bash scripts: use /usr/bin/env for bash shebangs
Not all systems / distros have a `/bin/bash`, and these scripts are
more difficult to run at development time.
For example, my system is NixOS which doesn't have a /bin/bash. This
is not a problem for NixOS building ZFS as a package: the build
environment automatically replaces these shebangs with corrected
paths.
The problem is much more annoying at development time: either the
scripts don't run, or I correct them for my local machine and deal with
a perpetually dirty work tree.
Before committing this patch I confirmed there are existing scripts
which use `/usr/bin/env` to locate bash, so I am thinking this is a
safe transformation.
There are a handful of other shebangs in this repository which don't
work on my system. This patch is useful on its own specifically for
`commitcheck.sh`, otherwise I can't validate my commits before
submission.
Here are the remaining shebangs which NixOS systems won't have:
1274 #!/bin/ksh -p
91 #!/bin/ksh
89 #! /bin/ksh -p
2 #!/bin/sed -f
1 #!/usr/bin/perl -w
1 #!/usr/bin/ksh
1 #!/bin/nawk -f
plus this which will create an invalid shebang in
`tests/zfs-tests/tests/functional/mv_files/mv_files_common.kshlib`:
echo "#!/bin/ksh" > $TEST_BASE_DIR/exitsZero.ksh
I chose to leave those alone for now, and gauge the interest in this
much smaller patch first.
The fixes for these are easy enough by simply using `/usr/bin/env ksh`:
91 #!/bin/ksh
1 #!/usr/bin/ksh
The fix for the other set is much trickier. Quoting the GNU coreutils
manual:
Most operating systems (e.g. GNU/Linux, BSDs) treat all text after
the first space as a single argument. When using env in a script it
is thus not possible to specify multiple arguments.
and not all `env`'s support arguments.
Mine (GNU Coreutils 8.31) does, though this feature is new since
April 2018, GNU Coreutils 8.30:
https://git.savannah.gnu.org/cgit/coreutils.git/commit/?id=668306ed86c8c79b0af0db8b9c882654ebb66db2
and worse, requires the -S argument:
-S, --split-string=S process and split S into separate arguments;
used to pass multiple arguments on shebang
lines
Example:
$ seq 1 2 | $(nix-build '<nixpkgs>' -A coreutils)/bin/env "sort -nr"
/nix/[...]-coreutils-8.31/bin/env: ‘sort -nr’: No such file or directory
/nix/[...]-coreutils-8.31/bin/env: use -[v]S to pass options in shebang lines
$ seq 1 2 | $(nix-build '<nixpkgs>' -A coreutils)/bin/env "-S sort -nr"
2
1
GNU Coreutils says FreeBSD's `env` does, though I wonder if FreeBSD's
would be unhappy with the `-S`:
https://www.gnu.org/software/coreutils/manual/html_node/env-invocation.html#env-invocation
BusyBox v1.30.1 does not, and does not have a `-S`-like option:
$ seq 1 2 | $(nix-build '<nixpkgs>' -A busybox)/bin/env "sort -nr"
env: can't execute 'sort -nr': No such file or directory
Toybox 0.8.1 also does not, and also does not have a `-S` option:
$ seq 1 2 | $(nix-build '<nixpkgs>' -A toybox)/bin/env "sort -nr"
env: exec sort -nr: No such file or directory
---
At any rate, if this patch merges and the remaining ~1,500 are updated,
the much larger patch should probably include a checkstyle-like test
asserting all new shebangs use `/usr/bin/env`. I also don't mind
dealing with NixOS weirdness if the project would prefer that.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Graham Christensen <graham@grahamc.com>
Closes #9893
2020-02-11 00:13:46 +03:00
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#!/usr/bin/env bash
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Trim excess shellcheck annotations. Widen to all non-Korn scripts
Before, make shellcheck checked
scripts/{commitcheck,make_gitrev,man-dates,paxcheck,zfs-helpers,zfs,
zfs-tests,zimport,zloop}.sh
cmd/zed/zed.d/{{all-debug,all-syslog,data-notify,generic-notify,
resilver_finish-start-scrub,scrub_finish-notify,
statechange-led,statechange-notify,trim_finish-notify,
zed-functions}.sh,history_event-zfs-list-cacher.sh.in}
cmd/zpool/zpool.d/{dm-deps,iostat,lsblk,media,ses,smart,upath}
now it also checks
contrib/dracut/{02zfsexpandknowledge/module-setup,
90zfs/{export-zfs,parse-zfs,zfs-needshutdown,
zfs-load-key,zfs-lib,module-setup,
mount-zfs,zfs-generator}}.sh.in
cmd/zed/zed.d/{pool_import-led,vdev_attach-led,
resilver_finish-notify,vdev_clear-led}.sh
contrib/initramfs/{zfsunlock,hooks/zfs.in,scripts/local-top/zfs}
tests/zfs-tests/tests/perf/scripts/prefetch_io.sh
scripts/common.sh.in
contrib/bpftrace/zfs-trace.sh
autogen.sh
Reviewed-by: John Kennedy <john.kennedy@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #12042
2021-05-14 15:02:11 +03:00
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# shellcheck disable=SC2154
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2011-07-04 21:25:31 +04:00
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check() {
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2011-07-25 00:46:16 +04:00
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# We depend on udev-rules being loaded
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2015-02-15 22:28:42 +03:00
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[ "${1}" = "-d" ] && return 0
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2011-07-04 21:25:31 +04:00
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2011-07-25 00:46:16 +04:00
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# Verify the zfs tool chain
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2021-01-21 23:58:24 +03:00
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for tool in "@sbindir@/zgenhostid" "@sbindir@/zpool" "@sbindir@/zfs" "@mounthelperdir@/mount.zfs" ; do
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2016-04-24 14:35:44 +03:00
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test -x "$tool" || return 1
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done
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2011-07-04 21:25:31 +04:00
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2011-07-25 00:46:16 +04:00
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return 0
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2011-07-04 21:25:31 +04:00
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}
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depends() {
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2011-07-25 00:46:16 +04:00
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echo udev-rules
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return 0
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2011-07-04 21:25:31 +04:00
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}
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installkernel() {
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2011-07-25 00:46:16 +04:00
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instmods zfs
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instmods zcommon
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instmods znvpair
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instmods zavl
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instmods zunicode
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2018-02-08 19:16:23 +03:00
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instmods zlua
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2017-09-12 23:15:11 +03:00
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instmods icp
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2011-07-25 00:46:16 +04:00
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instmods spl
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instmods zlib_deflate
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instmods zlib_inflate
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2011-07-04 21:25:31 +04:00
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}
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install() {
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2011-08-10 01:39:47 +04:00
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inst_rules @udevruledir@/90-zfs.rules
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2013-03-20 22:25:50 +04:00
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inst_rules @udevruledir@/69-vdev.rules
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2011-08-10 01:39:47 +04:00
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inst_rules @udevruledir@/60-zvol.rules
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2016-04-24 14:35:44 +03:00
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dracut_install hostid
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dracut_install grep
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2021-01-21 23:58:24 +03:00
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dracut_install @sbindir@/zgenhostid
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2011-08-10 01:39:47 +04:00
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dracut_install @sbindir@/zfs
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dracut_install @sbindir@/zpool
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2020-10-09 06:10:13 +03:00
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# Workaround for https://github.com/openzfs/zfs/issues/4749 by
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# ensuring libgcc_s.so(.1) is included
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2021-05-03 23:11:02 +03:00
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if ldd @sbindir@/zpool | grep -qF 'libgcc_s.so'; then
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2016-09-21 23:35:16 +03:00
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# Dracut will have already tracked and included it
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:;
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2021-05-03 23:11:02 +03:00
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elif command -v gcc-config >/dev/null 2>&1; then
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2016-09-21 23:35:16 +03:00
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# On systems with gcc-config (Gentoo, Funtoo, etc.):
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# Use the current profile to resolve the appropriate path
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2021-05-03 23:11:02 +03:00
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s="$(gcc-config -c)"
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dracut_install "/usr/lib/gcc/${s%-*}/${s##*-}/libgcc_s.so.1"
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elif ls /usr/lib/libgcc_s.so* >/dev/null 2>&1; then
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2017-10-10 00:34:26 +03:00
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# Try a simple path first
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dracut_install /usr/lib/libgcc_s.so*
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2016-09-01 19:15:10 +03:00
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else
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2016-09-21 23:35:16 +03:00
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# Fallback: Guess the path and include all matches
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dracut_install /usr/lib/gcc/*/*/libgcc_s.so*
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2016-09-01 19:15:10 +03:00
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fi
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2017-12-18 01:14:07 +03:00
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dracut_install @mounthelperdir@/mount.zfs
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2013-01-29 22:53:19 +04:00
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dracut_install @udevdir@/vdev_id
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2017-08-04 21:14:48 +03:00
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dracut_install awk
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2018-05-30 03:32:05 +03:00
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dracut_install basename
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2018-12-14 02:48:46 +03:00
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dracut_install cut
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2017-08-04 21:14:48 +03:00
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dracut_install head
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2011-08-10 01:39:47 +04:00
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dracut_install @udevdir@/zvol_id
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2015-02-15 22:28:42 +03:00
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inst_hook cmdline 95 "${moddir}/parse-zfs.sh"
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2016-03-31 02:59:15 +03:00
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if [ -n "$systemdutildir" ] ; then
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inst_script "${moddir}/zfs-generator.sh" "$systemdutildir"/system-generators/dracut-zfs-generator
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fi
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2018-01-18 21:20:34 +03:00
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inst_hook pre-mount 90 "${moddir}/zfs-load-key.sh"
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2016-04-24 14:35:44 +03:00
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inst_hook mount 98 "${moddir}/mount-zfs.sh"
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2016-10-17 21:51:15 +03:00
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inst_hook cleanup 99 "${moddir}/zfs-needshutdown.sh"
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2016-10-16 06:30:53 +03:00
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inst_hook shutdown 20 "${moddir}/export-zfs.sh"
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2011-09-30 21:33:26 +04:00
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2015-02-15 22:28:42 +03:00
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inst_simple "${moddir}/zfs-lib.sh" "/lib/dracut-zfs-lib.sh"
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2013-03-20 22:25:50 +04:00
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if [ -e @sysconfdir@/zfs/zpool.cache ]; then
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inst @sysconfdir@/zfs/zpool.cache
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2016-03-31 02:59:15 +03:00
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type mark_hostonly >/dev/null 2>&1 && mark_hostonly @sysconfdir@/zfs/zpool.cache
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2013-03-20 22:25:50 +04:00
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fi
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2015-02-16 06:08:04 +03:00
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if [ -e @sysconfdir@/zfs/vdev_id.conf ]; then
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inst @sysconfdir@/zfs/vdev_id.conf
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2016-03-31 02:59:15 +03:00
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type mark_hostonly >/dev/null 2>&1 && mark_hostonly @sysconfdir@/zfs/vdev_id.conf
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2015-02-16 06:08:04 +03:00
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fi
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2011-09-30 21:33:26 +04:00
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# Synchronize initramfs and system hostid
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2020-11-13 06:00:59 +03:00
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if [ -f @sysconfdir@/hostid ]; then
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inst @sysconfdir@/hostid
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type mark_hostonly >/dev/null 2>&1 && mark_hostonly @sysconfdir@/hostid
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elif HOSTID="$(hostid 2>/dev/null)" && [ "${HOSTID}" != "00000000" ]; then
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zgenhostid -o "${initdir}@sysconfdir@/hostid" "${HOSTID}"
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type mark_hostonly >/dev/null 2>&1 && mark_hostonly @sysconfdir@/hostid
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fi
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2016-03-31 02:59:15 +03:00
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if dracut_module_included "systemd"; then
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2018-07-31 20:15:41 +03:00
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mkdir -p "${initdir}/$systemdsystemunitdir/zfs-import.target.wants"
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2016-03-31 02:59:15 +03:00
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for _item in scan cache ; do
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dracut_install @systemdunitdir@/zfs-import-$_item.service
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2018-07-31 20:15:41 +03:00
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if ! [ -L "${initdir}/$systemdsystemunitdir/zfs-import.target.wants"/zfs-import-$_item.service ]; then
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ln -s ../zfs-import-$_item.service "${initdir}/$systemdsystemunitdir/zfs-import.target.wants"/zfs-import-$_item.service
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2016-03-31 02:59:15 +03:00
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type mark_hostonly >/dev/null 2>&1 && mark_hostonly @systemdunitdir@/zfs-import-$_item.service
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fi
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done
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2019-04-03 03:14:39 +03:00
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inst "${moddir}"/zfs-env-bootfs.service "${systemdsystemunitdir}"/zfs-env-bootfs.service
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ln -s ../zfs-env-bootfs.service "${initdir}/${systemdsystemunitdir}/zfs-import.target.wants"/zfs-env-bootfs.service
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type mark_hostonly >/dev/null 2>&1 && mark_hostonly @systemdunitdir@/zfs-env-bootfs.service
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2018-07-17 01:11:36 +03:00
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dracut_install systemd-ask-password
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dracut_install systemd-tty-ask-password-agent
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2018-07-31 20:15:41 +03:00
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mkdir -p "${initdir}/$systemdsystemunitdir/initrd.target.wants"
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dracut_install @systemdunitdir@/zfs-import.target
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if ! [ -L "${initdir}/$systemdsystemunitdir/initrd.target.wants"/zfs-import.target ]; then
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ln -s ../zfs-import.target "${initdir}/$systemdsystemunitdir/initrd.target.wants"/zfs-import.target
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type mark_hostonly >/dev/null 2>&1 && mark_hostonly @systemdunitdir@/zfs-import.target
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fi
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2020-05-30 07:16:08 +03:00
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for _service in zfs-snapshot-bootfs.service zfs-rollback-bootfs.service ; do
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inst "${moddir}"/$_service "${systemdsystemunitdir}"/$_service
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if ! [ -L "${initdir}/$systemdsystemunitdir/initrd.target.wants"/$_service ]; then
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ln -s ../$_service "${initdir}/$systemdsystemunitdir/initrd.target.wants"/$_service
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fi
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done
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2016-03-31 02:59:15 +03:00
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fi
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2011-07-04 21:25:31 +04:00
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}
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