harness-drone/server/hooks.go
2015-05-12 23:58:30 -07:00

161 lines
4 KiB
Go

package server
import (
"strings"
log "github.com/Sirupsen/logrus"
"github.com/drone/drone/common"
"github.com/drone/drone/parser"
"github.com/drone/drone/parser/inject"
"github.com/drone/drone/parser/matrix"
"github.com/drone/drone/queue"
"github.com/gin-gonic/gin"
)
// PostHook accepts a post-commit hook and parses the payload
// in order to trigger a build.
//
// GET /api/hook
//
func PostHook(c *gin.Context) {
remote := ToRemote(c)
store := ToDatastore(c)
queue_ := ToQueue(c)
sess := ToSession(c)
hook, err := remote.Hook(c.Request)
if err != nil {
log.Errorf("failure to parse hook. %s", err)
c.Fail(400, err)
return
}
if hook == nil {
c.Writer.WriteHeader(200)
return
}
if hook.Repo == nil {
log.Errorf("failure to ascertain repo from hook.")
c.Writer.WriteHeader(400)
return
}
// get the token and verify the hook is authorized
token := sess.GetLogin(c.Request)
if token == nil || token.Label != hook.Repo.FullName {
log.Errorf("invalid token sent with hook.")
c.AbortWithStatus(403)
return
}
// a build may be skipped if the text [CI SKIP]
// is found inside the commit message
if hook.Commit != nil && strings.Contains(hook.Commit.Message, "[CI SKIP]") {
log.Infof("ignoring hook. [ci skip] found for %s")
c.Writer.WriteHeader(204)
return
}
repo, err := store.RepoName(hook.Repo.Owner, hook.Repo.Name)
if err != nil {
log.Errorf("failure to find repo %s/%s from hook. %s", hook.Repo.Owner, hook.Repo.Name, err)
c.Fail(404, err)
return
}
switch {
case repo.UserID == 0:
log.Warnf("ignoring hook. repo %s has no owner.", repo.FullName)
c.Writer.WriteHeader(204)
return
case !repo.PostCommit && hook.Commit.PullRequest != "":
log.Infof("ignoring hook. repo %s is disabled.", repo.FullName)
c.Writer.WriteHeader(204)
return
case !repo.PullRequest && hook.Commit.PullRequest == "":
log.Warnf("ignoring hook. repo %s is disabled for pull requests.", repo.FullName)
c.Writer.WriteHeader(204)
return
}
user, err := store.User(repo.UserID)
if err != nil {
log.Errorf("failure to find repo owner %s. %s", repo.FullName, err)
c.Fail(500, err)
return
}
commit := hook.Commit
commit.State = common.StatePending
commit.RepoID = repo.ID
// featch the .drone.yml file from the database
raw, err := remote.Script(user, repo, commit)
if err != nil {
log.Errorf("failure to get .drone.yml for %s. %s", repo.FullName, err)
c.Fail(404, err)
return
}
// inject any private parameters into the .drone.yml
if repo.Params != nil && len(repo.Params) != 0 {
raw = []byte(inject.InjectSafe(string(raw), repo.Params))
}
axes, err := matrix.Parse(string(raw))
if err != nil {
log.Errorf("failure to calculate matrix for %s. %s", repo.FullName, err)
c.Fail(404, err)
return
}
if len(axes) == 0 {
axes = append(axes, matrix.Axis{})
}
for num, axis := range axes {
commit.Builds = append(commit.Builds, &common.Build{
CommitID: commit.ID,
Sequence: num + 1,
State: common.StatePending,
Environment: axis,
})
}
keys := &common.Keypair{
Public: repo.PublicKey,
Private: repo.PrivateKey,
}
netrc, err := remote.Netrc(user)
if err != nil {
log.Errorf("failure to generate netrc for %s. %s", repo.FullName, err)
c.Fail(500, err)
return
}
// verify the branches can be built vs skipped
when, _ := parser.ParseCondition(string(raw))
if commit.PullRequest != "" && when != nil && !when.MatchBranch(commit.Branch) {
log.Infof("ignoring hook. yaml file excludes repo and branch %s %s", repo.FullName, commit.Branch)
c.AbortWithStatus(200)
return
}
err = store.AddCommit(commit)
if err != nil {
log.Errorf("failure to save commit for %s. %s", repo.FullName, err)
c.Fail(500, err)
return
}
c.JSON(200, commit)
err = remote.Status(user, repo, commit)
if err != nil {
log.Errorf("error setting commit status for %s/%d", repo.FullName, commit.Sequence)
}
queue_.Publish(&queue.Work{
User: user,
Repo: repo,
Commit: commit,
Keys: keys,
Netrc: netrc,
Yaml: raw,
})
}