nvf/modules/treesitter/context.nix

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{
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pkgs,
config,
lib,
...
}:
with lib;
with builtins; let
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treesitter = config.vim.treesitter;
cfg = treesitter.context;
in {
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options.vim.treesitter.context = {
enable = mkEnableOption "context of current buffer contents [nvim-treesitter-context] ";
maxLines = mkOption {
description = "How many lines the window should span. Values <=0 mean no limit.";
type = types.int;
default = 0;
};
minWindowHeight = mkOption {
description = "Minimum editor window height to enable context. Values <= 0 mean no limit.";
type = types.int;
default = 0;
};
lineNumbers = mkOption {
description = "";
type = types.bool;
default = true;
};
multilineThreshold = mkOption {
description = "Maximum number of lines to collapse for a single context line.";
type = types.int;
default = 20;
};
trimScope = mkOption {
description = "Which context lines to discard if {option}`vim.treesitter.context.maxLines` is exceeded.";
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type = types.enum ["inner" "outer"];
default = "outer";
};
mode = mkOption {
description = "Line used to calculate context.";
type = types.enum ["cursor" "topline"];
default = "cursor";
};
separator = mkOption {
description = ''
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Separator between context and content. Should be a single character string, like '-'.
When separator is set, the context will only show up when there are at least 2 lines above cursorline.
'';
type = with types; nullOr str;
default = null;
};
zindex = mkOption {
description = "The Z-index of the context window.";
type = types.int;
default = 20;
};
};
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config = mkIf (treesitter.enable && cfg.enable) {
vim.startPlugins = ["nvim-treesitter-context"];
vim.luaConfigRC.treesitter-context = nvim.dag.entryAnywhere ''
require'treesitter-context'.setup {
enable = true,
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max_lines = ${toString cfg.maxLines},
min_window_height = ${toString cfg.minWindowHeight},
line_numbers = ${boolToString cfg.lineNumbers},
multiline_threshold = ${toString cfg.multilineThreshold},
trim_scope = '${cfg.trimScope}',
mode = '${cfg.mode}',
separator = ${nvim.lua.nullString cfg.separator},
max_lines = ${toString cfg.zindex},
}
'';
};
}