ya2/build/build.py

   1 '''Tools for making the builds.'''
   2 from os import walk, chdir, getcwd
   3 from os.path import join, exists, dirname, getmtime, sep
   4 from subprocess import PIPE, run
   5 from time import strftime
   6 from pathlib import Path
   7 from hashlib import md5
   8
   9
  10 # TODO refactor: make class BuilderTools
  11
  12
  13 def exec_cmd(cmd, check=True):
  14     '''Synchronously executes a command and returns its output.'''
  15     # ret = Popen(cmd, stdout=PIPE, stderr=PIPE, shell=True).communicate()
  16     # return ret[0].decode('utf-8').strip()
  17     proc = run(cmd, shell=True, stdout=PIPE, stderr=PIPE, universal_newlines=True, check=check)
  18     return proc.stdout.strip() + proc.stderr.strip()
  19
  20
  21 def _branch():
  22     '''Returns the current branch.'''
  23     git_branch = exec_cmd('git symbolic-ref HEAD').split('/')[-1].strip()
  24     print(f'git_branch result: {git_branch}')
  25     branches = ['master', 'rc', 'stable']
  26     if git_branch in branches:
  27         print(f'git_branch: {git_branch}')
  28         return git_branch
  29     root = str(Path(dirname(dirname(__file__))).parent) + '/'
  30     if 'itch' in __file__.split(sep):
  31         root = str(Path(dirname(__file__))) + '/'
  32     if __file__ == '/app/bin/pmachines':  # flatpak
  33         root = '/app/bin/'
  34     for __branch in branches:
  35         try:
  36             print(f'try: {root}' + 'assets/bld_version.txt')
  37             with open(root + 'assets/bld_version.txt', encoding='utf8') as fver:
  38                 __ver = fver.read()
  39                 print(f'ver: {__ver}')
  40             # if __branch in __ver:
  41             b2c = {'master': 'a', 'rc': 'r', 'stable': '.'}
  42             if __ver[1] == b2c[__branch]:
  43                 return __branch
  44         except FileNotFoundError:
  45             print(f'file not found: {root}' + 'assets/bld_version.txt')
  46     return ''
  47
  48
  49 def _commit():
  50     '''Returns the current branch.'''
  51     git_commit = exec_cmd('git rev-parse HEAD')[:7]
  52     print(f'git_commit result: {git_commit}')
  53     if not git_commit.startswith("Can't r"):
  54         return git_commit
  55     root = str(Path(dirname(dirname(__file__))).parent) + '/'
  56     if 'itch' in __file__.split(sep):
  57         root = str(Path(dirname(__file__))) + '/'
  58     if __file__ == '/app/bin/pmachines':  # flatpak
  59         root = '/app/bin/'
  60     try:
  61         print(f'try: {root}' + 'assets/bld_version.txt')
  62         with open(root + 'assets/bld_version.txt', encoding='utf8') as fver:
  63             __ver = fver.read()
  64             print(f'ver: {__ver}')
  65             return __ver.split('-')[1]
  66     except FileNotFoundError:
  67         print(f'file not found: {root}' + 'assets/bld_version.txt')
  68     return ''
  69
  70
  71 def _version():
  72     '''Computes the version of the current build.'''
  73     day = strftime('%y%m%d')
  74     root = str(Path(dirname(dirname(__file__))).parent) + '/'
  75     if __file__ == '/app/bin/pmachines':  # flatpak
  76         root = '/app/bin/'
  77     if _branch() == 'stable':
  78         pref, _ver = '', ''
  79         if exists(root + 'assets/version.txt'):
  80             with open(root + 'assets/version.txt', encoding='utf8') as fver:
  81                 pref = fver.read().strip() + '-'  # + _branch() + '-'
  82                 _ver = fver.read().strip()
  83         ret_ver = _ver or ('0.' + day)
  84     else:
  85         # try:  we want an error!
  86         pref = {'master': 'a', 'rc': 'rc', '': 'runtime'}[_branch()]
  87         # except KeyError:
  88         #    pref = 'notfound'
  89         ret_ver = f'0{pref}{day}'
  90         pref = ret_ver
  91     bld_ver = pref + '-' + _commit()
  92     try:
  93         with open(root + 'assets/bld_version.txt', 'w', encoding='utf8') as fver:
  94             fver.write(bld_ver)
  95     except OSError:
  96         print("we can't write inside flatpaks, but we don't need it")
  97     return ret_ver
  98
  99
 100 def files(_extensions, excl_dirs=None, excl_ends_with=None, root_path='.'):
 101     '''Retrieves filenames in root_path with _extensions, with filters.'''
 102     return [join(root, fname)
 103             for root, _, fnames in walk(root_path)
 104             for fname in __files_ext(fnames, _extensions)
 105             if not any(e_d in root.split('/') for e_d in excl_dirs or []) and
 106             not any(fname.endswith(e_e) for e_e in excl_ends_with or [])]
 107
 108
 109 def __files_ext(fnames, _extensions):
 110     return [fname for fname in fnames
 111             if any(fname.endswith('.' + ext) for ext in _extensions)]
 112
 113
 114 def __to_be_built_single(src, tgt):
 115     if getmtime(tgt) > getmtime(src):
 116         print(f'{tgt} is newer than {src}: do not build')
 117         return False
 118     with open(src, 'rb') as fsrc:
 119         src_content = fsrc.read()
 120     with open(tgt, 'rb') as ftgt:
 121         tgt_content = ftgt.read()
 122     hash_src = md5(src_content).hexdigest()
 123     hash_tgt = md5(tgt_content).hexdigest()
 124     cache = {}
 125     lines = []
 126     if exists('hash_cache.txt'):
 127         with open('hash_cache.txt', encoding='utf8') as fhash:
 128             lines = fhash.readlines()
 129     for line in lines:
 130         line_spl = line.split()
 131         _hash = line_spl[-1]
 132         fname = ' '.join(line_spl[:-1])
 133         cache[fname] = _hash
 134     if src in cache and tgt in cache:
 135         if hash_src == cache[src] and \
 136            hash_tgt == cache[tgt]:
 137             print(f'{tgt} and {src} are in the cache: do not build')
 138             return False
 139     print(f'{src} and {tgt} are not up-to-date: building...')
 140     return True
 141
 142
 143 def to_be_built(tgt, srcs):
 144     '''Should tgt be built (i.e. is it older?) from sources srcs?'''
 145     if not exists(tgt):
 146         print(tgt + ' does not exist: building...')
 147         return True
 148     return any(__to_be_built_single(src, tgt) for src in srcs)
 149
 150
 151 class InsideDir:
 152     '''Context manager for working inside a directory.'''
 153
 154     def __init__(self, dir_):
 155         self.dir = dir_
 156         self.old_dir = getcwd()
 157
 158     def __enter__(self):
 159         chdir(self.dir)
 160
 161     def __exit__(self, exc_type, exc_val, exc_tb):
 162         chdir(self.old_dir)
 163
 164
 165 # bld_dpath = 'build/'
 166 # branch = _branch()
 167 # ver = _version()
 168 # win_fpath = '{dst_dir}{appname}-' + f'{branch}-windows.exe'
 169 # osx_fpath = '{dst_dir}{appname}-%s-osx.zip' % branch
 170 # flatpak_fpath = '{dst_dir}{appname}-%s-flatpak' % branch
 171 # appimage_fpath = '{dst_dir}{appname}-' + f'{branch}-appimage'
 172 # docs_fpath = '{dst_dir}{appname}-%s-docs.tar.gz' % branch