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@@ -1,11 +1,13 @@
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function pgsh(ev) {
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var self = this
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+ /**
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+ * Terminal UI/Shell Entry Point
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+ */
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ev.on('cmd_entered', function(input) {
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- // First word is the command, all others are arguments.
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- var parts = input.trim().split(' ')
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- var command = self.active ? self.active : parts.splice(0, 1).toString()
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- var args = parts
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+ var args = input.trim().split(' ')
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+ // Use the first argument as a command, or the value of `active`.
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+ var command = self.active ? self.active : args.splice(0, 1).toString()
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if (command in self.commands) {
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self[command](args)
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} else if (command) {
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@@ -13,49 +15,121 @@ function pgsh(ev) {
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}
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})
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- var show = function(text) { ev.trigger('disp_add', text) }
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- var set = function(text) { ev.trigger('disp_set', text) }
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-
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- this.prompt = '<span style="color:blueviolet">pgs </span>' +
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- '<span style="color:green">$ </span>'
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- this.prompt_su = '<span style="color:tomato">root </span>' +
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- '<span style="color:red">% </span>'
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- this.welcome = 'Linux parsleygardens.net 3.4.5-6-7-i286 #8 PGS Vimputer ' +
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+ /**
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+ * Variables and Setup
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+ */
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+ this.cwd = '/home/pgs'
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+ var getPrompt = function() {
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+ if (self.su_active) {
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+ return '<span style="color:purple">root </span>' +
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+ '<span style="color:tomato">' + self.cwd + ' </span>' +
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+ '<span style="color:red">% </span>'
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+ }
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+ return '<span style="color:blueviolet">pgs </span>' +
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+ '<span style="color:sienna">' + self.cwd + ' </span>' +
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+ '<span style="color:green">$ </span>'
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+ }
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+ this.prompt = getPrompt()
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+ this.welcome = 'Linux parsleygardens.net 3.4.5-6-7-i286 #8 PGS Vimputer' +
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'3.4.56-7 i286\n\n' +
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'~ Welcome to Parsley Gardens! ~\n' +
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'"He maketh me to lie down in green pa..."\n\n' +
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'Type `help` for list of commands\n\n'
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+ this.tree = {
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+ 'bin': {},
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+ 'etc': {},
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+ 'home': {
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+ 'pgs': {
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+ 'about.md':
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+ '# Parsley Gardens\n\nSite created by ** Weiyi Lou ** ' +
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+ new Date().getFullYear(),
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+ 'git.txt':
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+ 'Code Repository at <a target="_blank"' +
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+ 'href="https://code.parsleygardens.net/explore/projects">' +
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+ 'code.parsleygardens.net</a>',
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+ 'magic.txt': 'slightlymagic.com.au'
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+ }
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+ },
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+ 'mnt': {},
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+ 'root': {
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+ 'bin': {
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+ 'destroy.sh':
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+ "#!/usr/bin/env bash\n" +
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+ "set -euo pipefail\n" +
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+ "IFS=$'\\n\\t'\n\n" +
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+ "rm -rf /"
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+ },
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+ 'everyday_lost_item_locations_global.sqlite': '',
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+ 'government-secrets.txt': ''
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+ },
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+ 'usr': {
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+ 'local': {
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+ 'bin': {
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+ 'nothing.txt': 'Really nothing'
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+ }
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+ }
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+ },
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+ 'var': {
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+ 'cache': {},
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+ 'log': {},
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+ 'run': {}
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+ }
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+ }
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this.commands = {
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- 'about': 'Author Information',
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+ 'about': 'Author information',
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+ 'cat': 'Con(cat)enate the contents of a file',
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+ 'cd': 'Change folder/directory',
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'clear': 'Clears the screen',
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- 'version': 'Shell Information',
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- 'git': 'Link to Code Repository',
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- 'hello': 'Say hello to the computer\nUsage: hello [name]',
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- 'magic': 'Link to Artist',
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- 'su': 'Gain Phenomenal Cosmic Power',
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'exit': 'Leave the current context',
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+ 'hello': 'Say hello to the computer\nUsage: hello [name]',
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+ 'help': 'List commands or view information for one\nUsage: help [command]',
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+ 'ls': 'List folder contents',
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+ 'pwd': 'Show the current working directory',
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+ 'question': 'Displays a question',
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'search': 'Search the Web (with a Duck)\nUsage: search [query]',
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- 'questions': 'Answer some questions!',
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- 'help': 'List commands or view information for one\nUsage: help [command]'
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+ 'su': 'Gain Phenomenal Cosmic Power',
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+ 'version': 'Display shell information'
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}
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/**
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- * The Commands
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+ * Commands
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*/
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this.about = function(args) {
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- show('Site by Weiyi Lou ' + new Date().getFullYear() + '\n')
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+ self.cat(['/home/pgs/about.md'])
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+ }
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+ this.cat = function(args) {
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+ var arg = args.join(' ').trim()
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+ var path = resolveAbsPath(arg)
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+ if (pathExists(path, true)) {
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+ var content = getContents(path)
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+ if (path.search('.md|.sh') != -1) {
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+ content = hljs.highlightAuto(content).value
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+ }
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+ show('\n' + content + '\n\n')
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+ } else {
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+ show("cd: " + arg + ": no such file")
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+ }
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+ }
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+ this.cd = function(args) {
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+ var arg = args.join(' ').trim()
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+ var path = resolveAbsPath(arg)
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+ if (pathExists(path)) {
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+ self.cwd = path
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+ ev.trigger('prompt_set', getPrompt())
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+ } else {
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+ show("cd: " + arg + ": no such directory")
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+ }
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}
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this.clear = function(args) {
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ev.trigger('disp_clear')
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}
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- this.version = function(args) {
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- show('Parsley Gardens Shell (pgsh) 1.0.0 Built with ' +
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- '<a target="_blank" href="http://riotjs.com/">Riot</a>')
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- }
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- this.git = function(args) {
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- show('Code Repository at <a target="_blank" ' +
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- 'href="https://code.parsleygardens.net/explore/projects">' +
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- 'code.parsleygardens.net</a>')
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+ this.exit = function(args) {
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+ if (self.su_active) {
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+ self.su_active = false
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+ ev.trigger('prompt_set', getPrompt())
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+ return
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+ }
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+ show('Close browser window to exit')
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}
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this.hello = function(args) {
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address = args.join(' ').trim()
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@@ -67,55 +141,40 @@ function pgsh(ev) {
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show('My name is not "' + address + '"')
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}
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}
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- this.magic = function(args) {
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- show('Animation and Illustration at <a target="_blank" ' +
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- 'href="http://slightlymagic.com.au">slightlymagic.com.au</a>')
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- }
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- this.su = function(args) {
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- if (self.su_active !== true) {
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- self.su_active = true
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- if (!self.su_warned) {
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- self.su_warned = true
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- show('We trust you have received the usual lecture from the ' +
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- 'local System Administrator.\n' +
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- 'It usually boils down to these three things:\n\n' +
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- ' #1) Respect the privacy of others.\n' +
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- ' #2) Think before you type.\n' +
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- ' #3) With great power comes great\n\n')
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+ this.help = function(args) {
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+ command = args.join(' ').trim()
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+ if (command in self.commands) {
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+ show(self.commands[command])
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+ } else if (command) {
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+ show('No information for: ' + command)
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+ } else {
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+ var commands = [];
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+ for (var name in self.commands) {
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+ commands.push(name)
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}
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- ev.trigger('prompt_set', self.prompt_su)
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+ show('Available commands:\n\n' + commands.sort().join(' ') +
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+ '\n\n`help [command]` for more information.')
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}
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}
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- this.exit = function(args) {
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- if (self.su_active) {
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- self.su_active = false
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- ev.trigger('prompt_set', self.prompt)
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- return
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+ this.ls = function(args) {
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+ var arg = args.join(' ').trim()
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+ var folder = arg || self.cwd
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+ var path = resolveAbsPath(folder)
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+ if (pathExists(path)) {
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+ var contents = getContents(path)
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+ var output = ''
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+ for (var item in contents) {
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+ output += item + "\n"
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+ }
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+ show(output)
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+ } else {
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+ show("ls: " + args + ": no such directory")
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}
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- show('Close browser window to exit')
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}
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- this.search = function(args) {
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- if (!args.join(' ').trim()) { return show(self.commands.search) }
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- ev.trigger('prompt_hide')
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- show('Searching for "' + args.join(' ') + '" in new window...')
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- setTimeout(function() {
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- window.open('https://duckduckgo.com/?q=' + args.join('+'), '_blank')
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- ev.trigger('prompt_show')
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- }, 1000)
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+ this.pwd = function(args) {
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+ show(self.cwd)
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}
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- this.questions = function(args) {
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- if (!self.active) {
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- self.active = 'questions'
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- ev.trigger('context_swap', 'questions')
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- set('Welcome to the questions. Do you want to continue?')
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- return
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- }
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- if (args == 'exit') {
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- self.active = ''
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- ev.trigger('context_swap')
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- show('Thanks for answering questions!')
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- return
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- }
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+ this.question = function(args) {
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var questions = [
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'Isn\'t <a href="https://www.youtube.com/watch?v=dQw4w9WgXcQ"' +
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' target="_blank">this song</a> the best?',
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@@ -125,28 +184,88 @@ function pgsh(ev) {
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"Don't you mean prism?",
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'Butts twelve by pies?',
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'I say there, Monstrosity. Do you know the times?',
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- '...is essay-writing an exercise in masking ignorance?',
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'What is the name of the spaces between the teeth of a comb?',
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'Why are you dressed up like Ship\'s Captain?'
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]
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- set('You answered with "' + args + '"!\nNext question!\n' +
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- '<span style="color:#555">(Type "exit" to end)</span>\n\n')
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var rand = Math.floor(Math.random() * questions.length);
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show(questions[rand])
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}
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- this.help = function(args) {
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- command = args.join(' ').trim()
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- if (command in self.commands) {
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- show(self.commands[command])
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- } else if (command) {
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- show('No information for: ' + command)
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- } else {
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- var commands = [];
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- for(var name in self.commands) {
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- commands.push(name)
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+ this.search = function(args) {
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+ if (!args.join(' ').trim()) { return show(self.commands.search) }
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+ ev.trigger('prompt_hide')
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+ show('Searching for "' + args.join(' ') + '" in new window...')
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+ setTimeout(function() {
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+ window.open('https://duckduckgo.com/?q=' + args.join('+'), '_blank')
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+ ev.trigger('prompt_show')
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+ }, 1000)
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+ }
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+ this.su = function(args) {
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+ if (self.su_active !== true) {
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+ self.su_active = true
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+ if (!self.su_warned) {
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+ self.su_warned = true
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+ show('We trust you have received the usual lecture from the ' +
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+ 'local System Administrator.\n' +
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+ 'It usually boils down to these three things:\n\n' +
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+ ' #1) Respect the privacy of others.\n' +
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+ ' #2) Think before you type.\n' +
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+ ' #3) With great power comes great\n\n')
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}
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- show('Available commands:\n' + commands.sort().join(' ') +
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- '\n\n`help [command]` for more information.')
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+ ev.trigger('prompt_set', getPrompt())
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}
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}
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+ this.version = function(args) {
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+ show('Parsley Gardens Shell (pgsh) 1.0.0\nBuilt with ' +
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+ '<a target="_blank" href="http://riotjs.com/">Riot</a>')
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+ }
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+
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+ /**
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+ * Helper Functions
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+ */
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+ var show = function(text) { ev.trigger('disp_add', text) }
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+ var set = function(text) { ev.trigger('disp_set', text) }
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+
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+ // Calculate a destination's path with respect to the current folder.
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+ var resolveAbsPath = function(dest) {
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+ var parts = dest.trim().split('/')
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+ var absolute = dest.startsWith('/') || self.cwd == '/'
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+ var path = absolute ? [''] : self.cwd.split('/')
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+ parts.forEach(function(part) {
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+ if (part == '..' && path.length > 1) { path.pop() }
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+ if (part != '..' && part) { path.push(part) }
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+ })
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+ return path.length > 1 ? path.join('/') : '/'
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+ }
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+
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+ // Check if a path exists in the tree
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+ var pathExists = function(path, file = false) {
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+ var parts = path.trim().split('/')
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+ var fname = file ? parts.pop() : ''
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+ var tree = self.tree
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+ for (var i = 0; i < parts.length; i++) {
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+ var part = parts[i]
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+ if (!part) {
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+ continue
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+ }
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+ if (!(tree.hasOwnProperty(part) && typeof tree[part] === 'object')) {
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+ return false
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+ }
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+ tree = tree[part]
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+ }
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+ if (file && !(tree.hasOwnProperty(fname) && typeof tree[fname] === 'string')) {
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+ return false
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+ }
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+ return true
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+ }
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+
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+ // Return the contents of a given path.
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+ var getContents = function(path) {
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+ var parts = path.trim().split('/')
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+ var tree = self.tree
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+ parts.forEach(function(part) {
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+ if (part) { tree = tree[part] }
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+ })
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+ return tree
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+ }
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+
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}
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Weiyi Lou