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README.md
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README.md
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# tree-sitter-hcl
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HCL and Terraform parsers that treat `{%` as comment lines for... reasons. iykyk 🤷
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tree-sitter grammar for the [HCL](https://github.com/hashicorp/hcl/blob/main/hclsyntax/spec.md) language
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# Neovim usage with the `nvim-treesitter` plugin
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## Try It Out
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```lua
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local configs = require("nvim-treesitter.configs")
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local parser_config = require("nvim-treesitter.parsers").get_parser_configs()
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Try the parser in the [playground](https://tree-sitter-grammars.github.io/tree-sitter-hcl/)
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local jhcl_repo = "https://code.buildbetter.boats/jenterkin/tree-sitter-jhcl"
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## Example
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parser_config.hcl = {
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install_info = {
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url = jhcl_repo,
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files = { "src/parser.c", "src/scanner.c" },
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}
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}
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Highlighting `example/example.hcl`:
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parser_config.terraform = {
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install_info = {
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url = jhcl_repo,
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files = { "src/parser.c", "src/scanner.c" },
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location = "dialects/terraform",
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}
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}
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configs.setup({
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-- ...
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## Developing
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-- We overwrote the default `nvim-treesitter` configs for `hcl` and
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-- `terraform` above, so we can include them in `ensure_installed` normally
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ensure_installed = {
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-- ...
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"hcl",
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"terraform",
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-- ...
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},
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It is recommended to use `nix` to fulfill all development dependencies. To activate the development environment simply run `nix-shell` in the project root.
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## Running Tests
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To run tests simply run `nix-shell --run 'tree-sitter test'`.
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## Compliance
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The directory `example/real_world_stuff` contains a corpus of hcl files that I found with the github query `language:HCL` for users `coreos`, `hashicorp`, `oracle` and `terraform-community-modules`.
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```bash
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tree-sitter parse --quiet --stat example/real_world_stuff/*/*
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Total parses: 1892; successful parses: 1892; failed parses: 0; success percentage: 100.00%
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-- ...
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})
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```
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## Fuzzing
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See the [fuzzing repo for this parser](https://github.com/MichaHoffmann/tree-sitter-hcl-fuzz)
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## Attributions
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Pages were copied from https://github.com/m-novikov/tree-sitter-sql
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