How do I add a syntastic segment to the powerline footer for Vim? (the new powerline, not vim-powerline) Syntastic docs only say how to add it to the standard Vim footer and I couldn't find how to add it in the powerline docs.
Most of these instruction come from this pull request (451) for powerline.
This pull request adds a syntactic segment to powerline. Since the segment isn't merged into the main powerline tree you need to preform the patches by hand. Thankfully you only need to modify three files. (+ means add the line/ - mean remove line). Look at the pull request for a colored diff.
File: powerline/config_files/colorschemes/vim/default.json (Line 28)
"line_current_symbol": { "fg": "gray1", "bg": "gray10" },
"virtcol_current_gradient": { "fg": "dark_GREEN_Orange_red", "bg": "gray10" },
"col_current": { "fg": "gray6", "bg": "gray10" },
- "modified_buffers": { "fg": "brightyellow", "bg": "gray2" }
+ "modified_buffers": { "fg": "brightyellow", "bg": "gray2" },
+ "syntastic_segment": { "fg": "brightestred", "bg": "gray2", "attr": ["bold"] }
},
"mode_translations": {
"nc": {
File: powerline/config_files/colorschemes/vim/default.json (Line 68)
"groups": {
"mode": { "fg": "darkestcyan", "bg": "white", "attr": ["bold"] },
"background:divider": { "fg": "darkcyan", "bg": "darkestblue" },
- "branch:divider": { "fg": "darkcyan", "bg": "darkblue" }
+ "branch:divider": { "fg": "darkcyan", "bg": "darkblue" },
+ "syntastic_segment": { "fg": "white", "bg": "darkestblue", "attr": ["bold"] }
}
},
"v": {
File: powerline/config_files/colorschemes/vim/solarized.json (Line 27)
"line_current": { "fg": "gray13", "bg": "lightyellow", "attr": ["bold"] },
"line_current_symbol": { "fg": "gray13", "bg": "lightyellow" },
"virtcol_current_gradient": { "fg": "GREEN_Orange_red", "bg": "gray10" },
- "col_current": { "fg": "azure4", "bg": "lightyellow" }
+ "col_current": { "fg": "azure4", "bg": "lightyellow" },
+ "syntastic_segment": { "fg": "red", "bg": "royalblue5", "attr": ["bold"] }
},
"mode_translations": {
"nc": {
File: powerline/config_files/colorschemes/vim/solarized.json (Line 65)
"line_percent_gradient": { "fg": "oldlace", "bg": "gray61" },
"line_current": { "fg": "gray13", "bg": "oldlace", "attr": ["bold"] },
"line_current_symbol": { "fg": "gray13", "bg": "oldlace" },
- "col_current": { "fg": "azure4", "bg": "oldlace" }
+ "col_current": { "fg": "azure4", "bg": "oldlace" },
+ "syntastic_segment": { "fg": "lightyellow", "bg": "darkgreencopper", "attr": ["bold"] }
}
},
"v": {
File: powerline/segments/vim.py (Line 23)
'expand': vim_get_func('expand', rettype=str),
'bufnr': vim_get_func('bufnr', rettype=int),
'line2byte': vim_get_func('line2byte', rettype=int),
+ 'exists': vim_get_func('exists', rettype=int),
}
vim_modes = {
At the end of powerline/segments/vim.py add the following function. (Make sure you use tabs to indent the function. You are modifying a python file indentation matters)
@window_cached
def syntastic_segment(pl):
'''Return the syntastic statusline flag
'''
if int(vim_funcs['exists']('*SyntasticStatuslineFlag')) > 0:
syntastic_flag_func = vim_get_func('SyntasticStatuslineFlag', rettype=str)
return [{
'contents': str(syntastic_flag_func()),
}]
else:
return None
After all these changes are made you need to now turn on the segment. One way to do this is to edit the config file ~/.config/powerline/themes/vim/default.json
In the section segments: place the following in either the right or the left sections.
{
"name": "syntastic_segment",
"before": " "
},
After all of these changes you should now be able to see the syntastic error output on the power line segment.
Troubleshooting:
vim --noplugin to start vim without plugins to powerline doesn't try and parse the file.