268 lines
6.6 KiB
Vue
268 lines
6.6 KiB
Vue
|
<template>
|
|||
|
|
<div class="demo-root">
|
|||
|
|
<div class="demo-header">
|
|||
|
|
<span class="title">export 决定子进程能不能"看见"变量</span>
|
|||
|
|
<span class="subtitle">切换开关，观察子进程是否能读到父进程设置的变量</span>
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
<div class="control-panel">
|
|||
|
|
<label class="toggle-wrap">
|
|||
|
|
<span class="toggle-label">使用 <code>export</code></span>
|
|||
|
|
<button class="toggle-btn" :class="{ on: useExport }" @click="useExport = !useExport">
|
|||
|
|
<span class="thumb" />
|
|||
|
|
</button>
|
|||
|
|
</label>
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
<div class="two-col">
|
|||
|
|
<!-- Parent shell -->
|
|||
|
|
<div class="shell-box parent">
|
|||
|
|
<div class="shell-title">父进程（Shell）</div>
|
|||
|
|
<div class="shell-body">
|
|||
|
|
<div class="cmd-line">
|
|||
|
|
<span class="prompt">$</span>
|
|||
|
|
<span class="cmd" :class="{ exported: useExport }">
|
|||
|
|
<span v-if="useExport">export </span>MY_VAR="hello"
|
|||
|
|
</span>
|
|||
|
|
</div>
|
|||
|
|
<div class="cmd-line">
|
|||
|
|
<span class="prompt">$</span>
|
|||
|
|
<span class="cmd">echo $MY_VAR</span>
|
|||
|
|
</div>
|
|||
|
|
<div class="output">hello</div>
|
|||
|
|
<div class="cmd-line">
|
|||
|
|
<span class="prompt">$</span>
|
|||
|
|
<span class="cmd">bash -c 'echo $MY_VAR'</span>
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
<!-- Arrow -->
|
|||
|
|
<div class="arrow-col">
|
|||
|
|
<div class="arrow-label">启动子进程</div>
|
|||
|
|
<div class="arrow-icon">→</div>
|
|||
|
|
<div class="inherit-tag" :class="useExport ? 'yes' : 'no'">
|
|||
|
|
{{ useExport ? '变量已继承' : '变量未继承' }}
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
<!-- Child shell -->
|
|||
|
|
<div class="shell-box child" :class="{ has: useExport, missing: !useExport }">
|
|||
|
|
<div class="shell-title">子进程（bash -c ...）</div>
|
|||
|
|
<div class="shell-body">
|
|||
|
|
<div class="cmd-line">
|
|||
|
|
<span class="prompt">$</span>
|
|||
|
|
<span class="cmd">echo $MY_VAR</span>
|
|||
|
|
</div>
|
|||
|
|
<div v-if="useExport" class="output success">hello</div>
|
|||
|
|
<div v-else class="output empty">（空，什么都没有）</div>
|
|||
|
|
<div class="cmd-line muted">
|
|||
|
|
<span class="prompt">#</span>
|
|||
|
|
<span class="cmd muted-text">子进程无法修改父进程的变量</span>
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
<div class="info-box">
|
|||
|
|
<strong>{{ useExport ? '有 export：' : '没有 export：' }}</strong>
|
|||
|
|
{{ useExport
|
|||
|
|
? '变量被标记为"可导出"，子进程启动时自动继承一份副本。'
|
|||
|
|
: '变量只存在于当前 Shell，子进程读到的是空字符串。' }}
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
</template>
|
|||
|
|
|
|||
|
|
<script setup>
|
|||
|
|
import { ref } from 'vue'
|
|||
|
|
const useExport = ref(false)
|
|||
|
|
</script>
|
|||
|
|
|
|||
|
|
<style scoped>
|
|||
|
|
.demo-root {
|
|||
|
|
border: 1px solid var(--vp-c-divider);
|
|||
|
|
border-radius: 8px;
|
|||
|
|
background: var(--vp-c-bg-soft);
|
|||
|
|
padding: 1rem;
|
|||
|
|
margin: 0.75rem 0;
|
|||
|
|
min-width: 0;
|
|||
|
|
overflow: hidden;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
.demo-header {
|
|||
|
|
display: flex;
|
|||
|
|
align-items: baseline;
|
|||
|
|
gap: 0.6rem;
|
|||
|
|
flex-wrap: wrap;
|
|||
|
|
margin-bottom: 0.85rem;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
.demo-header .title { font-size: 1rem; font-weight: bold; color: var(--vp-c-text-1); }
|
|||
|
|
.demo-header .subtitle { font-size: 0.82rem; color: var(--vp-c-text-2); }
|
|||
|
|
|
|||
|
|
.control-panel {
|
|||
|
|
display: flex;
|
|||
|
|
align-items: center;
|
|||
|
|
gap: 0.75rem;
|
|||
|
|
background: var(--vp-c-bg);
|
|||
|
|
border: 1px solid var(--vp-c-divider);
|
|||
|
|
border-radius: 6px;
|
|||
|
|
padding: 0.55rem 0.75rem;
|
|||
|
|
margin-bottom: 0.85rem;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
.toggle-wrap {
|
|||
|
|
display: flex;
|
|||
|
|
align-items: center;
|
|||
|
|
gap: 0.65rem;
|
|||
|
|
cursor: pointer;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
.toggle-label {
|
|||
|
|
font-size: 0.85rem;
|
|||
|
|
color: var(--vp-c-text-1);
|
|||
|
|
user-select: none;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
.toggle-label code {
|
|||
|
|
font-family: var(--vp-font-family-mono);
|
|||
|
|
background: var(--vp-c-bg-soft);
|
|||
|
|
padding: 0 0.3rem;
|
|||
|
|
border-radius: 3px;
|
|||
|
|
color: var(--vp-c-brand);
|
|||
|
|
font-size: 0.82rem;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
.toggle-btn {
|
|||
|
|
position: relative;
|
|||
|
|
width: 44px;
|
|||
|
|
height: 24px;
|
|||
|
|
border-radius: 12px;
|
|||
|
|
border: 1px solid var(--vp-c-divider);
|
|||
|
|
background: var(--vp-c-bg-alt);
|
|||
|
|
cursor: pointer;
|
|||
|
|
transition: all 0.25s;
|
|||
|
|
flex-shrink: 0;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
.toggle-btn.on {
|
|||
|
|
background: var(--vp-c-brand);
|
|||
|
|
border-color: var(--vp-c-brand);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
.thumb {
|
|||
|
|
position: absolute;
|
|||
|
|
width: 18px;
|
|||
|
|
height: 18px;
|
|||
|
|
border-radius: 50%;
|
|||
|
|
background: var(--vp-c-text-2);
|
|||
|
|
top: 2px;
|
|||
|
|
left: 2px;
|
|||
|
|
transition: all 0.25s;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
.toggle-btn.on .thumb {
|
|||
|
|
left: 22px;
|
|||
|
|
background: white;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/* ── Two column layout ── */
|
|||
|
|
.two-col {
|
|||
|
|
display: grid;
|
|||
|
|
grid-template-columns: 1fr auto 1fr;
|
|||
|
|
gap: 0.6rem;
|
|||
|
|
align-items: center;
|
|||
|
|
margin-bottom: 0.75rem;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
@media (max-width: 600px) {
|
|||
|
|
.two-col {
|
|||
|
|
grid-template-columns: 1fr;
|
|||
|
|
}
|
|||
|
|
.arrow-col { flex-direction: row; justify-content: center; }
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
.shell-box {
|
|||
|
|
border: 2px solid var(--vp-c-divider);
|
|||
|
|
border-radius: 6px;
|
|||
|
|
overflow: hidden;
|
|||
|
|
background: #1e1e2e;
|
|||
|
|
transition: border-color 0.3s;
|
|||
|
|
min-width: 0;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
.shell-box.has { border-color: var(--vp-c-green-1); }
|
|||
|
|
.shell-box.missing { border-color: color-mix(in srgb, #f87171 60%, transparent); }
|
|||
|
|
|
|||
|
|
.shell-title {
|
|||
|
|
background: #181825;
|
|||
|
|
padding: 0.28rem 0.65rem;
|
|||
|
|
font-size: 0.72rem;
|
|||
|
|
color: #6c7086;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
.shell-body {
|
|||
|
|
padding: 0.5rem 0.65rem;
|
|||
|
|
font-family: var(--vp-font-family-mono);
|
|||
|
|
font-size: 0.8rem;
|
|||
|
|
line-height: 1.8;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
.cmd-line { display: flex; gap: 0.4rem; align-items: baseline; }
|
|||
|
|
|
|||
|
|
.prompt { color: #6c7086; flex-shrink: 0; }
|
|||
|
|
.cmd { color: #cdd6f4; word-break: break-all; }
|
|||
|
|
.cmd.exported { color: #a6e3a1; }
|
|||
|
|
|
|||
|
|
.muted .prompt { color: #45475a; }
|
|||
|
|
.muted-text { color: #45475a; font-style: italic; font-size: 0.72rem; }
|
|||
|
|
|
|||
|
|
.output {
|
|||
|
|
padding-left: 1rem;
|
|||
|
|
font-size: 0.82rem;
|
|||
|
|
line-height: 1.6;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
.output.success { color: #a6e3a1; }
|
|||
|
|
.output.empty { color: #585b70; font-style: italic; }
|
|||
|
|
|
|||
|
|
.arrow-col {
|
|||
|
|
display: flex;
|
|||
|
|
flex-direction: column;
|
|||
|
|
align-items: center;
|
|||
|
|
gap: 0.3rem;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
.arrow-label { font-size: 0.7rem; color: var(--vp-c-text-3); white-space: nowrap; }
|
|||
|
|
|
|||
|
|
.arrow-icon {
|
|||
|
|
font-size: 1.4rem;
|
|||
|
|
color: var(--vp-c-text-3);
|
|||
|
|
transition: color 0.3s;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
.inherit-tag {
|
|||
|
|
font-size: 0.7rem;
|
|||
|
|
padding: 0.15rem 0.45rem;
|
|||
|
|
border-radius: 4px;
|
|||
|
|
font-weight: bold;
|
|||
|
|
white-space: nowrap;
|
|||
|
|
transition: all 0.3s;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
.inherit-tag.yes { background: color-mix(in srgb, var(--vp-c-green-1) 15%, transparent); color: var(--vp-c-green-1); border: 1px solid var(--vp-c-green-1); }
|
|||
|
|
.inherit-tag.no { background: color-mix(in srgb, #f87171 12%, transparent); color: #f87171; border: 1px solid #f87171; }
|
|||
|
|
|
|||
|
|
.info-box {
|
|||
|
|
display: block;
|
|||
|
|
background: var(--vp-c-bg-alt);
|
|||
|
|
border-radius: 6px;
|
|||
|
|
padding: 0.6rem 0.75rem;
|
|||
|
|
font-size: 0.84rem;
|
|||
|
|
color: var(--vp-c-text-2);
|
|||
|
|
line-height: 1.6;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
.info-box strong { white-space: nowrap; color: var(--vp-c-text-1); }
|
|||
|
|
</style>
|