def init(caf):
"""
Initialize the Caf repository.
Usage:
caf init
By default create directory in .caf/db. If 'cache' is defined in
~/.config/caf/conf.yaml, the repository is created there and symlinked to
.caf/db, otherwise it is created locally.
"""
if 'cache' in caf.conf:
timestamp = get_timestamp()
cache_path = Path(caf.conf['cache'])/'{}_{}'.format(Path().resolve().name, timestamp)
mkdir(cache_path)
relink(cache_path, caf.cache, relative=False)
else:
cache_path = caf.cache
if cache_path.exists():
error('{} exists, cannot overwrite'.format(cache_path))
mkdir(cache_path)
info('Initializing an empty repository at {}.'.format(cache_path))
mkdir(caf.cellar)
mkdir(caf.brewery)
with open('.gitignore', 'w') as f:
f.write('\n'.join(['.caf']))
with open(os.devnull, 'w') as null:
sp.call(['git', 'init'], stdout=null)
sp.call(['git', 'add', 'caf', 'cscript.py', '.gitignore'], stdout=null)
sp.call(['git', 'commit', '-m', 'initial commit'], stdout=null)
def build(caf, dry: '--dry', do_init: 'init'):
"""
Prepare tasks and targets defined in cscript.
Usage:
caf [init] build [--dry]
Options:
-n, --dry Dry run (do not write to disk).
Tasks are created in .caf/db/Brewery/Latest and if their preparation does
not depened on unfinished tasks, they are prepared and stored in
.caf/db/Cellar based on their SHA1 hash. Targets (collections of symlinks to
tasks) are created in ./build.
"""
if not hasattr(caf.cscript, 'build'):
error('cscript has to contain function build(ctx)')
if do_init:
init(['caf', 'init'], caf)
ctx = Context(caf.cache/cellar, caf.top, caf.libpath)
with timing('dependency tree'):
caf.cscript.build(ctx)
if not dry:
timestamp = get_timestamp()
mkdir(caf.brewery/timestamp)
relink(timestamp, caf.brewery/latest, relative=False)
with timing('build'):
ctx.build(caf.brewery/latest)
if caf.out.is_dir():
shutil.rmtree(str(caf.out))
mkdir(caf.out)
with timing('targets'):
ctx.make_targets(caf.out, caf.cache)
if hasattr(caf.cscript, 'json'):
warn('Make sure json is not printing dictionaries in features')
with open(os.devnull, 'w') as null:
sp.call(['git', 'add', '--all', 'build'], stdout=null)
sp.call(['git', 'commit', '-a', '-m', '#build'], stdout=null)
