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We can't do set -o pipefail in POSIX sh, which we're using,
but the build system has x_ which wraps around a command
and executes it, exiting with non-zero status if it does.
This fact enables lbmk to have functionality that is actually
superior to pipefail, since you can more easily control
specifically which parts error.
For example:
foo | bar | foo2 | bar2 | $err "error"
ERROR exits with non-zero status, but foo2, bar and foo
would not exit on error, only bar2 would. In *bash*, which
we avoid, set -o pipefail would make all of them exit on
error, but what if you wanted "bar" to not exit?
With lbmk, you could do, in the above example, and with the
above question asked ("what if you wanted bar not to exit"):
x_ foo | bar | x_ foo2 | bar2 > file | $err "error"
of course, you could also do, if not outputting to "file":
x_ foo | bar | x_ foo2 | x_ bar2
NOTE: in lbmk, $err is a variable containing the name of
a function that does something (whatever you want) and
then exits with non-zero status.
This entire explanation is beyond the scope of simply
providing (and explaining) this fix, but I also wanted to
use this commit as an example of the power of lbmk with
regards to POSIX shell scripting.
Signed-off-by: Leah Rowe <leah@libreboot.org>
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directly quoting it and running it quoted means
that the shell way try to execute it as a file.
Signed-off-by: Leah Rowe <leah@libreboot.org>
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Signed-off-by: Leah Rowe <leah@libreboot.org>
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Signed-off-by: Leah Rowe <leah@libreboot.org>
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These checks are no longer necessary, because these
checks are already properly handled in main().
Signed-off-by: Leah Rowe <leah@libreboot.org>
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I was using a complicated method of knowing whether
the current instance was parent or a child, to know
whether the lock file and TMPDIR needed to be purged.
It was quite error-prone too. Instead, I'm now handling
it directly from within the if statement that previously
initialised xbmk_parent=y, forking ./mk from there.
The forked instance would not trigger that if clause
again, since then TMPDIR is created, thus avoiding
recursion.
This is an improvement because it doesn't rely on how
the parent handles exit statuses, and it ensures that
the lock/tmp files are never accidentally deleted.
Even if a given program/script that lbmk runs would
export TMPDIR, it doesn't matter because lbmk doesn't,
so it would be unaffected.
Signed-off-by: Leah Rowe <leah@libreboot.org>
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Signed-off-by: Leah Rowe <leah@libreboot.org>
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script/ no longer exists. this means that the
only executable script in lbmk is now mk.
script/trees was never called directly; instead,
we used ./update trees in the past, then just ./mk.
this is part of a larger audit to simplify lbmk,
in preparation for the next Libreboot release.
Signed-off-by: Leah Rowe <leah@libreboot.org>
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we don't need it. the documentation only tells you
now to run ./mk -b coreboot target1 target2 etc
Signed-off-by: Leah Rowe <leah@libreboot.org>
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i'm removing all the backward-compatibility in the
build system, so that only the ./mk command is available
Signed-off-by: Leah Rowe <leah@libreboot.org>
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it's a shortcut command. a new symlink.
./update trees -b flashprog
can instead do:
./mk -b flashprog
Signed-off-by: Leah Rowe <leah@libreboot.org>
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