adding support for dockerfile components

docs/public/alizer-spec.md

@@ -156,6 +156,7 @@ Component detection is only enabled for a subset of programming languages
 - Python
 - Rust
 - PHP
+- Dockerfile
 
 To perform component detection Alizer splits the languages in two sets: `languages with a configuration file` (like Java
 which can have a pom.xml or a build.gradle) and `languages without a configuration file` (such as Python which does not have a

pkg/apis/enricher/docker_enricher.go

@@ -0,0 +1,52 @@
+//
+// Copyright 2023 Red Hat, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package enricher
+
+import (
+	"context"
+	"github.com/devfile/alizer/pkg/apis/model"
+)
+
+type DockerEnricher struct{}
+
+type DockerFrameworkDetector interface {
+	DoPortsDetection(component *model.Component, ctx *context.Context)
+}
+
+func (d DockerEnricher) GetSupportedLanguages() []string {
+	return []string{"dockerfile"}
+}
+
+func (d DockerEnricher) DoEnrichLanguage(language *model.Language, _ *[]string) {
+	// The Dockerfile language does not contain frameworks
+	return
+}
+
+func (d DockerEnricher) DoEnrichComponent(component *model.Component, _ model.DetectionSettings, _ *context.Context) {
+	projectName := GetDefaultProjectName(component.Path)
+	component.Name = projectName
+
+	var ports []int
+	ports = GetPortsFromDockerFile(component.Path)
+	if len(ports) > 0 {
+		component.Ports = ports
+	}
+	return
+}
+
+func (d DockerEnricher) IsConfigValidForComponentDetection(language string, config string) bool {
+	return IsConfigurationValidForLanguage(language, config)
+}

pkg/apis/enricher/enricher.go

@@ -93,6 +93,7 @@ func getEnrichers() []Enricher {
 		&DotNetEnricher{},
 		&GoEnricher{},
 		&PHPEnricher{},
+		&DockerEnricher{},
 	}
 }
 

pkg/apis/model/model.go

@@ -27,12 +27,13 @@ type DetectionSettings struct {
 }
 
 type Language struct {
-	Name           string
-	Aliases        []string
-	Weight         float64
-	Frameworks     []string
-	Tools          []string
-	CanBeComponent bool
+	Name                    string
+	Aliases                 []string
+	Weight                  float64
+	Frameworks              []string
+	Tools                   []string
+	CanBeComponent          bool
+	CanBeContainerComponent bool
 }
 
 type Component struct {

pkg/apis/recognizer/component_recognizer.go

@@ -182,6 +182,17 @@ func isAnyComponentInPath(path string, components []model.Component) bool {
 	return false
 }
 
+// isAnyComponentInDirectPath checks if a component is present in the exact path.
+// Search starts from path and will return true if a component is found.
+func isAnyComponentInDirectPath(path string, components []model.Component) bool {
+	for _, component := range components {
+		if strings.Contains(path, component.Path) {
+			return true
+		}
+	}
+	return false
+}
+
 // isFirstPathParentOfSecond check if first path is parent (direct or not) of second path.
 func isFirstPathParentOfSecond(firstPath string, secondPath string) bool {
 	return strings.Contains(secondPath, firstPath)
@@ -194,6 +205,7 @@ func DetectComponentsFromFilesList(files []string, settings model.DetectionSetti
 	alizerLogger.V(0).Info(fmt.Sprintf("Detecting components for %d fetched file paths", len(files)))
 	configurationPerLanguage := langfiles.Get().GetConfigurationPerLanguageMapping()
 	var components []model.Component
+	var containerComponents []model.Component
 	for _, file := range files {
 		alizerLogger.V(1).Info(fmt.Sprintf("Accessing %s", file))
 		languages, err := getLanguagesByConfigurationFile(configurationPerLanguage, file)
@@ -210,8 +222,20 @@ func DetectComponentsFromFilesList(files []string, settings model.DetectionSetti
 			alizerLogger.V(1).Info(err.Error())
 			continue
 		}
-		alizerLogger.V(0).Info(fmt.Sprintf("Component %s found", component.Name))
-		components = appendIfMissing(components, component)
+		if component.Languages[0].CanBeComponent {
+			alizerLogger.V(0).Info(fmt.Sprintf("Component %s found", component.Name))
+			components = appendIfMissing(components, component)
+		}
+		if component.Languages[0].CanBeContainerComponent {
+			alizerLogger.V(0).Info(fmt.Sprintf("Container component %s found", component.Name))
+			containerComponents = appendIfMissing(containerComponents, component)
+		}
+	}
+
+	for _, component := range containerComponents {
+		if !isAnyComponentInDirectPath(component.Path, components) {
+			components = appendIfMissing(components, component)
+		}
 	}
 	return components
 }
@@ -226,8 +250,9 @@ func appendIfMissing(components []model.Component, component model.Component) []
 }
 
 func getLanguagesByConfigurationFile(configurationPerLanguage map[string][]string, file string) ([]string, error) {
+	filename := filepath.Base(file)
 	for regex, languages := range configurationPerLanguage {
-		if match, _ := regexp.MatchString(regex, file); match {
+		if match, _ := regexp.MatchString(regex, filename); match {
 			return languages, nil
 		}
 	}

pkg/apis/recognizer/component_recognizer_test.go

@@ -0,0 +1,59 @@
+package recognizer
+
+import (
+	"github.com/devfile/alizer/pkg/apis/model"
+	"reflect"
+	"testing"
+)
+
+func Test_isAnyComponentInDirectPath(t *testing.T) {
+	tests := []struct {
+		name       string
+		path       string
+		components []model.Component
+		want       bool
+	}{
+		{
+			name: "Case 1: path should match",
+			path: "/alizer/resources/projects/ocparcade/arkanoid/",
+			components: []model.Component{{
+				Name:      "",
+				Path:      "/alizer/resources/projects/ocparcade/arkanoid/",
+				Languages: nil,
+				Ports:     nil,
+			}},
+			want: true,
+		},
+		{
+			name: "Case 2: path should match",
+			path: "/alizer/resources/projects/ocparcade/arkanoid/arkanoid/",
+			components: []model.Component{{
+				Name:      "",
+				Path:      "/alizer/resources/projects/ocparcade/arkanoid/arkanoid/",
+				Languages: nil,
+				Ports:     nil,
+			}},
+			want: true,
+		},
+		{
+			name: "Case 3: path should not match",
+			path: "/alizer/resources/projects/ocparcade/arkanoid/",
+			components: []model.Component{{
+				Name:      "",
+				Path:      "/alizer/resources/projects/ocparcade/arkanoid/arkanoid/",
+				Languages: nil,
+				Ports:     nil,
+			}},
+			want: false,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := isAnyComponentInDirectPath(tt.path, tt.components)
+			if !reflect.DeepEqual(result, tt.want) {
+				t.Errorf("Got: %t, want: %t", result, tt.want)
+			}
+		})
+	}
+}

pkg/apis/recognizer/language_recognizer.go

@@ -127,12 +127,14 @@ func AnalyzeFile(configFile string, targetLanguage string) (model.Language, erro
 		return model.Language{}, err
 	}
 	tmpLanguage := model.Language{
-		Name:           lang.Name,
-		Aliases:        lang.Aliases,
-		Frameworks:     []string{},
-		Tools:          []string{},
-		Weight:         100,
-		CanBeComponent: true}
+		Name:                    lang.Name,
+		Aliases:                 lang.Aliases,
+		Frameworks:              []string{},
+		Tools:                   []string{},
+		Weight:                  100,
+		CanBeComponent:          lang.Component,
+		CanBeContainerComponent: lang.ContainerComponent,
+	}
 	langEnricher := enricher.GetEnricherByLanguage(targetLanguage)
 	if langEnricher != nil {
 		langEnricher.DoEnrichLanguage(&tmpLanguage, &[]string{configFile})

pkg/schema/languages.go

@@ -29,6 +29,7 @@ type LanguagesProperties map[string]LanguageProperties
 type LanguageCustomization struct {
 	ConfigurationFiles []string `yaml:"configuration_files"`
 	Component          bool     `yaml:"component"`
+	ContainerComponent bool     `yaml:"container_component"`
 	ExcludeFolders     []string `yaml:"exclude_folders,omitempty"`
 	Aliases            []string `yaml:"aliases"`
 	Disabled           bool     `default:"false" yaml:"disable_detection"`

pkg/utils/langfiles/languages_file_handler.go

@@ -28,6 +28,7 @@ type LanguageItem struct {
 	ConfigurationFiles []string
 	ExcludeFolders     []string
 	Component          bool
+	ContainerComponent bool
 	disabled           bool
 }
 
@@ -87,6 +88,7 @@ func customizeLanguage(languageItem *LanguageItem) {
 		(*languageItem).ConfigurationFiles = customization.ConfigurationFiles
 		(*languageItem).ExcludeFolders = customization.ExcludeFolders
 		(*languageItem).Component = customization.Component
+		(*languageItem).ContainerComponent = customization.ContainerComponent
 		(*languageItem).Aliases = appendSlice((*languageItem).Aliases, customization.Aliases)
 		(*languageItem).disabled = customization.Disabled
 	}

pkg/utils/langfiles/languages_file_handler_test.go

@@ -118,7 +118,7 @@ func TestGetLanguageByName(t *testing.T) {
 		},
 		{
 			name:         "JavaScript",
-			expectedItem: LanguageItem{Name: "JavaScript", Aliases: []string{"js", "node", "nodejs", "TypeScript"}, Kind: "programming", Group: "", ConfigurationFiles: []string{"[^-]package.json"}, ExcludeFolders: []string{"node_modules"}, Component: true, disabled: false},
+			expectedItem: LanguageItem{Name: "JavaScript", Aliases: []string{"js", "node", "nodejs", "TypeScript"}, Kind: "programming", Group: "", ConfigurationFiles: []string{"package.json"}, ExcludeFolders: []string{"node_modules"}, Component: true, disabled: false},
 			expectedErr:  nil,
 		},
 		{
@@ -133,7 +133,12 @@ func TestGetLanguageByName(t *testing.T) {
 		},
 		{
 			name:         "PHP",
-			expectedItem: LanguageItem{Name: "PHP", Aliases: []string{"inc"}, Kind: "programming", Group: "", ConfigurationFiles: []string{"composer.json", "[^-]package.json"}, ExcludeFolders: []string(nil), Component: true, disabled: false},
+			expectedItem: LanguageItem{Name: "PHP", Aliases: []string{"inc"}, Kind: "programming", Group: "", ConfigurationFiles: []string{"composer.json", "package.json"}, ExcludeFolders: []string(nil), Component: true, disabled: false},
+			expectedErr:  nil,
+		},
+		{
+			name:         "Dockerfile",
+			expectedItem: LanguageItem{Name: "Dockerfile", Aliases: []string{"Containerfile"}, Kind: "programming", Group: "", ConfigurationFiles: []string{"[Dd]ockerfile(\\.\\w+)?$", "[Cc]ontainerfile(\\.\\w+)?$"}, ExcludeFolders: []string(nil), Component: false, ContainerComponent: true, disabled: false},
 			expectedErr:  nil,
 		},
 	}
@@ -194,7 +199,7 @@ func TestGetLanguageByAlias(t *testing.T) {
 		{
 			name:         "JavaScript",
 			alias:        "TypeScript",
-			expectedItem: LanguageItem{Name: "JavaScript", Aliases: []string{"js", "node", "nodejs", "TypeScript"}, Kind: "programming", Group: "", ConfigurationFiles: []string{"[^-]package.json"}, ExcludeFolders: []string{"node_modules"}, Component: true, disabled: false},
+			expectedItem: LanguageItem{Name: "JavaScript", Aliases: []string{"js", "node", "nodejs", "TypeScript"}, Kind: "programming", Group: "", ConfigurationFiles: []string{"package.json"}, ExcludeFolders: []string{"node_modules"}, Component: true, disabled: false},
 			expectedErr:  nil,
 		},
 		{
@@ -206,7 +211,13 @@ func TestGetLanguageByAlias(t *testing.T) {
 		{
 			name:         "PHP",
 			alias:        "inc",
-			expectedItem: LanguageItem{Name: "PHP", Aliases: []string{"inc"}, Kind: "programming", Group: "", ConfigurationFiles: []string{"composer.json", "[^-]package.json"}, ExcludeFolders: []string(nil), Component: true, disabled: false},
+			expectedItem: LanguageItem{Name: "PHP", Aliases: []string{"inc"}, Kind: "programming", Group: "", ConfigurationFiles: []string{"composer.json", "package.json"}, ExcludeFolders: []string(nil), Component: true, disabled: false},
+			expectedErr:  nil,
+		},
+		{
+			name:         "Dockerfile",
+			alias:        "Containerfile",
+			expectedItem: LanguageItem{Name: "Dockerfile", Aliases: []string{"Containerfile"}, Kind: "programming", Group: "", ConfigurationFiles: []string{"[Dd]ockerfile(\\.\\w+)?$", "[Cc]ontainerfile(\\.\\w+)?$"}, ExcludeFolders: []string(nil), Component: false, ContainerComponent: true, disabled: false},
 			expectedErr:  nil,
 		},
 	}

pkg/utils/langfiles/resources/languages-customization.yml

@@ -6,6 +6,13 @@ C#:
     - ".*\\.\\w+proj"
     - "appsettings.json"
   component: true
+Dockerfile:
+  aliases:
+    - "Containerfile"
+  configuration_files:
+    - "[Dd]ockerfile(\\.\\w+)?$"
+    - "[Cc]ontainerfile(\\.\\w+)?$"
+  container_component: true
 F#:
   aliases:
     - "dotnet"
@@ -33,12 +40,12 @@ JavaScript:
   exclude_folders:
     - "node_modules"
   configuration_files:
-    - "[^-]package.json"
+    - "package.json"
   component: true
 PHP:
   configuration_files:
     - "composer.json"
-    - "[^-]package.json"
+    - "package.json"
   component: true
 Python:
   configuration_files:
@@ -55,7 +62,7 @@ TypeScript:
   exclude_folders:
     - "node_modules"
   configuration_files:
-    - "[^-]package.json"
+    - "package.json"
   component: true
 Visual Basic .NET:
   aliases:

resources/projects/containerfile-orphan/Containerfile

@@ -0,0 +1,16 @@
+FROM node:16
+
+# Create app directory
+WORKDIR /usr/src/app
+
+# Install app dependencies
+# A wildcard is used to ensure both package.json AND package-lock.json are copied
+COPY package*.json ./
+
+RUN npm install
+
+# Bundle app source
+COPY . .
+
+EXPOSE 8090
+CMD [ "node", "server.js" ]

resources/projects/dockerfile-double-components/Dockerfile

@@ -0,0 +1,16 @@
+FROM node:16
+
+# Create app directory
+WORKDIR /usr/src/app
+
+# Install app dependencies
+# A wildcard is used to ensure both package.json AND package-lock.json are copied
+COPY package*.json ./
+
+RUN npm install
+
+# Bundle app source
+COPY .. .
+
+EXPOSE 8085
+CMD [ "node", "server.js" ]

resources/projects/dockerfile-double-components/python/manage.py

@@ -0,0 +1,12 @@
+#!/usr/bin/env python
+import os
+import sys
+
+if __name__ == "__main__":
+    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "project.settings")
+
+    from django.core.management import execute_from_command_line
+
+    execute_from_command_line(sys.argv)
+    from django.core.management.commands.runserver import Command as runserver
+    runserver.default_port = "3543"