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fix(bash): minor cleanups
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- Remove hard coded path to binary
- Add missing license header
- Document sections
- refactor install section
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johannbg committed May 19, 2021
1 parent 636d6df commit 9355cb8
Showing 1 changed file with 20 additions and 8 deletions.
28 changes: 20 additions & 8 deletions modules.d/00bash/module-setup.sh
Original file line number Diff line number Diff line change
@@ -1,20 +1,32 @@
#!/bin/bash
# This file is part of dracut.
# SPDX-License-Identifier: GPL-2.0-or-later

# called by dracut
# Prerequisite check(s) for module.
check() {
require_binaries /bin/bash

# If the binary(s) requirements are not fulfilled the module can't be installed.
require_binaries bash || return 1

# Return 255 to only include the module, if another module requires it.
return 255

}

# called by dracut
# Module dependency requirements.
depends() {

# Return 0 to include the dependent module(s) in the initramfs.
return 0

}

# called by dracut
# Install the required file(s) and directories for the module in the initramfs.
install() {
# If another shell is already installed, do not use bash
[[ -x $initdir/bin/sh ]] && return

# Prefer bash as /bin/sh if it is available.
inst /bin/bash && ln -sf bash "${initdir}/bin/sh"
inst /bin/bash

# Prefer bash as default shell if no other shell is preferred.
[[ -L $initdir/bin/sh ]] || ln -sf bash "${initdir}/bin/sh"

}

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