Merge pull request #13 from bertsky/bash-from-env

use bash from env instead of fixed path, check version

Author: bertsky

CHANGELOG.md

@@ -2,6 +2,16 @@ Change Log
 ==========
 Versioned according to [Semantic Versioning](http://semver.org/).
 
+## Unreleased
+
+## 0.0.3
+
+Changed:
+
+- Use bash from env instead of fixed shebang
+- Ensure minimum bash version
+
+
 ## 0.0.2
 
 First release

ocrd-im6convert

@@ -1,10 +1,11 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # shellcheck disable=SC2086
 
 set -eu
 set -o pipefail
 
-which ocrd >/dev/null 2>/dev/null || { echo "ocrd not in \$PATH. Panicking"; exit 1; }
+which ocrd >/dev/null 2>/dev/null || { echo >&2 "ocrd not in \$PATH. Panicking"; exit 1; }
+((BASH_VERSINFO<4 || BASH_VERSINFO==4 && BASH_VERSINFO[1]<4)) && echo >&2 "bash $BASH_VERSION is too old. Please install bash 4.4 or newer." && exit 1
 
 SHAREDIR="$(cd "$(dirname "$0")" >/dev/null && pwd)"
 

ocrd-tool.json

@@ -1,6 +1,6 @@
 {
   "git_url": "https://github.com/OCR-D/ocrd_im6convert",
-  "version": "0.0.2",
+  "version": "0.0.3",
   "tools": {
 
     "ocrd-im6convert": {