drone-yaml/yaml/pretty/pipeline.go

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// Copyright (c) 2019, Drone IO Inc.
// Copyright (c) 2021, Robert Kaussow <mail@thegeeklab.de>
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package pretty
import (
"github.com/drone/drone-yaml/yaml"
)
// helper function to pretty print the pipeline resource.
func printPipeline(w writer, v *yaml.Pipeline) {
w.WriteString("---")
w.WriteTagValue("version", v.Version)
w.WriteTagValue("kind", v.Kind)
w.WriteTagValue("type", v.Type)
w.WriteTagValue("name", v.Name)
w.WriteByte('\n')
if !isPlatformEmpty(v.Platform) {
printPlatform(w, v.Platform)
} else {
printPlatformDefault(w)
}
if !isCloneEmpty(v.Clone) {
printClone(w, v.Clone)
}
if !isConcurrencyEmpty(v.Concurrency) {
printConcurrency(w, v.Concurrency)
}
if !isWorkspaceEmpty(v.Workspace) {
printWorkspace(w, v.Workspace)
}
if len(v.Steps) > 0 {
w.WriteTag("steps")
for _, step := range v.Steps {
if step == nil {
continue
}
seq := new(indexWriter)
seq.writer = w
seq.IndentIncrease()
printContainer(seq, step)
seq.IndentDecrease()
}
}
if len(v.Services) > 0 {
w.WriteTag("services")
for _, step := range v.Services {
if step == nil {
continue
}
seq := new(indexWriter)
seq.writer = w
seq.IndentIncrease()
printContainer(seq, step)
seq.IndentDecrease()
}
}
if len(v.Volumes) != 0 {
printVolumes(w, v.Volumes)
w.WriteByte('\n')
}
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if len(v.PullSecrets) > 0 {
w.WriteTagValue("image_pull_secrets", v.PullSecrets)
w.WriteByte('\n')
}
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if len(v.Node) > 0 {
printNode(w, v.Node)
w.WriteByte('\n')
}
if !isConditionsEmpty(v.Trigger) {
printConditions(w, "trigger", v.Trigger)
w.WriteByte('\n')
}
if len(v.DependsOn) > 0 {
printDependsOn(w, v.DependsOn)
w.WriteByte('\n')
}
w.WriteByte('\n')
}
// helper function pretty prints the clone block.
func printClone(w writer, v yaml.Clone) {
w.WriteTag("clone")
w.IndentIncrease()
w.WriteTagValue("depth", v.Depth)
w.WriteTagValue("disable", v.Disable)
w.WriteTagValue("skip_verify", v.SkipVerify)
w.WriteByte('\n')
w.IndentDecrease()
}
// helper function pretty prints the clone block.
func printConcurrency(w writer, v yaml.Concurrency) {
w.WriteTag("concurrency")
w.IndentIncrease()
w.WriteTagValue("limit", v.Limit)
w.WriteByte('\n')
w.IndentDecrease()
}
// helper function pretty prints the conditions mapping.
func printConditions(w writer, name string, v yaml.Conditions) {
w.WriteTag(name)
w.IndentIncrease()
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if !isConditionEmpty(v.Action) {
printCondition(w, "action", v.Action)
}
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if !isConditionEmpty(v.Branch) {
printCondition(w, "branch", v.Branch)
}
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if !isConditionEmpty(v.Cron) {
printCondition(w, "cron", v.Cron)
}
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if !isConditionEmpty(v.Event) {
printCondition(w, "event", v.Event)
}
if !isConditionEmpty(v.Instance) {
printCondition(w, "instance", v.Instance)
}
if !isConditionEmpty(v.Paths) {
printCondition(w, "paths", v.Paths)
}
if !isConditionEmpty(v.Ref) {
printCondition(w, "ref", v.Ref)
}
if !isConditionEmpty(v.Repo) {
printCondition(w, "repo", v.Repo)
}
if !isConditionEmpty(v.Status) {
printCondition(w, "status", v.Status)
}
if !isConditionEmpty(v.Target) {
printCondition(w, "target", v.Target)
}
w.IndentDecrease()
}
// helper function pretty prints a condition mapping.
func printCondition(w writer, k string, v yaml.Condition) {
w.WriteTag(k)
if len(v.Include) != 0 && len(v.Exclude) == 0 {
w.WriteByte('\n')
w.IndentIncrease()
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w.Indent()
writeValue(w, v.Include)
w.IndentDecrease()
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}
if len(v.Include) != 0 && len(v.Exclude) != 0 {
w.IndentIncrease()
w.WriteTagValue("include", v.Include)
w.IndentDecrease()
}
if len(v.Exclude) != 0 {
w.IndentIncrease()
w.WriteTagValue("exclude", v.Exclude)
w.IndentDecrease()
}
}
// helper function pretty prints the node mapping.
func printNode(w writer, v map[string]string) {
w.WriteTagValue("node", v)
}
// helper function pretty prints the target platform.
func printPlatform(w writer, v yaml.Platform) {
w.WriteTag("platform")
w.IndentIncrease()
w.WriteTagValue("os", v.OS)
w.WriteTagValue("arch", v.Arch)
w.WriteTagValue("variant", v.Variant)
w.WriteTagValue("version", v.Version)
w.WriteByte('\n')
w.IndentDecrease()
}
// helper function prints default platform values.
// Including target platform is considered a best-practive.
func printPlatformDefault(w writer) {
w.WriteTag("platform")
w.IndentIncrease()
w.WriteTagValue("os", "linux")
w.WriteTagValue("arch", "amd64")
w.WriteByte('\n')
w.IndentDecrease()
}
// helper function pretty prints the volume sequence.
func printVolumes(w writer, v []*yaml.Volume) {
w.WriteTag("volumes")
for _, v := range v {
s := new(indexWriter)
s.writer = w
w.IndentIncrease()
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s.IndentIncrease()
s.WriteTagValue("name", v.Name)
if v := v.EmptyDir; v != nil {
s.WriteTag("temp")
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if isEmptyDirEmpty(v) {
w.WriteByte(' ')
w.WriteByte('{')
w.WriteByte('}')
} else {
s.IndentIncrease()
s.WriteTagValue("medium", v.Medium)
s.WriteTagValue("size_limit", v.SizeLimit)
s.IndentDecrease()
}
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}
if v := v.HostPath; v != nil {
s.WriteTag("host")
s.IndentIncrease()
s.WriteTagValue("path", v.Path)
s.IndentDecrease()
}
s.IndentDecrease()
w.IndentDecrease()
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}
}
// helper function pretty prints the workspace block.
func printWorkspace(w writer, v yaml.Workspace) {
w.WriteTag("workspace")
w.IndentIncrease()
w.WriteTagValue("base", v.Base)
w.WriteTagValue("path", v.Path)
w.WriteByte('\n')
w.IndentDecrease()
}
// helper function returns true if the workspace
// object is empty.
func isWorkspaceEmpty(v yaml.Workspace) bool {
return v.Path == "" && v.Base == ""
}
// helper function returns true if the platform
// object is empty.
func isPlatformEmpty(v yaml.Platform) bool {
return v.OS == "" &&
v.Arch == "" &&
v.Variant == "" &&
v.Version == ""
}
// helper function returns true if the clone
// object is empty.
func isCloneEmpty(v yaml.Clone) bool {
return v.Depth == 0 &&
!v.Disable &&
!v.SkipVerify
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}
// helper function returns true if the concurrency
// object is empty.
func isConcurrencyEmpty(v yaml.Concurrency) bool {
return v.Limit == 0
}
// helper function returns true if the conditions
// object is empty.
func isConditionsEmpty(v yaml.Conditions) bool {
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return isConditionEmpty(v.Action) &&
isConditionEmpty(v.Branch) &&
isConditionEmpty(v.Cron) &&
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isConditionEmpty(v.Event) &&
isConditionEmpty(v.Instance) &&
isConditionEmpty(v.Paths) &&
isConditionEmpty(v.Ref) &&
isConditionEmpty(v.Repo) &&
isConditionEmpty(v.Status) &&
isConditionEmpty(v.Target)
}
// helper function returns true if the condition
// object is empty.
func isConditionEmpty(v yaml.Condition) bool {
return len(v.Exclude) == 0 && len(v.Include) == 0
}
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// helper function returns true if the emptydir
// object is empty.
func isEmptyDirEmpty(v *yaml.VolumeEmptyDir) bool {
return v.SizeLimit == 0 && len(v.Medium) == 0
}