From 35ed194361f672a1469dcf27a97830fdd9098d02 Mon Sep 17 00:00:00 2001
From: b1ek <me@blek.codes>
Date: Sat, 7 Sep 2024 16:58:54 +1000
Subject: [PATCH] feat: ignore next line keyword

---
 README.md |  4 ++++
 finder.go | 23 ++++++++++++++++++++++-
 2 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index bba959f..93f1b65 100644
--- a/README.md
+++ b/README.md
@@ -18,6 +18,10 @@ tags
 
 # You can add/ignore multiple commands at once:
 #bshchk:add-cmd curl wget
+
+# To ignore next line:
+#bshchk:ignore-next-line
+curl # won't be checked
 ```
 
 
diff --git a/finder.go b/finder.go
index 64b17cd..d865d45 100644
--- a/finder.go
+++ b/finder.go
@@ -6,13 +6,22 @@ import (
 	"mvdan.cc/sh/v3/syntax"
 )
 
+var ignored_lines = []uint{}
+
 func get_ignored_and_deps(code string) ([]string, []string) {
 	// source: https://www.gnu.org/software/bash/manual/html_node/Bash-Builtins.html
 	var ignored []string = []string{"alias", "bind", "builtin", "caller", "command", "declare", "echo", "enable", "let", "local", "logout", "mapfile", "printf", "read", "readarray", "source", "type", "typeset", "ulimit", "unalias"}
 	var deps []string
 
-	for _, line := range strings.Split(code, "\n") {
+	for i, line := range strings.Split(code, "\n") {
 		splitted := strings.Split(line, " ")
+
+		// comments w/ no arguments
+		if splitted[0] == "#bshchk:ignore-next-line" {
+			ignored_lines = append(ignored_lines, uint(i)+1)
+		}
+
+		// comments with arguments
 		if len(splitted) < 2 {
 			continue
 		}
@@ -27,6 +36,15 @@ func get_ignored_and_deps(code string) ([]string, []string) {
 	return ignored, deps
 }
 
+func is_line_ignored(line uint) bool {
+	for _, ignored := range ignored_lines {
+		if line == ignored {
+			return true
+		}
+	}
+	return false
+}
+
 func find(code string) ([]string, error) {
 	r := strings.NewReader(code)
 	f, err := syntax.NewParser().Parse(r, "")
@@ -50,6 +68,9 @@ func find(code string) ([]string, error) {
 	syntax.Walk(f, func(node syntax.Node) bool {
 		switch x := node.(type) {
 		case *syntax.CallExpr:
+			if is_line_ignored(node.Pos().Line() - 1) {
+				return true
+			}
 			for i := range x.Args {
 				for _, part := range x.Args[i].Parts {
 					switch xx := part.(type) {