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141 lines
3.8 KiB
Markdown
141 lines
3.8 KiB
Markdown
# enry [](https://godoc.org/gopkg.in/src-d/enry.v1) [](https://travis-ci.org/src-d/enry) [](https://codecov.io/gh/src-d/enry)
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File programming language detector and toolbox to ignore binary or vendored files. *enry*, started as a port to _Go_ of the original [linguist](https://github.com/github/linguist) _Ruby_ library, that has an improved *performance of 100x*.
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Installation
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------------
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The recommended way to install simple-linguist
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```
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go get gopkg.in/src-d/enry.v1/...
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```
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To build enry's CLI you must run
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make build-cli
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it generates a binary in the project's root directory called `enry`. You can move this binary to anywhere in your `PATH`.
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Examples
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--------
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```go
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lang, safe := enry.GetLanguageByExtension("foo.go")
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fmt.Println(lang)
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// result: Go
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lang, safe := enry.GetLanguageByContent("foo.m", "<matlab-code>")
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fmt.Println(lang)
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// result: Matlab
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lang, safe := enry.GetLanguageByContent("bar.m", "<objective-c-code>")
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fmt.Println(lang)
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// result: Objective-C
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// all strategies together
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lang := enry.GetLanguage("foo.cpp", "<cpp-code>")
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```
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Note the returned boolean value "safe" is set either to true, if there is only one possible language detected or, to false otherwise.
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To get a list of possible languages for a given file, you can use the plural version of the detecting functions.
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```go
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langs := enry.GetLanguages("foo.h", "<cpp-code>")
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// result: []string{"C++", "C"}
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langs := enry.GetLanguagesByExtension("foo.asc", "<content>", nil)
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// result: []string{"AGS Script", "AsciiDoc", "Public Key"}
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langs := enry.GetLanguagesByFilename("Gemfile", "<content>", []string{})
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// result: []string{"Ruby"}
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```
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CLI
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-----------------
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You can use enry as a command,
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```bash
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$ enry --help
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enry, A simple (and faster) implementation of github/linguist
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usage: enry <path>
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enry <path> [--json] [--breakdown]
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enry [--json] [--breakdown]
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```
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and it will return an output similar to *linguist*'s output,
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```bash
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$ enry
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11.11% Gnuplot
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22.22% Ruby
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55.56% Shell
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11.11% Go
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```
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but not only the output, also its flags are the same as *linguist*'s ones,
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```bash
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$ enry --breakdown
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11.11% Gnuplot
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22.22% Ruby
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55.56% Shell
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11.11% Go
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Gnuplot
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plot-histogram.gp
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Ruby
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linguist-samples.rb
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linguist-total.rb
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Shell
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parse.sh
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plot-histogram.sh
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run-benchmark.sh
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run-slow-benchmark.sh
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run.sh
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Go
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parser/main.go
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```
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even the JSON flag,
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```bash
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$ enry --json
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{"Gnuplot":["plot-histogram.gp"],"Go":["parser/main.go"],"Ruby":["linguist-samples.rb","linguist-total.rb"],"Shell":["parse.sh","plot-histogram.sh","run-benchmark.sh","run-slow-benchmark.sh","run.sh"]}
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```
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Note that even if enry's CLI is compatible with linguist's, its main point is that, contrary to linguist, **_enry doesn't need a git repository to work!_**
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Development
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-----------
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*enry* re-uses parts of original [linguist](https://github.com/github/linguist) especially data in `languages.yml` to generate internal data structures. In oreder to update to latest upstream run
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make clean code-generate
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To run the tests
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make test
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Why Enry?
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---------
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In the movie [My Fair Lady](https://en.wikipedia.org/wiki/My_Fair_Lady), [Professor Henry Higgins](http://www.imdb.com/character/ch0011719/?ref_=tt_cl_t2) is one of the main characters. Henry is a linguist and at the very beginning of the movie enjoys guessing the nationality of people based on their accent.
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`Enry Iggins` is how [Eliza Doolittle](http://www.imdb.com/character/ch0011720/?ref_=tt_cl_t1), [pronounces](https://www.youtube.com/watch?v=pwNKyTktDIE) the name of the Professor during the first half of the movie.
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License
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-------
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MIT, see [LICENSE](LICENSE)
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