PEP8 happiness (almost)
This commit is contained in:
parent
ed2d3ed42a
commit
e87b60252a
413
git-sound.py
413
git-sound.py
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@ -1,10 +1,33 @@
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#! /usr/bin/env python
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# -*- coding: utf-8
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"""
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Generate sound for Git repositories
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"""
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from __future__ import print_function
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import argparse
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import sys
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import os
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try:
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import pygame
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import pygame.mixer
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PYGAME_AVAILABLE = True
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except ImportError:
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PYGAME_AVAILABLE = False
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try:
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import gi
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gi.require_version('Gtk', '3.0')
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from gi.repository import Gtk
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from gi.repository import GLib
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GTK_AVAILABLE = True
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except ImportError:
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GTK_AVAILABLE = False
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import shutil
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from midiutil.MidiFile import MIDIFile
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@ -14,7 +37,7 @@ from git import Repo
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from git.objects.blob import Blob
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from git.exc import InvalidGitRepositoryError
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scales = {
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SCALES = {
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'c-major': ('C Major', [60, 62, 64, 65, 67, 69, 71]),
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'a-harmonic-minor': ('A Harmonic Minor', [68, 69, 71, 72, 74, 76, 77]),
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'chromatic': ('Chromatic', [60, 61, 62, 63, 64, 65, 66, 67, 68, 69]),
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@ -22,7 +45,7 @@ scales = {
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'd-major': ('D Major', [62, 64, 65, 67, 69, 71, 72]),
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}
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programs = {
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PROGRAMS = {
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'sitar-tablah': {
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'name': 'Sitar and Tablah',
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'commit': {
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@ -94,44 +117,88 @@ programs = {
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def get_file_sha(commit, file_name):
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elements = file_name.split(os.sep)
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t = commit.tree
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"""
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Get the SHA1 ID of a file by its name, in the given commit.
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"""
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elements = file_name.split(os.sep)
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tree = commit.tree
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while True:
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try:
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t = t[elements.pop(0)]
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tree = tree[elements.pop(0)]
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except (KeyError, IndexError):
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# The file has been deleted, return the hash of an empty file
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return 'e69de29bb2d1d6434b8b29ae775ad8c2e48c5391'
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if isinstance(t, Blob):
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if isinstance(tree, Blob):
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break
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return t.hexsha
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return tree.hexsha
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class GitSoundWindow(object):
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"""
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GIU class for git-sound.
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"""
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def __init__(self):
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import gi
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gi.require_version('Gtk', '3.0')
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from gi.repository import Gtk
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self.Gtk = Gtk
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from gi.repository import GLib
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self.GLib = GLib
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self.builder = self.Gtk.Builder()
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self.builder = Gtk.Builder()
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self.builder.add_from_file('git-sound.ui')
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self.win = self.builder.get_object('main-window')
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self.play_button = self.builder.get_object('play-button')
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self.stop_button = self.builder.get_object('stop-button')
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self.vol_spin = self.builder.get_object('vol-spin')
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self.program_combo = self.builder.get_object('program-combo')
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self.progressbar = self.builder.get_object('generate-progress')
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self.branch_combo = self.builder.get_object('branch-combo')
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self.statusbar = self.builder.get_object('statusbar')
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self.pos_label = self.builder.get_object('position-label')
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self.skip_spin = self.builder.get_object('skip-spin')
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self.scale_combo = self.builder.get_object('scale-combo')
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self.chooser_button = self.builder.get_object('repo-chooser')
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def read_branches(self, chooser_button):
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self.gitmidi = None
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repo_path = chooser_button.get_file().get_path()
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program_store = self.builder.get_object('program-list')
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for program_id, program in PROGRAMS.items():
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program_store.append([program['name'], program_id])
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renderer = Gtk.CellRendererText()
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self.program_combo.pack_start(renderer, True)
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self.program_combo.add_attribute(renderer, "text", 0)
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scale_store = self.builder.get_object('scale-list')
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for scale_id, scale in SCALES.items():
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scale_store.append([scale[0], scale_id])
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renderer = Gtk.CellRendererText()
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self.scale_combo.pack_start(renderer, True)
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self.scale_combo.add_attribute(renderer, "text", 0)
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self.builder.connect_signals({
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'read_branches': lambda button: self.read_branches(),
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'settings_changed': lambda button: self.settings_changed(),
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'generate_repo': lambda button: self.generate_repo(),
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'play_midi': lambda button: self.play_midi(),
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'stop_midi': lambda button: self.stop_midi(),
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'save_midi': lambda button: self.save_midi(),
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})
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self.win.connect("delete-event", Gtk.main_quit)
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def read_branches(self):
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"""
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Callback for the repository chooser. Upon change, this reads
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all the branches from the selected repository.
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"""
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# Make sure the Play, Stop and Save buttons are disabled
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self.gitmidi = None
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repo_path = self.chooser_button.get_file().get_path()
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self.branch_combo.remove_all()
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self.branch_combo.set_button_sensitivity(False)
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self.set_buttons_sensitivity(disable_all=True)
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@ -139,11 +206,11 @@ class GitSoundWindow(object):
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try:
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repo = Repo(repo_path)
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except InvalidGitRepositoryError:
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dialog = self.Gtk.MessageDialog(
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chooser_button.get_toplevel(),
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self.Gtk.DialogFlags.MODAL,
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self.Gtk.MessageType.ERROR,
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self.Gtk.ButtonsType.OK,
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dialog = Gtk.MessageDialog(
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self.chooser_button.get_toplevel(),
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Gtk.DialogFlags.MODAL,
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Gtk.MessageType.ERROR,
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Gtk.ButtonsType.OK,
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"{} is not a valid Git repository".format(
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repo_path))
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@ -160,16 +227,31 @@ class GitSoundWindow(object):
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self.branch_combo.append_text(head.name)
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def set_status(self, text):
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"""
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Change the status bar text.
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"""
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self.statusbar.push(self.statusbar.get_context_id("git-sound"), text)
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def settings_changed(self, button):
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def settings_changed(self):
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"""
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Callback to use if anything MIDI-related is changed
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(repository, branch, scale or program).
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"""
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self.gitmidi = None
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self.set_buttons_sensitivity()
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self.stop_midi()
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def set_buttons_sensitivity(self, disable_all=False):
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"""
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Set buttons sensitivity based on different conditions.
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It checks if a repository and a branch is selected or if MIDI
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data is already generated.
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"""
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generate_button = self.builder.get_object('generate-button')
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stop_button = self.builder.get_object('stop-button')
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save_button = self.builder.get_object('save-button')
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if disable_all:
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@ -198,9 +280,12 @@ class GitSoundWindow(object):
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self.stop_button.set_sensitive(False)
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save_button.set_sensitive(False)
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def generate_repo(self, button):
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chooser_button = self.builder.get_object('repo-chooser')
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repo_path = chooser_button.get_file().get_path()
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def generate_repo(self):
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"""
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Generate repository data for MIDI data.
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"""
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repo_path = self.chooser_button.get_file().get_path()
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branch_selected = self.branch_combo.get_active_text()
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program_selected = self.program_combo.get_active_id()
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scale_selected = self.scale_combo.get_active_id()
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@ -213,8 +298,8 @@ class GitSoundWindow(object):
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self.gitmidi = GitMIDI(repository=repo_path,
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branch=branch_selected,
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verbose=False,
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scale=scales[scale_selected][1],
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program=programs[program_selected],
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scale=SCALES[scale_selected][1],
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program=PROGRAMS[program_selected],
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volume_range=vol_deviation,
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skip=skip)
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@ -225,15 +310,24 @@ class GitSoundWindow(object):
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self.set_buttons_sensitivity(disable_all=False)
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def genrepo_cb(self, max_count=None, current=None):
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"""
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Generate repository data. This is called when the user presses
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the Generate button.
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"""
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if max_count is None or current is None:
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self.progressbar.pulse()
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else:
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self.progressbar.set_fraction(current / max_count)
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# Make sure the progress bar gets updated
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self.Gtk.main_iteration_do(False)
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Gtk.main_iteration_do(False)
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def update_play_pos(self):
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"""
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Update playback position label.
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"""
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if self.gitmidi is None:
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return
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@ -257,88 +351,73 @@ class GitSoundWindow(object):
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return True
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def play_midi(self):
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"""
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Start MIDI playback.
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"""
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self.set_status(u"Playing…")
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self.gitmidi.play(track=True)
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self.GLib.timeout_add_seconds(1, self.update_play_pos)
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GLib.timeout_add_seconds(1, self.update_play_pos)
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self.play_button.set_sensitive(False)
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self.stop_button.set_sensitive(True)
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def stop_midi(self):
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"""
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Stop MIDI playback.
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"""
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if self.gitmidi is not None:
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self.gitmidi.stop()
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def __save(self, dialog, response_id):
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if response_id == self.Gtk.ResponseType.OK:
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"""
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Do the actual MIDI saving after the user chose a file.
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"""
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if response_id == Gtk.ResponseType.OK:
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save_file = dialog.get_file().get_path()
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dialog.destroy()
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self.gitmidi.export_file(save_file)
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def save_midi(self):
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dialog = self.Gtk.FileChooserDialog(
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"""
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Save MIDI data.
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"""
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dialog = Gtk.FileChooserDialog(
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u"Save As…",
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self.win,
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self.Gtk.FileChooserAction.SAVE,
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("Save", self.Gtk.ResponseType.OK))
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Gtk.FileChooserAction.SAVE,
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("Save", Gtk.ResponseType.OK))
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dialog.set_do_overwrite_confirmation(True)
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dialog.connect('response', self.__save)
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dialog.run()
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def start(self):
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program_store = self.builder.get_object('program-list')
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self.program_combo = self.builder.get_object('program-combo')
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"""
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Start the GUI.
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"""
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for program_id, program in programs.items():
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program_store.append([program['name'], program_id])
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renderer = self.Gtk.CellRendererText()
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self.program_combo.pack_start(renderer, True)
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self.program_combo.add_attribute(renderer, "text", 0)
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scale_store = self.builder.get_object('scale-list')
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self.scale_combo = self.builder.get_object('scale-combo')
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for scale_id, scale in scales.items():
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scale_store.append([scale[0], scale_id])
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renderer = self.Gtk.CellRendererText()
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self.scale_combo.pack_start(renderer, True)
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self.scale_combo.add_attribute(renderer, "text", 0)
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self.branch_combo = self.builder.get_object('branch-combo')
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self.statusbar = self.builder.get_object('statusbar')
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self.pos_label = self.builder.get_object('position-label')
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self.skip_spin = self.builder.get_object('skip-spin')
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self.vol_spin = self.builder.get_object('vol-spin')
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self.builder.connect_signals({
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'read_branches': lambda button: self.read_branches(button),
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'settings_changed': lambda button: self.settings_changed(button),
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'generate_repo': lambda button: self.generate_repo(button),
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'play_midi': lambda button: self.play_midi(),
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'stop_midi': lambda button: self.stop_midi(),
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'save_midi': lambda button: self.save_midi(),
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})
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self.progressbar = self.builder.get_object('generate-progress')
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self.win.connect("delete-event", self.Gtk.main_quit)
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self.win.show_all()
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self.Gtk.main()
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Gtk.main()
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sys.exit(0)
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def start_gui():
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win = GitSoundWindow()
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win.start()
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class GitMIDI(MIDIFile):
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"""
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Class to hold repository data, and MIDI data based on that repository.
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"""
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LOG_CHANNEL = 0
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FILE_CHANNEL = 1
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def __setup_midi(self, track_title=None):
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"""
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Initialise the MIDI file.
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"""
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if self.__verbose:
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print("Preparing MIDI track…")
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@ -346,8 +425,7 @@ class GitMIDI(MIDIFile):
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# TODO: Change this to something that connects to the repo
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self.addTrackName(0, 0, "Sample Track")
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# TODO: Make this configurable
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self.addTempo(0, 0, 120)
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self.addTempo(0, 0, self.__tempo)
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if self.__need_commits:
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self.addProgramChange(0, self.LOG_CHANNEL,
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@ -358,32 +436,38 @@ class GitMIDI(MIDIFile):
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0, self.__program['file']['program'])
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def __setup_repo(self):
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"""
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Setup repository and get the specified branch.
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"""
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if self.__verbose:
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print("Analyzing repository…")
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repo = Repo(self.__repo_dir)
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self.branch_head = repo.heads[self.__branch].commit
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self.__branch_head = repo.heads[self.__branch].commit
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def __init__(self,
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repository='.',
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branch='master',
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repository=None,
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branch=None,
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verbose=False,
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scale=None,
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program=None,
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volume_range=107,
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skip=0,
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note_duration=0.3)
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note_duration=0.3,
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max_beat_len=None,
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tempo=120):
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MIDIFile.__init__(self, 1)
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self.__verbose = verbose
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self.__written = False
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self.__repo_dir = repository
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self.__repo_dir = repository or '.'
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self.__repo = None
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self.__branch = branch
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self.branch_head = None
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self.__branch = branch or 'master'
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self.__branch_head = None
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self.__repo_data = None
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self.git_log = []
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self.mem_file = StringIO()
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self.__git_log = []
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self.__mem_file = StringIO()
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self.__scale = scale
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self.__program = program
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self.__volume_deviation = min(abs(63 - volume_range), 63)
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@ -391,6 +475,8 @@ class GitMIDI(MIDIFile):
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self.__playing = False
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self.__skip = skip
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self.__note_duration = note_duration
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self.__max_beat_len = max_beat_len or 0.3
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self.__tempo = tempo
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self.__need_commits = self.__program['commit']['program'] is not None
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self.__need_files = self.__program['file']['program'] is not None
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@ -413,12 +499,20 @@ class GitMIDI(MIDIFile):
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63 - deletions + insertions + modifier))
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def sha_to_note(self, sha):
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"""
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Calculate note based on an SHA1 hash
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"""
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note_num = reduce(lambda res, digit: res + int(digit, 16),
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list(str(sha)), 0) % len(self.__scale)
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return self.__scale[note_num]
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def gen_beat(self, commit, callback=None):
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"""
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Generate data for a beat based on a commit and its files.
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"""
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stat = commit.stats
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file_notes = []
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@ -428,12 +522,15 @@ class GitMIDI(MIDIFile):
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callback(max_count=None, current=None)
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volume_mod = self.__program['file'].get('volume', 0)
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file_notes.append({
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'note': self.sha_to_note(get_file_sha(commit, file_name)) +
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self.__program['file']['octave'] * 12,
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'volume': self.gen_volume(file_stat['deletions'],
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file_note = self.sha_to_note(get_file_sha(commit, file_name)) + \
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self.__program['file']['octave'] * 12
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file_volume = self.gen_volume(file_stat['deletions'],
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file_stat['insertions'],
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volume_mod),
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||||
volume_mod)
|
||||
|
||||
file_notes.append({
|
||||
'note': file_note,
|
||||
'volume': file_volume,
|
||||
})
|
||||
|
||||
if callback is not None:
|
||||
|
|
@ -443,7 +540,7 @@ class GitMIDI(MIDIFile):
|
|||
|
||||
return {
|
||||
'commit_note': self.sha_to_note(commit.hexsha) +
|
||||
self.__program['commit']['octave'] * 12,
|
||||
self.__program['commit']['octave'] * 12,
|
||||
'commit_volume': self.gen_volume(stat.total['deletions'],
|
||||
stat.total['insertions'],
|
||||
volume_mod),
|
||||
|
|
@ -465,7 +562,7 @@ class GitMIDI(MIDIFile):
|
|||
|
||||
self.__repo_data = []
|
||||
counter = 0
|
||||
to_process = [self.branch_head]
|
||||
to_process = [self.__branch_head]
|
||||
|
||||
while len(to_process) > 0:
|
||||
counter += 1
|
||||
|
|
@ -474,14 +571,14 @@ class GitMIDI(MIDIFile):
|
|||
if counter % 500 == 0 and self.__verbose:
|
||||
print("Done with {} commits".format(counter))
|
||||
|
||||
commit = to_process.pop()
|
||||
current_commit = to_process.pop()
|
||||
|
||||
if callback is not None:
|
||||
callback(max_count=None, current=None)
|
||||
|
||||
if not commit in self.__repo_data:
|
||||
self.__repo_data.append(commit)
|
||||
to_process += commit.parents
|
||||
if current_commit not in self.__repo_data:
|
||||
self.__repo_data.append(current_commit)
|
||||
to_process += current_commit.parents
|
||||
|
||||
if self.__verbose:
|
||||
print("{} commits found".format(counter))
|
||||
|
|
@ -492,32 +589,45 @@ class GitMIDI(MIDIFile):
|
|||
if self.__verbose:
|
||||
print("Generating MIDI data…")
|
||||
|
||||
self.git_log = map(
|
||||
lambda commit: self.gen_beat(
|
||||
commit,
|
||||
callback=callback),
|
||||
self.__repo_data[self.__skip:])
|
||||
self.__git_log = [self.gen_beat(commit, callback=callback)
|
||||
for commit in self.__repo_data[self.__skip:]]
|
||||
|
||||
@property
|
||||
def repo_data(self):
|
||||
"""
|
||||
Get repository data for MIDI generation.
|
||||
"""
|
||||
|
||||
if self.__repo_data is None:
|
||||
self.gen_repo_data(force=True)
|
||||
|
||||
return self.__repo_data
|
||||
|
||||
def write_mem(self):
|
||||
self.writeFile(self.mem_file)
|
||||
"""
|
||||
Write MIDI data to the memory file.
|
||||
"""
|
||||
|
||||
self.writeFile(self.__mem_file)
|
||||
self.__written = True
|
||||
|
||||
def export_file(self, filename):
|
||||
"""
|
||||
Export MIDI data to a file.
|
||||
"""
|
||||
|
||||
if not self.__written:
|
||||
self.write_mem()
|
||||
|
||||
with open(filename, 'w') as f:
|
||||
self.mem_file.seek(0)
|
||||
shutil.copyfileobj(self.mem_file, f)
|
||||
with open(filename, 'w') as midi_file:
|
||||
self.__mem_file.seek(0)
|
||||
shutil.copyfileobj(self.__mem_file, midi_file)
|
||||
|
||||
def generate_midi(self, callback=None):
|
||||
"""
|
||||
Generate MIDI data.
|
||||
"""
|
||||
|
||||
if self.__verbose:
|
||||
print("Creating MIDI…")
|
||||
|
||||
|
|
@ -526,11 +636,11 @@ class GitMIDI(MIDIFile):
|
|||
log_channel = 0
|
||||
decor_channel = 1
|
||||
|
||||
log_length = len(self.git_log)
|
||||
log_length = len(self.__git_log)
|
||||
current = 0
|
||||
|
||||
# WRITE THE SEQUENCE
|
||||
for section in self.git_log:
|
||||
for section in self.__git_log:
|
||||
current += 1
|
||||
section_len = len(section['file_notes']) * self.__note_duration
|
||||
|
||||
|
|
@ -553,52 +663,72 @@ class GitMIDI(MIDIFile):
|
|||
time += section_len
|
||||
|
||||
def __init_pygame(self):
|
||||
if self.__pygame_inited:
|
||||
"""
|
||||
Initialise pygame.
|
||||
"""
|
||||
|
||||
if not PYGAME_AVAILABLE or self.__pygame_inited:
|
||||
return
|
||||
|
||||
# Import pygame stuff here
|
||||
import pygame
|
||||
import pygame.mixer
|
||||
|
||||
self.pygame = pygame
|
||||
self.mixer = pygame.mixer
|
||||
|
||||
# PLAYBACK
|
||||
# Initialise pygame
|
||||
pygame.init()
|
||||
pygame.mixer.init()
|
||||
|
||||
def play(self, track=False):
|
||||
"""
|
||||
Start MIDI playback. If pygame is not available, don’t do anything.
|
||||
"""
|
||||
|
||||
if not PYGAME_AVAILABLE:
|
||||
return "pygame is not available, cannot start playback"
|
||||
|
||||
if self.__verbose:
|
||||
print("Playing!")
|
||||
|
||||
self.__init_pygame()
|
||||
|
||||
self.mem_file.seek(0)
|
||||
self.mixer.music.load(self.mem_file)
|
||||
self.mixer.music.play()
|
||||
self.__mem_file.seek(0)
|
||||
pygame.mixer.music.load(self.__mem_file)
|
||||
pygame.mixer.music.play()
|
||||
self.__playing = True
|
||||
|
||||
if not track:
|
||||
while self.mixer.music.get_busy():
|
||||
while pygame.mixer.music.get_busy():
|
||||
sleep(1)
|
||||
|
||||
self.__playing = False
|
||||
|
||||
def stop(self):
|
||||
self.mixer.music.stop()
|
||||
"""
|
||||
Stop MIDI playback.
|
||||
"""
|
||||
|
||||
if not PYGAME_AVAILABLE:
|
||||
return
|
||||
|
||||
pygame.mixer.music.stop()
|
||||
|
||||
def get_play_pos(self):
|
||||
"""
|
||||
Get current playback position from the mixer
|
||||
"""
|
||||
|
||||
if not self.__playing:
|
||||
return None
|
||||
|
||||
if self.mixer.music.get_busy():
|
||||
return self.mixer.music.get_pos()
|
||||
if pygame.mixer.music.get_busy():
|
||||
return pygame.mixer.music.get_pos()
|
||||
else:
|
||||
self.__playing = False
|
||||
|
||||
return None
|
||||
|
||||
if __name__ == '__main__':
|
||||
|
||||
def main():
|
||||
"""
|
||||
Main function, used if we are not imported.
|
||||
"""
|
||||
|
||||
parser = argparse.ArgumentParser(description='Voice of a Repo',
|
||||
epilog='Use the special value list for ' +
|
||||
'scale and program to list the ' +
|
||||
|
|
@ -644,8 +774,10 @@ if __name__ == '__main__':
|
|||
|
||||
args = parser.parse_args()
|
||||
|
||||
if args.scale is None and args.program is None:
|
||||
start_gui()
|
||||
if args.scale is None and args.program is None and GTK_AVAILABLE:
|
||||
GitSoundWindow().start()
|
||||
|
||||
sys.exit(0)
|
||||
|
||||
if args.scale is None and args.program != 'list':
|
||||
print("Please specify a scale!")
|
||||
|
|
@ -658,24 +790,24 @@ if __name__ == '__main__':
|
|||
sys.exit(1)
|
||||
|
||||
if args.scale == 'list':
|
||||
for scale in scales.keys():
|
||||
for scale in SCALES.keys():
|
||||
print(scale)
|
||||
|
||||
sys.exit(0)
|
||||
|
||||
if args.program == 'list':
|
||||
for program in programs.keys():
|
||||
for program in PROGRAMS.keys():
|
||||
print(program)
|
||||
|
||||
sys.exit(0)
|
||||
|
||||
if args.scale not in scales:
|
||||
if args.scale not in SCALES:
|
||||
print("{} is an unknown scale.".format(args.scale))
|
||||
print("Use 'list' to list the available scales.")
|
||||
|
||||
sys.exit(1)
|
||||
|
||||
if args.program not in programs:
|
||||
if args.program not in PROGRAMS:
|
||||
print("{} is an unknown program.".format(args.program))
|
||||
print("Use 'list' to list the available programs.")
|
||||
|
||||
|
|
@ -685,13 +817,13 @@ if __name__ == '__main__':
|
|||
repo_midi = GitMIDI(repository=args.repository,
|
||||
branch=args.branch,
|
||||
verbose=args.verbose,
|
||||
scale=scales[args.scale][1],
|
||||
program=programs[args.program],
|
||||
scale=SCALES[args.scale][1],
|
||||
program=PROGRAMS[args.program],
|
||||
volume_range=args.volume_range,
|
||||
skip=args.skip)
|
||||
|
||||
except InvalidGitRepositoryError:
|
||||
print("{} is not a valid Git repository" \
|
||||
print("{} is not a valid Git repository"
|
||||
.format(os.path.abspath(args.repository)))
|
||||
|
||||
sys.exit(1)
|
||||
|
|
@ -713,3 +845,6 @@ if __name__ == '__main__':
|
|||
|
||||
if args.play:
|
||||
repo_midi.play()
|
||||
|
||||
if __name__ == '__main__':
|
||||
main()
|
||||
|
|
|
|||
Loading…
Reference in New Issue