feat(treesitter): support for snakemake (#316)

* add snakemake, based off of python

* add snakemake test file

* add example (but currently incorrect) test file

* fix tests

queries/snakemake/aerial.scm

@@ -0,0 +1,19 @@
+(function_definition
+  name: (identifier) @name
+  (#set! "kind" "Function")
+  ) @type
+
+(class_definition
+  name: (identifier) @name
+  (#set! "kind" "Class")
+  ) @type
+
+(assignment
+  left: (_) @name
+  (#set! "kind" "Variable")
+  ) @type
+
+(rule_definition
+  name: (identifier) @name
+  (#set! "kind" "Class")
+) @type

tests/minimal_init.lua

@@ -9,6 +9,7 @@ vim.filetype.add({
     norg = "norg", -- Neovim doesn't have built-in norg filetype detection
     usd = "usd", -- Neovim doesn't have built-in USD filetype detection
     usda = "usd", -- Neovim doesn't have built-in USD filetype detection
+    smk = "snakemake", -- Neovim doesn't have built-in Snakemake filetype detection
   },
 })
 

tests/symbols/snakemake_test.json

@@ -0,0 +1,47 @@
+[
+  {
+    "col": 0,
+    "end_col": 27,
+    "end_lnum": 7,
+    "kind": "Class",
+    "level": 0,
+    "lnum": 1,
+    "name": "all",
+    "selection_range": {
+      "col": 5,
+      "end_col": 8,
+      "end_lnum": 1,
+      "lnum": 1
+    }
+  },
+  {
+    "col": 0,
+    "end_col": 8,
+    "end_lnum": 10,
+    "kind": "Function",
+    "level": 0,
+    "lnum": 9,
+    "name": "f",
+    "selection_range": {
+      "col": 4,
+      "end_col": 5,
+      "end_lnum": 9,
+      "lnum": 9
+    }
+  },
+  {
+    "col": 0,
+    "end_col": 10,
+    "end_lnum": 12,
+    "kind": "Variable",
+    "level": 0,
+    "lnum": 12,
+    "name": "var",
+    "selection_range": {
+      "col": 0,
+      "end_col": 3,
+      "end_lnum": 12,
+      "lnum": 12
+    }
+  }
+]

tests/treesitter/snakemake_test.smk

@@ -0,0 +1,12 @@
+rule all:
+    input:
+        "b.txt"
+    output:
+        "c.txt"
+    shell:
+        "ls -la > {output}"
+
+def f():
+    pass
+
+var = 'hi'