split template helper into templatehelper and version printer

app-backend/built/user/TemplateHelper.js

@@ -1,95 +1,29 @@
 "use strict";
-const request = require("request");
 const fs = require("fs-extra");
 const ApiStatusCodes = require("../api/ApiStatusCodes");
-const Logger = require("../utils/Logger");
 const CaptainConstants = require("../utils/CaptainConstants");
-function getTagsForImage(imageBaseName, url, allTags) {
-    if (!url) {
-        url =
-            'https://hub.docker.com/v2/repositories/' + imageBaseName + '/tags';
-    }
-    return new Promise(function (resolve, reject) {
-        request(url, function (error, response, body) {
-            if (error || !body) {
-                Logger.e(error);
-                reject(error);
-                return;
-            }
-            try {
-                // Sometimes Docker server is down and it crashes Captain!
-                body = JSON.parse(body);
-            }
-            catch (e) {
-                Logger.e(e);
-            }
-            let results;
-            if (body) {
-                results = body.results;
-            }
-            if (!results) {
-                Logger.e('NO RESULT');
-                reject(new Error('NO RESULT'));
-                return;
-            }
-            if (!allTags) {
-                allTags = [];
-            }
-            for (let idx = 0; idx < results.length; idx++) {
-                allTags.push(results[idx].name);
-            }
-            if (body.next) {
-                resolve(getTagsForImage(imageBaseName, body.next, allTags));
-                return;
-            }
-            resolve(allTags);
-        });
-    });
-}
-function firstEndsWithSecond(str1, str2) {
-    if (!str1 || !str2) {
-        throw new Error('Str1 or Str2 are null ' + !str1 + ' ' + !str2);
-    }
-    const idx = str1.indexOf(str2);
-    return idx >= 0 && idx + str2.length === str1.length;
-}
-function isEmpty(obj) {
-    for (const key in obj) {
-        if (obj.hasOwnProperty(key)) {
-            return false;
-        }
-    }
-    return true;
-}
+const TemplateHelperVersionPrinter = require("./TemplateHelperVersionPrinter");
 class TemplateHelper {
     constructor() {
         const templates = [
             {
                 templateName: 'node',
                 dockerHubImageName: 'library/node',
-                dockerFileFromName: 'node',
-                displayName: 'NodeJS',
                 tagSuffix: '-alpine',
             },
             {
                 templateName: 'php',
                 dockerHubImageName: 'library/php',
-                dockerFileFromName: 'php',
-                displayName: 'PHP',
                 tagSuffix: '-apache',
             },
             {
                 templateName: 'python-django',
                 dockerHubImageName: 'library/python',
-                dockerFileFromName: 'python-django',
-                displayName: 'Python Django',
                 tagSuffix: '-alpine3.6',
             },
             {
                 templateName: 'ruby-rack',
                 dockerHubImageName: 'library/ruby',
-                dockerFileFromName: 'ruby-rack',
-                displayName: 'Ruby Rack',
                 tagSuffix: '-alpine3.7',
             },
         ];
@@ -98,60 +32,8 @@ class TemplateHelper {
             templates[i].postFromLines = fs.readFileSync(dockerfilesRoot + templates[i].templateName, 'utf8');
         }
         this.templates = templates;
-        this.cachedImageTags = {};
         if (CaptainConstants.isDebug) {
-            this.printAvailableImageTagsForReadme();
-        }
-    }
-    getDockerVersionsForTemplateName(templateName) {
-        const self = this;
-        const templateObj = self.getTemplateFromTemplateName(templateName);
-        if (isEmpty(this.cachedImageTags)) {
-            throw ApiStatusCodes.createError(ApiStatusCodes.STATUS_ERROR_GENERIC, 'Please wait about 30 seconds, then try again.');
-        }
-        const tags = self.cachedImageTags[templateObj.dockerHubImageName];
-        const dockerVersions = [];
-        for (let i = 0; i < tags.length; i++) {
-            const t = tags[i];
-            if (firstEndsWithSecond(t, templateObj.tagSuffix)) {
-                dockerVersions.push(t.substring(0, t.length - templateObj.tagSuffix.length));
-            }
-        }
-        return dockerVersions;
-    }
-    printAvailableImageTagsForReadme() {
-        const self = this;
-        self.cachedImageTags = {};
-        const tempCache = {};
-        for (let i = 0; i < self.templates.length; i++) {
-            const currentImageName = self.templates[i].dockerHubImageName;
-            getTagsForImage(currentImageName, undefined, undefined)
-                .then(function (tags) {
-                tempCache[currentImageName] = tags;
-                let isAllDone = true;
-                for (let j = 0; j < self.templates.length; j++) {
-                    const imageName = self.templates[j].dockerHubImageName;
-                    if (!tempCache[imageName]) {
-                        isAllDone = false;
-                    }
-                }
-                if (isAllDone) {
-                    Logger.d('Template Cache Updated!');
-                    self.cachedImageTags = tempCache;
-                    // Used for README
-                    for (let tempIdx = 0; tempIdx < self.templates.length; tempIdx++) {
-                        Logger.d(' ');
-                        Logger.d(self.templates[tempIdx].templateName + '/');
-                        Logger.d(self
-                            .getDockerVersionsForTemplateName(self.templates[tempIdx].templateName)
-                            .join(', '));
-                        Logger.d(' ');
-                    }
-                }
-            })
-                .catch(function (error) {
-                Logger.e(error);
-            });
+            new TemplateHelperVersionPrinter().printAvailableImageTagsForReadme(this.templates);
         }
     }
     getTemplateFromTemplateName(templateName) {

app-backend/built/user/TemplateHelperVersionPrinter.js

@@ -0,0 +1,118 @@
+"use strict";
+const request = require("request");
+const ApiStatusCodes = require("../api/ApiStatusCodes");
+const Logger = require("../utils/Logger");
+function getTagsForImage(imageBaseName, url, allTags) {
+    if (!url) {
+        url =
+            'https://hub.docker.com/v2/repositories/' + imageBaseName + '/tags';
+    }
+    return new Promise(function (resolve, reject) {
+        request(url, function (error, response, body) {
+            if (error || !body) {
+                Logger.e(error);
+                reject(error);
+                return;
+            }
+            try {
+                // Sometimes Docker server is down and it crashes Captain!
+                body = JSON.parse(body);
+            }
+            catch (e) {
+                Logger.e(e);
+            }
+            let results;
+            if (body) {
+                results = body.results;
+            }
+            if (!results) {
+                Logger.e('NO RESULT');
+                reject(new Error('NO RESULT'));
+                return;
+            }
+            if (!allTags) {
+                allTags = [];
+            }
+            for (let idx = 0; idx < results.length; idx++) {
+                allTags.push(results[idx].name);
+            }
+            if (body.next) {
+                resolve(getTagsForImage(imageBaseName, body.next, allTags));
+                return;
+            }
+            resolve(allTags);
+        });
+    });
+}
+function firstEndsWithSecond(str1, str2) {
+    if (!str1 || !str2) {
+        throw new Error('Str1 or Str2 are null ' + !str1 + ' ' + !str2);
+    }
+    const idx = str1.indexOf(str2);
+    return idx >= 0 && idx + str2.length === str1.length;
+}
+function isEmpty(obj) {
+    for (const key in obj) {
+        if (obj.hasOwnProperty(key)) {
+            return false;
+        }
+    }
+    return true;
+}
+class TemplateHelperVersionPrinter {
+    constructor() {
+        this.cachedImageTags = {};
+    }
+    getDockerVersionsForTemplateName(templateObj) {
+        const self = this;
+        if (isEmpty(this.cachedImageTags)) {
+            throw ApiStatusCodes.createError(ApiStatusCodes.STATUS_ERROR_GENERIC, 'Please wait about 30 seconds, then try again.');
+        }
+        const tags = self.cachedImageTags[templateObj.dockerHubImageName];
+        const dockerVersions = [];
+        for (let i = 0; i < tags.length; i++) {
+            const t = tags[i];
+            if (firstEndsWithSecond(t, templateObj.tagSuffix)) {
+                dockerVersions.push(t.substring(0, t.length - templateObj.tagSuffix.length));
+            }
+        }
+        return dockerVersions;
+    }
+    printAvailableImageTagsForReadme(templates) {
+        const self = this;
+        self.cachedImageTags = {};
+        const tempCache = {};
+        for (let i = 0; i < templates.length; i++) {
+            const currentImageName = templates[i].dockerHubImageName;
+            getTagsForImage(currentImageName, undefined, undefined)
+                .then(function (tags) {
+                tempCache[currentImageName] = tags;
+                let isAllDone = true;
+                for (let j = 0; j < templates.length; j++) {
+                    const imageName = templates[j].dockerHubImageName;
+                    if (!tempCache[imageName]) {
+                        isAllDone = false;
+                    }
+                }
+                if (isAllDone) {
+                    Logger.d('Template Cache Updated!');
+                    self.cachedImageTags = tempCache;
+                    // Used for README
+                    for (let tempIdx = 0; tempIdx < templates.length; tempIdx++) {
+                        Logger.d(' ');
+                        Logger.d(templates[tempIdx].templateName + '/');
+                        Logger.d(self
+                            .getDockerVersionsForTemplateName(templates[tempIdx])
+                            .join(', '));
+                        Logger.d(' ');
+                    }
+                }
+            })
+                .catch(function (error) {
+                Logger.e(error);
+            });
+        }
+    }
+}
+module.exports = TemplateHelperVersionPrinter;
+//# sourceMappingURL=TemplateHelperVersionPrinter.js.map

app-backend/built/user/TemplateHelperVersionPrinter.js.map

@@ -0,0 +1 @@
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app-backend/src/models/OtherTypes.ts

@@ -16,3 +16,10 @@ export interface IDockerContainerResource {
     Limits?: { NanoCPUs?: number; MemoryBytes?: number }
     Reservation?: { NanoCPUs?: number; MemoryBytes?: number }
 }
+
+export interface ITemplate {
+    templateName: string
+    dockerHubImageName: string
+    tagSuffix: string
+    postFromLines?: string
+}

app-backend/src/user/TemplateHelper.ts

@@ -3,126 +3,32 @@ import fs = require('fs-extra')
 import ApiStatusCodes = require('../api/ApiStatusCodes')
 import Logger = require('../utils/Logger')
 import CaptainConstants = require('../utils/CaptainConstants')
-
-function getTagsForImage(
-    imageBaseName: string,
-    url: string | undefined,
-    allTags: string[] | undefined
-): Promise<string[]> {
-    if (!url) {
-        url =
-            'https://hub.docker.com/v2/repositories/' + imageBaseName + '/tags'
-    }
-
-    return new Promise<string[]>(function(resolve, reject) {
-        request(
-            url!,
-
-            function(error, response, body) {
-                if (error || !body) {
-                    Logger.e(error)
-                    reject(error)
-                    return
-                }
-
-                try {
-                    // Sometimes Docker server is down and it crashes Captain!
-                    body = JSON.parse(body)
-                } catch (e) {
-                    Logger.e(e)
-                }
-
-                let results: any
-
-                if (body) {
-                    results = body.results
-                }
-
-                if (!results) {
-                    Logger.e('NO RESULT')
-                    reject(new Error('NO RESULT'))
-                    return
-                }
-
-                if (!allTags) {
-                    allTags = []
-                }
-
-                for (let idx = 0; idx < results.length; idx++) {
-                    allTags.push(results[idx].name)
-                }
-
-                if (body.next) {
-                    resolve(getTagsForImage(imageBaseName, body.next, allTags))
-                    return
-                }
-
-                resolve(allTags)
-            }
-        )
-    })
-}
-
-function firstEndsWithSecond(str1: string, str2: string) {
-    if (!str1 || !str2) {
-        throw new Error('Str1 or Str2 are null ' + !str1 + ' ' + !str2)
-    }
-    const idx = str1.indexOf(str2)
-    return idx >= 0 && idx + str2.length === str1.length
-}
-
-function isEmpty(obj: any) {
-    for (const key in obj) {
-        if (obj.hasOwnProperty(key)) {
-            return false
-        }
-    }
-    return true
-}
-
-interface ITemplate {
-    templateName: string
-    dockerHubImageName: string
-    dockerFileFromName: string
-    displayName: string
-    tagSuffix: string
-    postFromLines?: string
-}
-
-type AnyHashMap = IHashMapGeneric<any>
+import { ITemplate } from '../models/OtherTypes'
+import TemplateHelperVersionPrinter = require('./TemplateHelperVersionPrinter')
 
 class TemplateHelper {
     private templates: ITemplate[]
-    private cachedImageTags: AnyHashMap
 
     constructor() {
         const templates: ITemplate[] = [
             {
                 templateName: 'node',
                 dockerHubImageName: 'library/node',
-                dockerFileFromName: 'node',
-                displayName: 'NodeJS',
                 tagSuffix: '-alpine',
             },
             {
                 templateName: 'php',
                 dockerHubImageName: 'library/php',
-                dockerFileFromName: 'php',
-                displayName: 'PHP',
                 tagSuffix: '-apache',
             },
             {
                 templateName: 'python-django',
                 dockerHubImageName: 'library/python',
-                dockerFileFromName: 'python-django',
-                displayName: 'Python Django',
                 tagSuffix: '-alpine3.6',
             },
             {
                 templateName: 'ruby-rack',
                 dockerHubImageName: 'library/ruby',
-                dockerFileFromName: 'ruby-rack',
-                displayName: 'Ruby Rack',
                 tagSuffix: '-alpine3.7',
             },
         ]
@@ -137,89 +43,12 @@ class TemplateHelper {
         }
 
         this.templates = templates
-        this.cachedImageTags = {}
 
         if (CaptainConstants.isDebug) {
-            this.printAvailableImageTagsForReadme()
-        }
-    }
-
-    getDockerVersionsForTemplateName(templateName: string) {
-        const self = this
-
-        const templateObj = self.getTemplateFromTemplateName(templateName)
-
-        if (isEmpty(this.cachedImageTags)) {
-            throw ApiStatusCodes.createError(
-                ApiStatusCodes.STATUS_ERROR_GENERIC,
-                'Please wait about 30 seconds, then try again.'
+            new TemplateHelperVersionPrinter().printAvailableImageTagsForReadme(
+                this.templates
             )
         }
-
-        const tags = self.cachedImageTags[templateObj.dockerHubImageName]
-
-        const dockerVersions = []
-        for (let i = 0; i < tags.length; i++) {
-            const t = tags[i]
-            if (firstEndsWithSecond(t, templateObj.tagSuffix)) {
-                dockerVersions.push(
-                    t.substring(0, t.length - templateObj.tagSuffix.length)
-                )
-            }
-        }
-
-        return dockerVersions
-    }
-
-    printAvailableImageTagsForReadme() {
-        const self = this
-        self.cachedImageTags = {}
-
-        const tempCache: AnyHashMap = {}
-        for (let i = 0; i < self.templates.length; i++) {
-            const currentImageName = self.templates[i].dockerHubImageName
-
-            getTagsForImage(currentImageName, undefined, undefined)
-                .then(function(tags) {
-                    tempCache[currentImageName] = tags
-
-                    let isAllDone = true
-
-                    for (let j = 0; j < self.templates.length; j++) {
-                        const imageName = self.templates[j].dockerHubImageName
-                        if (!tempCache[imageName]) {
-                            isAllDone = false
-                        }
-                    }
-
-                    if (isAllDone) {
-                        Logger.d('Template Cache Updated!')
-
-                        self.cachedImageTags = tempCache
-
-                        // Used for README
-                        for (
-                            let tempIdx = 0;
-                            tempIdx < self.templates.length;
-                            tempIdx++
-                        ) {
-                            Logger.d(' ')
-                            Logger.d(self.templates[tempIdx].templateName + '/')
-                            Logger.d(
-                                self
-                                    .getDockerVersionsForTemplateName(
-                                        self.templates[tempIdx].templateName
-                                    )
-                                    .join(', ')
-                            )
-                            Logger.d(' ')
-                        }
-                    }
-                })
-                .catch(function(error) {
-                    Logger.e(error)
-                })
-        }
     }
 
     getTemplateFromTemplateName(templateName: string) {

app-backend/src/user/TemplateHelperVersionPrinter.ts

@@ -0,0 +1,170 @@
+import request = require('request')
+import fs = require('fs-extra')
+import ApiStatusCodes = require('../api/ApiStatusCodes')
+import Logger = require('../utils/Logger')
+import CaptainConstants = require('../utils/CaptainConstants')
+import { ITemplate } from '../models/OtherTypes'
+
+function getTagsForImage(
+    imageBaseName: string,
+    url: string | undefined,
+    allTags: string[] | undefined
+): Promise<string[]> {
+    if (!url) {
+        url =
+            'https://hub.docker.com/v2/repositories/' + imageBaseName + '/tags'
+    }
+
+    return new Promise<string[]>(function(resolve, reject) {
+        request(
+            url!,
+
+            function(error, response, body) {
+                if (error || !body) {
+                    Logger.e(error)
+                    reject(error)
+                    return
+                }
+
+                try {
+                    // Sometimes Docker server is down and it crashes Captain!
+                    body = JSON.parse(body)
+                } catch (e) {
+                    Logger.e(e)
+                }
+
+                let results: any
+
+                if (body) {
+                    results = body.results
+                }
+
+                if (!results) {
+                    Logger.e('NO RESULT')
+                    reject(new Error('NO RESULT'))
+                    return
+                }
+
+                if (!allTags) {
+                    allTags = []
+                }
+
+                for (let idx = 0; idx < results.length; idx++) {
+                    allTags.push(results[idx].name)
+                }
+
+                if (body.next) {
+                    resolve(getTagsForImage(imageBaseName, body.next, allTags))
+                    return
+                }
+
+                resolve(allTags)
+            }
+        )
+    })
+}
+
+function firstEndsWithSecond(str1: string, str2: string) {
+    if (!str1 || !str2) {
+        throw new Error('Str1 or Str2 are null ' + !str1 + ' ' + !str2)
+    }
+    const idx = str1.indexOf(str2)
+    return idx >= 0 && idx + str2.length === str1.length
+}
+
+function isEmpty(obj: any) {
+    for (const key in obj) {
+        if (obj.hasOwnProperty(key)) {
+            return false
+        }
+    }
+    return true
+}
+
+type AnyHashMap = IHashMapGeneric<any>
+
+class TemplateHelperVersionPrinter {
+    private cachedImageTags: AnyHashMap
+
+    constructor() {
+        this.cachedImageTags = {}
+    }
+
+    getDockerVersionsForTemplateName(templateObj: ITemplate) {
+        const self = this
+
+        if (isEmpty(this.cachedImageTags)) {
+            throw ApiStatusCodes.createError(
+                ApiStatusCodes.STATUS_ERROR_GENERIC,
+                'Please wait about 30 seconds, then try again.'
+            )
+        }
+
+        const tags = self.cachedImageTags[templateObj.dockerHubImageName]
+
+        const dockerVersions = []
+        for (let i = 0; i < tags.length; i++) {
+            const t = tags[i]
+            if (firstEndsWithSecond(t, templateObj.tagSuffix)) {
+                dockerVersions.push(
+                    t.substring(0, t.length - templateObj.tagSuffix.length)
+                )
+            }
+        }
+
+        return dockerVersions
+    }
+
+    printAvailableImageTagsForReadme(templates: ITemplate[]) {
+        const self = this
+        self.cachedImageTags = {}
+
+        const tempCache: AnyHashMap = {}
+        for (let i = 0; i < templates.length; i++) {
+            const currentImageName = templates[i].dockerHubImageName
+
+            getTagsForImage(currentImageName, undefined, undefined)
+                .then(function(tags) {
+                    tempCache[currentImageName] = tags
+
+                    let isAllDone = true
+
+                    for (let j = 0; j < templates.length; j++) {
+                        const imageName = templates[j].dockerHubImageName
+                        if (!tempCache[imageName]) {
+                            isAllDone = false
+                        }
+                    }
+
+                    if (isAllDone) {
+                        Logger.d('Template Cache Updated!')
+
+                        self.cachedImageTags = tempCache
+
+                        // Used for README
+                        for (
+                            let tempIdx = 0;
+                            tempIdx < templates.length;
+                            tempIdx++
+                        ) {
+                            Logger.d(' ')
+                            Logger.d(templates[tempIdx].templateName + '/')
+                            Logger.d(
+                                self
+                                    .getDockerVersionsForTemplateName(
+                                        templates[tempIdx]
+                                    )
+                                    .join(', ')
+                            )
+                            Logger.d(' ')
+                        }
+                    }
+                })
+                .catch(function(error) {
+                    Logger.e(error)
+                })
+        }
+    }
+}
+
+export = TemplateHelperVersionPrinter