mirror of
https://github.com/woodpecker-ci/woodpecker.git
synced 2024-12-12 08:23:48 +02:00
405 lines
10 KiB
Go
405 lines
10 KiB
Go
// Copyright 2022 Woodpecker Authors
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// Copyright 2018 Drone.IO Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package pipeline
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import (
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"fmt"
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"math/rand"
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"net/url"
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"path/filepath"
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"strings"
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"github.com/drone/envsubst"
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"github.com/rs/zerolog/log"
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backend "github.com/woodpecker-ci/woodpecker/pipeline/backend/types"
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"github.com/woodpecker-ci/woodpecker/pipeline/frontend"
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"github.com/woodpecker-ci/woodpecker/pipeline/frontend/yaml"
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"github.com/woodpecker-ci/woodpecker/pipeline/frontend/yaml/compiler"
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"github.com/woodpecker-ci/woodpecker/pipeline/frontend/yaml/linter"
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"github.com/woodpecker-ci/woodpecker/pipeline/frontend/yaml/matrix"
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"github.com/woodpecker-ci/woodpecker/server"
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forge_types "github.com/woodpecker-ci/woodpecker/server/forge/types"
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"github.com/woodpecker-ci/woodpecker/server/model"
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)
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// StepBuilder Takes the hook data and the yaml and returns in internal data model
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type StepBuilder struct {
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Repo *model.Repo
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Curr *model.Pipeline
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Last *model.Pipeline
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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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Yamls []*forge_types.FileMeta
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Envs map[string]string
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}
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type Item struct {
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Step *model.Step
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Platform string
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Labels map[string]string
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DependsOn []string
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RunsOn []string
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Config *backend.Config
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}
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func (b *StepBuilder) Build() ([]*Item, error) {
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var items []*Item
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b.Yamls = forge_types.SortByName(b.Yamls)
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pidSequence := 1
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for _, y := range b.Yamls {
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// matrix axes
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axes, err := matrix.ParseString(string(y.Data))
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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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for _, axis := range axes {
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step := &model.Step{
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PipelineID: b.Curr.ID,
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PID: pidSequence,
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PGID: pidSequence,
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State: model.StatusPending,
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Environ: axis,
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Name: SanitizePath(y.Name),
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}
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metadata := metadataFromStruct(b.Repo, b.Curr, b.Last, step, b.Link)
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environ := b.environmentVariables(metadata, axis)
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// add global environment variables for substituting
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for k, v := range b.Envs {
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if _, exists := environ[k]; exists {
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// don't override existing values
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continue
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}
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environ[k] = v
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}
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// substitute vars
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substituted, err := b.envsubst(string(y.Data), environ)
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if err != nil {
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return nil, err
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}
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// parse yaml pipeline
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parsed, err := yaml.ParseString(substituted)
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if err != nil {
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return nil, &yaml.PipelineParseError{Err: err}
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}
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// lint pipeline
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if err := linter.New(
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linter.WithTrusted(b.Repo.IsTrusted),
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).Lint(parsed); err != nil {
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return nil, &yaml.PipelineParseError{Err: err}
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}
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// checking if filtered.
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if match, err := parsed.When.Match(metadata, true); !match && err == nil {
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log.Debug().Str("pipeline", step.Name).Msg(
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"Marked as skipped, dose not match metadata",
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)
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step.State = model.StatusSkipped
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} else if err != nil {
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log.Debug().Str("pipeline", step.Name).Msg(
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"Pipeline config could not be parsed",
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)
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return nil, err
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}
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// TODO: deprecated branches filter => remove after some time
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if !parsed.Branches.Match(b.Curr.Branch) && (b.Curr.Event != model.EventDeploy && b.Curr.Event != model.EventTag) {
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log.Debug().Str("pipeline", step.Name).Msg(
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"Marked as skipped, dose not match branch",
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)
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step.State = model.StatusSkipped
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}
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ir, err := b.toInternalRepresentation(parsed, environ, metadata, step.ID)
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if err != nil {
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return nil, err
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}
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if len(ir.Stages) == 0 {
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continue
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}
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item := &Item{
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Step: step,
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Config: ir,
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Labels: parsed.Labels,
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DependsOn: parsed.DependsOn,
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RunsOn: parsed.RunsOn,
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Platform: parsed.Platform,
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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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pidSequence++
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}
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}
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items = filterItemsWithMissingDependencies(items)
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// check if at least one step can start, if list is not empty
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if len(items) > 0 && !stepListContainsItemsToRun(items) {
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return nil, fmt.Errorf("pipeline has no startpoint")
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}
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return items, nil
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}
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func stepListContainsItemsToRun(items []*Item) bool {
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for i := range items {
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if items[i].Step.State == model.StatusPending {
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return true
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}
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}
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return false
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}
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func filterItemsWithMissingDependencies(items []*Item) []*Item {
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itemsToRemove := make([]*Item, 0)
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for _, item := range items {
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for _, dep := range item.DependsOn {
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if !containsItemWithName(dep, items) {
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itemsToRemove = append(itemsToRemove, item)
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}
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}
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}
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if len(itemsToRemove) > 0 {
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filtered := make([]*Item, 0)
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for _, item := range items {
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if !containsItemWithName(item.Step.Name, itemsToRemove) {
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filtered = append(filtered, item)
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}
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}
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// Recursive to handle transitive deps
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return filterItemsWithMissingDependencies(filtered)
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}
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return items
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}
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func containsItemWithName(name string, items []*Item) bool {
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for _, item := range items {
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if name == item.Step.Name {
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return true
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}
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}
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return false
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}
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func (b *StepBuilder) envsubst(y string, environ map[string]string) (string, error) {
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return envsubst.Eval(y, func(name string) string {
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env := environ[name]
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if strings.Contains(env, "\n") {
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env = fmt.Sprintf("%q", env)
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}
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return env
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})
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}
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func (b *StepBuilder) environmentVariables(metadata frontend.Metadata, axis matrix.Axis) map[string]string {
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environ := metadata.Environ()
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for k, v := range axis {
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environ[k] = v
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}
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return environ
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}
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func (b *StepBuilder) toInternalRepresentation(parsed *yaml.Config, environ map[string]string, metadata frontend.Metadata, stepID int64) (*backend.Config, error) {
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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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PluginOnly: sec.PluginsOnly,
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})
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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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Hostname: reg.Address,
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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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return compiler.New(
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compiler.WithEnviron(environ),
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compiler.WithEnviron(b.Envs),
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compiler.WithEscalated(server.Config.Pipeline.Privileged...),
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compiler.WithResourceLimit(server.Config.Pipeline.Limits.MemSwapLimit, server.Config.Pipeline.Limits.MemLimit, server.Config.Pipeline.Limits.ShmSize, server.Config.Pipeline.Limits.CPUQuota, server.Config.Pipeline.Limits.CPUShares, server.Config.Pipeline.Limits.CPUSet),
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compiler.WithVolumes(server.Config.Pipeline.Volumes...),
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compiler.WithNetworks(server.Config.Pipeline.Networks...),
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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.IsSCMPrivate || server.Config.Pipeline.AuthenticatePublicRepos,
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),
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compiler.WithDefaultCloneImage(server.Config.Pipeline.DefaultCloneImage),
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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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"wp_%d_%d",
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stepID,
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rand.Int(),
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),
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),
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compiler.WithProxy(),
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compiler.WithWorkspaceFromURL("/woodpecker", b.Repo.Link),
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compiler.WithMetadata(metadata),
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).Compile(parsed)
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}
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func SetPipelineStepsOnPipeline(pipeline *model.Pipeline, pipelineItems []*Item) *model.Pipeline {
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var pidSequence int
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for _, item := range pipelineItems {
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pipeline.Steps = append(pipeline.Steps, item.Step)
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if pidSequence < item.Step.PID {
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pidSequence = item.Step.PID
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}
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}
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for _, item := range pipelineItems {
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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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pidSequence++
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if gid == 0 {
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gid = pidSequence
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}
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step := &model.Step{
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PipelineID: pipeline.ID,
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Name: step.Alias,
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PID: pidSequence,
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PPID: item.Step.PID,
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PGID: gid,
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State: model.StatusPending,
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}
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if item.Step.State == model.StatusSkipped {
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step.State = model.StatusSkipped
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}
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pipeline.Steps = append(pipeline.Steps, step)
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}
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}
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}
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return pipeline
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}
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// return the metadata from the cli context.
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func metadataFromStruct(repo *model.Repo, pipeline, last *model.Pipeline, step *model.Step, link string) frontend.Metadata {
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host := link
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uri, err := url.Parse(link)
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if err == nil {
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host = uri.Host
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}
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return frontend.Metadata{
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Repo: frontend.Repo{
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Name: repo.FullName,
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Link: repo.Link,
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CloneURL: repo.Clone,
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Private: repo.IsSCMPrivate,
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Branch: repo.Branch,
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},
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Curr: metadataPipelineFromModelPipeline(pipeline, true),
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Prev: metadataPipelineFromModelPipeline(last, false),
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Step: frontend.Step{
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Number: step.PID,
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Matrix: step.Environ,
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},
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Sys: frontend.System{
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Name: "woodpecker",
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Link: link,
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Host: host,
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Platform: "", // will be set by pipeline platform option or by agent
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},
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}
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}
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func metadataPipelineFromModelPipeline(pipeline *model.Pipeline, includeParent bool) frontend.Pipeline {
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cron := ""
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if pipeline.Event == model.EventCron {
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cron = pipeline.Sender
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}
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parent := int64(0)
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if includeParent {
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parent = pipeline.Parent
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}
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return frontend.Pipeline{
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Number: pipeline.Number,
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Parent: parent,
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Created: pipeline.Created,
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Started: pipeline.Started,
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Finished: pipeline.Finished,
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Status: string(pipeline.Status),
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Event: string(pipeline.Event),
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Link: pipeline.Link,
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Target: pipeline.Deploy,
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Commit: frontend.Commit{
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Sha: pipeline.Commit,
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Ref: pipeline.Ref,
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Refspec: pipeline.Refspec,
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Branch: pipeline.Branch,
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Message: pipeline.Message,
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Author: frontend.Author{
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Name: pipeline.Author,
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Email: pipeline.Email,
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Avatar: pipeline.Avatar,
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},
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ChangedFiles: pipeline.ChangedFiles,
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PullRequestLabels: pipeline.PullRequestLabels,
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},
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Cron: cron,
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}
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}
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func SanitizePath(path string) string {
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path = filepath.Base(path)
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path = strings.TrimSuffix(path, ".yml")
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path = strings.TrimSuffix(path, ".yaml")
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path = strings.TrimPrefix(path, ".")
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return path
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}
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