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node-red/nodes/core/storage/28-tail.html

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<script type="text/x-red" data-template-name="tail">
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<div class="form-row">
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<label for="node-input-filename"><i class="fa fa-file"></i> <span data-i18n="tail.label.filename"></span></label>
<input id="node-input-filename" type="text">
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</div>
<div class="form-row">
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<label for="node-input-filetype"><i class="fa fa-file-text-o"></i> <span data-i18n="tail.label.type"></span></label>
<select type="text" id="node-input-filetype">
<option value="text" data-i18n="tail.action.text"></option>
<option value="binary" data-i18n="tail.action.binary"></option>
</select>
</div>
<div class="form-row" id="node-tail-split">
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<label>&nbsp;</label>
<input type="checkbox" id="node-input-split" placeholder="Name" style="display: inline-block; width: auto; vertical-align: top;">
<label for="node-input-split" style="width: 70%;"><span data-i18n="tail.label.splitlines"></span></label>
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</div>
<div class="form-row">
<label for="node-input-name"><i class="fa fa-tag"></i> <span data-i18n="common.label.name"></span></label>
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<input type="text" id="node-input-name" data-i18n="[placeholder]common.label.name">
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</div>
</script>
<script type="text/x-red" data-help-name="tail">
<p>Tails (watches for things to be added) to the configured file. (Linux/Mac ONLY)</p>
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<p>This will not work on Windows filesystems, as it relies on the <b>tail -F</b> command.</p>
<h3>Outputs</h3>
<ul>
<li>Text (UTF-8) files will be returned as strings.</li>
<li>Binary files will be returned as Buffer objects.</li>
</ul>
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</script>
<script type="text/javascript">
RED.nodes.registerType('tail',{
category: 'storage-input',
defaults: {
name: {value:""},
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filetype: {value:"text"},
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split: {value:false},
filename: {value:"",required:true}
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},
color:"BurlyWood",
inputs:0,
outputs:1,
icon: "file.png",
label: function() {
return this.name||this.filename||"tail";
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},
labelStyle: function() {
return this.name?"node_label_italic":"";
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},
oneditprepare: function() {
$("#node-input-filetype").on("change",function() {
if (this.value === "text") { $("#node-tail-split").show(); }
else { $("#node-tail-split").hide(); }
});
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}
});
</script>