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check.go
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check.go
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package resource
import (
"fmt"
"path/filepath"
"regexp"
"sort"
"strings"
"github.com/shurcooL/githubv4"
)
var trustedTeamMembers map[string]bool = map[string]bool{}
// Check (business logic)
func Check(request CheckRequest, manager Github) (CheckResponse, error) {
var response CheckResponse
// Filter out pull request if it does not have a filtered state
filterStates := []githubv4.PullRequestState{githubv4.PullRequestStateOpen}
if len(request.Source.States) > 0 {
filterStates = request.Source.States
}
pulls, err := manager.ListPullRequests(filterStates)
if err != nil {
return nil, fmt.Errorf("failed to get last commits: %s", err)
}
disableSkipCI := request.Source.DisableCISkip
Loop:
for _, p := range pulls {
// [ci skip]/[skip ci] in Pull request title
if !disableSkipCI && ContainsSkipCI(p.Title) {
continue
}
// [ci skip]/[skip ci] in Commit message
if !disableSkipCI && ContainsSkipCI(p.Tip.Message) {
continue
}
// Filter pull request if the BaseBranch does not match the one specified in source
if request.Source.BaseBranch != "" && p.PullRequestObject.BaseRefName != request.Source.BaseBranch {
continue
}
// Filter out pull request if it does not contain at least one of the desired labels
if len(request.Source.Labels) > 0 {
labelFound := false
LabelLoop:
for _, wantedLabel := range request.Source.Labels {
for _, targetLabel := range p.Labels {
if targetLabel.Name == wantedLabel {
labelFound = true
break LabelLoop
}
}
}
if !labelFound {
continue Loop
}
}
// Filter out forks.
if request.Source.DisableForks && p.IsCrossRepository {
continue
}
// Filter out drafts.
if request.Source.IgnoreDrafts && p.IsDraft {
continue
}
prAuthorTrusted, err := userTrusted(p.Author.Login, request.Source.TrustedUsers, request.Source.TrustedTeams, manager)
if err != nil {
return nil, fmt.Errorf("failed to list users in team %v: %s", request.Source.TrustedTeams, err)
}
prApproved := p.ApprovedReviewCount >= request.Source.RequiredReviewApprovals
if !prAuthorTrusted && !prApproved {
continue
}
// Fetch files once if paths/ignore_paths are specified.
var files []string
if len(request.Source.Paths) > 0 || len(request.Source.IgnorePaths) > 0 {
files, err = manager.ListModifiedFiles(p.Number)
if err != nil {
return nil, fmt.Errorf("failed to list modified files: %s", err)
}
}
// Skip version if no files match the specified paths.
if len(request.Source.Paths) > 0 {
var wanted []string
for _, pattern := range request.Source.Paths {
w, err := FilterPath(files, pattern)
if err != nil {
return nil, fmt.Errorf("path match failed: %s", err)
}
wanted = append(wanted, w...)
}
if len(wanted) == 0 {
continue Loop
}
}
// Skip version if all files are ignored.
if len(request.Source.IgnorePaths) > 0 {
wanted := files
for _, pattern := range request.Source.IgnorePaths {
wanted, err = FilterIgnorePath(wanted, pattern)
if err != nil {
return nil, fmt.Errorf("ignore path match failed: %s", err)
}
}
if len(wanted) == 0 {
continue Loop
}
}
response = append(response, NewVersion(p))
}
// Sort the commits by date
sort.Sort(response)
// If there are no new but an old version = return the old
if len(response) == 0 && request.Version.PR != "" {
response = append(response, request.Version)
}
// If there are new versions and no previous = return just the latest
if len(response) != 0 && request.Version.PR == "" {
response = CheckResponse{response[len(response)-1]}
}
return response, nil
}
func userTrusted(user string, trustedUsers, trustedTeams []string, manager Github) (bool, error) {
for _, u := range trustedUsers {
if user == u {
return true, nil
}
}
if trustedTeamMembers[user] {
return true, nil
}
for _, team := range trustedTeams {
teamMembers, err := manager.ListTeamMembers(team)
if err != nil {
return false, fmt.Errorf("failed to list team members of team %q: %s", trustedTeams, err)
}
for _, u := range teamMembers {
trustedTeamMembers[u] = true
}
if trustedTeamMembers[user] {
return true, nil
}
}
return false, nil
}
// ContainsSkipCI returns true if a string contains [ci skip] or [skip ci].
func ContainsSkipCI(s string) bool {
re := regexp.MustCompile(`(?i)\[(ci skip|skip ci)\]`)
return re.MatchString(s)
}
// FilterIgnorePath ...
func FilterIgnorePath(files []string, pattern string) ([]string, error) {
var out []string
for _, file := range files {
match, err := filepath.Match(pattern, file)
if err != nil {
return nil, err
}
if !match && !IsInsidePath(pattern, file) {
out = append(out, file)
}
}
return out, nil
}
// FilterPath ...
func FilterPath(files []string, pattern string) ([]string, error) {
var out []string
for _, file := range files {
match, err := filepath.Match(pattern, file)
if err != nil {
return nil, err
}
if match || IsInsidePath(pattern, file) {
out = append(out, file)
}
}
return out, nil
}
// IsInsidePath checks whether the child path is inside the parent path.
//
// /foo/bar is inside /foo, but /foobar is not inside /foo.
// /foo is inside /foo, but /foo is not inside /foo/
func IsInsidePath(parent, child string) bool {
if parent == child {
return true
}
// we add a trailing slash so that we only get prefix matches on a
// directory separator
parentWithTrailingSlash := parent
if !strings.HasSuffix(parentWithTrailingSlash, string(filepath.Separator)) {
parentWithTrailingSlash += string(filepath.Separator)
}
return strings.HasPrefix(child, parentWithTrailingSlash)
}
// CheckRequest ...
type CheckRequest struct {
Source Source `json:"source"`
Version Version `json:"version"`
}
// CheckResponse ...
type CheckResponse []Version
func (r CheckResponse) Len() int {
return len(r)
}
func (r CheckResponse) Less(i, j int) bool {
return r[j].CommittedDate.After(r[i].CommittedDate)
}
func (r CheckResponse) Swap(i, j int) {
r[i], r[j] = r[j], r[i]
}