update implementation

go.mod

@@ -2,13 +2,21 @@ module github.com/tigorlazuardi/qbitrun
 
 go 1.22.3
 
+require (
+	github.com/samber/lo v1.44.0
+	github.com/spf13/cobra v1.8.1
+	github.com/stretchr/testify v1.9.0
+	gopkg.in/yaml.v3 v3.0.1
+)
+
 require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
+	github.com/kr/pretty v0.3.0 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
-	github.com/sourcegraph/conc v0.3.0 // indirect
+	github.com/rogpeppe/go-internal v1.9.0 // indirect
-	github.com/spf13/cobra v1.8.1 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
-	github.com/stretchr/testify v1.9.0 // indirect
+	github.com/valyala/bytebufferpool v1.0.0 // indirect
-	gopkg.in/yaml.v3 v3.0.1 // indirect
+	github.com/valyala/fasttemplate v1.2.2 // indirect
+	gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 // indirect
 )

go.sum

@@ -1,19 +1,38 @@
 github.com/cpuguy83/go-md2man/v2 v2.0.4/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
+github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
 github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
+github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
+github.com/kr/pretty v0.3.0 h1:WgNl7dwNpEZ6jJ9k1snq4pZsg7DOEN8hP9Xw0Tsjwk0=
+github.com/kr/pretty v0.3.0/go.mod h1:640gp4NfQd8pI5XOwp5fnNeVWj67G7CFk/SaSQn7NBk=
+github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
+github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
+github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
+github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/rogpeppe/go-internal v1.6.1/go.mod h1:xXDCJY+GAPziupqXw64V24skbSoqbTEfhy4qGm1nDQc=
+github.com/rogpeppe/go-internal v1.9.0 h1:73kH8U+JUqXU8lRuOHeVHaa/SZPifC7BkcraZVejAe8=
+github.com/rogpeppe/go-internal v1.9.0/go.mod h1:WtVeX8xhTBvf0smdhujwtBcq4Qrzq/fJaraNFVN+nFs=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
-github.com/sourcegraph/conc v0.3.0 h1:OQTbbt6P72L20UqAkXXuLOj79LfEanQ+YQFNpLA9ySo=
+github.com/samber/lo v1.44.0 h1:5il56KxRE+GHsm1IR+sZ/6J42NODigFiqCWpSc2dybA=
-github.com/sourcegraph/conc v0.3.0/go.mod h1:Sdozi7LEKbFPqYX2/J+iBAM6HpqSLTASQIKqDmF7Mt0=
+github.com/samber/lo v1.44.0/go.mod h1:RmDH9Ct32Qy3gduHQuKJ3gW1fMHAnE/fAzQuf6He5cU=
 github.com/spf13/cobra v1.8.1 h1:e5/vxKd/rZsfSJMUX1agtjeTDf+qv1/JdBF8gg5k9ZM=
 github.com/spf13/cobra v1.8.1/go.mod h1:wHxEcudfqmLYa8iTfL+OuZPbBZkmvliBWKIezN3kD9Y=
 github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
 github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
 github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
 github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=
+github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
+github.com/valyala/fasttemplate v1.2.2 h1:lxLXG0uE3Qnshl9QyaK6XJxMXlQZELvChBOCmQD0Loo=
+github.com/valyala/fasttemplate v1.2.2/go.mod h1:KHLXt3tVN2HBp8eijSv/kGJopbvo7S+qRAEEKiv+SiQ=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
+gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

lib/workflow/context.go

@@ -0,0 +1,24 @@
+package workflow
+
+type Context struct {
+	TorrentName    string
+	Category       string
+	Tags           []string
+	ContentPath    string
+	RootPath       string
+	SavePath       string
+	NumberOfFiles  int
+	TorrentSize    uint64
+	CurrentTracker string
+	InfoHashV1     string
+	InfoHashV2     string
+	TorrentID      string
+	AddEvent       bool
+}
+
+func (c Context) AsMap() map[string]any {
+	return map[string]any{
+		"torrent_name": c.TorrentName,
+		"category":     c.Category,
+	}
+}

lib/workflow/open.go

@@ -7,17 +7,17 @@ import (
 	"os"
 	"path/filepath"
 
-	"github.com/sourcegraph/conc/iter"
+	lop "github.com/samber/lo/parallel"
 	"gopkg.in/yaml.v3"
 )
 
-type WorkflowFiles []io.ReadCloser
+type WorkflowFiles []io.Reader
 
 func (wo WorkflowFiles) Close() error {
 	var errs []error
-	for _, rc := range wo {
+	for _, reader := range wo {
-		if err := rc.Close(); err != nil {
+		if reader, ok := reader.(io.ReadCloser); ok {
-			errs = append(errs, err)
+			errs = append(errs, reader.Close())
 		}
 	}
 	return errors.Join(errs...)
@@ -25,19 +25,21 @@ func (wo WorkflowFiles) Close() error {
 
 func (wo WorkflowFiles) Workflows() ([]Workflow, error) {
 	var (
-		errs      = make([]error, len(wo))
+		errs      = []error{}
-		workflows = make([]Workflow, len(wo))
+		workflows = make([]Workflow, 0, len(wo))
 	)
 
-	iter.ForEachIdx(wo, func(i int, rc *io.ReadCloser) {
+	lop.ForEach(wo, func(reader io.Reader, _ int) {
 		var w Workflow
-		if err := yaml.NewDecoder(*rc).Decode(&w); err != nil {
+		if err := yaml.NewDecoder(reader).Decode(&w); err != nil {
-			errs[i] = err
+			errs = append(errs, err)
 		} else {
-			workflows[i] = w
+			workflows = append(workflows, w)
+		}
+		if rc, ok := reader.(io.ReadCloser); ok {
+			if err := rc.Close(); err != nil {
+				errs = append(errs, err)
 			}
-		if err := (*rc).Close(); err != nil && errs[i] == nil {
-			errs[i] = err
 		}
 	})
 
@@ -50,7 +52,7 @@ type DirFilter = func(path string, d fs.FileInfo) bool
 //
 // Set filter to filter out unwanted files.
 func OpenDir(dir string, filters ...DirFilter) (WorkflowFiles, error) {
-	var files []io.ReadCloser
+	var files []io.Reader
 	err := filepath.Walk(dir, func(path string, info fs.FileInfo, err error) error {
 		if err != nil {
 			return err
@@ -81,14 +83,6 @@ func OpenDir(dir string, filters ...DirFilter) (WorkflowFiles, error) {
 	return WorkflowFiles(files), nil
 }
 
-// WorkflowFromReadClosers creates a WorkflowInput from a list of io.ReadCloser.
-//
-// WorkflowFromReadClosers assumes ownership of the ReadClosers and will close
-// all of them after the WorkflowInput is consumed (whether successfully or not).
-func WorkflowFromReadClosers(rcs ...io.ReadCloser) WorkflowFiles {
-	return WorkflowFiles(rcs)
-}
-
 // WorkflowFromReaders creates a WorkflowInput from a list of io.Reader.
 //
 // If the Reader implements io.ReadCloser, it will be used as is.
@@ -97,13 +91,5 @@ func WorkflowFromReadClosers(rcs ...io.ReadCloser) WorkflowFiles {
 // WorkflowFromReaders assumes ownership of the Readers and will close (if implements io.ReadCloser)
 // all of them after the WorkflowInput is consumed (whether successfully or not).
 func WorkflowFromReaders(readers ...io.Reader) WorkflowFiles {
-	var rcs []io.ReadCloser
+	return WorkflowFiles(readers)
-	for _, r := range readers {
-		if rc, ok := r.(io.ReadCloser); ok {
-			rcs = append(rcs, rc)
-		} else {
-			rcs = append(rcs, io.NopCloser(r))
-		}
-	}
-	return WorkflowFiles(rcs)
 }

lib/workflow/steps.go

@@ -0,0 +1,52 @@
+package workflow
+
+import (
+	"fmt"
+	"io"
+	"strings"
+
+	"github.com/valyala/fasttemplate"
+)
+
+type Step struct {
+	Name  string `yaml:"name"`
+	Run   string `yaml:"run"`
+	Shell string `yaml:"shell"`
+}
+
+func (s Step) RenderCommand(c Context) string {
+	return fasttemplate.ExecuteFuncString(s.Run, "{{", "}}", func(w io.Writer, tag string) (int, error) {
+		switch tag {
+		case "torrent_name":
+			return fmt.Fprintf(w, "%q", c.TorrentName)
+		case "!torrent_name":
+			return io.WriteString(w, c.TorrentName)
+		case "category":
+			return fmt.Fprintf(w, "%q", c.Category)
+		case "!category":
+			return io.WriteString(w, c.Category)
+		case "tags":
+			return fmt.Fprintf(w, "%q", strings.Join(c.Tags, ","))
+		case "!tags":
+			return io.WriteString(w, strings.Join(c.Tags, ","))
+		default:
+			if strings.HasPrefix(tag, "tags[") {
+				var index int
+				if n, _ := fmt.Sscanf(tag, "tags[%d]", &index); n > 0 {
+					if len(c.Tags) > index {
+						return fmt.Fprintf(w, "%q", c.Tags[index])
+					}
+				}
+			}
+			if strings.HasPrefix(tag, "!tags[") {
+				var index int
+				if n, _ := fmt.Sscanf(tag, "!tags[%d]", &index); n > 0 {
+					if len(c.Tags) > index {
+						return io.WriteString(w, c.Tags[index])
+					}
+				}
+			}
+			return 0, nil
+		}
+	})
+}

lib/workflow/workflow.go

@@ -1,6 +1,10 @@
 package workflow
 
 type WorkflowInput interface {
+	// Workflows returns a slice of Workflows.
+	// It returns an error if any of the workflows are invalid.
+	//
+	// Implementor must clean up any resources (e.g. closing files) after transformation.
 	Workflows() ([]Workflow, error)
 }
 
@@ -12,8 +16,3 @@ type Workflow struct {
 }
 
 type Jobs map[string]Job
-
-type Step struct {
-	Name string `yaml:"name"`
-	Run  string `yaml:"run"`
-}