prompt: You will be provided with a partial code base and an issue statement explaining a problem to resolve.
  <issue>
  Current HEAD zsh-completion.py needs option_aliases update
  **Small description**
  
  `option_aliases` was removed in ce497f444db6d2f3fc0b8309f5ca839196c33c8b but is still referred to in the zsh completion code.
  
  https://github.com/saulpw/visidata/blob/34808745232e798b0f25e893bb444fc9f3c034eb/dev/zsh-completion.py#L11C41-L11C41
  
  I think the script needs a slight rejig to use the (present) `vd` import instead.
  
  I wonder whether this can be included in future CI?
  
  **Expected result**
  
  The command succeeds.
  
  **Actual result**
  
  ```
         > /build/visidata-src
         > Traceback (most recent call last):
         >   File "/build/visidata-src/dev/zsh-completion.py", line 11, in <module>
         >     from visidata.main import option_aliases
         > ImportError: cannot import name 'option_aliases' from 'visidata.main' (/build/visidata-src/visidata/main.py)
  ```
  
  **Steps to reproduce**
  
  ```
  python dev/zsh-completion.py
  ```
  
  **Additional context**
  ~~Please include the version of VisiData and Python.~~
  
  https://github.com/saulpw/visidata/tree/34808745232e798b0f25e893bb444fc9f3c034eb but I listed the commit above that causes the breakage — I suspect this is a two minute fix for somebody familiar with the codebase, though not me. I can help with extending CI, though it might just be a case of adding
  
  ```yaml
      - name: Ensure VisiData can create completions
        run: python dev/zsh-completion.py
  ```
  
  (I guess you might want to run a linter, instead.)
  
  </issue>
  <code>
  [start of dev/zsh-completion.py]
  1 #!/usr/bin/env python
  2 from __future__ import unicode_literals
  3 
  4 import os
  5 from os.path import dirname as dirn
  6 import sys
  7 import re
  8 
  9 sys.path.insert(0, dirn(dirn((os.path.abspath(__file__)))))
  10 from visidata import vd
  11 from visidata.main import option_aliases
  12 
  13 ZSH_COMPLETION_FILE = "_visidata"
  14 ZSH_COMPLETION_TEMPLATE = "dev/zsh-completion.in"
  15 pat_class = re.compile("'(.*)'")
  16 pat_select = re.compile("^\([^)]*\)")
  17 
  18 
  19 def generate_completion(opt):
  20     prefix = "--" + opt.name
  21     shortnames = [key for key, value in option_aliases.items() if value[0] == opt.name]
  22     if len(shortnames):
  23         if len(shortnames[0]) == 1:
  24             shortname = "-" + shortnames[0]
  25         else:
  26             shortname = "--" + shortnames[0]
  27         prefix = "{" + f"{shortname},{prefix}" + "}"
  28     if isinstance(opt.value, bool):
  29         completion = ""
  30     else:
  31         completion = ":" + pat_class.findall(str(opt.value.__class__))[0]
  32     if opt.name in ["play", "output", "visidata_dir", "config"]:
  33         completion += ":_files"
  34     elif opt.name in ["plugins_url", "motd_url"]:
  35         completion += ":_urls"
  36     helpstr = opt.helpstr
  37     selections = pat_select.findall(helpstr)
  38     if len(selections):
  39         completion += f":{selections[0].replace('/', ' ')}"
  40     # TODO: use `zstyle ':completion:*' extra-verbose true`
  41     # to control the display of default value
  42     helpstr = helpstr + f" (default: {opt.value})"
  43     helpstr = helpstr.replace("[", "\\[").replace("]", "\\]")
  44     return f"{prefix}'[{helpstr}]{completion}'"
  45 
  46 
  47 flags = [generate_completion(vd._options[opt]["default"]) for opt in vd._options]
  48 
  49 with open(ZSH_COMPLETION_TEMPLATE) as f:
  50     template = f.read()
  51 
  52 template = template.replace("{{flags}}", " \\\n    ".join(flags))
  53 
  54 with open(ZSH_COMPLETION_FILE, "w") as f:
  55     f.write(template)
  56
  [end of dev/zsh-completion.py]
  </code>
  
  I need you to solve this issue by generating a single patch file that I can apply directly to this repository using git apply. Please respond with a single patch file in the following format.
  <patch>
  diff --git a/file.py b/file.py
  --- a/file.py
  +++ b/file.py
  @@ -1,27 +1,35 @@
   def euclidean(a, b):
  -    while b:
  -        a, b = b, a % b
  -    return a
  +    if b == 0:
  +        return a
  +    return euclidean(b, a % b)
   
   
   def bresenham(x0, y0, x1, y1):
       points = []
       dx = abs(x1 - x0)
       dy = abs(y1 - y0)
  -    sx = 1 if x0 < x1 else -1
  -    sy = 1 if y0 < y1 else -1
  -    err = dx - dy
  +    x, y = x0, y0
  +    sx = -1 if x0 > x1 else 1
  +    sy = -1 if y0 > y1 else 1
   
  -    while True:
  -        points.append((x0, y0))
  -        if x0 == x1 and y0 == y1:
  -            break
  -        e2 = 2 * err
  -        if e2 > -dy:
  -            err -= dy
  -            x0 += sx
  -        if e2 < dx:
  -            err += dx
  -            y0 += sy
  +    if dx > dy:
  +        err = dx / 2.0
  +        while x != x1:
  +            points.append((x, y))
  +            err -= dy
  +            if err < 0:
  +                y += sy
  +                err += dx
  +            x += sx
  +    else:
  +        err = dy / 2.0
  +        while y != y1:
  +            points.append((x, y))
  +            err -= dx
  +            if err < 0:
  +                x += sx
  +                err += dy
  +            y += sy
  +
  +    points.append((x, y))
       return points
  
  </patch>
golden_diff: diff --git a/dev/zsh-completion.py b/dev/zsh-completion.py
  --- a/dev/zsh-completion.py
  +++ b/dev/zsh-completion.py
  @@ -8,7 +8,6 @@
   
   sys.path.insert(0, dirn(dirn((os.path.abspath(__file__)))))
   from visidata import vd
  -from visidata.main import option_aliases
   
   ZSH_COMPLETION_FILE = "_visidata"
   ZSH_COMPLETION_TEMPLATE = "dev/zsh-completion.in"
  @@ -18,7 +17,9 @@
   
   def generate_completion(opt):
       prefix = "--" + opt.name
  -    shortnames = [key for key, value in option_aliases.items() if value[0] == opt.name]
  +    shortnames = [
  +        key for key, value in vd.option_aliases.items() if value[0] == opt.name
  +    ]
       if len(shortnames):
           if len(shortnames[0]) == 1:
               shortname = "-" + shortnames[0]
  
verification_info: {"golden_diff": "diff --git a/dev/zsh-completion.py b/dev/zsh-completion.py\n--- a/dev/zsh-completion.py\n+++ b/dev/zsh-completion.py\n@@ -8,7 +8,6 @@\n \n sys.path.insert(0, dirn(dirn((os.path.abspath(__file__)))))\n from visidata import vd\n-from visidata.main import option_aliases\n \n ZSH_COMPLETION_FILE = \"_visidata\"\n ZSH_COMPLETION_TEMPLATE = \"dev/zsh-completion.in\"\n@@ -18,7 +17,9 @@\n \n def generate_completion(opt):\n     prefix = \"--\" + opt.name\n-    shortnames = [key for key, value in option_aliases.items() if value[0] == opt.name]\n+    shortnames = [\n+        key for key, value in vd.option_aliases.items() if value[0] == opt.name\n+    ]\n     if len(shortnames):\n         if len(shortnames[0]) == 1:\n             shortname = \"-\" + shortnames[0]\n", "issue": "Current HEAD zsh-completion.py needs option_aliases update\n**Small description**\r\n\r\n`option_aliases` was removed in ce497f444db6d2f3fc0b8309f5ca839196c33c8b but is still referred to in the zsh completion code.\r\n\r\nhttps://github.com/saulpw/visidata/blob/34808745232e798b0f25e893bb444fc9f3c034eb/dev/zsh-completion.py#L11C41-L11C41\r\n\r\nI think the script needs a slight rejig to use the (present) `vd` import instead.\r\n\r\nI wonder whether this can be included in future CI?\r\n\r\n**Expected result**\r\n\r\nThe command succeeds.\r\n\r\n**Actual result**\r\n\r\n```\r\n       > /build/visidata-src\r\n       > Traceback (most recent call last):\r\n       >   File \"/build/visidata-src/dev/zsh-completion.py\", line 11, in <module>\r\n       >     from visidata.main import option_aliases\r\n       > ImportError: cannot import name 'option_aliases' from 'visidata.main' (/build/visidata-src/visidata/main.py)\r\n```\r\n\r\n**Steps to reproduce**\r\n\r\n```\r\npython dev/zsh-completion.py\r\n```\r\n\r\n**Additional context**\r\n~~Please include the version of VisiData and Python.~~\r\n\r\nhttps://github.com/saulpw/visidata/tree/34808745232e798b0f25e893bb444fc9f3c034eb but I listed the commit above that causes the breakage \u2014 I suspect this is a two minute fix for somebody familiar with the codebase, though not me. I can help with extending CI, though it might just be a case of adding\r\n\r\n```yaml\r\n    - name: Ensure VisiData can create completions\r\n      run: python dev/zsh-completion.py\r\n```\r\n\r\n(I guess you might want to run a linter, instead.)\n", "before_files": [{"content": "#!/usr/bin/env python\nfrom __future__ import unicode_literals\n\nimport os\nfrom os.path import dirname as dirn\nimport sys\nimport re\n\nsys.path.insert(0, dirn(dirn((os.path.abspath(__file__)))))\nfrom visidata import vd\nfrom visidata.main import option_aliases\n\nZSH_COMPLETION_FILE = \"_visidata\"\nZSH_COMPLETION_TEMPLATE = \"dev/zsh-completion.in\"\npat_class = re.compile(\"'(.*)'\")\npat_select = re.compile(\"^\\([^)]*\\)\")\n\n\ndef generate_completion(opt):\n    prefix = \"--\" + opt.name\n    shortnames = [key for key, value in option_aliases.items() if value[0] == opt.name]\n    if len(shortnames):\n        if len(shortnames[0]) == 1:\n            shortname = \"-\" + shortnames[0]\n        else:\n            shortname = \"--\" + shortnames[0]\n        prefix = \"{\" + f\"{shortname},{prefix}\" + \"}\"\n    if isinstance(opt.value, bool):\n        completion = \"\"\n    else:\n        completion = \":\" + pat_class.findall(str(opt.value.__class__))[0]\n    if opt.name in [\"play\", \"output\", \"visidata_dir\", \"config\"]:\n        completion += \":_files\"\n    elif opt.name in [\"plugins_url\", \"motd_url\"]:\n        completion += \":_urls\"\n    helpstr = opt.helpstr\n    selections = pat_select.findall(helpstr)\n    if len(selections):\n        completion += f\":{selections[0].replace('/', ' ')}\"\n    # TODO: use `zstyle ':completion:*' extra-verbose true`\n    # to control the display of default value\n    helpstr = helpstr + f\" (default: {opt.value})\"\n    helpstr = helpstr.replace(\"[\", \"\\\\[\").replace(\"]\", \"\\\\]\")\n    return f\"{prefix}'[{helpstr}]{completion}'\"\n\n\nflags = [generate_completion(vd._options[opt][\"default\"]) for opt in vd._options]\n\nwith open(ZSH_COMPLETION_TEMPLATE) as f:\n    template = f.read()\n\ntemplate = template.replace(\"{{flags}}\", \" \\\\\\n    \".join(flags))\n\nwith open(ZSH_COMPLETION_FILE, \"w\") as f:\n    f.write(template)\n", "path": "dev/zsh-completion.py"}]}