root
76 lines
2.2 KiB
Go
76 lines
2.2 KiB
Go
// Copyright 2026 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package jobparser
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import (
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"errors"
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"fmt"
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"path"
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"regexp"
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"strings"
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)
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// UsesKind enumerates the supported forms of a reusable workflow "uses:" value.
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type UsesKind int
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const (
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// UsesKindLocalSameRepo is "./.gitea/workflows/foo.yml" - a path inside the calling repository.
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UsesKindLocalSameRepo UsesKind = iota + 1
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// UsesKindLocalCrossRepo is "owner/repo/.gitea/workflows/foo.yml@ref" - a workflow in another repo on the same instance.
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UsesKindLocalCrossRepo
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)
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// UsesRef is the parsed form of a reusable workflow "uses:" value.
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type UsesRef struct {
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Kind UsesKind
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Owner string // empty for UsesKindLocalSameRepo
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Repo string // empty for UsesKindLocalSameRepo
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Path string // workflow file path inside the source repo
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Ref string // git ref; empty for UsesKindLocalSameRepo
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}
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var (
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reLocalSameRepo = regexp.MustCompile(`^\./\.(gitea|github)/workflows/([^@]+\.ya?ml)$`)
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reLocalCrossRepo = regexp.MustCompile(`^([-.\w]+)/([-.\w]+)/\.(gitea|github)/workflows/([^@]+\.ya?ml)@(.+)$`)
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)
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// ParseUses parses a reusable workflow "uses:" value.
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// Only two forms are supported:
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// - "./.gitea/workflows/foo.yml" (UsesKindLocalSameRepo, no @ref)
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// - "OWNER/REPO/.gitea/workflows/foo.yml@REF" (UsesKindLocalCrossRepo)
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func ParseUses(s string) (*UsesRef, error) {
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s = strings.TrimSpace(s)
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if s == "" {
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return nil, errors.New("empty uses value")
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}
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if strings.HasPrefix(s, "./") {
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m := reLocalSameRepo.FindStringSubmatch(s)
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if m == nil {
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return nil, fmt.Errorf(`invalid local "uses:" %q (expect ./.gitea/workflows/<file>.yml)`, s)
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}
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p := fmt.Sprintf(".%s/workflows/%s", m[1], m[2])
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if path.Clean(p) != p {
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return nil, fmt.Errorf("invalid workflow path %q", s)
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}
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return &UsesRef{Kind: UsesKindLocalSameRepo, Path: p}, nil
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}
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m := reLocalCrossRepo.FindStringSubmatch(s)
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if m == nil {
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return nil, fmt.Errorf(`invalid cross-repo "uses:" %q (expect owner/repo/.gitea/workflows/<file>.yml@ref)`, s)
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}
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p := fmt.Sprintf(".%s/workflows/%s", m[3], m[4])
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if path.Clean(p) != p {
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return nil, fmt.Errorf("invalid workflow path %q", s)
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}
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return &UsesRef{
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Kind: UsesKindLocalCrossRepo,
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Owner: m[1],
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Repo: m[2],
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Path: p,
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Ref: m[5],
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}, nil
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}
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