Automatic push by ghp-import

.nojekyll

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+import os
+import re
+from jinja2 import Environment, FileSystemLoader, select_autoescape
+
+
+def atoi(text):
+    return int(text) if text.isdigit() else text
+
+
+def natural_keys(text):
+    return [atoi(c) for c in re.split('(\d+)', text)]
+
+
+class notebook:
+    def __init__(self, path, title):
+        # remove ../ from path
+        self.path = path.replace('../', '')
+        self.title = title
+        # set url and update from markdown to ipynb
+        self.url = url_prefix + self.path.replace(".md", ".ipynb")
+
+
+def get_title(filename):
+    """ Reads the title from a markdown notebook """
+    with open(filename, 'r') as f:
+        # get first row that starts with "# "
+        for line in f.readlines():
+            # trim leading/trailing whitespaces
+            line = line.lstrip().rstrip()
+            # check if line is the title
+            if line[0:2] == '# ':
+                # return title
+                return line[2:]
+
+
+def sort_files_titles(files, titles):
+    """ Sorts the files and titles either by filenames or titles """
+    # identify numbered files and sort them
+    nfiles = [s for s in files if s.split('/')[-1][0].isdigit()]
+    nfiles = sorted(nfiles, key=natural_keys)
+    ntitles = [titles[files.index(s)] for s in nfiles]
+    # sort the files without numbering by the alphabetic order of the titles
+    atitles = [titles[files.index(s)] for s in files if s not in nfiles]
+    atitles = sorted(atitles, key=natural_keys)
+    afiles = [files[titles.index(s)] for s in atitles]
+    # merge the numbered and unnumbered sorting
+    return nfiles + afiles, ntitles + atitles
+
+
+def get_notebooks(path):
+    """ Gets a list of all notebooks in a directory """
+    # get list of files and their titles
+    try:
+        files = [path + f for f in os.listdir(path) if f.endswith('.md')]
+    except FileNotFoundError:
+        return {}
+    titles = [get_title(f) for f in files]
+    # sort the files and titles for display
+    files_sorted, titles_sorted = sort_files_titles(files, titles)
+    # generate notebook objects from the sorted lists and return
+    notebooks = [notebook(f, t) for f, t in zip(files_sorted, titles_sorted)]
+    return notebooks
+
+
+def generate_index_html(version_directory, tutorial_directories, title,
+                        version_note):
+    """ Generates the index html file from the given data"""
+    # get tutorials from the different directories
+    tutorials = {}
+    for dir in tutorial_directories:
+        tutorials[dir] = get_notebooks(version_directory + dir + '/')
+
+    # Load environment for Jinja and template
+    env = Environment(
+        loader=FileSystemLoader("../"),
+        autoescape=select_autoescape()
+    )
+    template = env.get_template("website/index.html.jinja")
+
+    # render template and return
+    html = template.render(tutorials=tutorials, title=title,
+                           version_note=version_note)
+    return html
+
+
+# url prefix for the links
+url_prefix = "https://nbviewer.org/urls/qutip.org/qutip-tutorials/"
+# tutorial directories
+tutorial_directories = [
+    'heom',
+    'lectures',
+    'pulse-level-circuit-simulation',
+    'python-introduction',
+    'quantum-circuits',
+    'time-evolution',
+    'visualization',
+    'miscellaneous'
+]
+
+# +++ READ PREFIX AND SUFFIX +++
+prefix = ""
+suffix = ""
+
+with open('prefix.html', 'r') as f:
+    prefix = f.read()
+with open('suffix.html', 'r') as f:
+    suffix = f.read()
+
+# +++ VERSION 4 INDEX FILE +++
+title = 'Tutorials for QuTiP Version 4'
+version_note = 'This are the tutorials for QuTiP Version 4. You can \
+         find the tutorials for QuTiP Version 5 \
+          <a href="./index.html">here</a>.'
+
+html = generate_index_html('../tutorials-v4/', tutorial_directories, title,
+                           version_note)
+with open('index-v4.html', 'w+') as f:
+    f.write(prefix)
+    f.write(html)
+    f.write(suffix)
+
+# +++ VERSION 5 INDEX FILE +++
+title = 'Tutorials for QuTiP Version 5'
+version_note = 'This are the tutorials for QuTiP Version 5. You can \
+         find the tutorials for QuTiP Version 4 \
+          <a href="./index-v4.html">here</a>.'
+
+html = generate_index_html('../tutorials-v5/', tutorial_directories, title,
+                           version_note)
+with open('index.html', 'w+') as f:
+    f.write(prefix)
+    f.write(html)
+    f.write(suffix)