feat: move the date to a single argument

BREAKING CHANGE: the --day, --month and --year arguments have been removed in the
favor of a single one.

.scripts/tests-e2e.sh

@@ -77,20 +77,24 @@ assertSuccess "$PYTHON_BIN setup.py sdist"
 assertSuccess "$PIP_BIN install dist/kosmorro-$VERSION.tar.gz" "CI"
 
 assertSuccess kosmorro
+assertSuccess "kosmorro -h"
+assertSuccess "kosmorro -d 2020-01-27"
+assertFailure "kosmorro -d yolo-yo-lo"
+assertFailure "kosmorro -d 2020-13-32"
 assertSuccess "kosmorro --latitude=50.5876 --longitude=3.0624"
-assertSuccess "kosmorro --latitude=50.5876 --longitude=3.0624 -d 27 -m 1 -y 2020"
-assertSuccess "kosmorro --latitude=50.5876 --longitude=3.0624 -d 27 -m 1 -y 2020 --timezone=1"
-assertSuccess "kosmorro --latitude=50.5876 --longitude=3.0624 -d 27 -m 1 -y 2020 --timezone=-1"
-assertSuccess "kosmorro --latitude=50.5876 --longitude=3.0624 -d 27 -m 1 -y 2020 --format=json"
-assertFailure "kosmorro --latitude=50.5876 --longitude=3.0624 -d 27 -m 1 -y 2020 --format=pdf"
+assertSuccess "kosmorro --latitude=50.5876 --longitude=3.0624 -d 2020-01-27"
+assertSuccess "kosmorro --latitude=50.5876 --longitude=3.0624 -d 2020-01-27 --timezone=1"
+assertSuccess "kosmorro --latitude=50.5876 --longitude=3.0624 -d 2020-01-27 --timezone=-1"
+assertSuccess "kosmorro --latitude=50.5876 --longitude=3.0624 -d 2020-01-27 --format=json"
+assertFailure "kosmorro --latitude=50.5876 --longitude=3.0624 -d 2020-01-27 --format=pdf"
 # Missing dependencies, should fail
-assertFailure "kosmorro --latitude=50.5876 --longitude=3.0624 -d 27 -m 1 -y 2020 --format=pdf -o /tmp/document.pdf"
+assertFailure "kosmorro --latitude=50.5876 --longitude=3.0624 -d 2020-01-27 --format=pdf -o /tmp/document.pdf"
 
 assertSuccess "sudo apt-get install -y texlive" "CI"
 assertSuccess "$PIP_BIN install latex" "CI"
 
 # Dependencies installed, should not fail
-assertSuccess "kosmorro --latitude=50.5876 --longitude=3.0624 -d 27 -m 1 -y 2020 --format=pdf -o /tmp/document.pdf"
+assertSuccess "kosmorro --latitude=50.5876 --longitude=3.0624 -d 2020-01-27 --format=pdf -o /tmp/document.pdf"
 
 # man page
 assertSuccess "man --pager=cat kosmorro"

kosmorrolib/ephemerides.py

@@ -47,7 +47,7 @@ def get_sun(self, start_time, end_time) -> dict:
         return {'rise': sunrise, 'set': sunset}
 
     @staticmethod
-    def get_moon_phase(year, month, day) -> MoonPhase:
+    def get_moon_phase(compute_date: datetime.date) -> MoonPhase:
         earth = get_skf_objects()['earth']
         moon = get_skf_objects()['moon']
         sun = get_skf_objects()['sun']
@@ -61,9 +61,9 @@ def moon_phase_at(time: Time):
 
         moon_phase_at.rough_period = 7.0  # one lunar phase per week
 
-        today = get_timescale().utc(year, month, day)
-        time1 = get_timescale().utc(year, month, day - 10)
-        time2 = get_timescale().utc(year, month, day + 10)
+        today = get_timescale().utc(compute_date.year, compute_date.month, compute_date.day)
+        time1 = get_timescale().utc(compute_date.year, compute_date.month, compute_date.day - 10)
+        time2 = get_timescale().utc(compute_date.year, compute_date.month, compute_date.day + 10)
 
         times, phase = find_discrete(time1, time2, moon_phase_at)
 
@@ -116,9 +116,9 @@ def is_risen(time: Time) -> bool:
     def is_leap_year(year: int) -> bool:
         return (year % 4 == 0 and year % 100 > 0) or (year % 400 == 0)
 
-    def compute_ephemerides_for_day(self, year: int, month: int, day: int) -> dict:
-        return {'moon_phase': self.get_moon_phase(year, month, day),
-                'details': [self.get_asters_ephemerides_for_aster(aster, datetime.date(year, month, day), self.position)
+    def compute_ephemerides_for_day(self, compute_date: datetime.date) -> dict:
+        return {'moon_phase': self.get_moon_phase(compute_date),
+                'details': [self.get_asters_ephemerides_for_aster(aster, compute_date, self.position)
                             for aster in ASTERS] if self.position is not None else []}
 
     def compute_ephemerides_for_month(self, year: int, month: int) -> [dict]:
@@ -167,11 +167,5 @@ def get_seasons(year: int) -> dict:
 
         return seasons
 
-    def compute_ephemerides(self, year: int, month: int, day: int):
-        if day is not None:
-            return self.compute_ephemerides_for_day(year, month, day)
-
-        if month is not None:
-            return self.compute_ephemerides_for_month(year, month)
-
-        return self.compute_ephemerides_for_year(year)
+    def compute_ephemerides(self, compute_date: datetime.date):
+        return self.compute_ephemerides_for_day(compute_date)

kosmorrolib/locales/messages.pot

@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: kosmorro 0.6.0\n"
 "Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
-"POT-Creation-Date: 2020-03-01 14:20+0100\n"
+"POT-Creation-Date: 2020-03-04 08:05+0100\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -185,100 +185,95 @@ msgid ""
 "information."
 msgstr ""
 
-#: kosmorrolib/main.py:58
+#: kosmorrolib/main.py:55
 msgid ""
 "Save the planet and paper!\n"
 "Consider printing you PDF document only if really necessary, and use the "
 "other side of the sheet."
 msgstr ""
 
-#: kosmorrolib/main.py:62
+#: kosmorrolib/main.py:59
 msgid ""
 "PDF output will not contain the ephemerides, because you didn't provide "
 "the observation coordinate."
 msgstr ""
 
-#: kosmorrolib/main.py:84
+#: kosmorrolib/main.py:81
 msgid "Could not save the output in \"{path}\": {error}"
 msgstr ""
 
-#: kosmorrolib/main.py:89
+#: kosmorrolib/main.py:86
 msgid "Selected output format needs an output file (--output)."
 msgstr ""
 
-#: kosmorrolib/main.py:106
+#: kosmorrolib/main.py:94
+msgid "The date {date} does not match the required YYYY-MM-DD format."
+msgstr ""
+
+#: kosmorrolib/main.py:99
+msgid "The date {date} is not valid: {error}"
+msgstr ""
+
+#: kosmorrolib/main.py:113
 msgid "Running on Python {python_version}"
 msgstr ""
 
-#: kosmorrolib/main.py:112
+#: kosmorrolib/main.py:119
 msgid "Do you really want to clear Kosmorro's cache? [yN] "
 msgstr ""
 
-#: kosmorrolib/main.py:119
+#: kosmorrolib/main.py:126
 msgid "Answer did not match expected options, cache not cleared."
 msgstr ""
 
-#: kosmorrolib/main.py:128
+#: kosmorrolib/main.py:135
 msgid ""
 "Compute the ephemerides and the events for a given date, at a given "
 "position on Earth."
 msgstr ""
 
-#: kosmorrolib/main.py:130
+#: kosmorrolib/main.py:137
 msgid ""
 "By default, only the events will be computed for today ({date}).\n"
 "To compute also the ephemerides, latitude and longitude arguments are "
 "needed."
 msgstr ""
 
-#: kosmorrolib/main.py:135
+#: kosmorrolib/main.py:142
 msgid "Show the program version"
 msgstr ""
 
-#: kosmorrolib/main.py:137
+#: kosmorrolib/main.py:144
 msgid "Delete all the files Kosmorro stored in the cache."
 msgstr ""
 
-#: kosmorrolib/main.py:139
+#: kosmorrolib/main.py:146
 msgid "The format under which the information have to be output"
 msgstr ""
 
-#: kosmorrolib/main.py:141
+#: kosmorrolib/main.py:148
 msgid "The observer's latitude on Earth"
 msgstr ""
 
-#: kosmorrolib/main.py:143
+#: kosmorrolib/main.py:150
 msgid "The observer's longitude on Earth"
 msgstr ""
 
-#: kosmorrolib/main.py:145
-msgid ""
-"A number between 1 and 28, 29, 30 or 31 (depending on the month). The day"
-" you want to  compute the ephemerides for. Defaults to {default_day} (the"
-" current day)."
-msgstr ""
-
-#: kosmorrolib/main.py:149
-msgid ""
-"A number between 1 and 12. The month you want to compute the ephemerides "
-"for. Defaults to {default_month} (the current month)."
-msgstr ""
-
 #: kosmorrolib/main.py:152
 msgid ""
-"The year you want to compute the ephemerides for. Defaults to "
-"{default_year} (the current year)."
+"The date for which the ephemerides must be computed (in the YYYY-MM-DD "
+"format). Defaults to the current date ({default_date})"
 msgstr ""
 
-#: kosmorrolib/main.py:155
+#: kosmorrolib/main.py:156
 msgid "The timezone to display the hours in (e.g. 2 for UTC+2 or -3 for UTC-3)."
 msgstr ""
 
-#: kosmorrolib/main.py:157
+#: kosmorrolib/main.py:158
 msgid "Disable the colors in the console."
 msgstr ""
 
-#: kosmorrolib/main.py:159
+#: kosmorrolib/main.py:160
 msgid ""
 "A file to export the output to. If not given, the standard output is "
 "used. This argument is needed for PDF format."

kosmorrolib/main.py

@@ -40,14 +40,11 @@ def main():
     if args.special_action is not None:
         return 0 if args.special_action() else 1
 
-    year = args.year
-    month = args.month
-    day = args.day
-
-    compute_date = date(year, month, day)
-
-    if day is not None and month is None:
-        month = date.today().month
+    try:
+        compute_date = get_date(args.date)
+    except ValueError as error:
+        print(colored(error.args[0], color='red', attrs=['bold']))
+        return -1
 
     if args.latitude is None or args.longitude is None:
         position = None
@@ -64,7 +61,7 @@ def main():
 
     try:
         ephemeris = EphemeridesComputer(position)
-        ephemerides = ephemeris.compute_ephemerides(year, month, day)
+        ephemerides = ephemeris.compute_ephemerides(compute_date)
 
         events_list = events.search_events(compute_date)
 
@@ -92,6 +89,16 @@ def main():
     return 0
 
 
+def get_date(yyyymmdd: str) -> date:
+    if not re.match(r'^\d{4}-\d{2}-\d{2}$', yyyymmdd):
+        raise ValueError(_('The date {date} does not match the required YYYY-MM-DD format.').format(date=yyyymmdd))
+
+    try:
+        return date.fromisoformat(yyyymmdd)
+    except ValueError as error:
+        raise ValueError(_('The date {date} is not valid: {error}').format(date=yyyymmdd, error=error.args[0]))
+
+
 def get_dumpers() -> {str: dumper.Dumper}:
     return {
         'text': dumper.TextDumper,
@@ -141,16 +148,10 @@ def get_args(output_formats: [str]):
                         help=_("The observer's latitude on Earth"))
     parser.add_argument('--longitude', '-lon', type=float, default=None,
                         help=_("The observer's longitude on Earth"))
-    parser.add_argument('--day', '-d', type=int, default=today.day,
-                        help=_('A number between 1 and 28, 29, 30 or 31 (depending on the month). The day you want to '
-                               ' compute the ephemerides for. Defaults to {default_day} (the current day).').format(
-                                   default_day=today.day))
-    parser.add_argument('--month', '-m', type=int, default=today.month,
-                        help=_('A number between 1 and 12. The month you want to compute the ephemerides for.'
-                               ' Defaults to {default_month} (the current month).').format(default_month=today.month))
-    parser.add_argument('--year', '-y', type=int, default=today.year,
-                        help=_('The year you want to compute the ephemerides for.'
-                               ' Defaults to {default_year} (the current year).').format(default_year=today.year))
+    parser.add_argument('--date', '-d', type=str, default=today.strftime('%Y-%m-%d'),
+                        help=_('The date for which the ephemerides must be computed (in the YYYY-MM-DD format). '
+                               'Defaults to the current date ({default_date})').format(
+                            default_date=today.strftime('%Y-%m-%d')))
     parser.add_argument('--timezone', '-t', type=int, default=0,
                         help=_('The timezone to display the hours in (e.g. 2 for UTC+2 or -3 for UTC-3).'))
     parser.add_argument('--no-colors', dest='colors', action='store_false',

manpage/kosmorro.1.md

@@ -22,14 +22,8 @@
 `--longitude=`_LONGITUDE_, `-lon` _LONGITUDE_  
     the observer's longitude on Earth
 
-`--day=`_DAY_, `-d` _DAY_  
-    a number between 1 and 28, 29, 30 or 31 (depending on the month); the day you want to compute the ephemerides for, defaults to the current day
-
-`--month=`_MONTH_, `-m` _MONTH_  
-    a number between 1 and 12; the month you want to compute the ephemerides for, defaults to the current month
-
-`--year=`_YEAR_, `-y` _YEAR_  
-    the year you want to compute the ephemerides for; defaults to the current year
+`--date=`_DATE_, `-d` _DATE_  
+    The date for which the ephemerides must be computed (in the YYYY-MM-DD format); defaults to the current date
 
 `--timezone=`_TIMEZONE_, `-t` _TIMEZONE_  
     the timezone to display the hours in; e.g. 2 for UTC+2 or -3 for UTC-3
@@ -43,18 +37,24 @@
 `--format=`_FORMAT_, `-f` _FORMAT_  
     the format under which the information have to be output; one of the following: text, json, pdf
 
-## EXAMPLE
+## EXAMPLES
+
+Compute the events only for the current date:
+
+```
+kosmorro
+```
 
 Compute the ephemerides for Lille, France, on April 1st, 2022:
 
 ```
-kosmorro --latitude=50.5876 --longitude=3.0624 -d 1 -m 4 -y 2022
+kosmorro --latitude=50.5876 --longitude=3.0624 --date=2022-04-01
 ```
 
 Compute the ephemerides for Lille, France, on April 1st, 2022, and export them in a PDF document:
 
 ```
-kosmorro --latitude=50.5876 --longitude=3.0624 -d 1 -m 4 -y 2022 --format=pdf --output=file.pdf
+kosmorro --latitude=50.5876 --longitude=3.0624 -date=2022-04-01 --format=pdf --output=file.pdf
 ```
 
 ## AUTHOR