tools: Added pandoc_epub for epub files.

README.md

@@ -21,7 +21,7 @@ then to run:
 
     # vigil <directory_path>
 
-### Tools (49 in total)
+### Tools (50 in total)
 
 Extensions | Tools
 ---------- | -----
@@ -45,3 +45,4 @@ Extensions | Tools
 .go | [gofmt](https://golang.org) • [go_vet](https://golang.org) • [golint](https://github.com/golang/lint) • [godoc](http://golang.org/x/tools)
 .yaml .yml | [yamllint](https://github.com/adrienverge/yamllint)
 .md | [pandoc_md](https://pandoc.org/)
+.epub | [pandoc_epub](https://pandoc.org/)

vigil/tools.toml

@@ -22,7 +22,8 @@ tools_for_extensions = [
    [["bash", "sh", "dash", "ksh"], ["shellcheck"]],
    [["go"], ["gofmt", "go_vet", "golint", "godoc"]],
    [["yaml", "yml"], ["yamllint"]],
-   [["md"], ["pandoc_md"]]]
+   [["md"], ["pandoc_md"]],
+   [["epub"], ["pandoc_epub"]]]
 
 
 # Tool template:
@@ -146,3 +147,9 @@ tools_for_extensions = [
   url = "pandoc"
   command = "pandoc -f markdown -t plain"
   success_status = "normal"
+
+[pandoc_epub]
+  dependencies = ["pandoc"]
+  url = "pandoc"
+  command = "pandoc -f epub -t plain"
+  success_status = "normal"