Because of how sh works, having just the [] line causes
sh to exit, annoyingly without an error message, but it
does cause a non-zero exit.
This bug will have already been triggering, before I added
the recent error handling on files for this for loop.
also do it to the other loop in lib.sh
Signed-off-by: Leah Rowe <leah@libreboot.org>
don't update them on child instances, since it's a waste
of time; the lock file prevents further execution, so we
are just wasting time writing to disk.
Signed-off-by: Leah Rowe <leah@libreboot.org>
in a few places, we use the presence of a file found
by fx_ to cause an exit, but the command that runs
looks something like:
exit 1 "string"
this yields an error, and a non-zero exit, because of
too many arguments to "exit", but we wanted a non-zero
exit anyway.
nevertheless, this is incorrect.
to fix it, eval is used instead. if the never-going-to-exist
condition one day exists where exit 1 actually returns, not,
you know, exits, we will use err instead, with the string
as argument.
this should be fine. it's a bit hacky, but so is fx_, and
it works. fx_ is used in several places to keep the sloccount
down, providing a common way to perform while loops on the
output of a command; that is its only purpose..
Signed-off-by: Leah Rowe <leah@libreboot.org>
We don't need to call it from git.sh, because it's
only being done when building a release anyway,
and we already run rmgit when doing a release.
The function itself is only two simple fx_ calls,
so we can just do that from build_release().
Signed-off-by: Leah Rowe <leah@libreboot.org>
in cbmk, it's only used from there.
in lbmk, it's also used from vendor.sh.
however, i plan to further expand git.sh at
some point, tidying it up so that git cloning
is also done from xbmkget, with dlop=git and
git.sh would then be renamed to get.sh
Signed-off-by: Leah Rowe <leah@libreboot.org>
it was too complicated. most of the logic has been moved
to a new function, try_file()
the for loop is handled by xbmkget(), whereas each try
is now handled in try_file()
Signed-off-by: Leah Rowe <leah@libreboot.org>
many places in cbmk used err, because older versions
of x_ did not handle globbing properly.
however, use of x_ is preferable on trivial commands.
the only time err() should be called is what it has
to be, when x_ can't work, or when a more useful error
message is needed, for context.
Signed-off-by: Leah Rowe <leah@libreboot.org>
right now, we assume "find", but it adds any number of
arguments next to that.
change it instead to support any command, where the
assumption is that it would generate a list of files
and directories.
Signed-off-by: Leah Rowe <leah@libreboot.org>
Generated by find, this is a wrapper in place of using
for loops everywhere. This simplification temporarily
increases the amount of code, because we don't do this
a lot, but this will reduce the growth of the build
system code size in future changes.
Signed-off-by: Leah Rowe <leah@libreboot.org>
Use fe_ with a new function, scankconfig, to do the
same thing. Not only is this simpler, it now also
operates on all coreboot configs for a given target,
whereas it previously only operated on the first one.
This is useful for cases where one config might use a
file that the other one does not; in practise, we don't
do this yet, but it's a theoretical possibility
Also: don't use the function check_defconfig, which is
now redundant and has been removed.
That function also conflicted with another function by
the same name in mk, but fortunately didn't cause an
issue in practise, due to how sh works; when vendor.sh
was used, it was without running the tree commands,
except under a separate lbmk instance.
So this is a simplification, a feature enhancement and
even a bug fix, all wrapped into one!
Signed-off-by: Leah Rowe <leah@libreboot.org>
It's completely unnecessary, and I forsee this
check breaking the build system at some point,
since some commands rely on the output of other
commands. Therefore, I've removed this check.
Signed-off-by: Leah Rowe <leah@libreboot.org>
fe_ returns an error on the find command, but we rely
on the only error ever being our intentional exit, upon
discovering files.
in singletree, the directory being checked was already
checked first, so we know it's safe not to err on find;
and find not reporting an error if no files are found is
ok.
on elfcheck, it's very much the same thing. In fact, we
very much want it to return 0 if the directory doesn't
exist, or if files don't exist within it.
Therefore, use fx_ which is designed for this use-case.
Quick re-cap: fx and fe execute a given function name with
each line outputting by find as an argument, each time. It
is somewhat similar in scope to find's -exec command.
We use fe_ as shorthand in several places all over lbmk.
Signed-off-by: Leah Rowe <leah@libreboot.org>
Some parts of lbmk set +u +e, to be reset later on
under normal conditions upon exit. We must ensure
such level of integrity in err() as well.
Signed-off-by: Leah Rowe <leah@libreboot.org>
Rely once again on err_, but still explicitly add an exit
just below, in case I made a mistake one day.
err() is essentially a trap that triggers in case I mess
up an error function, so that it doesn't reliably exit.
So, the idea is that everything calls err(), and err() is
almost never modified, or modified very carefully.
If error exits were ever broken, the result could be quite
unpredictable, so lbmk has very strict error handling, and
great care is taken to ensure that it does reliably exit.
Signed-off-by: Leah Rowe <leah@libreboot.org>
Don't directly call a variable. Call a function that
checks the variable instead.
The new err function also checks whether an exit was
actually done, and exits 1 if not.
If an exit was done by the given function, but the exit
was zero, this is also corrected to perform an exit 1.
This fixes a longstanding design flaw of lbmk.
Signed-off-by: Leah Rowe <leah@libreboot.org>
Always certainly redundant, since if -u -e isn't
set, it'll continue to exit anyway.
However, we want to be pedantic about this, since
the safety of lbmk relies entirely on this function
NOT misbehaving.
Signed-off-by: Leah Rowe <leah@libreboot.org>
this silences confusing error messages that the user
sees on the screen, that are actually benign, and it
will thus reduce the number of people who ask questions
on #libreboot irc
Signed-off-by: Leah Rowe <leah@libreboot.org>
In the mk script, we need fx_ to not return errors on the
find command, since it's searching a bunch of directories
where some of them may not exist.
All other instances where fx_ is used, must return an error
if the directory being searched doesn't exist.
For this, fe_() is introduced, which does the same as fx_
but with this much stricter check.
Signed-off-by: Leah Rowe <leah@libreboot.org>
We have a lot of places in lbmk where the output of find is
used, and then some function is executed on the result.
This is messy, and bloats several of these functions.
Now this is unified, into a new function: fx_
What fx_ does is execute a given function, for each result
found, with the arguments for a find command appended.
For example:
find -name ".git"
If you wanted to do: foo "$arg"
Where "arg" is a search result from find, and you wanted
to execute "foo" on each one, you would do:
fx_ foo -name ".git"
The find utility does have an -exec feature, but I've found
that it only works for executables, not functions.
fx_ does not return errors, so "foo" in this example
would have to do its own error handling.
Signed-off-by: Leah Rowe <leah@libreboot.org>
these functions make more sense in lib.sh
i made mk link lib.sh first, so that the
functions on init.sh can still use them.
Signed-off-by: Leah Rowe <leah@libreboot.org>
Leah Rowe