Fixup comment at start of run

Author: reteps

cmd/version.go

@@ -14,6 +14,6 @@ var versionCmd = &cobra.Command{
 	Use:   "version",
 	Short: "Print the version number of dockerfmt",
 	Run: func(cmd *cobra.Command, args []string) {
-		fmt.Println("dockerfmt 0.3.3")
+		fmt.Println("dockerfmt 0.3.4")
 	},
 }

js/format.wasm

@@ -1,6 +1,6 @@
 {
   "name": "@reteps/dockerfmt",
-  "version": "0.3.3",
+  "version": "0.3.4",
   "type": "module",
   "description": "",
   "repository": "git+https://github.com/reteps/dockerfmt/tree/main/js",

js/package-lock.json

@@ -8,6 +8,7 @@ import (
 	"log"
 	"os"
 	"regexp"
+	"slices"
 	"strings"
 
 	"github.com/google/shlex"
@@ -313,10 +314,15 @@ func formatShell(content string, hereDoc bool, c *Config) string {
 		lines := strings.SplitAfter(content, "\n")
 		prevIsComment := false
 		prevCommentSpacing := ""
+		firstLineIsComment := false
 		for i := range lines {
 			lineTrim := strings.TrimLeft(lines[i], " \t")
 			// fmt.Printf("LineTrim: %s, %v\n", lineTrim, prevIsComment)
 			if len(lineTrim) >= 1 && lineTrim[0] == '#' {
+				if i == 0 {
+					firstLineIsComment = true
+					lines[i] = strings.Repeat(" ", int(c.IndentSize)) + lineTrim
+				}
 				lineParts := strings.SplitN(lines[i], "#", 2)
 
 				if prevIsComment {
@@ -329,6 +335,10 @@ func formatShell(content string, hereDoc bool, c *Config) string {
 				prevIsComment = false
 			}
 		}
+		// TODO: this formatting isn't perfect (see tests/out/run5.dockerfile)
+		if firstLineIsComment {
+			lines = slices.Insert(lines, 0, "\\\n")
+		}
 		content = strings.Join(lines, "")
 		content = strings.ReplaceAll(content, "×", "`")
 
@@ -387,7 +397,7 @@ func GetHeredoc(n *ExtendedNode) (string, bool) {
 		return "", false
 	}
 
-	printAST(n, 0)
+	// printAST(n, 0)
 	args := []string{}
 	cur := n.Next
 	for cur != nil {

js/package.json

@@ -0,0 +1,17 @@
+# https://github.com/un-ts/prettier/issues/441#issuecomment-2793674631
+FROM ghcr.io/zerocluster/node/app
+
+RUN \
+    # install dependencies
+    NODE_ENV=production npm install-clean \
+    \
+    # cleanup
+    && /usr/bin/env bash <(curl -fsSL https://raw.githubusercontent.com/softvisio/scripts/main/env-build-node.sh) cleanup
+
+RUN \
+    # install dependencies
+    # multiline comment
+    NODE_ENV=production npm install-clean \
+    \
+    # cleanup
+    && /usr/bin/env bash <(curl -fsSL https://raw.githubusercontent.com/softvisio/scripts/main/env-build-node.sh) cleanup

lib/format.go

@@ -0,0 +1,15 @@
+# https://github.com/un-ts/prettier/issues/441#issuecomment-2793674631
+FROM ghcr.io/zerocluster/node/app
+
+RUN \
+    # install dependencies
+    NODE_ENV=production npm install-clean \
+    # cleanup
+    && /usr/bin/env bash <(curl -fsSL https://raw.githubusercontent.com/softvisio/scripts/main/env-build-node.sh) cleanup
+
+RUN \
+    # install dependencies
+    # multiline comment
+        NODE_ENV=production npm install-clean \
+    # cleanup
+    && /usr/bin/env bash <(curl -fsSL https://raw.githubusercontent.com/softvisio/scripts/main/env-build-node.sh) cleanup