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feat(highlight): add highlights.overrides config table

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Problem: users had no config-level way to override computed highlight
groups and had to call nvim_set_hl externally.

Solution: add highlights.overrides table that maps group names to
highlight definitions. Overrides are applied after all computed groups
without default = true, so they always win over both computed defaults
and colorscheme definitions.
This commit is contained in:
Barrett Ruth 2026-02-07 15:47:36 -05:00
parent b7477e3af2
commit a9eea9c157
2 changed files with 26 additions and 0 deletions
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18
doc/diffs.nvim.txt
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@ -74,6 +74,7 @@ Configuration is done via `vim.g.diffs`. Set this before the plugin loads:
algorithm = 'default',
max_lines = 500,
},
overrides = {},
},
fugitive = {
horizontal = 'du',
@ -141,6 +142,13 @@ Configuration is done via `vim.g.diffs`. Set this before the plugin loads:
Character-level (intra-line) diff highlighting.
See |diffs.IntraConfig| for fields.
{overrides} (table, default: {})
Map of highlight group names to highlight
definitions (see |nvim_set_hl()|). Applied
after all computed groups without `default`,
so overrides always win over both computed
defaults and colorscheme definitions.
*diffs.ContextConfig*
Context config fields: ~
{enabled} (boolean, default: true)
@ -469,6 +477,16 @@ To customize these in your colorscheme: >lua
vim.api.nvim_set_hl(0, 'DiffsAdd', { bg = '#2e4a3a' })
vim.api.nvim_set_hl(0, 'DiffsDiffDelete', { link = 'DiffDelete' })
<
Or via `highlights.overrides` in config: >lua
vim.g.diffs = {
highlights = {
overrides = {
DiffsAdd = { bg = '#2e4a3a' },
DiffsDiffDelete = { link = 'DiffDelete' },
},
},
}
<
==============================================================================
HEALTH CHECK *diffs-health*