From d822334fddffabd81fb3b4b7670519c7bac31c74 Mon Sep 17 00:00:00 2001
From: Ivan Kravets <me@ikravets.com>
Date: Tue, 16 Jan 2018 00:57:06 +0200
Subject: [PATCH] Drop "python-dateutil" dependency, implement light-weight
 "parse_date"

---
 platformio/commands/lib.py | 23 +++++++++++++++--------
 platformio/managers/lib.py |  5 ++---
 platformio/util.py         | 18 ++++++++++++------
 setup.py                   |  1 -
 4 files changed, 29 insertions(+), 18 deletions(-)

diff --git a/platformio/commands/lib.py b/platformio/commands/lib.py
index 5f6e2271..87f87d7c 100644
--- a/platformio/commands/lib.py
+++ b/platformio/commands/lib.py
@@ -15,8 +15,8 @@
 # pylint: disable=too-many-branches, too-many-locals
 
 import json
+import time
 from os.path import isdir, join
-from time import sleep
 from urllib import quote
 
 import click
@@ -250,7 +250,7 @@ def lib_search(query, json_output, page, noninteractive, **filters):
                 result['perpage'],
                 fg="yellow")
             click.echo()
-            sleep(5)
+            time.sleep(5)
         elif not click.confirm("Show next libraries?"):
             break
         result = get_api_result(
@@ -322,7 +322,10 @@ def lib_show(library, json_output):
     click.echo(lib['description'])
     click.echo()
 
-    click.echo("Version: {name}, released {released}".format(**lib['version']))
+    click.echo(
+        "Version: %s, released %s" %
+        (lib['version']['name'],
+         time.strftime("%c", util.parse_date(lib['version']['released']))))
     click.echo("Manifest: %s" % lib['confurl'])
     for key in ("homepage", "repository", "license"):
         if key not in lib or not lib[key]:
@@ -357,10 +360,12 @@ def lib_show(library, json_output):
         blocks.append(("Compatible %s" % key, [i['title'] for i in lib[key]]))
     blocks.append(("Headers", lib['headers']))
     blocks.append(("Examples", lib['examples']))
-    blocks.append(
-        ("Versions",
-         ["{name}, released {released}".format(**v) for v in lib['versions']]))
-    blocks.append(("Downloads", [
+    blocks.append(("Versions", [
+        "%s, released %s" %
+        (v['name'], time.strftime("%c", util.parse_date(v['released'])))
+        for v in lib['versions']
+    ]))
+    blocks.append(("Unique Downloads", [
         "Today: %s" % lib['dlstats']['day'],
         "Week: %s" % lib['dlstats']['week'],
         "Month: %s" % lib['dlstats']['month']
@@ -419,7 +424,9 @@ def lib_stats(json_output):
         click.echo((printitemdate_tpl
                     if "date" in item else printitem_tpl).format(
                         name=click.style(item['name'], fg="cyan"),
-                        date=item.get("date"),
+                        date=str(
+                            time.strftime("%c", util.parse_date(item['date']))
+                            if "date" in item else ""),
                         url=click.style(
                             "http://platformio.org/lib/show/%s/%s" %
                             (item['id'], quote(item['name'])),
diff --git a/platformio/managers/lib.py b/platformio/managers/lib.py
index f822fab9..09c5ef12 100644
--- a/platformio/managers/lib.py
+++ b/platformio/managers/lib.py
@@ -21,7 +21,6 @@ from glob import glob
 from os.path import isdir, join
 
 import click
-from dateutil.parser import parse as parse_date
 
 from platformio import app, commands, exception, util
 from platformio.managers.package import BasePkgManager
@@ -157,8 +156,8 @@ class LibraryManager(BasePkgManager):
     def max_satisfying_repo_version(self, versions, requirements=None):
 
         def _cmp_dates(datestr1, datestr2):
-            date1 = parse_date(datestr1)
-            date2 = parse_date(datestr2)
+            date1 = util.parse_date(datestr1)
+            date2 = util.parse_date(datestr2)
             if date1 == date2:
                 return 0
             return -1 if date1 < date2 else 1
diff --git a/platformio/util.py b/platformio/util.py
index 270952af..53c23918 100644
--- a/platformio/util.py
+++ b/platformio/util.py
@@ -22,13 +22,13 @@ import socket
 import stat
 import subprocess
 import sys
+import time
 from functools import wraps
 from glob import glob
 from os.path import (abspath, basename, dirname, expanduser, isdir, isfile,
                      join, normpath, splitdrive)
 from shutil import rmtree
 from threading import Thread
-from time import sleep, time
 
 import click
 import requests
@@ -159,10 +159,10 @@ class throttle(object):
 
         @wraps(fn)
         def wrapper(*args, **kwargs):
-            diff = int(round((time() - self.last) * 1000))
+            diff = int(round((time.time() - self.last) * 1000))
             if diff < self.threshhold:
-                sleep((self.threshhold - diff) * 0.001)
-            self.last = time()
+                time.sleep((self.threshhold - diff) * 0.001)
+            self.last = time.time()
             return fn(*args, **kwargs)
 
         return wrapper
@@ -541,7 +541,7 @@ def get_mdns_services():
 
     items = []
     with mDNSListener() as mdns:
-        sleep(3)
+        time.sleep(3)
         for service in mdns.get_services():
             items.append({
                 "type":
@@ -651,7 +651,7 @@ def get_api_result(url, params=None, data=None, auth=None, cache_valid=None):
                     "[API] ConnectionError: {0} (incremented retry: max={1}, "
                     "total={2})".format(e, max_retries, total),
                     fg="yellow")
-            sleep(2 * total)
+            time.sleep(2 * total)
 
     raise exception.APIRequestError(
         "Could not connect to PlatformIO API Service. "
@@ -737,6 +737,12 @@ def items_in_list(needle, haystack):
     return set(needle) & set(haystack)
 
 
+def parse_date(datestr):
+    if "T" in datestr and "Z" in datestr:
+        return time.strptime(datestr, "%Y-%m-%dT%H:%M:%SZ")
+    return time.strptime(datestr)
+
+
 def rmtree_(path):
 
     def _onerror(_, name, __):
diff --git a/setup.py b/setup.py
index 63df8dc9..b4b8b1aa 100644
--- a/setup.py
+++ b/setup.py
@@ -22,7 +22,6 @@ install_requires = [
     "click>=5,<6",
     "colorama",
     "lockfile>=0.9.1,<0.13",
-    "python-dateutil",
     "pyserial>=3,<4,!=3.3",
     "requests>=2.4.0,<3",
     "semantic_version>=2.5.0,<3"