`wand` : Retrieve 'Magic' Attributes from Files and Directories

The `libmagic` library must be installed and available to use this. The package should also be pretty straightforward to get working on Windows. Assistance to do that is welcome.

The following functions are implemented:

-   `incant` : returns the "magic" metadata of the files in the input vector (as a data frame)

The following data sets are included:

-   (eventually will be an internal mime types db)

### Installation

``` r
devtools::install_github("hrbrmstr/wand")
```

### Usage

``` r
library(wand)
library(magrittr)
library(dplyr)

system.file("img", package="wand") %>% 
  list.files(full.names=TRUE) %>% 
  incant() %>% 
  glimpse()
```

    ## Observations: 10
    ## Variables: 5
    ## $ file        <chr> "/Library/Frameworks/R.framework/Versions/3.3/Resources/library/wand/img/example_dir", "/Librar...
    ## $ mime_type   <chr> "inode/directory", "text/x-c", "text/html", "text/plain", "text/rtf", "image/jpeg", "applicatio...
    ## $ encoding    <chr> "binary", "us-ascii", "us-ascii", "us-ascii", "us-ascii", "binary", "binary", "binary", "us-asc...
    ## $ extensions  <chr> NA, "???", "???", "???", "???", "jpeg/jpg/jpe/jfif", "???", "???", "???", "???"
    ## $ description <chr> "directory", "C source, ASCII text", "HTML document, ASCII text, with CRLF line terminators", "...

``` r
# current verison
packageVersion("wand")
```

    ## [1] '0.1.0'

### Test Results

``` r
library(wand)
library(testthat)

date()
```

    ## [1] "Fri Aug 12 21:41:40 2016"

``` r
test_dir("tests/")
```

    ## testthat results ========================================================================================================
    ## OK: 0 SKIPPED: 0 FAILED: 0
    ## 
    ## DONE ===================================================================================================================