513 lines
12 KiB
Go
513 lines
12 KiB
Go
package server
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import (
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"context"
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"encoding/json"
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"fmt"
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"regexp"
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"strconv"
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"time"
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"github.com/gin-gonic/gin"
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"github.com/Sirupsen/logrus"
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"github.com/drone/drone/model"
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"github.com/drone/drone/remote"
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"github.com/drone/drone/shared/httputil"
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"github.com/drone/drone/shared/token"
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"github.com/drone/drone/store"
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"github.com/drone/envsubst"
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"github.com/cncd/pipeline/pipeline/backend"
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"github.com/cncd/pipeline/pipeline/frontend"
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"github.com/cncd/pipeline/pipeline/frontend/yaml"
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"github.com/cncd/pipeline/pipeline/frontend/yaml/compiler"
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"github.com/cncd/pipeline/pipeline/frontend/yaml/linter"
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"github.com/cncd/pipeline/pipeline/frontend/yaml/matrix"
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"github.com/cncd/pipeline/pipeline/rpc"
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"github.com/cncd/pubsub"
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"github.com/cncd/queue"
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)
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//
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// CANARY IMPLEMENTATION
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//
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// This file is a complete disaster because I'm trying to wedge in some
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// experimental code. Please pardon our appearance during renovations.
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//
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var skipRe = regexp.MustCompile(`\[(?i:ci *skip|skip *ci)\]`)
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func GetQueueInfo(c *gin.Context) {
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c.IndentedJSON(200,
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Config.Services.Queue.Info(c),
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)
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}
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func PostHook(c *gin.Context) {
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remote_ := remote.FromContext(c)
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tmprepo, build, err := remote_.Hook(c.Request)
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if err != nil {
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logrus.Errorf("failure to parse hook. %s", err)
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c.AbortWithError(400, err)
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return
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}
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if build == nil {
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c.Writer.WriteHeader(200)
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return
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}
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if tmprepo == nil {
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logrus.Errorf("failure to ascertain repo from hook.")
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c.Writer.WriteHeader(400)
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return
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}
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// skip the build if any case-insensitive combination of the words "skip" and "ci"
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// wrapped in square brackets appear in the commit message
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skipMatch := skipRe.FindString(build.Message)
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if len(skipMatch) > 0 {
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logrus.Infof("ignoring hook. %s found in %s", skipMatch, build.Commit)
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c.Writer.WriteHeader(204)
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return
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}
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repo, err := store.GetRepoOwnerName(c, tmprepo.Owner, tmprepo.Name)
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if err != nil {
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logrus.Errorf("failure to find repo %s/%s from hook. %s", tmprepo.Owner, tmprepo.Name, err)
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c.AbortWithError(404, err)
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return
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}
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// get the token and verify the hook is authorized
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parsed, err := token.ParseRequest(c.Request, func(t *token.Token) (string, error) {
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return repo.Hash, nil
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})
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if err != nil {
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logrus.Errorf("failure to parse token from hook for %s. %s", repo.FullName, err)
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c.AbortWithError(400, err)
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return
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}
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if parsed.Text != repo.FullName {
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logrus.Errorf("failure to verify token from hook. Expected %s, got %s", repo.FullName, parsed.Text)
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c.AbortWithStatus(403)
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return
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}
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if repo.UserID == 0 {
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logrus.Warnf("ignoring hook. repo %s has no owner.", repo.FullName)
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c.Writer.WriteHeader(204)
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return
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}
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var skipped = true
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if (build.Event == model.EventPush && repo.AllowPush) ||
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(build.Event == model.EventPull && repo.AllowPull) ||
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(build.Event == model.EventDeploy && repo.AllowDeploy) ||
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(build.Event == model.EventTag && repo.AllowTag) {
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skipped = false
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}
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if skipped {
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logrus.Infof("ignoring hook. repo %s is disabled for %s events.", repo.FullName, build.Event)
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c.Writer.WriteHeader(204)
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return
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}
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user, err := store.GetUser(c, repo.UserID)
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if err != nil {
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logrus.Errorf("failure to find repo owner %s. %s", repo.FullName, err)
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c.AbortWithError(500, err)
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return
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}
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// if the remote has a refresh token, the current access token
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// may be stale. Therefore, we should refresh prior to dispatching
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// the build.
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if refresher, ok := remote_.(remote.Refresher); ok {
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ok, _ := refresher.Refresh(user)
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if ok {
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store.UpdateUser(c, user)
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}
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}
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// fetch the build file from the database
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raw, err := remote_.File(user, repo, build, repo.Config)
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if err != nil {
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logrus.Errorf("failure to get build config for %s. %s", repo.FullName, err)
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c.AbortWithError(404, err)
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return
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}
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netrc, err := remote_.Netrc(user, repo)
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if err != nil {
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c.String(500, "Failed to generate netrc file. %s", err)
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return
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}
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// verify the branches can be built vs skipped
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branches, err := yaml.ParseBytes(raw)
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if err == nil {
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if !branches.Branches.Match(build.Branch) && build.Event != model.EventTag && build.Event != model.EventDeploy {
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c.String(200, "Branch does not match restrictions defined in yaml")
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return
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}
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}
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secs, err := Config.Services.Secrets.SecretList(repo)
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if err != nil {
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logrus.Debugf("Error getting secrets for %s#%d. %s", repo.FullName, build.Number, err)
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}
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regs, err := Config.Services.Registries.RegistryList(repo)
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if err != nil {
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logrus.Debugf("Error getting registry credentials for %s#%d. %s", repo.FullName, build.Number, err)
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}
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// update some build fields
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build.RepoID = repo.ID
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build.Verified = true
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build.Status = model.StatusPending
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if repo.IsGated {
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allowed, _ := Config.Services.Senders.SenderAllowed(user, repo, build)
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if !allowed {
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build.Status = model.StatusBlocked
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}
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}
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err = store.CreateBuild(c, build, build.Procs...)
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if err != nil {
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logrus.Errorf("failure to save commit for %s. %s", repo.FullName, err)
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c.AbortWithError(500, err)
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return
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}
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c.JSON(200, build)
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if build.Status == model.StatusBlocked {
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return
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}
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// get the previous build so that we can send
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// on status change notifications
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last, _ := store.GetBuildLastBefore(c, repo, build.Branch, build.ID)
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//
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// BELOW: NEW
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//
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defer func() {
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uri := fmt.Sprintf("%s/%s/%d", httputil.GetURL(c.Request), repo.FullName, build.Number)
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err = remote_.Status(user, repo, build, uri)
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if err != nil {
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logrus.Errorf("error setting commit status for %s/%d", repo.FullName, build.Number)
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}
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}()
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b := builder{
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Repo: repo,
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Curr: build,
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Last: last,
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Netrc: netrc,
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Secs: secs,
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Regs: regs,
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Link: httputil.GetURL(c.Request),
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Yaml: string(raw),
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}
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items, err := b.Build()
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if err != nil {
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build.Status = model.StatusError
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build.Started = time.Now().Unix()
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build.Finished = build.Started
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build.Error = err.Error()
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store.UpdateBuild(c, build)
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return
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}
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var pcounter = len(items)
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for _, item := range items {
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build.Procs = append(build.Procs, item.Proc)
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item.Proc.BuildID = build.ID
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for _, stage := range item.Config.Stages {
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var gid int
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for _, step := range stage.Steps {
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pcounter++
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if gid == 0 {
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gid = pcounter
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}
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proc := &model.Proc{
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BuildID: build.ID,
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Name: step.Alias,
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PID: pcounter,
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PPID: item.Proc.PID,
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PGID: gid,
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State: model.StatusPending,
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}
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build.Procs = append(build.Procs, proc)
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}
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}
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}
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err = store.FromContext(c).ProcCreate(build.Procs)
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if err != nil {
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logrus.Errorf("error persisting procs %s/%d: %s", repo.FullName, build.Number, err)
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}
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//
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// publish topic
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//
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message := pubsub.Message{
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Labels: map[string]string{
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"repo": repo.FullName,
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"private": strconv.FormatBool(repo.IsPrivate),
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},
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}
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buildCopy := *build
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buildCopy.Procs = model.Tree(buildCopy.Procs)
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message.Data, _ = json.Marshal(model.Event{
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Type: model.Enqueued,
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Repo: *repo,
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Build: buildCopy,
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})
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// TODO remove global reference
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Config.Services.Pubsub.Publish(c, "topic/events", message)
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//
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// end publish topic
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//
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for _, item := range items {
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task := new(queue.Task)
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task.ID = fmt.Sprint(item.Proc.ID)
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task.Labels = map[string]string{}
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task.Labels["platform"] = item.Platform
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for k, v := range item.Labels {
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task.Labels[k] = v
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}
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task.Data, _ = json.Marshal(rpc.Pipeline{
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ID: fmt.Sprint(item.Proc.ID),
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Config: item.Config,
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Timeout: b.Repo.Timeout,
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})
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Config.Services.Logs.Open(context.Background(), task.ID)
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Config.Services.Queue.Push(context.Background(), task)
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}
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}
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// return the metadata from the cli context.
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func metadataFromStruct(repo *model.Repo, build, last *model.Build, proc *model.Proc, link string) frontend.Metadata {
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return frontend.Metadata{
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Repo: frontend.Repo{
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Name: repo.Name,
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Link: repo.Link,
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Remote: repo.Clone,
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Private: repo.IsPrivate,
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},
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Curr: frontend.Build{
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Number: build.Number,
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Created: build.Created,
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Started: build.Started,
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Finished: build.Finished,
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Status: build.Status,
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Event: build.Event,
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Link: build.Link,
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Target: build.Deploy,
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Commit: frontend.Commit{
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Sha: build.Commit,
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Ref: build.Ref,
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Refspec: build.Refspec,
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Branch: build.Branch,
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Message: build.Message,
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Author: frontend.Author{
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Name: build.Author,
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Email: build.Email,
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Avatar: build.Avatar,
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},
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},
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},
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Prev: frontend.Build{
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Number: last.Number,
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Created: last.Created,
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Started: last.Started,
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Finished: last.Finished,
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Status: last.Status,
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Event: last.Event,
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Link: last.Link,
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Target: last.Deploy,
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Commit: frontend.Commit{
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Sha: last.Commit,
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Ref: last.Ref,
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Refspec: last.Refspec,
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Branch: last.Branch,
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Message: last.Message,
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Author: frontend.Author{
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Name: last.Author,
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Email: last.Email,
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Avatar: last.Avatar,
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},
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},
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},
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Job: frontend.Job{
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Number: proc.PID,
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Matrix: proc.Environ,
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},
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Sys: frontend.System{
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Name: "drone",
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Link: link,
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Arch: "linux/amd64",
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},
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}
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}
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type builder struct {
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Repo *model.Repo
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Curr *model.Build
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Last *model.Build
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Netrc *model.Netrc
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Secs []*model.Secret
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Regs []*model.Registry
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Link string
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Yaml string
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}
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type buildItem struct {
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Proc *model.Proc
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Platform string
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Labels map[string]string
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Config *backend.Config
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}
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func (b *builder) Build() ([]*buildItem, error) {
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axes, err := matrix.ParseString(b.Yaml)
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if err != nil {
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return nil, err
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}
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if len(axes) == 0 {
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axes = append(axes, matrix.Axis{})
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}
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var items []*buildItem
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for i, axis := range axes {
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proc := &model.Proc{
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BuildID: b.Curr.ID,
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PID: i + 1,
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PGID: i + 1,
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State: model.StatusPending,
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Environ: axis,
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}
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metadata := metadataFromStruct(b.Repo, b.Curr, b.Last, proc, b.Link)
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environ := metadata.Environ()
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for k, v := range metadata.EnvironDrone() {
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environ[k] = v
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}
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for k, v := range axis {
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environ[k] = v
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}
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var secrets []compiler.Secret
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for _, sec := range b.Secs {
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if !sec.Match(b.Curr.Event) {
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continue
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}
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secrets = append(secrets, compiler.Secret{
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Name: sec.Name,
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Value: sec.Value,
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Match: sec.Images,
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})
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}
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y := b.Yaml
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s, err := envsubst.Eval(y, func(name string) string {
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return environ[name]
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})
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if err != nil {
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return nil, err
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}
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y = s
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parsed, err := yaml.ParseString(y)
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if err != nil {
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return nil, err
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}
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metadata.Sys.Arch = parsed.Platform
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if metadata.Sys.Arch == "" {
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metadata.Sys.Arch = "linux/amd64"
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}
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lerr := linter.New(
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linter.WithTrusted(b.Repo.IsTrusted),
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).Lint(parsed)
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if lerr != nil {
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return nil, err
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}
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var registries []compiler.Registry
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for _, reg := range b.Regs {
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registries = append(registries, compiler.Registry{
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Username: reg.Username,
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Password: reg.Password,
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Email: reg.Email,
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})
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}
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ir := compiler.New(
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compiler.WithEnviron(environ),
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// TODO ability to customize the escalated plugins
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compiler.WithEscalated("plugins/docker", "plugins/gcr", "plugins/ecr"),
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compiler.WithLocal(false),
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compiler.WithOption(
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compiler.WithNetrc(
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b.Netrc.Login,
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b.Netrc.Password,
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b.Netrc.Machine,
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),
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b.Repo.IsPrivate,
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),
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compiler.WithRegistry(registries...),
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compiler.WithSecret(secrets...),
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compiler.WithPrefix(
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fmt.Sprintf(
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"%d_%d",
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proc.ID,
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time.Now().Unix(),
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),
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),
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compiler.WithEnviron(proc.Environ),
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compiler.WithProxy(),
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// TODO ability to set global volumes for things like certs
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compiler.WithVolumes(),
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compiler.WithWorkspaceFromURL("/drone", b.Curr.Link),
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compiler.WithMetadata(metadata),
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).Compile(parsed)
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// for _, sec := range b.Secs {
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// if !sec.MatchEvent(b.Curr.Event) {
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// continue
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// }
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// if b.Curr.Verified || sec.SkipVerify {
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// ir.Secrets = append(ir.Secrets, &backend.Secret{
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// Mask: sec.Conceal,
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// Name: sec.Name,
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// Value: sec.Value,
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// })
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// }
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// }
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item := &buildItem{
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Proc: proc,
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Config: ir,
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Labels: parsed.Labels,
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Platform: metadata.Sys.Arch,
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}
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if item.Labels == nil {
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item.Labels = map[string]string{}
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}
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items = append(items, item)
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}
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return items, nil
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}
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