add example, fix wrong validation

Author: heinthanth

README.md

@@ -5,7 +5,48 @@ Just a make-like task runner but with more power! It's written in CoffeeScript +
 ## Downloads
 
 Go to Release page and download builds!
-And move it to your path. Eg. `/usr/bin`, `/usr/local/bin`, etc. For windows, the same :P.
+And move it to ur path. Eg. `/usr/bin`, `/usr/local/bin`, etc. For windows, the same :P.
+
+## Configurations
+
+Complete Configurations Example:
+
+```yaml
+dependOnMeToo:
+  description: another task
+  # cwd: /some/path/too
+  command:
+  - cmd: echo "I can read {{ opt.release }} if 'dependOnMe' task call me"
+    when: opt.release # if opt.release is true
+  - cmd: echo "Since passParentOptions is true in 'dependOnMe' task"
+    when: opt.release # if opt.release is true
+  passEnv: [ PATH ] # u need to pass env to use ur PATH.
+dependOnMe:
+  description: some task
+  # cwd: / # try change cwd and see {{ Deno.cwd() }} output!
+  shell: bash # default shell
+  dependencies:
+  - name: dependOnMeToo
+    passParentOptions: true
+  command:
+  - cmd: echo "I can read {{ opt.FOO }}"
+    shell: zsh # u can use another shell rather than default one
+  - cmd: echo "Don't run me unless status is 'true'"
+    when: opt.status == 'true'
+  - echo "I'm a command too. In {{ Deno.cwd() }}" # deno expressions are supported
+taskName:
+  description: a description
+  dependencies:
+  - name: dependOnMe
+    options:
+      FOO: bar
+      status: "{{ opt.status == 1 }}"
+      release: "{{ opt.release }}" # u can use --release CLI option if passCLI is true
+  passCLI: true
+  command: echo "this is main task"
+```
+
+I think this example show u a lot! Have Fun xuerunning!
 
 ## How to Build
 

example.xuerun

@@ -0,0 +1,32 @@
+dependOnMeToo:
+  description: another task
+  # cwd: /some/path/too
+  command:
+  - cmd: echo "I can read {{ opt.release }} if 'dependOnMe' task call me"
+    when: opt.release # if opt.release is true
+  - cmd: echo "Since passParentOptions is true in 'dependOnMe' task"
+    when: opt.release # if opt.release is true
+  passEnv: [ PATH ] # u need to pass env to use ur PATH.
+dependOnMe:
+  description: some task
+  # cwd: / # try change cwd and see {{ Deno.cwd() }} output!
+  shell: bash # default shell
+  dependencies:
+  - name: dependOnMeToo
+    passParentOptions: true
+  command:
+  - cmd: echo "I can read {{ opt.FOO }}"
+    shell: zsh # u can use another shell rather than default one
+  - cmd: echo "Don't run me unless status is 'true'"
+    when: opt.status == 'true'
+  - echo "I'm a command too. In {{ Deno.cwd() }}" # deno expressions are supported
+taskName:
+  description: a description
+  dependencies:
+  - name: dependOnMe
+    options:
+      FOO: bar
+      status: "{{ opt.status == 1 }}"
+      release: "{{ opt.release }}" # u can use --release CLI option if passCLI is true
+  passCLI: true
+  command: echo "this is main task"

src/schema.coffee

@@ -2,8 +2,12 @@ import { create, defaulted, optional, union, object, record,
     array, string, number, boolean, validate } from "https://esm.sh/superstruct";
 
 # use eval?
-XueRunUserCmd = union([string(), object({ shell: optional(string()), cmd: string(),
-    'when': defaulted(union([string(), number(), boolean()]), () => 'true') })]);
+XueRunUserCmd = union([
+    string(),
+    object({
+        shell: optional(string()),
+        cmd: string(),
+        'when': defaulted(optional(union([string(), number(), boolean()])), () => 'true') }) ]);
 
 XueRunIngredient$option = union([string(), number(), boolean()])
 export XueRunIngredient = object