fix-timestamps

#!/usr/bin/env python

import os
import time
import filecmp
import stat

baseline = int(time.time()) - 3600

def set_timestamp_as_baseline(paths=[]):
    for dirname in paths:
        for root, dirs, files in os.walk(dirname):
            path = root.split(os.sep)
            for file in files:
                path = os.path.join(root, file)
                print("baseline:", path)
                os.utime(path, (baseline, baseline))

def set_timestamp_on_directory_pair(dir1, dir2, timestamp):
    diff = filecmp.dircmp(dir1, dir2)

    # For files which are the same, ensure that timestamp on file
    # in dir2 is the same as that in dir1.

    for name in diff.same_files:
        path1 = os.path.join(dir1, name)
        path2 = os.path.join(dir2, name)
        print('same:', path2)
        stats = os.stat(path1)
        os.utime(path2, (stats[stat.ST_MTIME], stats[stat.ST_MTIME]))

    for name in diff.diff_files:
        path2 = os.path.join(dir2, name)
        print('diff:', path2)
        os.utime(path2, (timestamp, timestamp))

    for dir in diff.common_dirs:
        set_timestamp_on_directory_pair(os.path.join(dir1, dir),
                os.path.join(dir2, dir), timestamp)

def set_timestamp_on_directories(dirs):
    timestamp = baseline + 60 
    current = None
    for next in dirs:
        if current is not None:
            set_timestamp_on_directory_pair(current, next, timestamp)
            timestamp += 60
        current = next

common_base_dirs = [
    "common-base-v1",
    "common-base-v2",
]

set_timestamp_as_baseline(common_base_dirs)

set_timestamp_on_directories(common_base_dirs)

flask_app_dirs = [
    "flask-app-v1",
    "flask-app-v2",
    "flask-app-v3",
    "flask-app-v4",
    "flask-app-v5",
    "flask-app-v6",
    "flask-app-v7",
    "flask-app-v8",
    "flask-app-v9",
]

set_timestamp_as_baseline(flask_app_dirs)

set_timestamp_on_directories(flask_app_dirs)

greeting_dirs = [
    "greeting-v1",
    "greeting-v2",
    "greeting-v3",
    "greeting-v4",
    "greeting-v5",
    "greeting-v6",
    "greeting-v7",
    "greeting-v8",
]

set_timestamp_as_baseline(greeting_dirs)

set_timestamp_on_directories(greeting_dirs)

python_base_dirs = [
    "python-base-v1",
    "python-base-v2",
    "python-base-v3",
    "python-base-v4",
]

set_timestamp_as_baseline(python_base_dirs)

set_timestamp_on_directories(python_base_dirs)

python_onbuild_dirs = [
    "python-onbuild-v1",
]

set_timestamp_as_baseline(python_onbuild_dirs)

set_timestamp_on_directories(python_onbuild_dirs)