~kungtotte/dtt: Switch from docopt to argparse

76f8b580ce6dc534bc9a02b76e3367cf514a1804 — Thomas Landin a month ago f851115

Switch from docopt to argparse

docopt 0.6.8 had several issues compiling under --gc:arc and I don't
want to spend a whole bunch of time fixing issues in my dependencies.
argparse seems like the best alternative in that it compiles fine with
ARC and also makes for some decently clean code.

The one issue is you can't have empty strings as the default value so we
work around that by defaulting [dir] to "nil".

patch browse

2 files changed, 24 insertions(+), 22 deletions(-)

M dtt.nimble
M src/dtt.nim

M dtt.nimble => dtt.nimble +1 -0

@@ 13,6 13,7 @@ binDir        = "bin"
 # Dependencies
 
 requires "nim >= 1.0.4"
+requires "argparse"
 requires "https://github.com/soasme/nim-markdown >= 0.8"
 requires "https://github.com/docopt/docopt.nim >= 0.6"
 requires "https://github.com/soasme/nim-mustache >= 0.2"

M src/dtt.nim => src/dtt.nim +23 -22

@@ 3,6 3,7 @@ import unicode, algorithm
 
 import docopt
 import mustache
+import argparse
 
 import tmpl
 import utils


@@ 32,7 33,7 @@ type
     tmpl: string
     title: string
 
-proc initCmd(dir: string, force: bool = false) =
+proc init(force: bool = false, dir: string) =
   let wd = if dir == "nil": getCurrentDir() else: getCurrentDir() / dir
   if not existsDir(wd):
     createDir(wd)


@@ 75,7 76,7 @@ proc initCmd(dir: string, force: bool = false) =
   writeFile(wd / output_dir / css_dir / "style.css", tmpl.style)
   setFilePermissions(wd / output_dir / css_dir / "style.css", outFilePerms)
 
-proc buildCmd(posts_per_page: int = 5) =
+proc build(posts_per_page: int = 5) =
   var working_dir: string
   try:
     working_dir = findBaseDir(os.getCurrentDir())


@@ 137,29 138,29 @@ proc buildCmd(posts_per_page: int = 5) =
       output_file = page.out_path / page.filename
     writeFile(output_file, rendered)
 
-let doc = """
-
-dtt (Do The Thing)
-
+const doc = """
 An extremely straight-forward static site generator that will convert
 Markdown files into html and publish them along with any static content
 (images, CSS, html files, etc.) to an output dir to be served as static
 content from any host.
-
-usage:
-  dtt init [options] [DIR]
-  dtt build [options] [POSTS]
-
-Options:
-  -f --force  Force init to overwrite existing files (if any)
-  -h --help   Show this screen.
-  --version   Show version.
 """
-when isMainModule:
-  let args = docopt(doc, version=fmt"{bin} {version}")
 
-  if args["init"]:
-    initCmd($args["DIR"], args["--force"])
-  elif args["build"]:
-    let posts = if args["POSTS"].kind == vkNone: 5 else: parseInt($args["POSTS"])
-    buildCmd(posts)
+when isMainModule:
+  var argp = newParser(bin):
+    help(doc)
+    flag("-v", "--version")
+    run:
+      if opts.version:
+        echo fmt"{bin} {version}"
+    command("init"):
+      help("Initialize a dtt project in the current directory, or [dir] if passed.")
+      arg("dir", default="nil")
+      flag("-f", "--force")
+      run:
+        init(opts.force, opts.dir)
+    command("build"):
+      help("Construct the site inside the ./output/ directory.")
+      arg("posts", default="5")
+      run:
+        build(opts.posts.parseInt)
+  argp.run(commandLineParams())