'getprogname')
+sock_cloexec = compiler.has_header_symbol('sys/socket.h', 'SOCK_CLOEXEC')
+pipe2 = compiler.has_header_symbol('unistd.h', 'pipe2', prefix: gnu_source)
+
+args = []
+if arc4random
+  args += '-DHAVE_ARC4RANDOM'
+elif getrandom
+  args += '-DHAVE_GETRANDOM'
+else
+  error('no random buf impl')
+endif
+if bsd_progname
+  args += '-DHAVE_GETPROGNAME'
+elif gnu_progname
+  args += '-DHAVE_PROG_INVOCATION'
+elif
+  error('no progname impl')
+endif
+if sock_cloexec
+  args += '-DHAVE_SOCK_CLOEXEC_H'
+endif
+if pipe2
+  args += '-DHAVE_PIPE2'
+endif
+add_project_arguments(args, language: 'c')
+
+purrlib = static_library(
+  'purrlib',
+  'mmap_file.c',
+  'gemini.c',
+  'read_certs.c',
+  'urls.c',
+  'files.c',
+  'pager.c',
+  'comm.c',
+  'formats.c',
+  'encrypt.c',
+  'socket.c',
+)
+
+executable('purr', 'purr.c', link_with: purrlib, dependencies: bearssl, install: true)
+executable('gemi', 'gemi.c', link_with: purrlib, dependencies: bearssl, install: true)
+
+command = 'ln -sf purr ${DESTDIR}/${MESON_INSTALL_PREFIX}/@0@/@1@'
+meson.add_install_script('sh', '-c', command.format(get_option('bindir'), 'meow'))
+meson.add_install_script('sh', '-c', command.format(get_option('bindir'), 'meowd'))
+
+tests = executable('tests', 'tests.c', link_with: purrlib, dependencies: bearssl, install: false)
+test('library-tests', tests)
+test(
+  'executable-tests',
+  find_program('test.sh'),
+  args: meson.current_source_dir() / 'README.md',
+  workdir: meson.current_build_dir()
+)

test.sh

@@ -1,4 +1,5 @@
 #!/bin/sh
+readme="${1:-README.md}"
 EXIT=
 assert () {
 	if [ "$1" != "$2" ]; then
@@ -21,15 +22,15 @@ r="$(./purr r https://www.wikipedia.org | xbps-digest)"
 assert "$e" "$r"
 
 echo "Pastebin and retrieve - unencrypted"
-e="$(xbps-digest README.md)"
-r="$(./purr r $(./purr s README.md) | xbps-digest)"
+e="$(xbps-digest "$readme")"
+r="$(./purr r $(./purr s "$readme") | xbps-digest)"
 assert "$e" "$r"
 
 rate_limit
 
 echo "Pastebin and retrieve - encrypted"
-e="$(xbps-digest README.md)"
-r="$(./purr -e r $(./purr -e s README.md) | xbps-digest)"
+e="$(xbps-digest "$readme")"
+r="$(./purr -e r $(./purr -e s "$readme") | xbps-digest)"
 assert "$e" "$r"
 
 # TODO: find some reliable way of testing gemi