from manim import *

from git_sim.git_sim_base_command import GitSimBaseCommand

import git, sys, numpy

class GitSimRebase(GitSimBaseCommand):

def __init__(self, scene):

super().__init__(scene)

try:

git.repo.fun.rev_parse(self.repo, self.scene.args.branch[0])

except git.exc.BadName:

print("git-sim error: '" + self.scene.args.branch[0] + "' is not a valid Git ref or identifier.")

sys.exit(1)

if self.scene.args.branch[0] in [branch.name for branch in self.repo.heads]:

self.selected_branches.append(self.scene.args.branch[0])

try:

self.selected_branches.append(self.repo.active_branch.name)

except TypeError:

pass

def execute(self):

print("Simulating: git " + self.scene.args.subcommand + " " + self.scene.args.branch[0])

if self.scene.args.branch[0] in self.repo.git.branch("--contains", self.repo.active_branch.name):

print("git-sim error: Branch '" + self.repo.active_branch.name + "' is already included in the history of active branch '" + self.scene.args.branch[0] + "'.")

sys.exit(1)

if self.repo.active_branch.name in self.repo.git.branch("--contains", self.scene.args.branch[0]):

print("git-sim error: Branch '" + self.scene.args.branch[0] + "' is already based on active branch '" + self.repo.active_branch.name + "'.")

sys.exit(1)

self.show_intro()

self.get_commits(start=self.scene.args.branch[0])

self.parse_commits(self.commits[0])

self.orig_commits = self.commits

self.get_commits()

self.parse_commits(self.commits[0], shift=4*DOWN)

self.center_frame_on_commit(self.orig_commits[0])

to_rebase = []

i = 0

current = self.commits[i]

while self.scene.args.branch[0] not in self.repo.git.branch("--contains", current):

to_rebase.append(current)

i += 1

current = self.commits[i]

parent = self.orig_commits[0].hexsha

for tr in reversed(to_rebase):

parent = self.setup_and_draw_parent(parent, tr.message)

self.draw_arrow_between_commits(tr.hexsha, parent)

self.recenter_frame()

self.scale_frame()

self.reset_head_branch(parent)

self.fadeout()

self.show_outro()

def setup_and_draw_parent(self, child, commitMessage="New commit", shift=numpy.array([0., 0., 0.]), draw_arrow=True):

circle = Circle(stroke_color=RED, fill_color=RED, fill_opacity=0.25)

circle.height = 1

circle.next_to(self.drawnCommits[child], LEFT if self.scene.args.reverse else RIGHT, buff=1.5)

circle.shift(shift)

start = circle.get_center()

end = self.drawnCommits[child].get_center()

arrow = Arrow(start, end, color=self.scene.fontColor)

length = numpy.linalg.norm(start-end) - ( 1.5 if start[1] == end[1] else 3 )

arrow.set_length(length)

sha = "".join(chr(ord(letter)+1) if (chr(ord(letter)+1).isalpha() or chr(ord(letter)+1).isdigit()) else letter for letter in child[:6])

commitId = Text(sha, font="Monospace", font_size=20, color=self.scene.fontColor).next_to(circle, UP)

self.toFadeOut.add(commitId)

commitMessage = commitMessage[:40].replace("\n", " ")

message = Text('\n'.join(commitMessage[j:j+20] for j in range(0, len(commitMessage), 20))[:100], font="Monospace", font_size=14, color=self.scene.fontColor).next_to(circle, DOWN)

self.toFadeOut.add(message)

if self.scene.args.animate:

self.scene.play(self.scene.camera.frame.animate.move_to(circle.get_center()), Create(circle), AddTextLetterByLetter(commitId), AddTextLetterByLetter(message), run_time=1/self.scene.args.speed)

else:

self.scene.camera.frame.move_to(circle.get_center())

self.scene.add(circle, commitId, message)

self.drawnCommits[sha] = circle

self.toFadeOut.add(circle)

if draw_arrow:

if self.scene.args.animate:

self.scene.play(Create(arrow), run_time=1/self.scene.args.speed)

else:

self.scene.add(arrow)

self.toFadeOut.add(arrow)

return sha