def get_next_output_file_name(file_extension="ly", output_directory_path=None):
r"""Gets next output file name in output directory.
::
>>> iotools.get_next_output_file_name() # doctest: +SKIP
'6223.ly'
Gets next output file name in Abjad output directory
when `output_directory_path` is none.
Returns string.
"""
from abjad.tools import iotools
assert file_extension.isalpha() and 0 < len(file_extension) < 4, repr(file_extension)
last_output = iotools.get_last_output_file_name(output_directory_path=output_directory_path)
if last_output is None:
next_number = 0
next_output_file_name = "0000.{}".format(file_extension)
else:
last_number = int(last_output.split(".")[0])
next_number = last_number + 1
next_output_file_name = "{next_number:04d}.{file_extension}"
next_output_file_name = next_output_file_name.format(next_number=next_number, file_extension=file_extension)
if 9000 < next_number:
iotools.warn_almost_full(last_number)
return next_output_file_name
def test_iotools_get_last_output_file_name_01():
last_output_file_name = iotools.get_last_output_file_name()
assert isinstance(last_output_file_name, (str, type(None)))
if isinstance(last_output_file_name, str):
if last_output_file_name.endswith(".ly"):
assert len(last_output_file_name) == 7
elif last_output_file_name.endswith(".pdf"):
assert len(last_output_file_name) == 8
elif last_output_file_name.endswith(".mid"):
assert len(last_output_file_name) == 8
elif last_output_file_name.endswith(".midi"):
assert len(last_output_file_name) == 9
else:
raise Exception
def pdf(target=-1):
r'''Opens the last PDF generated by Abjad with ``iotools.pdf()``.
Opens the next-to-last PDF generated by Abjad with ``iotools.pdf(-2)``.
Returns none.
Abjad writes PDFs to the ``~/.abjad/output`` directory by default.
You may change this by setting the ``abjad_output`` variable in
the ``config.py`` file.
'''
from abjad import abjad_configuration
from abjad.tools import iotools
ABJADOUTPUT = abjad_configuration['abjad_output']
if isinstance(target, int) and target < 0:
last_lilypond_file_name = iotools.get_last_output_file_name()
if last_lilypond_file_name:
result = os.path.splitext(last_lilypond_file_name)
file_name_root, extension = result
last_number = file_name_root
target_number = int(last_number) + (target + 1)
target_str = '%04d' % target_number
target_pdf = os.path.join(ABJADOUTPUT, target_str + '.pdf')
else:
message = 'Target PDF does not exist.'
print message
elif isinstance(target, int) and 0 <= target:
target_str = '%04d' % target
target_pdf = os.path.join(ABJADOUTPUT, target_str + '.pdf')
elif isinstance(target, str):
target_pdf = os.path.join(ABJADOUTPUT, target)
else:
message = 'can not get target pdf name from {}.'.format(target)
raise ValueError(message)
if os.stat(target_pdf):
pdf_viewer = abjad_configuration['pdf_viewer']
iotools.open_file(target_pdf, pdf_viewer)
else:
message = 'Target PDF {} does not exist.'.format(target_pdf)
print message
def save_last_pdf_as(file_path):
r'''Saves last PDF created in Abjad as `file_path`.
::
>>> file_path = '/project/output/example-1.pdf'
>>> iotools.save_last_pdf_as(file_path) # doctest: +SKIP
Returns none.
'''
from abjad import abjad_configuration
from abjad.tools import iotools
ABJADOUTPUT = abjad_configuration['abjad_output']
last_output_file_name = iotools.get_last_output_file_name()
without_extension, extension = os.path.splitext(last_output_file_name)
last_pdf = without_extension + '.pdf'
last_pdf_full_name = os.path.join(ABJADOUTPUT, last_pdf)
old = open(last_pdf_full_name, 'r')
new = open(file_path, 'w')
new.write(''.join(old.readlines()))
old.close()
new.close()
def redo(target=-1, lily_time=10):
r"""Rerenders the last ``.ly`` file created in Abjad and
then shows the resulting PDF.
.. container:: example
**Example 1.** Redo the last LilyPond file created in Ajbad:
::
>>> iotools.redo() # doctest: +SKIP
.. container:: example
**Examle 2.** Redo the next-to-last LilyPond file created in Abjad:
::
>>> iotools.redo(-2) # doctest: +SKIP
Returns none.
"""
from abjad import abjad_configuration
from abjad.tools import iotools
current_directory = os.path.abspath(".")
abjad_output = abjad_configuration["abjad_output"]
iotools.verify_output_directory(abjad_output)
os.chdir(abjad_output)
# TODO: Encapsulate as a single function called cfg._find_target()
# find target
if isinstance(target, int) and target < 0:
last_lilypond = iotools.get_last_output_file_name()
if last_lilypond:
last_number = last_lilypond.replace(".ly", "")
last_number = last_lilypond.replace(".pdf", "")
last_number = last_number.replace(".midi", "")
last_number = last_number.replace(".mid", "")
target_number = int(last_number) + (target + 1)
target_str = "%04d" % target_number
target_ly = os.path.join(abjad_output, target_str + ".ly")
else:
print "Target LilyPond input file does not exist."
elif isinstance(target, int) and 0 <= target:
target_str = "%04d" % target
target_ly = os.path.join(abjad_output, target_str + ".ly")
elif isinstance(target, str):
target_ly = os.path.join(abjad_output, target)
else:
message = "can not get target LilyPond input from {}.".format(target)
raise ValueError(message)
# render
start_time = time.time()
iotools.run_lilypond(target_ly, abjad_configuration["lilypond_path"])
stop_time = time.time()
actual_lily_time = int(stop_time - start_time)
os.chdir(current_directory)
if lily_time <= actual_lily_time:
message = "LilyPond processing time equal to {} seconds ..."
print message.format(actual_lily_time)
# TODO: Encapsulate as cfg._open_pdf()
# open pdf
pdf_viewer = abjad_configuration["pdf_viewer"]
abjad_output = abjad_configuration["abjad_output"]
name = target_ly
iotools.open_file("%s.pdf" % name[:-3], pdf_viewer)
def ly(target=-1):
r"""Opens the last LilyPond output file in text editor.
.. container:: example
**Example 1.** Open the last LilyPond output file:
::
>>> iotools.ly() # doctest: +SKIP
::
% Abjad revision 2162
% 2009-05-31 14:29
\version "2.12.2"
\include "english.ly"
{
c'4
}
.. container:: example
**Example 2.** Open the next-to-last LilyPond output file:
::
>>> iotools.ly(-2) # doctest: +SKIP
Returns none.
"""
from abjad import abjad_configuration
from abjad.tools import iotools
ABJADOUTPUT = abjad_configuration["abjad_output"]
text_editor = abjad_configuration.get_text_editor()
if isinstance(target, int) and target < 0:
last_lilypond = iotools.get_last_output_file_name()
if last_lilypond:
last_number = last_lilypond
last_number = last_number.replace(".ly", "")
last_number = last_number.replace(".pdf", "")
last_number = last_number.replace(".midi", "")
last_number = last_number.replace(".mid", "")
target_number = int(last_number) + (target + 1)
target_str = "%04d" % target_number
target_ly = os.path.join(ABJADOUTPUT, target_str + ".ly")
else:
print "Target LilyPond input file does not exist."
elif isinstance(target, int) and 0 <= target:
target_str = "%04d" % target
target_ly = os.path.join(ABJADOUTPUT, target_str + ".ly")
elif isinstance(target, str):
target_ly = os.path.join(ABJADOUTPUT, target)
else:
message = "can not get target LilyPond input from {}."
message = message.format(target)
raise ValueError(message)
if os.stat(target_ly):
command = "{} {}".format(text_editor, target_ly)
iotools.spawn_subprocess(command)
else:
message = "Target LilyPond input file {} does not exist."
message = message.format(target_ly)
print message
