Adding skyfield, a Python program for ephemerides computation and skyfield-data,

a minimal set of data files to work with py-skyfield.

10 files changed, 429 insertions, 0 deletions

diff --git a/astro/Makefile b/astro/Makefile
index 3280350de3d8..d74b831817f7 100644
--- a/astro/Makefile
+++ b/astro/Makefile
@@ -95,6 +95,8 @@
     SUBDIR += py-spacetrack
     SUBDIR += py-spktype01
     SUBDIR += py-spktype21
+    SUBDIR += py-skyfield
+    SUBDIR += py-skyfield-data
     SUBDIR += pyweather
     SUBDIR += qmapshack
     SUBDIR += readosm
diff --git a/astro/py-skyfield-data/Makefile b/astro/py-skyfield-data/Makefile
new file mode 100644
index 000000000000..08db9b6cf112
--- /dev/null
+++ b/astro/py-skyfield-data/Makefile
@@ -0,0 +1,28 @@
+# Created by: thierry@pompo.net
+# $FreeBSD$
+
+PORTNAME=	skyfield-data
+PORTVERSION=	3.0.0
+CATEGORIES=	astro python
+PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
+
+MAINTAINER=	thierry@FreeBSD.org
+COMMENT=	Minimal data files to work with py-skyfield
+
+LICENSE=	MIT
+
+RON_DEPENDS=	${PYTHON_PKGNAMEPREFIX}skyfield>0:astro/py-skyfield@${PY_FLAVOR}
+TEST_DEPENDS=	py.test:devel/py-pytest@${PY_FLAVOR}
+
+USE_GITHUB=	yes
+GH_ACCOUNT=	brunobord
+
+USES=		python:3.7+
+USE_PYTHON=	distutils
+
+NO_ARCH=	yes
+
+do-test: install
+	(cd ${WRKSRC} && py.test)
+
+.include <bsd.port.mk>
diff --git a/astro/py-skyfield-data/distinfo b/astro/py-skyfield-data/distinfo
new file mode 100644
index 000000000000..3a8a3174e78a
--- /dev/null
+++ b/astro/py-skyfield-data/distinfo
@@ -0,0 +1,3 @@
+TIMESTAMP = 1613939122
+SHA256 (brunobord-skyfield-data-3.0.0_GH0.tar.gz) = 99c9c307aa854a05108f28308f18848d69fe0e1e81beff5c886a00e9a6d651a5
+SIZE (brunobord-skyfield-data-3.0.0_GH0.tar.gz) = 16900568
diff --git a/astro/py-skyfield-data/pkg-descr b/astro/py-skyfield-data/pkg-descr
new file mode 100644
index 000000000000..aff28efafe51
--- /dev/null
+++ b/astro/py-skyfield-data/pkg-descr
@@ -0,0 +1,23 @@
+Skyfield (astro/py-skyfield) is a Python library for astronomical computations.
+It depends on various data files to accurately compute moon phases, planet
+positions, etc. Several issues are raised by these data files:
+
+  - If they're not found in the path of the Loader, they're downloaded at
+  runtime. Depending on the archive you're requesting, some files might be very
+  large, causing a long delay (directly related to your network bandwidth). In
+  the case of a web server app, you'd cause a timeout on client's end.
+
+  - They come mainly from 2 sources: NASA's JPL, and the IERS. If one of them is
+  temporarily unavailable, you couldn't perform any computation.
+
+  - In some countries, or behind some filtering proxies, some hosts may be
+  blocked.
+
+  - These files have an expiration date (in a more or less distant future). As a
+    consequence, even if the files are already downloaded in the right path, at
+    each runtime you could possibly have to download one or more files before
+    making any computation using them.
+
+This package provides at least the most common of these assets.
+
+WWW: https://github.com/brunobord/skyfield-data
diff --git a/astro/py-skyfield-data/pkg-plist b/astro/py-skyfield-data/pkg-plist
new file mode 100644
index 000000000000..96ccd3b96875
--- /dev/null
+++ b/astro/py-skyfield-data/pkg-plist
@@ -0,0 +1,11 @@
+%%PYTHON_SITELIBDIR%%/skyfield_data/__init__.py
+%%PYTHON_SITELIBDIR%%/skyfield_data/__pycache__/__init__.cpython-%%PYTHON_SUFFIX%%.opt-1.pyc
+%%PYTHON_SITELIBDIR%%/skyfield_data/__pycache__/__init__.cpython-%%PYTHON_SUFFIX%%.pyc
+%%PYTHON_SITELIBDIR%%/skyfield_data/__pycache__/expiration_data.cpython-%%PYTHON_SUFFIX%%.opt-1.pyc
+%%PYTHON_SITELIBDIR%%/skyfield_data/__pycache__/expiration_data.cpython-%%PYTHON_SUFFIX%%.pyc
+%%PYTHON_SITELIBDIR%%/skyfield_data/__pycache__/expirations.cpython-%%PYTHON_SUFFIX%%.opt-1.pyc
+%%PYTHON_SITELIBDIR%%/skyfield_data/__pycache__/expirations.cpython-%%PYTHON_SUFFIX%%.pyc
+%%PYTHON_SITELIBDIR%%/skyfield_data/data/de421.bsp
+%%PYTHON_SITELIBDIR%%/skyfield_data/data/finals2000A.all
+%%PYTHON_SITELIBDIR%%/skyfield_data/expiration_data.py
+%%PYTHON_SITELIBDIR%%/skyfield_data/expirations.py
diff --git a/astro/py-skyfield/Makefile b/astro/py-skyfield/Makefile
new file mode 100644
index 000000000000..f56a70d714fb
--- /dev/null
+++ b/astro/py-skyfield/Makefile
@@ -0,0 +1,58 @@
+# Created by: thierry@pompo.net
+# $FreeBSD$
+
+PORTNAME=	skyfield
+PORTVERSION=	1.37
+CATEGORIES=	astro python
+PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
+
+MAINTAINER=	thierry@FreeBSD.org
+COMMENT=	Ephemerides computation
+
+LICENSE=	MIT
+
+BUILD_DEPENDS=	${PYNUMPY}	\
+		${PYTHON_PKGNAMEPREFIX}sgp4>0:astro/py-sgp4@${PY_FLAVOR}	\
+		${PYTHON_PKGNAMEPREFIX}jplephem>0:astro/py-jplephem@${PY_FLAVOR}\
+		${PYTHON_PKGNAMEPREFIX}certifi>0:security/py-certifi@${PY_FLAVOR}
+RUN_DEPENDS=	${PYNUMPY}	\
+		${PYTHON_PKGNAMEPREFIX}lxml>0:devel/py-lxml@${PY_FLAVOR}	\
+		${PYTHON_PKGNAMEPREFIX}mock>0:devel/py-mock@${PY_FLAVOR}	\
+		${PYTHON_PKGNAMEPREFIX}pytz>0:devel/py-pytz@${PY_FLAVOR}	\
+		${PYTHON_PKGNAMEPREFIX}sgp4>0:astro/py-sgp4@${PY_FLAVOR}	\
+		${PYTHON_PKGNAMEPREFIX}pandas>0:math/py-pandas@${PY_FLAVOR}	\
+		${PYTHON_PKGNAMEPREFIX}scipy>0:science/py-scipy@${PY_FLAVOR}	\
+		${PYTHON_PKGNAMEPREFIX}astropy>0:astro/py-astropy@${PY_FLAVOR}	\
+		${PYTHON_PKGNAMEPREFIX}html5lib>0:www/py-html5lib@${PY_FLAVOR}	\
+		${PYTHON_PKGNAMEPREFIX}sphinx>0:textproc/py-sphinx@${PY_FLAVOR}	\
+		${PYTHON_PKGNAMEPREFIX}tabulate>0:devel/py-tabulate@${PY_FLAVOR}\
+		${PYTHON_PKGNAMEPREFIX}jplephem>0:astro/py-jplephem@${PY_FLAVOR}\
+		${PYTHON_PKGNAMEPREFIX}dateutil>0:devel/py-dateutil@${PY_FLAVOR}\
+		${PYTHON_PKGNAMEPREFIX}pyflakes>0:devel/py-pyflakes@${PY_FLAVOR}\
+		${PYTHON_PKGNAMEPREFIX}certifi>0:security/py-certifi@${PY_FLAVOR}\
+		${PYTHON_PKGNAMEPREFIX}spktype21>0:astro/py-spktype21@${PY_FLAVOR}\
+		${PYTHON_PKGNAMEPREFIX}termcolor>0:devel/py-termcolor@${PY_FLAVOR}\
+		${PYTHON_PKGNAMEPREFIX}matplotlib>0:math/py-matplotlib@${PY_FLAVOR}\
+		${PYTHON_PKGNAMEPREFIX}beautifulsoup>0:www/py-beautifulsoup@${PY_FLAVOR}
+
+USE_GITHUB=	yes
+GH_ACCOUNT=	skyfielders
+GH_PROJECT=	python-skyfield
+
+USES=		python:3.7+ shebangfix
+USE_PYTHON=	distutils
+SHEBANG_FILES=	test-code.sh test-docs.sh
+NO_ARCH=	yes
+
+OPTIONS_DEFINE=	EXAMPLES
+PORTEXAMPLES=	*
+
+post-install-EXAMPLES-on:
+	@${MKDIR} ${STAGEDIR}${EXAMPLESDIR}
+	${CP} -R ${WRKSRC}/examples/ ${STAGEDIR}${EXAMPLESDIR}
+
+do-test: install
+	${CP} ${FILESDIR}/test-skyfield.py ${WRKSRC}
+	(cd ${WRKSRC} && ${PYTHON_CMD} test-skyfield.py)
+
+.include <bsd.port.mk>
diff --git a/astro/py-skyfield/distinfo b/astro/py-skyfield/distinfo
new file mode 100644
index 000000000000..4b1254e985c1
--- /dev/null
+++ b/astro/py-skyfield/distinfo
@@ -0,0 +1,3 @@
+TIMESTAMP = 1613674880
+SHA256 (skyfielders-python-skyfield-1.37_GH0.tar.gz) = 91fdc2c6aab4bd2ebf68b6362088ecaeda6656158a6b319aacb49038db7266c0
+SIZE (skyfielders-python-skyfield-1.37_GH0.tar.gz) = 85264483
diff --git a/astro/py-skyfield/files/test-skyfield.py b/astro/py-skyfield/files/test-skyfield.py
new file mode 100644
index 000000000000..a0dea3dcb621
--- /dev/null
+++ b/astro/py-skyfield/files/test-skyfield.py
@@ -0,0 +1,13 @@
+from skyfield.api import load
+
+planets = load('de421.bsp')
+earth, mars = planets['earth'], planets['mars']
+
+ts = load.timescale()
+t = ts.now()
+position = earth.at(t).observe(mars)
+ra, dec, distance = position.radec()
+
+print(ra)
+print(dec)
+print(distance)
diff --git a/astro/py-skyfield/pkg-descr b/astro/py-skyfield/pkg-descr
new file mode 100644
index 000000000000..f30cbd859053
--- /dev/null
+++ b/astro/py-skyfield/pkg-descr
@@ -0,0 +1,4 @@
+Skyfield is a pure-Python astronomy package that makes it easy to generate high
+precision research-grade positions for planets and Earth satellites.
+
+WWW: https://rhodesmill.org/skyfield/
diff --git a/astro/py-skyfield/pkg-plist b/astro/py-skyfield/pkg-plist
new file mode 100644
index 000000000000..03c64c1e32d5
--- /dev/null
+++ b/astro/py-skyfield/pkg-plist
@@ -0,0 +1,284 @@
+%%PYTHON_SITELIBDIR%%/skyfield/__init__.py
+%%PYTHON_SITELIBDIR%%/skyfield/__main__.py
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/__init__.cpython-%%PYTHON_SUFFIX%%.opt-1.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/__init__.cpython-%%PYTHON_SUFFIX%%.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/__main__.cpython-%%PYTHON_SUFFIX%%.opt-1.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/__main__.cpython-%%PYTHON_SUFFIX%%.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/almanac.cpython-%%PYTHON_SUFFIX%%.opt-1.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/almanac.cpython-%%PYTHON_SUFFIX%%.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/almanac_east_asia.cpython-%%PYTHON_SUFFIX%%.opt-1.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/almanac_east_asia.cpython-%%PYTHON_SUFFIX%%.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/api.cpython-%%PYTHON_SUFFIX%%.opt-1.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/api.cpython-%%PYTHON_SUFFIX%%.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/charting.cpython-%%PYTHON_SUFFIX%%.opt-1.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/charting.cpython-%%PYTHON_SUFFIX%%.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/constants.cpython-%%PYTHON_SUFFIX%%.opt-1.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/constants.cpython-%%PYTHON_SUFFIX%%.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/constellationlib.cpython-%%PYTHON_SUFFIX%%.opt-1.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/constellationlib.cpython-%%PYTHON_SUFFIX%%.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/descriptorlib.cpython-%%PYTHON_SUFFIX%%.opt-1.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/descriptorlib.cpython-%%PYTHON_SUFFIX%%.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/earthlib.cpython-%%PYTHON_SUFFIX%%.opt-1.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/earthlib.cpython-%%PYTHON_SUFFIX%%.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/eclipselib.cpython-%%PYTHON_SUFFIX%%.opt-1.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/eclipselib.cpython-%%PYTHON_SUFFIX%%.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/elementslib.cpython-%%PYTHON_SUFFIX%%.opt-1.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/elementslib.cpython-%%PYTHON_SUFFIX%%.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/errors.cpython-%%PYTHON_SUFFIX%%.opt-1.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/errors.cpython-%%PYTHON_SUFFIX%%.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/framelib.cpython-%%PYTHON_SUFFIX%%.opt-1.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/framelib.cpython-%%PYTHON_SUFFIX%%.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/functions.cpython-%%PYTHON_SUFFIX%%.opt-1.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/functions.cpython-%%PYTHON_SUFFIX%%.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/geometry.cpython-%%PYTHON_SUFFIX%%.opt-1.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/geometry.cpython-%%PYTHON_SUFFIX%%.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/io_timescale.cpython-%%PYTHON_SUFFIX%%.opt-1.pyc
+%%PYTHON_SITELIBDIR%%/skyfield/__pycache__/io_timescale.cpython-%%PYTHON_SUFFIX%%.pyc
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