custom shells (fixes #50)

terminus-terminal/src/components/terminalSettingsTab.component.pug

@@ -238,6 +238,14 @@
                     [ngValue]='shell.id'
                 ) {{shell.name}}
 
+        .form-group(*ngIf='config.store.terminal.shell == "custom"')
+            label Custom shell
+            input.form-control(
+                type='text',
+                '[(ngModel)]'='config.store.terminal.customShell',
+                (ngModelChange)='config.save()',
+            )
+
         .form-group
             label Terminal bell
             br

terminus-terminal/src/config.ts

@@ -10,6 +10,7 @@ export class TerminalConfigProvider extends ConfigProvider {
             background: 'theme',
             ligatures: false,
             cursor: 'block',
+            customShell: '',
             colorScheme: {
                 __nonStructural: true,
                 name: 'Material',

terminus-terminal/src/index.ts

@@ -24,6 +24,7 @@ import { TerminalConfigProvider } from './config'
 import { TerminalHotkeyProvider } from './hotkeys'
 import { HyperColorSchemes } from './colorSchemes'
 
+import { CustomShellProvider } from './shells/custom'
 import { Cygwin32ShellProvider } from './shells/cygwin32'
 import { Cygwin64ShellProvider } from './shells/cygwin64'
 import { GitBashShellProvider } from './shells/gitBash'
@@ -59,6 +60,7 @@ import { hterm } from './hterm'
         { provide: ShellProvider, useClass: WindowsStockShellsProvider, multi: true },
         { provide: ShellProvider, useClass: MacOSDefaultShellProvider, multi: true },
         { provide: ShellProvider, useClass: LinuxDefaultShellProvider, multi: true },
+        { provide: ShellProvider, useClass: CustomShellProvider, multi: true },
         { provide: ShellProvider, useClass: Cygwin32ShellProvider, multi: true },
         { provide: ShellProvider, useClass: Cygwin64ShellProvider, multi: true },
         { provide: ShellProvider, useClass: GitBashShellProvider, multi: true },

terminus-terminal/src/services/terminal.service.ts

@@ -14,14 +14,22 @@ export class TerminalService {
         private app: AppService,
         private sessions: SessionsService,
         private config: ConfigService,
-        @Inject(ShellProvider) shellProviders: ShellProvider[],
+        @Inject(ShellProvider) private shellProviders: ShellProvider[],
         log: LogService,
     ) {
         this.logger = log.create('terminal')
-        Promise.all(shellProviders.map(x => x.provide())).then(shellLists => {
+        this.reloadShells()
+
+        config.changed$.subscribe(() => {
+            this.reloadShells()
+        })
+    }
+
+    async reloadShells () {
+        this.shells$ = new AsyncSubject<IShell[]>()
+        let shellLists = await Promise.all(this.shellProviders.map(x => x.provide()))
         this.shells$.next(shellLists.reduce((a, b) => a.concat(b)))
         this.shells$.complete()
-        })
     }
 
     async openTab (shell?: IShell, cwd?: string): Promise<TerminalTabComponent> {

terminus-terminal/src/shells/custom.ts

@@ -0,0 +1,21 @@
+import { Injectable } from '@angular/core'
+import { ConfigService } from 'terminus-core'
+
+import { ShellProvider, IShell } from '../api'
+
+@Injectable()
+export class CustomShellProvider extends ShellProvider {
+    constructor (
+        private config: ConfigService,
+    ) {
+        super()
+    }
+
+    async provide (): Promise<IShell[]> {
+        return [{
+            id: 'custom',
+            name: 'Custom',
+            command: this.config.store.terminal.customShell
+        }]
+    }
+}