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变化太少 - 一种发现各种语言代码重复的工具

目的

代码重复很难在许多文件中跟踪。有像CPD（来自 PMD）这样的工具做得很好，但它们需要 JAVA（甚至一些更晦涩的语言）才能运行。所以我决定写一个小工具，它使用Pygments和 python difflib来捕获尽可能多的语言的代码重复

要求

• 蟒蛇3
• Pygments

安装

派皮

简单地运行

pip3 install tlv

从源头

• 通过运行安装所需的要求pip3 install Pygments
• git clone 这个仓库
• cd 到 <克隆文件夹>
• 跑sudo ./build.sh

用法

usage: tlv [-h] [--minlines MINLINES] [--mintoken MINTOKEN] [-j JOBS]
           [--lexer {...}]
           [--wildcard_token {...}]
           [--verbose] [--nodetails]
           files [files ...]

Find code duplications across various languages
positional arguments:
  files                 Files to parse

optional arguments:
  -h, --help            show this help message and exit
  --minlines MINLINES   Minimum length of block in lines before reporting
  --mintoken MINTOKEN   Minimum length of block in token before reporting
  -j JOBS, --jobs JOBS  Number of jobs to run in parallel
  --lexer {3d,aap,actionscript,actionscript3,ada,ada2005,ada95,adl,agda,ahk,al,alloy,amienttalk,amienttalk/2,ampl,an,antlr,antlr-actionscript,antlr-as,antlr-c#,antlr-cpp,antlr-csharp,antlr-java,antlr-perl,antlr-python,antlr-r,antlr-ruy,apachecon,apl,applescript,arduino,arexx,as,as3,asemake,asic,asm,aspectj,aspx-cs,asy,asymptote,at,atch,augeas,autohotkey,autoit,awk,c,c#,c++,c++-ojdum,c-ojdump,ca65,cadl,camkes,capdl,capnp,casic,ceylon,chai,chaiscript,chapel,charmci,cheetah,chpl,cirru,cl,clay,clean,clj,cljs,clojure,clojurescript,cmake,cmas,co,code,common-lisp,componentpascal,console,control,cool,coq,cp,cpp,cpp-ojdump,cpsa,cr,crmsh,croc,cry,cryptol,crystal,csh,csharp,csound,csound-csd,csound-document,csound-orc,csound-sco,csound-score,css,css+django,css+er,css+genshi,css+genshitext,css+jinja,css+lasso,css+mako,css+mozpreproc,css+php,css+ruy,css+smarty,cu,cucumer,cuda,cxx-ojdump,cypher,cython,d,d-ojdump,dart,dasm16,decontrol,delphi,desources,dg,di,django,do,docker,dosatch,doscon,dpatch,dtd,duy,dylan,dylan-console,dylan-lid,dylan-repl,e,earl-grey,earlgrey,easytrieve,ec,ecl,eg,ei,elisp,elixir,elm,emacs,emacs-lisp,en,er,erl,erlang,evoque,ex,exs,extempore,ezhil,gap,gas,gawk,genshi,genshitext,gherkin,glsl,gnuplot,go,golo,gooddata-cl,gosu,gro,groovy,gst,haml,handlears,haskell,haxe,haxeml,hexdump,hlsl,hs,hsa,hsail,hspec,html,html+cheetah,html+django,html+er,html+evoque,html+genshi,html+handlears,html+jinja,html+kid,html+lasso,html+mako,html+myghty,html+ng2,html+php,html+ruy,html+smarty,html+spit,html+twig,htmldjango,http,hx,hxml,hxsl,hylang,i,i6t,idl,idl4,idr,idris,iex,igor,igorpro,ik,in,ini,io,ioke,ir,irc,isaelle,itex,j,jade,jags,jasmin,jasminxt,java,javascript,javascript+cheetah,javascript+django,javascript+er,javascript+genshi,javascript+genshitext,javascript+jinja,javascript+lasso,javascript+mako,javascript+myghty,javascript+php,javascript+ruy,javascript+smarty,jcl,jinja,jl,jlcon,jproperties,js,js+cheetah,js+django,js+er,js+genshi,js+genshitext,js+jinja,js+lasso,js+mako,js+myghty,js+php,js+ruy,js+smarty,js+spit,jsg,json,json-ld,json-oject,jsonld,jsp,julia,juttle,kal,kcon,kid,koka,kotlin,lagda,lasso,lassoscript,lcry,lcryptol,lean,less,lhaskell,lhs,lid,lidr,lidris,lighttpd,lighty,limo,liquid,lisp,literate-agda,literate-cryptol,literate-haskell,literate-idris,litzasic,litzmax,live-script,livescript,llvm,logos,logtalk,lua,m2,make,make,mako,maql,mask,mason,mathematica,matla,matlasession,mawk,max,md,minid,mma,modelica,modula2,moin,monkey,monte,moo,moocode,moon,moonscript,mq4,mq5,mql,mql4,mql5,msc,mscgen,mupad,mxml,myghty,mysql,n,nasm,nawk,ncl,nesc,newlisp,newspeak,ng2,nginx,nim,nimrod,nit,nix,nixos,nn,nsh,nsi,nsis,numpy,nusmv,oa,ocaml,octave,odin,oj-c,oj-c++,oj-j,ojc,ojc++,ojdump,ojdump-nasm,ojective-c,ojective-c++,ojective-j,ojectivec,ojectivec++,ojectivej,ojectpascal,ojj,oo,ooc,oogie,opa,openedge,openugs,pacmancon,pan,parasail,pas,pascal,pawn,pcmk,perl,perl6,php,php3,php4,php5,pig,pike,pkgcon,pl,pl6,plpgsql,plus,po,posh,postgres,postgres-console,postgresql,postgresql-console,postscr,postscript,pot,pov,powershell,praat,progress,prolog,properties,protou,ps1,ps1con,psm1,psql,pug,puppet,py,py3,py3t,pycon,pypy,pypylog,pyrex,pyt,python,python3,pyx,qasic,qml,qs,qvt,qvto,r,racket,ragel,ragel-c,ragel-cpp,ragel-d,ragel-em,ragel-java,ragel-ojc,ragel-r,ragel-ruy,rain,raw,rcon,rd,red,red/system,redcode,registry,reol,resource,resourceundle,rexx,rhtml,rkt,rnc,rng-compact,ro,roocon,root,rql,rs,rsl,rts,rust,ruy,s,sage,salt,sarl,sas,sass,satch,sc,scala,scaml,scheme,scila,scm,scss,shell-session,silver,slash,slim,sls,slurm,smali,smalltalk,smarty,sml,snool,sources.list,sourceslist,sp,sparql,spec,spit,splus,sql,sqlite3,squeak,squidcon,st,st-pytex,stan,stata,supercollider,sv,swi,swig,systemverilog,t-sql,tads3,tap,tasm,tcl,tcsh,tcshcon,tea,teraterm,teratermmacro,termcap,termin,terra,thri,todotxt,toml,tra,trac-wiki,treetop,ts,tsql,ttl,turtle,twig,typescript,typoscript,typoscriptcssdata,typoscripthtmldata,ucode,ugs,unicon,uriscript,v.net,vala,vapi,vcl,vclsnippet,vclsnippets,vctreestatus,velocity,vgl,vhdl,vim,vnet,vscript,wdi,whiley,winatch,winugs,x10,xml,xml+cheetah,xml+django,xml+er,xml+evoque,xml+genshi,xml+jinja,xml+kid,xml+lasso,xml+mako,xml+myghty,xml+php,xml+ruy,xml+smarty,xml+spit,xorg,xq,xql,xqm,xquery,xqy,xten,xtend,yaml,yaml+jinja}
                        Manually set a lexer to use on all files
  --wildcard_token {Token.Keyword,Token.Keyword.Constant,Token.Keyword.Declaration,Token.Keyword.Namespace,Token.Keyword.Pseudo,Token.Keyword.Reserved,Token.Keyword.Type,Token.Name,Token.Name.Attribute,Token.Name.Builtin,Token.Name.Builtin.Pseudo,Token.Name.Class,Token.Name.Constant,Token.Name.Decorator,Token.Name.Entity,Token.Name.Exception,Token.Name.Function,Token.Name.Function.Magic,Token.Name.Label,Token.Name.Namespace,Token.Name.Other,Token.Name.Tag,Token.Name.Variable,Token.Name.Variable.Class,Token.Name.Variable.Global,Token.Name.Variable.Instance,Token.Name.Variable.Magic,Token.Literal,Token.Literal.Date,Token.Literal.String,Token.Literal.String.Affix,Token.Literal.String.Backtick,Token.Literal.String.Char,Token.Literal.String.Delimiter,Token.Literal.String.Doc,Token.Literal.String.Double,Token.Literal.String.Escape,Token.Literal.String.Heredoc,Token.Literal.String.Interpol,Token.Literal.String.Other,Token.Literal.String.Regex,Token.Literal.String.Single,Token.Literal.String.Symbol,Token.Literal.Number,Token.Literal.Number.Bin,Token.Literal.Number.Float,Token.Literal.Number.Hex,Token.Literal.Number.Integer,Token.Literal.Number.Integer.Long,Token.Literal.Number.Oct,Token.Operator,Token.Operator.Word,Token.Punctuation,Token.Comment,Token.Comment.Hashbang,Token.Comment.Multiline,Token.Comment.Preproc,Token.Comment.Single,Token.Comment.Special,Token.Generic,Token.Generic.Deleted,Token.Generic.Emph,Token.Generic.Error,Token.Generic.Heading,Token.Generic.Inserted,Token.Generic.Output,Token.Generic.Prompt,Token.Generic.Strong,Token.Generic.Subheading,Token.Generic.Traceback,Token.Text.Whitespace}
                        Token types that are threated as wildcards (actual
                        value doesn't matter)
  --verbose             Verbose output
  --nodetails           Dump the details of a finding

默认情况下，工具通过文件名猜测内容类型，如果这对您不起作用，请参见下文

指定词法分析器

您可以通过运行带有--lexer=选项的工具来使用特定的词法分析器。执行此操作时，所有输入文件都由指定的词法分析器处理，您必须确保所有传递的文件都属于指定文件，否则结果可能是虚假的。

输出

输出将被写入标准输出。有 2 种可能的结果类型

• 重复 - 代码完全相同
• TooLessVariation - 代码是相同的，当删除由 --wildcard_token 指定的所有令牌类型时

输出示例

/someplace/busybox/modutils/modutils.c:9:0:[TooLessVariation]:Block till 16:0 is nearly the same as in ../modprobe-small.c from 29:0 till 36:0
>>> #include <sys/syscall.h>
>>> 
>>> #define init_module(mod, len, opts) syscall(__NR_init_module, mod, len, opts)
>>> #if defined(__NR_finit_module)
>>> # define finit_module(fd, uargs, flags) syscall(__NR_finit_module, fd, uargs, flags)
>>> #endif
>>> #define delete_module(mod, flags) syscall(__NR_delete_module, mod, flags)
>>> 
<<<
>>> #include <sys/syscall.h>
>>> 
>>> #define init_module(mod, len, opts) syscall(__NR_init_module, mod, len, opts)
>>> #define delete_module(mod, flags) syscall(__NR_delete_module, mod, flags)
>>> #ifdef __NR_finit_module
>>> # define finit_module(fd, uargs, flags) syscall(__NR_finit_module, fd, uargs, flags)
>>> #endif
>>> 
<<<
/someplace/busybox/modutils/modutils.c:165:32:[Duplicate]:Block till 169:3 is the same as in ../modprobe-small.c from 324:18 till 327:0
>>> 
>>> 	fstat(fd, &st);
>>> 	image = NULL;
>>> 	/* st.st_size is off_t, we can't just pass it to mmap */
>>> 	if
<<<
/someplace/busybox/modutils/modprobe-small.c:236:15:[Duplicate]:Block till 240:10 is the same as in ../modutils.c from 265:26 till 269:10
>>> 
>>> 	case ENOEXEC:
>>> 		return "invalid module format";
>>> 	case ENOENT:
>>> 		return "
<<<
/someplace/busybox/modutils/modutils.c:115:0:[Duplicate]:Block till 130:43 is the same as in ../modprobe-small.c from 177:0 till 194:36
>>> 
>>> #if ENABLE_FEATURE_CMDLINE_MODULE_OPTIONS
>>> char* FAST_FUNC parse_cmdline_module_options(char **argv, int quote_spaces)
>>> {
>>> 	char *options;
>>> 	int optlen;
>>> 
>>> 	options = xzalloc(1);
>>> 	optlen = 0;
>>> 	while (*++argv) {
>>> 		const char *fmt;
>>> 		const char *var;
>>> 		const char *val;
>>> 
>>> 		var = *argv;
>>> 		options = xrealloc(options, optlen + 2 + 
<<<

如果您不想查看代码本身，请传递--nodetails选项

进一步阅读

• Pygments

错误与贡献

随意创建问题或拉取请求