0000342: jar files with POSIX shell script header do not mention they are JAR files

ID	Project	Category	View Status	Date Submitted	Last Update

0000342	file	General	public	2022-04-25 06:34	2022-04-25 06:34

Reporter	jayvdb	Assigned To
Priority	normal	Severity	minor	Reproducibility	always
Status	new	Resolution	open
Product Version	5.41

Summary	0000342: jar files with POSIX shell script header do not mention they are JAR files
Description	https://github.com/pinterest/ktlint/releases/download/0.45.2/ktlint is an example of a JAR file with a POSIX shell script header, which looks like --- #!/bin/sh JV=$(java -version 2>&1 \| head -1 \| cut -d'"' -f2 \| sed '/^1\./s///' \| cut -d'.' -f1) X=$( [ "$JV" -ge "16" ] && echo "--add-opens java.base/java.lang=ALL-UNNAMED" \|\| echo "") exec java $X -Xmx512m -jar "$0" "$@" PK... ``` The java executable can run it as a jar file directly. i.e. the following prints the help on all platforms java -jar /path/to/ktlint --help The file command says it is "POSIX shell script executable (binary data)" When I manually remove the script header, file then reports it as "Zip archive data, at least v1.0 to extract, compression method=deflate" It would be great if it could mention that it is a JAR or ZIP file, perhaps like "POSIX shell script executable (JAR ..)" or "POSIX shell script executable (Zip archive data, ...)"
Steps To Reproduce	1. Download https://github.com/pinterest/ktlint/releases/download/0.45.2/ktlint 2. `file ktlint`
Tags	No tags attached.

Date Modified	Username	Field	Change
2022-04-25 06:34	jayvdb	New Issue