/
main.go
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/
main.go
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/*
* Copyright 2018-2020 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package main
import (
"encoding/json"
"fmt"
"net/http"
"sort"
"sync"
"github.com/pelletier/go-toml"
"github.com/paketo-buildpacks/pipeline-builder/actions"
)
func main() {
inputs := actions.NewInputs()
u, ok := inputs["uri"]
if !ok {
panic(fmt.Errorf("uri must be specified"))
}
uri := fmt.Sprintf("%s/projects", u)
resp, err := http.Get(uri)
if err != nil {
panic(fmt.Errorf("unable to GET %s\n%w", uri, err))
}
defer resp.Body.Close()
if resp.StatusCode != 200 {
panic(fmt.Errorf("unable to download %s", uri))
}
var raw RawProjectsPayload
if err := json.NewDecoder(resp.Body).Decode(&raw); err != nil {
panic(fmt.Errorf("unable to decode %s\n%w", uri, err))
}
results := make(chan result)
var wg sync.WaitGroup
for _, p := range raw.Embedded.Projects {
wg.Add(1)
go func(rawProject RawProject) {
defer wg.Done()
project := Project{
Name: rawProject.Name,
Slug: rawProject.Slug,
Status: rawProject.Status,
}
uri := rawProject.Links["generations"].Href
resp, err := http.Get(uri)
if err != nil {
results <- result{err: fmt.Errorf("unable to GET %s\n%w", uri, err)}
return
}
defer resp.Body.Close()
if resp.StatusCode != 200 {
results <- result{err: fmt.Errorf("unable to download %s", uri)}
return
}
var raw RawGenerationsPayload
if err := json.NewDecoder(resp.Body).Decode(&raw); err != nil {
results <- result{err: fmt.Errorf("unable to decode %s\n%w", uri, err)}
return
}
for _, g := range raw.Embedded.Generations {
project.Generations = append(project.Generations, Generation{
Name: g.Name,
OSS: g.OSS,
Commercial: g.Commercial,
})
}
results <- result{value: project}
}(p)
}
go func() {
wg.Wait()
close(results)
}()
content := Content{}
for r := range results {
if r.err != nil {
panic(fmt.Errorf("unable to get generations\n%w", r.err))
}
content.Projects = append(content.Projects, r.value)
}
sort.Slice(content.Projects, func(i, j int) bool {
return content.Projects[i].Slug < content.Projects[j].Slug
})
b, err := toml.Marshal(content)
if err != nil {
panic(fmt.Errorf("unable to marshal content\n%w", err))
}
actions.Outputs{
"content": string(b),
}.Write()
}
type result struct {
err error
value Project
}
type Content struct {
Projects []Project
}
type Project struct {
Name string
Slug string
Status string
Generations []Generation
}
type Generation struct {
Name string
OSS string
Commercial string
}
type RawLink struct {
Href string
}
type RawProjectsPayload struct {
Embedded RawProjectsEmbedded `json:"_embedded"`
}
type RawProjectsEmbedded struct {
Projects []RawProject
}
type RawProject struct {
Name string
Slug string
Status string
Links map[string]RawLink `json:"_links"`
}
type RawGenerationsPayload struct {
Embedded RawGenerationsEmbedded `json:"_embedded"`
}
type RawGenerationsEmbedded struct {
Generations []RawGeneration
}
type RawGeneration struct {
Name string
OSS string `json:"ossSupportEndDate"`
Commercial string `json:"commercialSupportEndDate"`
}