Get some statistics from GNOME Settings (aka gnome-control-center)

gcc-analyse.py

import os

def count_lines (filename):
    f = file (filename)
    count = 0
    for line in f.readlines ():
        if not line.isspace ():
            count += 1
    return count

def pretty_branch_name (name):
    if name.startswith ('gnome-'):
        return name[6:].replace ('-', '.')
    else:
        return name

class BranchStats:
    def __init__ (self, name):
        self.name = name
        self.files = []
        self.c_lines = 0
        self.h_lines = 0
        self.ui_lines = 0
        self.build_files = []
        self.image_files = []
        self.audio_files = []
        self.data_files = []
        self.unknown_files = []

    def add_file (self, filename):
        self.files.append (filename)

    def analyse (self):
        for f in self.files:
            (dir, basename) = os.path.split (f)
            (_, ext) = os.path.splitext (basename)
            if ext == '.c':
                self.c_lines += count_lines (f)
            elif ext == '.h' or basename.endswith ('.h.in'):
                self.h_lines += count_lines (f)
            elif ext == '.ui':
                self.ui_lines += count_lines (f)
            elif basename in [ 'meson.build', 'Makefile.am', 'COPYING', 'LINGUAS', 'README', 'TODO' ] or \
                 basename.endswith ('.gresource.xml') or \
                 ext in [ '.its', '.loc', '.pro', '.py', '.rb', '.sh' ] or \
                 basename == 'test-hostname':
                self.build_files.append (f)
            elif ext in [ '.jpg', '.png', '.svg' ]:
                self.image_files.append (f)
            elif ext in [ '.ogg' ]:
                self.audio_files.append (f)
            elif basename.endswith ('.desktop.in') or basename.endswith ('.desktop.in.in') or \
                 basename.endswith ('.directory.in') or \
                 basename.endswith ('.menu.in') or \
                 basename.endswith ('.policy.in') or basename.endswith ('.policy.in.in') or \
                 basename.endswith ('.service.in') or basename.endswith ('.service.in.in') or \
                 basename.endswith ('.xml.in') or basename.endswith ('.xml.in.in') or \
                 basename.endswith ('.pc.in') or \
                 ext in [ '.css', '.ini', '.list', '.menu', '.po', '.rules', '.txt', '.xml'] or \
                 basename == 'gnome-control-center.in' or \
                 f.endswith ('datetime/backward'):
                self.data_files.append (f)
            elif basename.endswith ('~') or ext in [ '.patch' ]:
                pass # Skip
            else:
                print ('!', f)
                self.unknown_files.append (f)

class Section:
    def __init__ (self, name):
        self.name = name
        self.branches = []

    def pretty_name (self):
        return self.name[0].upper () + self.name[1:]

    def get_branch (self, name):
        for branch in self.branches:
            if branch.name == name:
                return branch
        branch = BranchStats (name)
        self.branches.append (branch)
        return branch

sections = []
def get_section (name):
    for section in sections:
        if section.name == name:
            return section
    section = Section (name)
    sections.append (section)
    sections.sort (key = lambda section: section.name)
    return section

def analyse ():
    for (root, dirs, files) in os.walk ('.'):
        # Ignore top files
        if root == '.':
            continue

        # We're only interested in files
        if len (files) == 0:
            continue

        dir_names = root.split ('/')
        dir0 = dir_names[1]

        # Ignore stuff that we're not interested in
        if dir0 in [ '.git', '.gitlab', 'build-aux', 'data', 'docs', 'gettext', 'help', 'm4', 'man', 'po', 'subprojects' ]:
            continue

        if dir0 == 'panels':
            if len (dir_names) > 2:
                name = dir_names[2]
            else:
                continue
        elif dir0 in [ 'libgnome-control-center', 'search-provider', 'shell', 'tests' ]:
            name = dir0
        else:
            print ('!', root, files)
            continue

        section = get_section (name)
        b = section.get_branch (branch)
        for f in files:
            b.add_file (root + '/' + f)

branches = ['gnome-3-0', 'gnome-3-2', 'gnome-3-4', 'gnome-3-6', 'gnome-3-8',
            'gnome-3-10', 'gnome-3-12', 'gnome-3-14', 'gnome-3-16', 'gnome-3-18',
            'gnome-3-20', 'gnome-3-22', 'gnome-3-24', 'gnome-3-26', 'gnome-3-28',
            'gnome-3-30', 'master']

for branch in branches:
    os.system ('git checkout ' + branch)
    analyse ()
    for section in sections:
        section.get_branch (branch).analyse ()

def cmp_sections (s1, s2):
    b1 = s1.get_branch ('master')
    b2 = s2.get_branch ('master')
    l1 = b1.c_lines + b1.h_lines + b1.ui_lines
    l2 = b2.c_lines + b2.h_lines + b2.ui_lines
    return l1 - l2
sections.sort (cmp_sections)

def csv_string (text):
    return '="' + text + '"'

csv_data = csv_string ('GNOME Settings Panel Breakdown') + '\n'
csv_data += csv_string ('Release')
for s in sections:
    csv_data += ',' + csv_string (s.pretty_name ())
csv_data += '\n'
for branch in branches:
    csv_data += csv_string (pretty_branch_name (branch))
    for s in sections:
        b = s.get_branch (branch)
        csv_data += ',' + str (b.c_lines + b.h_lines + b.ui_lines)
    csv_data += '\n'
file ('gcc-panel-breakdown.csv', 'w').write (csv_data)

csv_data = csv_string ('GNOME Settings Code Breakdown') + '\n'
csv_data += csv_string ('Release') + ',' + csv_string ('GtkBuilder') + ',' + csv_string ('C Code') + ',' + csv_string ('C Headers') + '\n'
for branch in branches:
    c_lines = 0
    h_lines = 0
    ui_lines = 0
    for s in sections:
        b = s.get_branch (branch)
        c_lines += b.c_lines
        h_lines += b.h_lines
        ui_lines += b.ui_lines
    csv_data += csv_string (pretty_branch_name (branch)) + ',' + str (ui_lines) + ',' + str (c_lines) + ',' + str (h_lines) + '\n'
file ('gcc-code-breakdown.csv', 'w').write (csv_data)