From 52b65619e1406581c29c561bc1edc1d7fea2e3fc Mon Sep 17 00:00:00 2001
From: Peter Schaefer <schaeferpm@gmail.com>
Date: Wed, 13 Feb 2019 23:12:53 +0100
Subject: [PATCH] minor PyUpdate Fix Front parsing works basic

---
 git-log-to-tikz.py |   4 +-
 gitLog2tikz.py     | 146 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 148 insertions(+), 2 deletions(-)
 create mode 100644 gitLog2tikz.py

diff --git a/git-log-to-tikz.py b/git-log-to-tikz.py
index 629a1ac..440a3fc 100755
--- a/git-log-to-tikz.py
+++ b/git-log-to-tikz.py
@@ -120,7 +120,7 @@ r = Repo()
 # extract Commits
 cmd = "git log --branches --graph --oneline --parents"
 
-return_output = check_output(cmd, shell=True)
+return_output = check_output(cmd, shell=True, encoding='utf-8')
 #print(return_output.split("\n"))
 
 for line in return_output.split("\n"):
@@ -133,7 +133,7 @@ r.resolve_parents()
 # extract Branches
 cmd = "git branch -av | cut -b 3-"
 
-return_output = check_output(cmd, shell=True)
+return_output = check_output(cmd, shell=True, encoding='utf-8')
 #print(return_output.split("\n"))
 
 for line in return_output.split("\n"):
diff --git a/gitLog2tikz.py b/gitLog2tikz.py
new file mode 100644
index 0000000..2121f67
--- /dev/null
+++ b/gitLog2tikz.py
@@ -0,0 +1,146 @@
+from subprocess import check_output
+from collections import OrderedDict
+from re import compile, match
+
+# Importer fast fertig
+# Aber die light Variante
+
+hashpat = compile(r"[a-f0-9]{7}")
+linepat = compile(r'[^|\/\\]')
+
+
+def color(numb):
+    colors = ["black", "blue", "brown", "cyan", "darkgray", "gray", "green", "lightgray", "lime", "magenta", "olive", "orange", "pink", "purple", "red", "teal", "violet", "white", "yellow"]
+    return colors[numb % colors.__len__()]
+
+
+class Commit:
+    def __init__(self,line):
+        self._line = None
+        self._hash = None
+        self._children = {}
+        self._parents = {}
+        self._message= None
+        self._message_pos = None
+        self._node_pos = None
+        self._node_color = None
+      
+        self._line = line
+        pos = 0
+        for word in line.split(" "):
+            if self._message:
+                self._message += " " + word
+            elif hashpat.match(word):
+                if not self._hash:
+                    self._hash = word
+                else:
+                    self._parents[word] = NotImplemented
+            elif word == '*' and not self._message:
+                self._node_pos = pos
+            elif linepat.match(word):
+                self._message = word
+                self._message_pos = pos
+
+            pos = pos + 1
+        if self._hash:
+            self._message = self._message.replace("!","")
+
+    def update_parent (self, child):
+        self._parents[child._hash] = child
+        child._children[self._hash] = self
+
+    def export_to_tikz(self, ypos):
+        print("\\node[commit, " + color(self._node_pos) + ", fill=" +  color(self._node_pos) + "] (" + self._hash + ") at (" + str(.5 * self._node_pos) + "," + str(ypos) + ") {};")
+        print("\\node[right,xshift=10] (label_" + self._hash + ") at (" + self._hash + ".east) {\\verb!" + self._hash + ": " + self._message + "!};")
+        #for child in self._children.itervalues():
+        #    print("\\path[" + "blue" +"] (" + self._hash + ") to[out=90,in=-90] (" + child._hash + ");") 
+
+
+class Branch:
+    def __init__(self, line):
+        self._hash=""
+        words = line.split(" ")
+        self._name = words.pop(0)
+        while self._hash ==  "":
+            self._hash = words.pop(0)
+        self._commit = " ".join(words)
+
+    def to_s_long(self):
+        print("Name  : " + self._name)
+        print("Hash  : " + self._hash)
+        print("Commit: " + self._commit)
+
+    def to_s(self):
+        print(" ".join({self._name, self._hash, self._commit}))
+
+class Repo:
+
+    def __init__(self):
+        self._commits = OrderedDict()
+        self._branches = []
+
+    def add_commit(self, commit):
+        if commit._hash:
+            self._commits[commit._hash] = commit
+
+    def resolve_parents(self):
+        for commit in self._commits.values():
+            for key_p in commit._parents.keys():
+                commit.update_parent(self._commits[key_p])
+
+    def add_branch(self, branch):
+        if self._commits.has_key(branch._hash):
+            branch._commit = self._commits[branch._hash]
+            self._branches.append( branch)
+
+    def export_to_tikz(self):
+        print("\\begin{tikzpicture}")
+        print("\\tikzstyle{commit}=[draw,circle,fill=white,inner sep=0pt,minimum size=5pt]")
+        print("\\tikzstyle{every path}=[draw]")
+        print("\\tikzstyle{branch}=[draw,rectangle,rounded corners=3,fill=white,inner sep=2pt,minimum size=5pt]")
+        ypos = 0
+        ystep = .5
+        for commit in reversed(self._commits.values()):
+            commit.export_to_tikz(ypos)
+            ypos = ypos + ystep
+        
+        for commit in self._commits.values():
+            for child in commit._children.values():
+                print("\\path[" +  color(commit._node_pos) +"] (" + commit._hash + ") to[out=90,in=-90] (" + child._hash + ");") 
+
+        for branch in self._branches:
+            print("\\node[branch,right,xshift=10] (" + branch._name + ") at (label_" + branch._hash + ".east) {\\lstinline{" + branch._name +"}};")
+        print("\\end{tikzpicture}")
+
+# extract Commits
+cmd = "git log --branches --graph --parents"
+
+return_output = check_output(cmd, shell=True, encoding='utf-8')
+#print(return_output.split("\n"))
+
+
+for line in return_output.split("\n"):
+    if not line == "":
+
+        node_pos = -1
+        message_pos = -1
+
+        pos = 0
+        for c in line:
+            if c == '*':
+                node_pos = pos
+            elif linepat.match(c) and c != ' ':
+                message_pos = pos
+                break
+            pos = pos + 1
+
+        msg  = line[message_pos:]
+        if node_pos >= 0:
+            com = msg.split(' ')
+        else:
+            inf = msg.split(':')
+        
+
+print(node_pos + message_pos)
+
+                
-- 
2.47.3