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feat(diagnostic): custom status format function #36696

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Problem:  Statusline component of diagnostics allows only the default
          format "sign:count".

Solution: Extend vim.diagnostic.Opts.Status to allow a custom signs
          or formatting function that provides the status presentation.
This commit is contained in:
Oleh Volynets
2026-03-13 12:21:45 +01:00
committed by GitHub
parent 7b8deacc3f
commit caf7808591
4 changed files with 133 additions and 28 deletions
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43
test/functional/lua/diagnostic_spec.lua
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@@ -4205,11 +4205,11 @@ describe('vim.diagnostic', function()
)
end)
it('uses text from diagnostic.config().status.text[severity]', function()
it('uses text from diagnostic.config().status.format[severity]', function()
local result = exec_lua(function()
vim.diagnostic.config({
status = {
text = {
format = {
[vim.diagnostic.severity.ERROR] = '⨯',
[vim.diagnostic.severity.WARN] = '⚠︎',
},
@@ -4226,6 +4226,45 @@ describe('vim.diagnostic', function()
eq('%#DiagnosticSignError#⨯:1 %#DiagnosticSignWarn#⚠︎:1%##', result)
end)
it('uses format function diagnostic.config().status.format', function()
local result = exec_lua(function()
local signs = {
[vim.diagnostic.severity.ERROR] = 'EE',
[vim.diagnostic.severity.WARN] = 'WW',
[vim.diagnostic.severity.INFO] = 'II',
[vim.diagnostic.severity.HINT] = 'HH',
}
local hl_map = {
[vim.diagnostic.severity.ERROR] = 'ERROR',
[vim.diagnostic.severity.WARN] = 'WARN',
[vim.diagnostic.severity.INFO] = 'INFO',
[vim.diagnostic.severity.HINT] = 'HINT',
}
vim.diagnostic.config({
status = {
format = function(counts)
local items = {}
for severity, sign in ipairs(signs) do
local count = counts[severity] or 0
local hl = hl_map[severity]
table.insert(items, ('%%#%s#%s %s'):format(hl, sign, count))
end
return table.concat(items, ' ')
end,
},
})
vim.diagnostic.set(_G.diagnostic_ns, 0, {
_G.make_error('Error 1', 0, 1, 0, 1),
_G.make_warning('Warning 1', 2, 2, 2, 2),
})
return vim.diagnostic.status()
end)
eq('%#ERROR#EE 1 %#WARN#WW 1 %#INFO#II 0 %#HINT#HH 0%##', result)
end)
end)
describe('handlers', function()