tvl-depot/gerrit/changeset.go

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package gerrit
import (
"bytes"
"fmt"
goGerrit "github.com/andygrunwald/go-gerrit"
"github.com/apex/log"
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)
// Changeset represents a single changeset
// Relationships between different changesets are described in Series
type Changeset struct {
changeInfo *goGerrit.ChangeInfo
ChangeID string
Number int
Verified int
CodeReviewed int
Submittable bool
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HashTags []string
CommitID string
ParentCommitIDs []string
OwnerName string
Subject string
}
// MakeChangeset creates a new Changeset object out of a goGerrit.ChangeInfo object
func MakeChangeset(changeInfo *goGerrit.ChangeInfo) *Changeset {
return &Changeset{
changeInfo: changeInfo,
ChangeID: changeInfo.ChangeID,
Number: changeInfo.Number,
Verified: labelInfoToInt(changeInfo.Labels["Verified"]),
CodeReviewed: labelInfoToInt(changeInfo.Labels["Code-Review"]),
Submittable: changeInfo.Submittable,
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HashTags: changeInfo.Hashtags,
CommitID: changeInfo.CurrentRevision, // yes, this IS the commit ID.
ParentCommitIDs: getParentCommitIDs(changeInfo),
OwnerName: changeInfo.Owner.Name,
Subject: changeInfo.Subject,
}
}
// HasTag returns true if a Changeset has the given tag.
func (c *Changeset) HasTag(tag string) bool {
hashTags := c.HashTags
for _, hashTag := range hashTags {
if hashTag == tag {
return true
}
}
return false
}
// IsVerified returns true if the changeset passed CI,
// that's when somebody left the Approved (+1) on the "Verified" label
func (c *Changeset) IsVerified() bool {
return c.Verified == 1
}
// IsCodeReviewed returns true if the changeset passed code review,
// that's when somebody left the Recommended (+2) on the "Code-Review" label
func (c *Changeset) IsCodeReviewed() bool {
return c.CodeReviewed == 2
}
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func (c *Changeset) String() string {
var b bytes.Buffer
b.WriteString("Changeset")
b.WriteString(fmt.Sprintf("(commitID: %.7s, author: %s, subject: %s, submittable: %v)",
c.CommitID, c.OwnerName, c.Subject, c.Submittable))
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return b.String()
}
// FilterChangesets filters a list of Changeset by a given filter function
func FilterChangesets(changesets []*Changeset, f func(*Changeset) bool) []*Changeset {
newChangesets := make([]*Changeset, 0)
for _, changeset := range changesets {
if f(changeset) {
newChangesets = append(newChangesets, changeset)
} else {
log.WithField("changeset", changeset.String()).Debug("dropped by filter")
}
}
return newChangesets
}
// labelInfoToInt converts a goGerrit.LabelInfo to -2…+2 int
func labelInfoToInt(labelInfo goGerrit.LabelInfo) int {
if labelInfo.Recommended.AccountID != 0 {
return 2
}
if labelInfo.Approved.AccountID != 0 {
return 1
}
if labelInfo.Disliked.AccountID != 0 {
return -1
}
if labelInfo.Rejected.AccountID != 0 {
return -2
}
return 0
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}
// getParentCommitIDs returns the parent commit IDs of the goGerrit.ChangeInfo
// There is usually only one parent commit ID, except for merge commits.
func getParentCommitIDs(changeInfo *goGerrit.ChangeInfo) []string {
// obtain the RevisionInfo object
revisionInfo := changeInfo.Revisions[changeInfo.CurrentRevision]
// obtain the Commit object
commit := revisionInfo.Commit
commitIDs := make([]string, len(commit.Parents))
for i, commit := range commit.Parents {
commitIDs[i] = commit.Commit
}
return commitIDs
}