---

layout: post

title: "Composer knows the path of class file"

date: 2015-06-08 23:00:00

tags: vim, php, composer, sensorario

category: plugin

author: sensorario

author_link: https://sensorario.github.io

summary: Open class file witouht pass throuw ctag

---

<p>I work with vi since late 2014. Starting from that date, I've learned different ways to work with this amazing and customizable editor. Since few weeks ago, I always worked with CtrlP to search a file. But, ... why type everytime class name for CtrlP instead of "grep" directly to composer's auto-generated files? But grep all times is a slow process so, ... why dont write a Vim script that do this stuff for me? Yeah! After this assumtions and after creation of a funciton I also discovered vim-composer plugin. So, ... I decided to share this function with the community. I hope you like that idea.</p>

<p>And now, ... step by steps all the parts related to the function I've added to vim-composer. If you like, you can simply <a href="https://github.com/vim-php/vim-composer/commit/117279627adf9dfc4bd44c0b01c1f19580de609b">go to the commit</a> and just see the code.</p>

<h2>Grep composer to find the path</h2>

<p>First of all, I started to grep a class name in composer folder:</p>

{% highlight bash %}

grep ParticularClassName ./vendor/composer -R | awk '{print $6}' | awk -F\\' '{print $2}'

{% endhighlight %}

<p>This kind of instruction returns a path like <em>/src/Path/To/ParticularClassName.php</em>. And this, .. answer to the question, ... where is ParticularClassName located??</p>

<h2>Keep bash output inside a VimL variable</h2>

<p>Asking to stackoverflow, ... I discovered the way to <strong>capture bash output inside a variable</strong>:</p>

{% highlight bash %}

let l:fileName = system(l:command)

{% endhighlight %}

<p>This is amazing for me: I know bash better than Vim. I can leave to bash a lot of stuffs, and just execute little funcion in VimL.</p>

<h2>Open new tab form VimL</h2>

<p>Finally, I can open in new tab the result.</p>

{% highlight vim %}

let l:fileName = system(l:command)

let l:openFileCommand = 'tabe .' . l:fileName

exec l:openFileCommand

{% endhighlight %}

<p>My contribute to this <a href="https://github.com/vim-php/vim-composer">vim-composer</a> plugin is a way to open faslty a file, when we want open it. The principle is "when I see a class name, I want to open source file of that class, and I want ask this to composer".</p>

<hr />

<h2>Make plugin useful for custom improvements</h2>

<p>vim-composer is a specific plugin for composer. This must work even if developers has CtrlP, ctags or other plugin. And also, this plugin can help developers and/or others plugins. For example I work with CtrlP. Someone not (I cant believe but is possible). Someone works with ctags. Probably exists others plugin. I dont care. My contribute aims to help every kind of improvements. With my last pull request. I suggest an intresting improvement. The function "g:ComposerKnowWhereCurrentFileIs()" define some global variables if o or more instance of current word are find in composer aut-generated files. With this improvements developers can create, for example, a map that execute ComposerKnowWhereCurrentFileIs. If the function found one file, will open it. If not, .. CtrlP could be executed with this trick:</p>

{% highlight php %}

nnoremap <F6>call s:ComposerOrCtrlP()

function! s:SendCurrentWorldToCtrlP()

exec "normal \<c-p>" . g:currentWord

endfunction

function! s:ComposerOrCtrlP()

call g:ComposerKnowWhereCurrentFileIs()

if g:numberOfResults > 1

call s:SendCurrentWorldToCtrlP()

endif

endfunction

{% endhighlight %}