make Context static

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

src/buildx/builder.ts

@@ -17,26 +17,18 @@
 import * as exec from '@actions/exec';
 
 import {Buildx} from './buildx';
-import {Context} from '../context';
 
 import {BuilderInfo, NodeInfo} from '../types/builder';
 
 export interface BuilderOpts {
-  context: Context;
   buildx?: Buildx;
 }
 
 export class Builder {
-  private readonly context: Context;
   private readonly buildx: Buildx;
 
-  constructor(opts: BuilderOpts) {
-    this.context = opts.context;
-    this.buildx =
-      opts?.buildx ||
-      new Buildx({
-        context: this.context
-      });
+  constructor(opts?: BuilderOpts) {
+    this.buildx = opts?.buildx || new Buildx();
   }
 
   public async inspect(name: string): Promise<BuilderInfo> {

src/buildx/buildx.ts

@@ -21,13 +21,11 @@ import * as exec from '@actions/exec';
 import * as semver from 'semver';
 
 import {Docker} from '../docker';
-import {Context} from '../context';
 import {Inputs} from './inputs';
 
 import {Cert} from '../types/buildx';
 
 export interface BuildxOpts {
-  context: Context;
   standalone?: boolean;
 }
 
@@ -35,15 +33,13 @@ export class Buildx {
   private _version: string | undefined;
   private readonly _standalone: boolean | undefined;
 
-  private readonly context: Context;
   public readonly inputs: Inputs;
 
   public static readonly containerNamePrefix = 'buildx_buildkit_';
 
-  constructor(opts: BuildxOpts) {
+  constructor(opts?: BuildxOpts) {
     this._standalone = opts?.standalone;
-    this.context = opts.context;
-    this.inputs = new Inputs(this.context);
+    this.inputs = new Inputs();
   }
 
   static get configDir(): string {

src/buildx/inputs.ts

@@ -22,18 +22,12 @@ import {parse} from 'csv-parse/sync';
 import {Context} from '../context';
 
 export class Inputs {
-  private readonly context: Context;
-
-  constructor(context: Context) {
-    this.context = context;
-  }
-
   public getBuildImageIDFilePath(): string {
-    return path.join(this.context.tmpDir(), 'iidfile');
+    return path.join(Context.tmpDir(), 'iidfile');
   }
 
   public getBuildMetadataFilePath(): string {
-    return path.join(this.context.tmpDir(), 'metadata-file');
+    return path.join(Context.tmpDir(), 'metadata-file');
   }
 
   public resolveBuildImageID(): string | undefined {
@@ -89,7 +83,7 @@ export class Inputs {
       }
       value = fs.readFileSync(value, {encoding: 'utf-8'});
     }
-    const secretFile = this.context.tmpName({tmpdir: this.context.tmpDir()});
+    const secretFile = Context.tmpName({tmpdir: Context.tmpDir()});
     fs.writeFileSync(secretFile, value);
     return `id=${key},src=${secretFile}`;
   }
@@ -100,9 +94,8 @@ export class Inputs {
       // if input is not set returns empty string
       return input;
     }
-    const builderID = this.context.provenanceBuilderID;
     try {
-      return core.getBooleanInput(name) ? `builder-id=${builderID}` : 'false';
+      return core.getBooleanInput(name) ? `builder-id=${Context.provenanceBuilderID()}` : 'false';
     } catch (err) {
       // not a valid boolean, so we assume it's a string
       return this.resolveProvenanceAttrs(input);
@@ -111,7 +104,7 @@ export class Inputs {
 
   public resolveProvenanceAttrs(input: string): string {
     if (!input) {
-      return `builder-id=${this.context.provenanceBuilderID}`;
+      return `builder-id=${Context.provenanceBuilderID()}`;
     }
     // parse attributes from input
     const fields = parse(input, {
@@ -129,7 +122,7 @@ export class Inputs {
       }
     }
     // if not add builder-id attribute
-    return `${input},builder-id=${this.context.provenanceBuilderID}`;
+    return `${input},builder-id=${Context.provenanceBuilderID()}`;
   }
 
   public static hasLocalExporter(exporters: string[]): boolean {

src/buildx/install.ts

@@ -32,17 +32,13 @@ import {Git} from '../git';
 import {GitHubRelease} from '../types/github';
 
 export interface InstallOpts {
-  context?: Context;
   standalone?: boolean;
 }
 
 export class Install {
   private readonly _standalone: boolean | undefined;
 
-  private readonly context: Context;
-
   constructor(opts?: InstallOpts) {
-    this.context = opts?.context || new Context();
     this._standalone = opts?.standalone;
   }
 
@@ -84,7 +80,7 @@ export class Install {
     let toolPath: string;
     toolPath = tc.find('buildx', vspec);
     if (!toolPath) {
-      const outputDir = path.join(this.context.tmpDir(), 'build-cache');
+      const outputDir = path.join(Context.tmpDir(), 'build-cache');
       const buildCmd = await this.buildCommand(gitContext, outputDir);
       toolPath = await exec
         .getExecOutput(buildCmd.command, buildCmd.args, {
@@ -103,7 +99,7 @@ export class Install {
 
   public async installStandalone(toolPath: string, dest?: string): Promise<string> {
     core.info('Standalone mode');
-    dest = dest || this.context.tmpDir();
+    dest = dest || Context.tmpDir();
     const toolBinPath = path.join(toolPath, os.platform() == 'win32' ? 'docker-buildx.exe' : 'docker-buildx');
     const binDir = path.join(dest, 'bin');
     if (!fs.existsSync(binDir)) {
@@ -143,8 +139,8 @@ export class Install {
   }
 
   private async buildCommand(gitContext: string, outputDir: string): Promise<{args: Array<string>; command: string}> {
-    const buildxStandaloneFound = await new Buildx({context: this.context, standalone: true}).isAvailable();
-    const buildxPluginFound = await new Buildx({context: this.context, standalone: false}).isAvailable();
+    const buildxStandaloneFound = await new Buildx({standalone: true}).isAvailable();
+    const buildxPluginFound = await new Buildx({standalone: false}).isAvailable();
 
     let buildStandalone = false;
     if ((await this.isStandalone()) && buildxStandaloneFound) {
@@ -164,7 +160,7 @@ export class Install {
     }
 
     //prettier-ignore
-    return await new Buildx({context: this.context, standalone: buildStandalone}).getCommand([
+    return await new Buildx({standalone: buildStandalone}).getCommand([
       'build',
       '--target', 'binaries',
       '--build-arg', 'BUILDKIT_CONTEXT_KEEP_GIT_DIR=1',