build: nix flake for a dev shell (#3677)

.config/vscode-recommended/launch.json

@@ -0,0 +1,21 @@
+{
+  // Use IntelliSense to learn about possible attributes.
+  // Hover to view descriptions of existing attributes.
+  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "type": "lldb",
+      "request": "launch",
+      "name": "prqlc _a.prql",
+      "program": "${workspaceFolder}/target/debug/prqlc",
+      "args": ["debug", "semantics", "_a.prql"],
+      "env": {
+        "RUST_LOG": "debug",
+        "RUST_BACKTRACE": "1"
+      },
+      "preLaunchTask": "prqlc-build",
+      "cwd": "${workspaceFolder}"
+    }
+  ]
+}

.config/vscode-recommended/settings.json

@@ -0,0 +1,17 @@
+{
+  "nixEnvSelector.args": ".#full",
+  "nixEnvSelector.suggestion": false,
+  "nixEnvSelector.nixFile": "${workspaceRoot}/flake.nix",
+  //   "prettier.configPath": ".config/prettier.yaml",
+  "files.exclude": {
+    "**/.git": true,
+    "**/.svn": true,
+    "**/.hg": true,
+    "**/CVS": true,
+    "**/.DS_Store": true,
+    "**/Thumbs.db": true,
+    "web/book/book": true,
+    "web/build": true,
+    ".direnv": true
+  }
+}

.config/vscode-recommended/tasks.json

@@ -0,0 +1,16 @@
+{
+  "version": "2.0.0",
+  "tasks": [
+    {
+      "label": "prqlc-build",
+      "type": "cargo",
+      "command": "build",
+      "args": ["--package=prqlc"],
+      "presentation": {
+        "reveal": "silent",
+        "clear": true
+      },
+      "problemMatcher": ["$rustc"]
+    }
+  ]
+}

.gitignore

@@ -23,6 +23,7 @@ _*.sql
 **/node_modules/
 
 .task
+.direnv
 
 *.snap.tmp
 # These shouldn't be committed, and cause watchers to re-run when they're
@@ -35,3 +36,4 @@ _*.sql
 *.my.csv
 
 cobertura.xml
+.envrc

.mega-linter.yaml

@@ -18,6 +18,7 @@ DISABLE_LINTERS:
   - REPOSITORY_TRUFFLEHOG # Detecting secrets in .git/config, which is not even committed.
   - REPOSITORY_GRYPE # Slow (10+ seconds). Blocking unrelated PRs. We already have depandabot.
   - YAML_V8R # Slow (70+ seconds). We don't use YAML schema.
+  - JSON_V8R # Failing for vscode-style syntax (comments).
 DISABLE_ERRORS_LINTERS:
   - COPYPASTE_JSCPD
   - REPOSITORY_TRIVY