3 |
11 |
4 |
10 | 
{:site.subtitle:}
6 | 7 | 8 | 9 |
View on LuaRocks
12 |
23 |
13 |
18 |
22 | 19 | Edit this page on GitHub 20 |
21 |'}
86 | for line, ws in code:gmatch('([^\n]*)(\n*)') do
87 | local cwd, cmd = line:match('^([^$]*)$(.*)$')
88 | if cwd then
89 | sb[#sb+1] = ''..cwd
90 | ..'❯'
91 | ..cmd..''
92 | else
93 | sb[#sb+1] = line
94 | end
95 | sb[#sb+1] = ws
96 | end
97 | sb[#sb+1] = ''..code..'
Lift – automate tasks and create tools in Lua
2 |
3 | [](https://github.com/tbastos/lift/releases) [](https://travis-ci.org/tbastos/lift) [](https://ci.appveyor.com/project/tbastos/lift) [](https://coveralls.io/github/tbastos/lift?branch=master) [](LICENSE)
4 |
5 | Lift is both a general-purpose **task automation tool** and a **framework for command-line tools** in Lua. It’s well suited for creating build scripts, checkers, code generators, package managers and other kinds of command-line productivity tools.
6 |
7 | ## Contributing
8 |
9 | Anyone can help make this project better – follow our [contribution guidelines](CONTRIBUTING.md) and check out the [project's philosophy](CONTRIBUTING.md#philosophy).
10 |
11 | ## Running Tests
12 |
13 | Install [busted] and run `busted -v` at the root dir.
14 |
15 | ## References
16 |
17 | The following projects have in some way influenced Lift's design:
18 |
19 | - Command-line interface: [Go], [argparse], [npm]
20 | - Configuration: [npm], [CMake], [Vim]
21 | - Diagnostics: [Clang]
22 | - Task/build system: [Rake]/[Jake], [Gulp]
23 |
24 | [argparse]: https://github.com/mpeterv/argparse
25 | [busted]: http://olivinelabs.com/busted
26 | [Clang]: http://clang.llvm.org/docs/InternalsManual.html
27 | [CMake]: http://www.cmake.org/
28 | [Go]: https://golang.org/cmd/go/
29 | [Gulp]: http://gulpjs.com/
30 | [Jake]: http://jakejs.com/
31 | [libuv]: http://libuv.org/
32 | [luv]: https://github.com/luvit/luv
33 | [LPeg]: http://www.inf.puc-rio.br/~roberto/lpeg/
34 | [Lua]: http://www.lua.org/
35 | [LuaRocks]: http://www.luarocks.org/
36 | [npm]: https://www.npmjs.org/doc/
37 | [Rake]: http://en.wikipedia.org/wiki/Rake_(software)
38 | [Vim]: http://en.wikipedia.org/wiki/Vim_(text_editor)
39 |
--------------------------------------------------------------------------------
/bin/lift:
--------------------------------------------------------------------------------
1 | #!/usr/bin/env lua
2 |
3 | local cli = require 'lift.cli'
4 | local task = require 'lift.task'
5 | local async = require 'lift.async'
6 | local config = require 'lift.config'
7 | local loader = require 'lift.loader'
8 | local diagnostics = require 'lift.diagnostics'
9 |
10 | -- enable colors by default on supported terminals
11 | require'lift.color'.set_enabled(os.getenv('TERM') or os.getenv('ANSICON'))
12 |
13 | -- add files specific to this executable to the ${load_path}
14 | config.set_const('APP_LOAD_PATH', config.LIFT_SRC_DIR..'/files/lift')
15 |
16 | os.exit(diagnostics.wrap(function()
17 | -- run init scripts
18 | local top_scope = loader.init()
19 |
20 | -- run command-line interface scripts
21 | local app = cli.new()
22 | config:new_parent('cli')
23 | loader.load_all('cli', nil, app)
24 |
25 | -- root command is an alias to the 'task run' command
26 | app:delegate_to(app:get_command('task run'))
27 |
28 | -- command 'list' is an alias to 'task list'
29 | app:command 'list' :delegate_to(app:get_command 'task list')
30 | :desc('list [pattern]', 'Show list of tasks (that match a pattern)')
31 |
32 | -- run the CLI in a new thread
33 | local future = async(function()
34 | return app:process(arg)
35 | end)
36 |
37 | async.run() -- main loop
38 | future:check_error() -- propagate CLI errors
39 | async.check_errors() -- propagate unchecked errors from other threads
40 |
41 | end))
42 |
--------------------------------------------------------------------------------
/bin/lift.bat:
--------------------------------------------------------------------------------
1 | @echo off
2 | lua .\bin\lift %*
3 | exit /b %ERRORLEVEL%
4 |
--------------------------------------------------------------------------------
/doc/assets/sass/_code.scss:
--------------------------------------------------------------------------------
1 | // prism.js theme
2 |
3 | $blue: #2239a8;
4 | $gray: #969896;
5 | $green: #00A000;
6 | $magenta: #900090;
7 | $maroon: #a71d5d;
8 | $purple: #795da3;
9 | $sky: #07a;
10 | $teal: #009090;
11 |
12 | // base
13 | code,
14 | code[class*='language-'],
15 | pre[class*='language-'] {
16 | color: $black;
17 | cursor: text;
18 | direction: ltr;
19 | font-family: $code-font;
20 | hyphens: none;
21 | line-height: 1.4;
22 | tab-size: 4;
23 | text-align: left;
24 | white-space: pre;
25 | word-spacing: normal;
26 | }
27 |
28 | // code blocks
29 | pre[class*='language-'], pre.console {
30 | // border-left: 3px solid #eee;
31 | font-size: $code-font-size;
32 | margin: 0 0 16px 0;
33 | overflow: auto;
34 | padding: 16px;
35 | }
36 |
37 | p code,
38 | li code,
39 | table code {
40 | margin: 0;
41 | padding: 0.2em 0;
42 | border-radius: 3px;
43 | font-size: $code-font-size;
44 | background-color: rgba(0, 0, 0, 0.04);
45 | &:before,
46 | &:after {
47 | letter-spacing: -0.2em;
48 | content: '\00a0';
49 | }
50 | }
51 |
52 | code,
53 | :not(pre) > code[class*='language-'],
54 | pre[class*='language-'] {
55 | background-color: #f7f7f7;
56 | border-radius: $border-radius;
57 | }
58 |
59 | // inline code
60 | :not(pre) > code[class*='language-'] {
61 | padding: 0.1em;
62 | border-radius: 0.3em;
63 | }
64 |
65 |
66 | // token colors
67 | .token {
68 |
69 | &.comment,
70 | &.prolog,
71 | &.doctype,
72 | &.cdata {
73 | color: $gray;
74 | }
75 |
76 | &.string,
77 | &.atrule,
78 | &.attr-value {
79 | color: $teal;
80 | }
81 |
82 | &.punctuation,
83 | &.property,
84 | &.tag {
85 | color: $black;
86 | }
87 |
88 | &.function {
89 | color: $blue;
90 | }
91 |
92 | &.boolean,
93 | &.number {
94 | color: $sky;
95 | }
96 |
97 | &.selector,
98 | &.attr-name,
99 | &.attr-value .punctuation:first-child,
100 | &.operator,
101 | &.keyword,
102 | &.regex,
103 | &.important {
104 | color: $maroon;
105 | }
106 |
107 |
108 | &.entity,
109 | &.url,
110 | .language-css &.string {
111 | color: $blue;
112 | }
113 |
114 | &.entity {
115 | cursor: help;
116 | }
117 |
118 | }
119 |
120 | .namespace {
121 | opacity: 0.7;
122 | }
123 | // Command-Line Prompt
124 |
125 | .command-line-prompt {
126 | border-right: 1px solid #999;
127 | display: block;
128 | float: left;
129 | font-size: 100%;
130 | letter-spacing: -1px;
131 | margin-right: 1em;
132 | pointer-events: none;
133 |
134 | -webkit-user-select: none;
135 | -moz-user-select: none;
136 | -ms-user-select: none;
137 | user-select: none;
138 | }
139 |
140 | .command-line-prompt > span:before {
141 | color: #999;
142 | content: ' ';
143 | display: block;
144 | padding-right: 0.8em;
145 | }
146 |
147 | .command-line-prompt > span[data-user]:before {
148 | content: "[" attr(data-user) "@" attr(data-host) "] $";
149 | }
150 |
151 | .command-line-prompt > span[data-user="root"]:before {
152 | content: "[" attr(data-user) "@" attr(data-host) "] #";
153 | }
154 |
155 | .command-line-prompt > span[data-prompt]:before {
156 | content: attr(data-prompt);
157 | }
158 |
--------------------------------------------------------------------------------
/doc/assets/templates/footer.html:
--------------------------------------------------------------------------------
1 |
4 |
--------------------------------------------------------------------------------
/doc/assets/templates/header.html:
--------------------------------------------------------------------------------
1 |
{:site.subtitle:}
6 | 7 | 8 | 9 |19 | Edit this page on GitHub 20 |
21 |
7 |
8 | ## What is Lift?
9 |
10 | Lift is both a general-purpose **task automation tool** and a **framework for command-line tools** in Lua. It's well suited for creating build scripts, checkers, code generators, package managers and other kinds of command-line productivity tools.
11 |
12 | ## What does Lift do?
13 |
14 | You can use Lift as a **library** to develop standalone applications _(best for control)_, or as a **scripting platform** based on the `lift` command-line tool _(best for productivity)_.
15 |
16 | The `lift` tool gives you access to a collection of commands and tasks defined on a per-project, per-user and per-system basis. It is very flexible and allows you to leverage plugins to do almost anything.
17 |
18 | ~~~lua
19 | local task = require 'lift.task'
20 | local async = require 'lift.async'
21 |
22 | function task.brush_teeth()
23 | print 'Brushing teeth...'
24 | async.sleep(2000) -- 2 seconds
25 | print 'Finished brushing teeth.'
26 | end
27 |
28 | function task.take_shower()
29 | print 'Taking a shower...'
30 | async.sleep(3000) -- 3 seconds
31 | print 'Finished taking a shower.'
32 | end
33 |
34 | function task.get_ready() -- takes 5 seconds total
35 | -- take a shower then brush teeth (serial execution)
36 | task.take_shower()
37 | task.brush_teeth()
38 | print 'Done!'
39 | end
40 |
41 | function task.get_ready_fast() -- takes just 3 seconds
42 | -- brush teeth in the shower (parallel execution)
43 | task{task.take_shower, task.brush_teeth}()
44 | print 'Done fast!'
45 | end
46 |
47 | task.default = task.get_ready
48 | ~~~
49 |
50 |
51 |
52 | ## Features
53 |
54 | - **Tasks** and dependencies concisely written as Lua functions that can run in parallel.
55 | - **Multitasking** with async/await, futures and cooperative scheduling on top of Lua coroutines.
56 | - **Asynchronous I/O** (files, networking, IPC) and process spawning powered by [libuv].
57 | - **Pipelines** consisting of object streams (readable, writable, duplex), pipes (flow control) and filters (transform streams).
58 | - **Diagnostics** engine for high-quality error reporting, testing and tracing.
59 | - Portable **filesystem operations** and `glob()` for shell-style filename matching.
60 | - Composable **command-line interfaces** based on command hierarchies.
61 | - Scoped **configuration system** that gets values from the CLI, environment and Lua files.
62 | - General-purpose [LPeg]-based parsing and AST manipulation framework.
63 | - Text templating engine with support for embedded Lua, partials and indentation.
64 | - Modular, extensible architecture with plugins.
65 |
66 | [libuv]: http://libuv.org/
67 | [LPeg]: http://www.inf.puc-rio.br/~roberto/lpeg/
68 |
69 | ## Why did you write Lift?
70 |
71 | First, because Lua always lacked a general-purpose build/automation tool similar to Ruby's Rake/Thor, or JavaScript's Grunt/Gulp. If I needed to automate something in my C++/Lua projects I would have to resort to non-portable shell scripts, or depend on yet another language toolchain.
72 |
73 | Second, because Lua is an excellent language for automation scripts. It's easy to pick up, supports coroutines, closures and metamethods, and its small size means it's much easier to deploy than other scripting languages. Lua-based tools can achieve exceptional levels of efficiency and portability. However, since Lua comes "without batteries", it was never an easy language to write tools in.
74 |
75 | As a standalone tool and framework, Lift intends to solve both these problems.
76 | I'm personally using it (as a framework) to write a development tool for C/C++, and also (as a tool) to generate this website.
77 |
78 | In the future Lift will be available as an easy-to-deploy standalone executable independent of LuaRocks, so that you can use it to bootstrap your development environment from scratch.
79 |
80 |
--------------------------------------------------------------------------------
/doc/content/quickstart.md:
--------------------------------------------------------------------------------
1 | {
2 | title = 'Quickstart Guide',
3 | title_short = 'Quickstart',
4 | weight = 2,
5 | }
6 |
7 | ## Installing Lift
8 |
9 | Please use [LuaRocks] to install:
10 |
11 | ~~~console
12 | $ luarocks install lift
13 | ~~~
14 |
15 | ### Prerequisites
16 | - **OS:** Linux, OSX, Windows or another OS supported by [libuv].
17 | - **Lua:** Lua 5.2, Lua 5.3, LuaJIT 2.0 or LuaJIT 2.1
18 | - **Libraries:** [LPeg] and [luv] (automatically compiled by LuaRocks)
19 |
20 | **Note:** LuaRocks uses [CMake] to build [luv]. If you have CMake installed and still get build errors, please [create an issue on GitHub](https://github.com/tbastos/lift/issues) with as much information as possible about the error.
21 |
22 | ## Sample Liftfile.lua (project-specific build script)
23 |
24 | Create a file named `Liftfile.lua` in your project's root directory:
25 |
26 | ~~~lua
27 | local fs = require 'lift.fs'
28 | local task = require 'lift.task'
29 | local config = require 'lift.config'
30 | local request = require 'lift.request'
31 |
32 | local function download(file_url)
33 | print('Downloading '..file_url)
34 | local filename = file_url:match('/([^/]+)$')
35 | request(file_url):pipe(fs.write_to(filename)):wait_finish()
36 | return filename
37 | end
38 |
39 | function task.greet() -- executed once, despite being called multiple times
40 | print('Hello '..(config.USER or 'unknown')..'!')
41 | end
42 |
43 | function task.download_lua()
44 | task.greet()
45 | print('Saved '..download('http://www.lua.org/ftp/lua-5.3.2.tar.gz'))
46 | end
47 |
48 | function task.download_luarocks()
49 | task.greet()
50 | print('Saved '..download('https://github.com/keplerproject/luarocks/archive/v2.3.0.tar.gz'))
51 | end
52 |
53 | function task.default()
54 | task.greet()
55 | task{task.download_lua, task.download_luarocks}() -- these tasks run in parallel
56 | print('Done!')
57 | end
58 |
59 | function task.clean()
60 | for path in fs.glob('*.tar.gz') do
61 | print('Deleting '..path)
62 | fs.unlink(path)
63 | end
64 | end
65 | ~~~
66 |
67 | Calling `lift` from any project dir will produce:
68 |
69 | ~~~console
70 | $ lift
71 | Hello tbastos!
72 | Downloading http://www.lua.org/ftp/lua-5.3.2.tar.gz
73 | Downloading https://github.com/keplerproject/luarocks/archive/v2.3.0.tar.gz
74 | Saved lua-5.3.2.tar.gz
75 | Saved v2.3.0.tar.gz
76 | Done!
77 |
78 | $ lift clean
79 | Deleting /Users/tbastos/Work/lift/examples/downloads/lua-5.3.2.tar.gz
80 | Deleting /Users/tbastos/Work/lift/examples/downloads/v2.3.0.tar.gz
81 |
82 | $ lift download_lua
83 | Hello tbastos!
84 | Downloading http://www.lua.org/ftp/lua-5.3.2.tar.gz
85 | Saved lua-5.3.2.tar.gz
86 |
87 | $ lift clean greet
88 | Hello tbastos!
89 | Deleting /Users/tbastos/Work/lift/examples/downloads/lua-5.3.2.tar.gz
90 | ~~~
91 |
92 | To plot a graph of task calls use (requires graphviz):
93 | ~~~console
94 | $ lift task run --plot graph.svg
95 | ~~~
96 |
97 | 
98 |
99 | For debugging purposes you may want to run `lift` with tracing enabled:
100 |
101 | ~~~console
102 | $ lift --trace
103 | [cli] running root command
104 | [task] running task list {default} (nil)
105 | [thread] async(function) started
106 | [task] running greet (nil)
107 | [thread] async(function) started
108 | Hello tbastos!
109 | [thread] async(function) ended with true {}
110 | [task] finished greet (nil) [0.00s]
111 | [task] running task list {download_lua, download_luarocks} (nil)
112 | ... redacted for length ...
113 | [task] finished task list {download_lua, download_luarocks} (nil) [4.87s]
114 | Done!
115 | [thread] async(function) ended with true {}
116 | [task] finished task list {default} (nil) [4.87s]
117 | [cli] finished root command [4.87s]
118 | [thread] async(function) ended with true {}
119 | Total time 4.87s, memory 603K
120 | ~~~
121 |
122 | [CMake]: http://www.cmake.org/
123 | [libuv]: http://libuv.org/
124 | [luv]: https://github.com/luvit/luv
125 | [LPeg]: http://www.inf.puc-rio.br/~roberto/lpeg/
126 | [Lua]: http://www.lua.org/
127 | [LuaRocks]: http://www.luarocks.org/
128 |
--------------------------------------------------------------------------------
/doc/doc_vars.lua:
--------------------------------------------------------------------------------
1 | local path = require 'lift.path'
2 |
3 | local v = ... -- table of vars that is passed to templates
4 |
5 | ------------------------------------------------------------------------------
6 | -- Global Variables
7 | ------------------------------------------------------------------------------
8 |
9 | v.site.title = 'Lift'
10 | v.site.subtitle = 'Lua automation tool and scripting framework'
11 |
12 | v.github_url = 'https://github.com/tbastos/lift'
13 | v.luarocks_url = 'https://luarocks.org/modules/tbastos/lift'
14 | v.base_edit_url = 'https://github.com/tbastos/lift/edit/master/doc/content'
15 |
16 | -- organize content into sections
17 | v.sections = {
18 | -- list of section ids (sets the order)
19 | '/', '/api',
20 | -- mapping of ids to section data
21 | ['/'] = {title='Documentation', title_short='Documentation'},
22 | ['/api'] = {title='API Reference', title_short='API Reference'},
23 | }
24 |
25 | ------------------------------------------------------------------------------
26 | -- Helper Methods
27 | ------------------------------------------------------------------------------
28 |
29 | function v.to_file(abs_url)
30 | return path.rel(path.dir(v.page.url), abs_url)
31 | end
32 |
33 | function v.to_page(page_id)
34 | return v.to_file(page_id..'.html')
35 | end
36 |
37 |
--------------------------------------------------------------------------------
/doc/static/CNAME:
--------------------------------------------------------------------------------
1 | lift.run
2 | www.lift.run
3 |
--------------------------------------------------------------------------------
/doc/static/js/main.js:
--------------------------------------------------------------------------------
1 | /*
2 | * Replace all SVG images with inline SVG
3 | */
4 | jQuery('img.svg').each(function(){
5 | var $img = jQuery(this);
6 | var imgID = $img.attr('id');
7 | var imgClass = $img.attr('class');
8 | var imgURL = $img.attr('src');
9 | jQuery.get(imgURL, function(data) {
10 | // Get the SVG tag, ignore the rest
11 | var $svg = jQuery(data).find('svg');
12 | // Add replaced image's ID to the new SVG
13 | if(typeof imgID !== 'undefined') {
14 | $svg = $svg.attr('id', imgID);
15 | }
16 | // Add replaced image's classes to the new SVG
17 | if(typeof imgClass !== 'undefined') {
18 | $svg = $svg.attr('class', imgClass+' replaced-svg');
19 | }
20 | // Remove any invalid XML tags as per http://validator.w3.org
21 | $svg = $svg.removeAttr('xmlns:a');
22 | // Replace image with new SVG
23 | $img.replaceWith($svg);
24 | }, 'xml');
25 | });
26 |
--------------------------------------------------------------------------------
/doc/static/js/prism.js:
--------------------------------------------------------------------------------
1 | /* http://prismjs.com/download.html?themes=prism-solarizedlight&languages=lua&plugins=show-language+command-line */
2 | var _self="undefined"!=typeof window?window:"undefined"!=typeof WorkerGlobalScope&&self instanceof WorkerGlobalScope?self:{},Prism=function(){var e=/\blang(?:uage)?-(\w+)\b/i,t=0,n=_self.Prism={util:{encode:function(e){return e instanceof a?new a(e.type,n.util.encode(e.content),e.alias):"Array"===n.util.type(e)?e.map(n.util.encode):e.replace(/&/g,"&").replace(/e.length)break e;if(!(d instanceof a)){u.lastIndex=0;var m=u.exec(d);if(m){g&&(f=m[1].length);var y=m.index-1+f,m=m[0].slice(f),v=m.length,b=y+v,k=d.slice(0,y+1),w=d.slice(b+1),_=[p,1];k&&_.push(k);var P=new a(i,c?n.tokenize(m,c):m,h);_.push(P),w&&_.push(w),Array.prototype.splice.apply(r,_)}}}}}return r},hooks:{all:{},add:function(e,t){var a=n.hooks.all;a[e]=a[e]||[],a[e].push(t)},run:function(e,t){var a=n.hooks.all[e];if(a&&a.length)for(var r,l=0;r=a[l++];)r(t)}}},a=n.Token=function(e,t,n){this.type=e,this.content=t,this.alias=n};if(a.stringify=function(e,t,r){if("string"==typeof e)return e;if("Array"===n.util.type(e))return e.map(function(n){return a.stringify(n,t,e)}).join("");var l={type:e.type,content:a.stringify(e.content,t,r),tag:"span",classes:["token",e.type],attributes:{},language:t,parent:r};if("comment"==l.type&&(l.attributes.spellcheck="true"),e.alias){var i="Array"===n.util.type(e.alias)?e.alias:[e.alias];Array.prototype.push.apply(l.classes,i)}n.hooks.run("wrap",l);var o="";for(var s in l.attributes)o+=(o?" ":"")+s+'="'+(l.attributes[s]||"")+'"';return"<"+l.tag+' class="'+l.classes.join(" ")+'" '+o+">"+l.content+""},!_self.document)return _self.addEventListener?(_self.addEventListener("message",function(e){var t=JSON.parse(e.data),a=t.language,r=t.code,l=t.immediateClose;_self.postMessage(n.highlight(r,n.languages[a],a)),l&&_self.close()},!1),_self.Prism):_self.Prism;var r=document.currentScript||[].slice.call(document.getElementsByTagName("script")).pop();return r&&(n.filename=r.src,document.addEventListener&&!r.hasAttribute("data-manual")&&document.addEventListener("DOMContentLoaded",n.highlightAll)),_self.Prism}();"undefined"!=typeof module&&module.exports&&(module.exports=Prism),"undefined"!=typeof global&&(global.Prism=Prism);
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4 | !function(){"undefined"!=typeof self&&self.Prism&&self.document&&Prism.hooks.add("complete",function(e){if(e.code){var t=e.element.parentNode,a=/\s*\bcommand-line\b\s*/;if(t&&/pre/i.test(t.nodeName)&&(a.test(t.className)||a.test(e.element.className))&&!e.element.querySelector(".command-line-prompt")){a.test(e.element.className)&&(e.element.className=e.element.className.replace(a,"")),a.test(t.className)||(t.className+=" command-line");var n=new Array(1+e.code.split("\n").length),s=t.getAttribute("data-prompt")||"";if(""!==s)n=n.join('');else{var r=t.getAttribute("data-user")||"user",l=t.getAttribute("data-host")||"localhost";n=n.join('')}var m=document.createElement("span");m.className="command-line-prompt",m.innerHTML=n;var o=t.getAttribute("data-output")||"";o=o.split(",");for(var i=0;i