From 3960e17c2222366fb47366f5b5d46d768e2842c0 Mon Sep 17 00:00:00 2001
From: Nick White <git@njw.name>
Date: Sat, 14 Nov 2020 15:20:48 +0000
Subject: Add module support, license, readme
---
LICENSE | 674 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
README | 31 +++
go.mod | 1 +
main.go | 258 +++++++++++++++++++++++
weather.go | 252 -----------------------
5 files changed, 964 insertions(+), 252 deletions(-)
create mode 100644 LICENSE
create mode 100644 README
create mode 100644 go.mod
create mode 100644 main.go
delete mode 100644 weather.go
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..94a9ed0
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,674 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
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+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+ 17. Interpretation of Sections 15 and 16.
+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+ <program> Copyright (C) <year> <name of author>
+ This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/README b/README
new file mode 100644
index 0000000..19cc490
--- /dev/null
+++ b/README
@@ -0,0 +1,31 @@
+# njw.name/weather package
+
+This package is a command that prints the weather forecast for a
+location, using either the Met Office or BBC as a source.
+
+This is a Go package, and can be installed in the standard go way,
+by running `git clone https://git.njw.name/bbcschedule` and
+`go install .` from the bbcschedule directory.
+
+Note that the location must be set manually from the Go code, see
+`metdefid` and `bbcdefid`. Relatedly, note that this was the first
+Go program I wrote. Look elsewhere for examples of best practise.
+
+## Usage
+
+ Usage: weather [-b] [-n int] [-v]
+
+ -b use bbc as data source (default true)
+ -n int
+ number of days to show (default 2)
+ -v verbose: show all weather details
+
+## Contributions
+
+Any and all comments, bug reports, patches or pull requests would
+be very welcomely received. Please email them to <git@njw.name>.
+
+## License
+
+This package is licensed under the GPLv3. See the LICENSE file for
+more details.
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..d885c93
--- /dev/null
+++ b/go.mod
@@ -0,0 +1 @@
+module njw.name/weather
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..9e9fab6
--- /dev/null
+++ b/main.go
@@ -0,0 +1,258 @@
+// Copyright 2020 Nick White.
+// Use of this source code is governed by the GPLv3
+// license that can be found in the LICENSE file.
+package main
+
+// Note that this was the first Go I wrote. Look elsewhere for
+// examples of best practise.
+
+// BUG: need to allow choice of met-office source (-b 0 doesn't work how i thought it would)
+// TODO: allow free-text lookups of place names, rather than ids
+// TODO: convert metoffice windspeed to mph
+// TODO: split output into days
+// TODO: add -n flag to only output a certain number of days
+// TODO: human friendly dates
+
+import (
+ "encoding/json"
+ "flag"
+ "fmt"
+ "io/ioutil"
+ "log"
+ "net/http"
+)
+
+const metdefid = "310118"
+const bbcdefid = "2654675"
+
+const meturl = "https://www.metoffice.gov.uk/public/data/PWSCache/BestForecast/Forecast/%s.json?concise=true"
+const bbcurl = "https://weather-broker-cdn.api.bbci.co.uk/en/forecast/aggregated/%s"
+
+// BBC structures
+type BBCResponse struct {
+ Forecasts []struct {
+ Detailed struct {
+ Reports []Report
+ }
+ }
+}
+
+type Report struct {
+ EnhancedWeatherDescription string
+ ExtendedWeatherType int
+ FeelsLikeTemperatureC int
+ FeelsLikeTemperatureF int
+ GustSpeedKph int
+ GustSpeedMph int
+ Humidity int
+ LocalDate string
+ PrecipitationProbabilityInPercent int
+ PrecipitationProbabilityText string
+ Pressure int
+ TemperatureC int
+ TemperatureF int
+ Timeslot string
+ TimeslotLength int
+ Visibility string
+ WeatherType int
+ WeatherTypeText string
+ WindDescription string
+ WindDirection string
+ WindDirectionAbbreviation string
+ WindDirectionFull string
+ WindSpeedKph int
+ WindSpeedMph int
+}
+
+// Met Office structures
+type MetResponse struct {
+ BestFcst struct {
+ Forecast struct {
+ Location struct {
+ Days []Day `json:"Day"`
+ }
+ }
+ }
+}
+
+type Day struct {
+ Date string `json:"@date"`
+ DayValues struct {
+ WeatherParameters WeatherParams
+ }
+ NightValues struct {
+ WeatherParameters WeatherParams
+ }
+ TimeSteps struct {
+ TimeStep []struct {
+ Time string `json:"@time"`
+ WeatherParameters WeatherParams
+ }
+ }
+}
+
+type WeatherParams struct {
+ AQIndex int // Air Quality
+ F float64 // Feels Like Temperature
+ H int // Humidity
+ P int // Pressure
+ PP int // Precipitation Probability
+ T float64 // Temperature
+ UV int // Max UV Index
+ V int // Visibility
+ WD string // Wind Direction
+ WG float64 // Wind Gust
+ WS float64 // Wind Speed
+ WT int // Weather Type
+}
+
+// TODO: complete this mapping
+var TypeDescription = map[int]string{
+ 0: "Clear Sky",
+ 1: "Sunny",
+ 2: "Partly Cloudy",
+ 3: "Sunny Intervals",
+ 5: "Mist",
+ 7: "Light Cloud",
+ 8: "Thick Cloud",
+ 9: "Light Rain Showers",
+ 10: "Light Rain Showers",
+ 11: "Drizzle",
+ 12: "Light Rain",
+ 14: "Heavy Rain Showers",
+ 15: "Heavy Rain",
+ 18: "Sleet",
+ 19: "Hail Showers",
+ 20: "Hail Showers",
+ 28: "Thundery Showers",
+ 29: "Thundery Showers",
+}
+
+// Our prefered struct
+type Weather struct {
+ date string
+ time string
+ temperature float64
+ precipitation int
+ weathertype int
+ windspeed float64
+}
+
+var (
+ bbc = flag.Bool("b", true, "use bbc as data source")
+ numdays = flag.Int("n", 2, "number of days to show")
+ verbose = flag.Bool("v", false, "verbose: show all weather details")
+)
+
+func processBBC(b []byte) []Weather {
+ var r BBCResponse
+ var weather []Weather
+ var w Weather
+ err := json.Unmarshal(b, &r)
+ if err != nil {
+ log.Fatal(err)
+ }
+
+ for _, f := range r.Forecasts {
+ for _, report := range f.Detailed.Reports {
+ w.date = report.LocalDate
+ w.time = report.Timeslot
+ w.temperature = float64(report.TemperatureC)
+ w.precipitation = report.PrecipitationProbabilityInPercent
+ w.weathertype = report.WeatherType
+ w.windspeed = float64(report.WindSpeedMph)
+ weather = append(weather, w)
+ }
+ }
+ return weather
+}
+
+func processMet(b []byte) []Weather {
+ var r MetResponse
+ var weather []Weather
+ var w Weather
+ err := json.Unmarshal(b, &r)
+ if err != nil {
+ log.Fatal(err)
+ }
+
+ for _, d := range r.BestFcst.Forecast.Location.Days {
+ w.date = d.Date
+ w.time = "Day "
+ w.temperature = d.DayValues.WeatherParameters.T
+ w.precipitation = d.DayValues.WeatherParameters.PP
+ w.weathertype = d.DayValues.WeatherParameters.WT
+ w.windspeed = d.DayValues.WeatherParameters.WS
+ weather = append(weather, w)
+
+ w.date = d.Date
+ w.time = "Night "
+ w.temperature = d.DayValues.WeatherParameters.T
+ w.precipitation = d.DayValues.WeatherParameters.PP
+ w.weathertype = d.DayValues.WeatherParameters.WT
+ w.windspeed = d.DayValues.WeatherParameters.WS
+ weather = append(weather, w)
+
+ for _, t := range d.TimeSteps.TimeStep {
+ w.date = d.Date
+ w.time = t.Time
+ w.temperature = t.WeatherParameters.T
+ w.precipitation = t.WeatherParameters.PP
+ w.weathertype = t.WeatherParameters.WT
+ w.windspeed = t.WeatherParameters.WS
+ weather = append(weather, w)
+ }
+ }
+ return weather
+}
+
+func main() {
+ var err error
+ var id string
+ var resp *http.Response
+ var weather []Weather
+
+ flag.Parse()
+ if flag.NArg() > 0 {
+ id = flag.Arg(0)
+ } else {
+ if *bbc {
+ id = bbcdefid
+ } else {
+ id = metdefid
+ }
+ }
+
+ if *bbc {
+ resp, err = http.Get(fmt.Sprintf(bbcurl, id))
+ } else {
+ resp, err = http.Get(fmt.Sprintf(meturl, id))
+ }
+ if err != nil {
+ log.Fatal(err)
+ }
+ defer resp.Body.Close()
+ if resp.StatusCode != http.StatusOK {
+ log.Fatalf("HTTP status code: %d\n", resp.StatusCode)
+ }
+ b, err := ioutil.ReadAll(resp.Body)
+
+ if *bbc {
+ weather = processBBC(b)
+ } else {
+ weather = processMet(b)
+ }
+
+ for _, w := range weather {
+ fmt.Printf("%s %s ", w.date, w.time)
+ desc, ok := TypeDescription[w.weathertype]
+ if !ok {
+ desc = fmt.Sprintf("%d", w.weathertype)
+ }
+ fmt.Printf("%18s, Temp: %4.1f°C, ", desc, w.temperature)
+ fmt.Printf("Rain: %2d%%, Wind: %4.1fmph\n", w.precipitation, w.windspeed)
+ if *verbose {
+ fmt.Printf(" %+v\n", w)
+ }
+ }
+}
diff --git a/weather.go b/weather.go
deleted file mode 100644
index 4fd1c36..0000000
--- a/weather.go
+++ /dev/null
@@ -1,252 +0,0 @@
-package main
-
-// BUG: need to allow choice of met-office source (-b 0 doesn't work how i thought it would)
-// TODO: allow free-text lookups of place names, rather than ids
-// TODO: convert metoffice windspeed to mph
-// TODO: split output into days
-// TODO: add -n flag to only output a certain number of days
-// TODO: human friendly dates
-
-import (
- "encoding/json"
- "flag"
- "fmt"
- "io/ioutil"
- "log"
- "net/http"
-)
-
-const metdefid = "310118"
-const bbcdefid = "2654675"
-
-const meturl = "https://www.metoffice.gov.uk/public/data/PWSCache/BestForecast/Forecast/%s.json?concise=true"
-const bbcurl = "https://weather-broker-cdn.api.bbci.co.uk/en/forecast/aggregated/%s"
-
-// BBC structures
-type BBCResponse struct {
- Forecasts []struct {
- Detailed struct {
- Reports []Report
- }
- }
-}
-
-type Report struct {
- EnhancedWeatherDescription string
- ExtendedWeatherType int
- FeelsLikeTemperatureC int
- FeelsLikeTemperatureF int
- GustSpeedKph int
- GustSpeedMph int
- Humidity int
- LocalDate string
- PrecipitationProbabilityInPercent int
- PrecipitationProbabilityText string
- Pressure int
- TemperatureC int
- TemperatureF int
- Timeslot string
- TimeslotLength int
- Visibility string
- WeatherType int
- WeatherTypeText string
- WindDescription string
- WindDirection string
- WindDirectionAbbreviation string
- WindDirectionFull string
- WindSpeedKph int
- WindSpeedMph int
-}
-
-// Met Office structures
-type MetResponse struct {
- BestFcst struct {
- Forecast struct {
- Location struct {
- Days []Day `json:"Day"`
- }
- }
- }
-}
-
-type Day struct {
- Date string `json:"@date"`
- DayValues struct {
- WeatherParameters WeatherParams
- }
- NightValues struct {
- WeatherParameters WeatherParams
- }
- TimeSteps struct {
- TimeStep []struct {
- Time string `json:"@time"`
- WeatherParameters WeatherParams
- }
- }
-}
-
-type WeatherParams struct {
- AQIndex int // Air Quality
- F float64 // Feels Like Temperature
- H int // Humidity
- P int // Pressure
- PP int // Precipitation Probability
- T float64 // Temperature
- UV int // Max UV Index
- V int // Visibility
- WD string // Wind Direction
- WG float64 // Wind Gust
- WS float64 // Wind Speed
- WT int // Weather Type
-}
-
-// TODO: complete this mapping
-var TypeDescription = map[int]string{
- 0: "Clear Sky",
- 1: "Sunny",
- 2: "Partly Cloudy",
- 3: "Sunny Intervals",
- 5: "Mist",
- 7: "Light Cloud",
- 8: "Thick Cloud",
- 9: "Light Rain Showers",
- 10: "Light Rain Showers",
- 11: "Drizzle",
- 12: "Light Rain",
- 14: "Heavy Rain Showers",
- 15: "Heavy Rain",
- 18: "Sleet",
- 19: "Hail Showers",
- 20: "Hail Showers",
- 28: "Thundery Showers",
- 29: "Thundery Showers",
-}
-
-// Our prefered struct
-type Weather struct {
- date string
- time string
- temperature float64
- precipitation int
- weathertype int
- windspeed float64
-}
-
-var (
- bbc = flag.Bool("b", true, "use bbc as data source")
- numdays = flag.Int("n", 2, "number of days to show")
- verbose = flag.Bool("v", false, "verbose: show all weather details")
-)
-
-func processBBC(b []byte) []Weather {
- var r BBCResponse
- var weather []Weather
- var w Weather
- err := json.Unmarshal(b, &r)
- if err != nil {
- log.Fatal(err)
- }
-
- for _, f := range r.Forecasts {
- for _, report := range f.Detailed.Reports {
- w.date = report.LocalDate
- w.time = report.Timeslot
- w.temperature = float64(report.TemperatureC)
- w.precipitation = report.PrecipitationProbabilityInPercent
- w.weathertype = report.WeatherType
- w.windspeed = float64(report.WindSpeedMph)
- weather = append(weather, w)
- }
- }
- return weather
-}
-
-func processMet(b []byte) []Weather {
- var r MetResponse
- var weather []Weather
- var w Weather
- err := json.Unmarshal(b, &r)
- if err != nil {
- log.Fatal(err)
- }
-
- for _, d := range r.BestFcst.Forecast.Location.Days {
- w.date = d.Date
- w.time = "Day "
- w.temperature = d.DayValues.WeatherParameters.T
- w.precipitation = d.DayValues.WeatherParameters.PP
- w.weathertype = d.DayValues.WeatherParameters.WT
- w.windspeed = d.DayValues.WeatherParameters.WS
- weather = append(weather, w)
-
- w.date = d.Date
- w.time = "Night "
- w.temperature = d.DayValues.WeatherParameters.T
- w.precipitation = d.DayValues.WeatherParameters.PP
- w.weathertype = d.DayValues.WeatherParameters.WT
- w.windspeed = d.DayValues.WeatherParameters.WS
- weather = append(weather, w)
-
- for _, t := range d.TimeSteps.TimeStep {
- w.date = d.Date
- w.time = t.Time
- w.temperature = t.WeatherParameters.T
- w.precipitation = t.WeatherParameters.PP
- w.weathertype = t.WeatherParameters.WT
- w.windspeed = t.WeatherParameters.WS
- weather = append(weather, w)
- }
- }
- return weather
-}
-
-func main() {
- var err error
- var id string
- var resp *http.Response
- var weather []Weather
-
- flag.Parse()
- if flag.NArg() > 0 {
- id = flag.Arg(0)
- } else {
- if *bbc {
- id = bbcdefid
- } else {
- id = metdefid
- }
- }
-
- if *bbc {
- resp, err = http.Get(fmt.Sprintf(bbcurl, id))
- } else {
- resp, err = http.Get(fmt.Sprintf(meturl, id))
- }
- if err != nil {
- log.Fatal(err)
- }
- defer resp.Body.Close()
- if resp.StatusCode != http.StatusOK {
- log.Fatalf("HTTP status code: %d\n", resp.StatusCode)
- }
- b, err := ioutil.ReadAll(resp.Body)
-
- if *bbc {
- weather = processBBC(b)
- } else {
- weather = processMet(b)
- }
-
- for _, w := range weather {
- fmt.Printf("%s %s ", w.date, w.time)
- desc, ok := TypeDescription[w.weathertype]
- if !ok {
- desc = fmt.Sprintf("%d", w.weathertype)
- }
- fmt.Printf("%18s, Temp: %4.1f°C, ", desc, w.temperature)
- fmt.Printf("Rain: %2d%%, Wind: %4.1fmph\n", w.precipitation, w.windspeed)
- if *verbose {
- fmt.Printf(" %+v\n", w)
- }
- }
-}
--
cgit v1.2.3
From 02720f60f28cc422f219b7904c201a2700891959 Mon Sep 17 00:00:00 2001
From: Nick White <git@njw.name>
Date: Mon, 28 Dec 2020 12:21:24 +0000
Subject: Add some sleet weather types
---
main.go | 2 ++
1 file changed, 2 insertions(+)
diff --git a/main.go b/main.go
index 9e9fab6..b93f141 100644
--- a/main.go
+++ b/main.go
@@ -121,6 +121,8 @@ var TypeDescription = map[int]string{
12: "Light Rain",
14: "Heavy Rain Showers",
15: "Heavy Rain",
+ 16: "Sleet Showers",
+ 17: "Sleet Showers",
18: "Sleet",
19: "Hail Showers",
20: "Hail Showers",
--
cgit v1.2.3
From e9397149ede17f7537296c52445bc7856f8cc987 Mon Sep 17 00:00:00 2001
From: Nick White <git@njw.name>
Date: Sat, 2 Jan 2021 09:49:58 +0000
Subject: Add extra weather types
---
main.go | 3 +++
1 file changed, 3 insertions(+)
diff --git a/main.go b/main.go
index b93f141..29af82e 100644
--- a/main.go
+++ b/main.go
@@ -126,6 +126,9 @@ var TypeDescription = map[int]string{
18: "Sleet",
19: "Hail Showers",
20: "Hail Showers",
+ 22: "Light Snow Showers",
+ 23: "Light Snow Showers",
+ 26: "Heavy Snow Showers",
28: "Thundery Showers",
29: "Thundery Showers",
}
--
cgit v1.2.3