mirror of
https://github.com/git-learning-game/oh-my-git.git
synced 2024-11-03 19:04:40 +01:00
325 lines
7.9 KiB
GDScript
325 lines
7.9 KiB
GDScript
extends Control
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onready var nodes = $Rows/RepoVis/Nodes
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onready var label_node = $Rows/RepoVis/Label
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onready var path_node = $Rows/RepoVis/Path
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onready var simplify_checkbox = $Rows/RepoVis/SimplifyCheckbox
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export var label: String setget set_label
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export var path: String setget set_path, get_path
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export var simplified_view = true setget set_simplified_view
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export var editable_path = false setget set_editable_path
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var node = preload("res://scenes/node.tscn")
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var shell = Shell.new()
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var objects = {}
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var mouse_inside = false
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# We use this for a heuristic of when to hide trees and blobs.
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var _commit_count = 0
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func _ready():
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# Trigger these again because nodes were not ready before.
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set_label(label)
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set_simplified_view(simplified_view)
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set_editable_path(editable_path)
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set_path(path)
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update_everything()
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update_node_positions()
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func _process(_delta):
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nodes.rect_pivot_offset = nodes.rect_size / 2
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if path:
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apply_forces()
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func _unhandled_input(event):
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if event.is_action_pressed("zoom_out") and nodes.rect_scale.x > 0.3:
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nodes.rect_scale -= Vector2(0.05, 0.05)
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if event.is_action_pressed("zoom_in") and nodes.rect_scale.x < 2:
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nodes.rect_scale += Vector2(0.05, 0.05)
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func there_is_a_git():
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return shell.run("test -d .git && echo yes || echo no") == "yes\n"
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func update_everything():
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if there_is_a_git():
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update_head()
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update_refs()
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update_objects()
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remove_gone_stuff()
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else:
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for o in objects:
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objects[o].queue_free()
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objects = {}
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func set_path(new_path):
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path = new_path
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if path_node:
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path_node.text = path
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if new_path != "":
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shell.cd(new_path)
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for o in objects.values():
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o.queue_free()
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objects = {}
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if is_inside_tree():
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update_everything()
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func get_path():
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return path
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func set_label(new_label):
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label = new_label
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if label_node:
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if new_label == "yours":
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new_label = ""
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label_node.text = new_label
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func random_position():
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return Vector2(rand_range(0, rect_size.x), rand_range(0, rect_size.y))
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func update_objects():
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var all = all_objects()
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# Create new objects, if necessary.
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for o in all:
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if objects.has(o):
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continue
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var type = object_type(o)
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var n = node.instance()
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n.id = o
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n.type = object_type(o)
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n.content = object_content(o)
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n.repository = self
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match type:
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"blob":
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pass
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"tree":
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n.children = tree_children(o)
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n.content = n.content.replacen("\t", " ")
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"commit":
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var c = {}
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c[commit_tree(o)] = ""
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for p in commit_parents(o):
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c[p] = ""
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n.children = c
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_commit_count += 1
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# if _commit_count >= 3 and not simplified_view:
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# set_simplified_view(true)
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"tag":
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n.children = tag_target(o)
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n.position = find_position(n)
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nodes.add_child(n)
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objects[o] = n
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if simplified_view:
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if type == "tree" or type == "blob":
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n.hide()
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func update_node_positions():
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if there_is_a_git():
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var graph_text = shell.run("git log --graph --oneline --all --no-abbrev")
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var graph_lines = Array(graph_text.split("\n"))
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graph_lines.pop_back()
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for line_count in range(graph_lines.size()):
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var line = graph_lines[line_count]
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if "*" in line:
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var star_idx = line.find("*")
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var hash_regex = RegEx.new()
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hash_regex.compile("[a-f0-9]+")
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var regex_match = hash_regex.search(line)
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objects[regex_match.get_string()].position = Vector2((graph_lines.size()-line_count) * 100 + 500, star_idx * 100 + 500)
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for ref in all_refs():
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var target_reference = objects[ref].children.keys()[0]
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var target = objects[target_reference]
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objects[ref].position = Vector2(target.position.x ,target.position.y - 100)
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var target_reference = objects["HEAD"].children.keys()[0]
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if objects.has(target_reference):
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var target = objects[target_reference]
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objects["HEAD"].position = Vector2(target.position.x ,target.position.y - 100)
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func update_refs():
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for r in all_refs():
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if not objects.has(r):
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var n = node.instance()
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n.id = r
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n.type = "ref"
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n.content = ""
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n.repository = self
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objects[r] = n
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n.children = {ref_target(r): ""}
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n.position = find_position(n)
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nodes.add_child(n)
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var n = objects[r]
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n.children = {ref_target(r): ""}
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func apply_forces():
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for o in objects.values():
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if not o.visible:
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continue
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if o.type == "head" and o.children.size() > 0 and objects.has(o.children.keys()[0]):
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continue
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for o2 in objects.values():
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if o == o2 or not o2.visible or o2.type == "head":
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continue
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var d = o.position.distance_to(o2.position)
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var dir = (o.global_position - o2.global_position).normalized()
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var f = 2000/pow(d+0.00001,1.5)
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o.position += dir*f
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o2.position -= dir*f
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var center_of_gravity = nodes.rect_size/2
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var d = o.position.distance_to(center_of_gravity)
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var dir = (o.position - center_of_gravity).normalized()
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var f = (d+0.00001)*(Vector2(nodes.rect_size.y/10, nodes.rect_size.x/3).normalized()/30)
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o.position -= dir*f
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func find_position(n):
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var position = Vector2.ZERO
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var count = 0
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for child in n.children:
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if objects.has(child):
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position += objects[child].position
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count += 1
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if count > 0:
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position /= count
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n.position = position + Vector2(0, -150)
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else:
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n.position = random_position()
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return n.position
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func git(args, splitlines = false):
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var o = shell.run("git --no-replace-objects " + args)
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if splitlines:
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o = o.split("\n")
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# Remove last empty line.
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o.remove(len(o)-1)
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else:
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# Remove trailing newline.
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o = o.substr(0,len(o)-1)
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return o
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func update_head():
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if not objects.has("HEAD"):
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var n = node.instance()
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n.id = "HEAD"
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n.type = "head"
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n.content = ""
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n.repository = self
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n.position = find_position(n)
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objects["HEAD"] = n
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nodes.add_child(n)
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var n = objects["HEAD"]
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n.children = {ref_target("HEAD"): ""}
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func all_objects():
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var obj = git("cat-file --batch-check='%(objectname)' --batch-all-objects", true)
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var dict = {}
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for o in obj:
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dict[o] = ""
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return dict
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func object_type(id):
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return git("cat-file -t "+id)
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func object_content(id):
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return git("cat-file -p "+id)
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func tree_children(id):
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var children = git("cat-file -p "+id, true)
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var ids = {}
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for c in children:
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var a = c.split(" ")
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ids[a[2].split("\t")[0]] = a[2].split("\t")[1]
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return ids
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func commit_tree(id):
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var c = git("cat-file -p "+id, true)
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for cc in c:
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var ccc = cc.split(" ", 2)
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match ccc[0]:
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"tree":
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return ccc[1]
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return null
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func commit_parents(id):
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var parents = []
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var c = git("cat-file -p "+id, true)
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for cc in c:
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var ccc = cc.split(" ", 2)
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match ccc[0]:
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"parent":
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parents.push_back(ccc[1])
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return parents
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func tag_target(id):
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var c = git("rev-parse %s^{}" % id)
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return {c: ""}
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func all_refs():
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var refs = {}
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# If there are no refs, show-ref will have exit code 1. We don't care.
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for line in git("show-ref || true", true):
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line = line.split(" ")
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var _id = line[0]
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var name = line[1]
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refs[name] = ""
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return refs
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func ref_target(ref):
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# Test whether this is a symbolic ref.
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var ret = git("symbolic-ref -q "+ref+" || true")
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# If it's not, it's probably a regular ref.
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if ret == "":
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if ref == "HEAD":
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ret = git("show-ref --head "+ref).split(" ")[0]
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else:
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ret = git("show-ref "+ref).split(" ")[0]
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return ret
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func set_simplified_view(simplify):
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simplified_view = simplify
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if simplify_checkbox:
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simplify_checkbox.pressed = simplify
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for o in objects:
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var obj = objects[o]
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if obj.type == "tree" or obj.type == "blob":
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obj.visible = not simplify
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func set_editable_path(editable):
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editable_path = editable
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if label_node:
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label_node.visible = not editable
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if path_node:
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path_node.visible = editable
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func remove_gone_stuff():
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# FIXME: Cache the result of all_objects.
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var all = {}
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for o in all_objects():
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all[o] = ""
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for o in all_refs():
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all[o] = ""
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all["HEAD"] = ""
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# Delete objects, if they disappeared.
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for o in objects.keys():
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if not all.has(o):
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objects[o].queue_free()
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objects.erase(o)
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func _on_mouse_entered():
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mouse_inside = true
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func _on_mouse_exited():
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mouse_inside = false
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