Fix shell location / finding

POSIX says a bourne shell is available in `/bin/sh`.  For any other
command, `/usr/bin/env` can be used to locate the binary in $PATH.

Fix all scripts to use `/bin/sh` when applicable, and rely on
`/usr/bin/env` to locate `bash` when necessary.

autogen.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # Run this to generate all the initial makefiles, etc.
 
 usage() {

src/try

@@ -1,4 +1,4 @@
-#! /bin/bash
+#!/usr/bin/env bash
 
 topdir=$(cd $(dirname $0)/.. && pwd)
 export AUGEAS_LENS_LIB=${topdir}/lenses

tests/test-augtool-empty-line.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#!/bin/sh
 
 # Test for BZ 566844. Make sure we don't spew nonsense when the input
 # contains empty lines

tests/test-augtool-modify-root.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#!/bin/sh
 
 # Make sure changing the value of root works
 

tests/test-augtool.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#!/bin/sh
 
 TOP_DIR=$(cd $(dirname $0)/.. && pwd)
 TOP_BUILDDIR="$abs_top_builddir"

tests/test-bug-1.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#!/bin/sh
 
 # Test for bug https://fedorahosted.org/augeas/ticket/1
 #

tests/test-events-saved.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#!/bin/sh
 
 # Check that saving preserves mode and ownership; for this test to make
 # much sense (if any) the user running it should have at least one

tests/test-get.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#!/bin/sh
 
 # Check that reading the files in tests/root/ with augtool does not lead to
 # any errors

tests/test-idempotent.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#!/bin/sh
 
 # Test that saving changes that don't really change the underlying file
 # leave the original file intact

tests/test-interpreter.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#!/bin/sh
 
 # Run test modules that make sure the interpreter fails/succeeds in
 # various hairy situations.

tests/test-nonwritable.sh

@@ -1,10 +1,10 @@
-#! /bin/bash
+#!/bin/sh
 
 # Test that an attempt to save into a non-writable file does not leave a
 # temporary file behind.
 # See https://github.com/hercules-team/augeas/issues/479
 
-if [ $UID -ne 0 -o "$(uname -s)" != "Linux" ]; then
+if [ "$UID" != 0 -o "$(uname -s)" != "Linux" ]; then
     echo "Test can only be run as root on Linux as it uses chattr"
     exit 77
 fi

tests/test-preserve.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#!/bin/sh
 
 # Check that saving preserves mode and ownership; for this test to make
 # much sense (if any) the user running it should have at least one

tests/test-put-mount-augnew.sh

@@ -1,11 +1,11 @@
-#! /bin/bash
+#!/bin/sh
 
 # Test that we can write into a bind mount placed at PATH.augnew with the
 # copy_if_rename_fails flag.
 # This requires that EXDEV or EBUSY is returned from rename(2) to activate the
 # code path, so set up a bind mount on Linux.
 
-if [ $UID -ne 0 -o "$(uname -s)" != "Linux" ]; then
+if [ "$UID" != 0 -o "$(uname -s)" != "Linux" ]; then
     echo "Test can only be run as root on Linux to create bind mounts"
     exit 77
 fi

tests/test-put-mount-augsave.sh

@@ -1,10 +1,10 @@
-#! /bin/bash
+#!/bin/sh
 
 # Test that we don't follow bind mounts when writing to .augsave.
 # This requires that EXDEV or EBUSY is returned from rename(2) to activate the
 # code path, so set up a bind mount on Linux.
 
-if [ $UID -ne 0 -o "$(uname -s)" != "Linux" ]; then
+if [ "$UID" != 0 -o "$(uname -s)" != "Linux" ]; then
     echo "Test can only be run as root on Linux to create bind mounts"
     exit 77
 fi

tests/test-put-mount.sh

@@ -1,10 +1,10 @@
-#! /bin/bash
+#!/bin/sh
 
 # Test that we can write into a bind mount with the copy_if_rename_fails flag.
 # This requires that EXDEV or EBUSY is returned from rename(2) to activate the
 # code path, so set up a bind mount on Linux.
 
-if [ $UID -ne 0 -o "$(uname -s)" != "Linux" ]; then
+if [ "$UID" != 0 -o "$(uname -s)" != "Linux" ]; then
     echo "Test can only be run as root on Linux to create bind mounts"
     exit 77
 fi

tests/test-put-symlink-augnew.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#!/bin/sh
 
 # Test that we don't follow symlinks when writing to .augnew
 

tests/test-put-symlink-augsave.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#!/bin/sh
 
 # Test that we don't follow .augsave symlinks
 

tests/test-put-symlink-augtemp.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#!/bin/sh
 
 # Test that we don't follow .augnew symlinks (regression test)
 

tests/test-put-symlink.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#!/bin/sh
 
 # Test that we correctly preserve symlinks when saving a file
 

tests/test-save-empty.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#!/bin/sh
 
 # Test that we report an error when writing to nonexistant dirs
 # but that we do create new files correctly

tests/test-save-mode.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#!/bin/sh
 
 # Test manipulating the save flags in /augeas/save
 

tests/test-unlink-error.sh

@@ -1,4 +1,4 @@
-#! /bin/bash
+#!/bin/sh
 
 # Make sure we don't delete files simply because there was an error reading
 # them in

tests/test-valgrind.sh

@@ -1,11 +1,11 @@
-#! /bin/bash
+#!/bin/sh
 
 # Run the tests in lenses/tests through valgrind and report which ones leak
 set -e
 
 TOPDIR=$(cd $(dirname $0)/.. && pwd)
-[[ -n "$top_builddir" ]] || top_builddir=$TOPDIR
-[[ -n "$top_srcdir" ]] || top_srcdir=$TOPDIR
+[ -n "$top_builddir" ] || top_builddir=$TOPDIR
+[ -n "$top_srcdir" ] || top_srcdir=$TOPDIR
 
 
 AUGPARSE="libtool --mode=execute valgrind -q --leak-check=full ${top_builddir}/src/augparse"