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836136961a
Strengthen static code analysis for shell scripts. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: John Kennedy <john.kennedy@delphix.com> Signed-off-by: szubersk <szuberskidamian@gmail.com> Closes #12914
81 lines
2.0 KiB
Bash
Executable File
81 lines
2.0 KiB
Bash
Executable File
#!/bin/sh
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#
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# CDDL HEADER START
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#
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# This file and its contents are supplied under the terms of the
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# Common Development and Distribution License ("CDDL"), version 1.0.
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# You may only use this file in accordance with the terms of version
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# 1.0 of the CDDL.
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#
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# A full copy of the text of the CDDL should have accompanied this
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# source. A copy of the CDDL is also available via the Internet at
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# http://www.illumos.org/license/CDDL.
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#
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# CDDL HEADER END
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#
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# Copyright (c) 2018 by Delphix. All rights reserved.
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# Copyright (c) 2018 by Matthew Thode. All rights reserved.
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#
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# Generate zfs_gitrev.h. Note that we need to do this for every
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# invocation of `make`, including for incremental builds. Therefore we
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# can't use a zfs_gitrev.h.in file which would be processed only when
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# `configure` is run.
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#
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set -eu
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dist=no
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distdir=.
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while getopts D: flag
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do
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case $flag in
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\?) echo "Usage: $0 [-D distdir] [file]" >&2; exit 1;;
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D) dist=yes; distdir=${OPTARG};;
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*) ;;
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esac
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done
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shift $((OPTIND - 1))
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top_srcdir="$(dirname "$0")/.."
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GITREV="${1:-include/zfs_gitrev.h}"
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# GITREV should be a relative path (relative to top_builddir or distdir)
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case "${GITREV}" in
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/*) echo "Error: ${GITREV} should be a relative path" >&2
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exit 1;;
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*) ;;
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esac
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ZFS_GITREV=$({ cd "${top_srcdir}" &&
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git describe --always --long --dirty 2>/dev/null; } || :)
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if [ -z "${ZFS_GITREV}" ]
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then
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# If the source directory is not a git repository, check if the file
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# already exists (in the source)
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if [ -f "${top_srcdir}/${GITREV}" ]
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then
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ZFS_GITREV=$(sed -n \
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'1s/^#define[[:blank:]]ZFS_META_GITREV "\([^"]*\)"$/\1/p' \
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"${top_srcdir}/${GITREV}")
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fi
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elif [ "${dist}" = yes ]
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then
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# Append -dist when creating distributed sources from a git repository
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ZFS_GITREV="${ZFS_GITREV}-dist"
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fi
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ZFS_GITREV=${ZFS_GITREV:-unknown}
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GITREVTMP="${GITREV}~"
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printf '#define\tZFS_META_GITREV "%s"\n' "${ZFS_GITREV}" >"${GITREVTMP}"
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GITREV="${distdir}/${GITREV}"
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if cmp -s "${GITREV}" "${GITREVTMP}"
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then
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rm -f "${GITREVTMP}"
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else
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mv -f "${GITREVTMP}" "${GITREV}"
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fi
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