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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>
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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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Signed-off-by: Leah Rowe <leah@libreboot.org>
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Signed-off-by: Leah Rowe <leah@libreboot.org>
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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>
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Signed-off-by: Leah Rowe <leah@libreboot.org>
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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>
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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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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>
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these were missed in a previous cleanup
Signed-off-by: Leah Rowe <leah@libreboot.org>
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Use this for the sha512sum command, on the main mk
script at the function check_project_hashes().
Signed-off-by: Leah Rowe <leah@libreboot.org>
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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>
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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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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>
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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>
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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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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 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>
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Just to let the user know lbmk hasn't died.
Signed-off-by: Leah Rowe <leah@libreboot.org>
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don't declare it globally, because it's only used here
Signed-off-by: Leah Rowe <leah@libreboot.org>
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move them where they are used, or if they are used
in many places, move them to lib.sh
Signed-off-by: Leah Rowe <leah@libreboot.org>
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rename it to bad_checksum, so that its use makes more sense
Signed-off-by: Leah Rowe <leah@libreboot.org>
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it is primarily used there, and then in mk,
but only after git.sh is sourced.
Signed-off-by: Leah Rowe <leah@libreboot.org>
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it is only ever used there, so move it there
Signed-off-by: Leah Rowe <leah@libreboot.org>
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move non-init functions to lib.sh
Signed-off-by: Leah Rowe <leah@libreboot.org>
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this is in prep for the next change, where non-init
functions will be moved to another file, again named
include/lib.sh
Signed-off-by: Leah Rowe <leah@libreboot.org>
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a lot of init code was handled outside of any function. the
coding style used in the rest of the build system has now
been introduced, with xbmk_init being the main function.
Signed-off-by: Leah Rowe <leah@libreboot.org>
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Signed-off-by: Leah Rowe <leah@libreboot.org>
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In the previous revision, I make hardcoded use of
/usr/local/bin and /usr/bin as search locations, instead
of relying on PATH, when the user has a python venv, because
in those cases, we cannot rely on PATH so we use a python
command to detect the venv and then force use of the
normal system path for python.
However, there's no guarantee that the real Python will
indeed live at these locations. For example, some distros
like Nix or Guix will use many locations for different
versions of a given package, and it's for the birds as to
what given package version the user might be running.
Therefore, this patch retains that current hardcoded
assumption of /usr/local/bin and /usr/bin but *only* as
a fallback solution, instead checking realpath first.
The "realpath" command isn't technically POSIX standard,
but in practise it is available on GNU coreutils, Busybox,
and the various BSD userlands.
I could perhaps *import* a realpath utility, and use that,
but this should be fine.
Signed-off-by: Leah Rowe <leah@libreboot.org>
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If the user has a virtual environment, the current logic
will cause lbmk to hang. A useful workaround is to force
use of the direct path to the system binary of python.
This works by detecting a virtual environment first, and
deferring to the old behaviour if no venv is found. If one
is found, then it will not rely on PATH, but instead only
search the standard locations /usr/local/bin and /usr/bin.
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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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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Signed-off-by: Leah Rowe <leah@libreboot.org>
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alper made a fix to this file a few hours ago, but
forgot to update the copyright header
i'm doing it for alper, as a courtesy
Signed-off-by: Leah Rowe <leah@libreboot.org>
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Properly set $pyver to "3" when we detect we can use python3. In the
following version checks, use the $python we detected instead of a
'python' from PATH because the latter might be a python2 while still
co-existing with a python3.
Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
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initialising variables, setting PWD, setting version,
this is all unnecessary before the root check, because
the dependencies commands use none of these.
Signed-off-by: Leah Rowe <leah@libreboot.org>
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Signed-off-by: Leah Rowe <leah@libreboot.org>
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we don't need python before the root check
principle of least privilege
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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lbmk creates TMPDIR as /tmp/xbmk_*, but it's theoretically
possible that something could re-export it by mistake.
this change retains the same initialisation, but further
use is now via a new variable "xbmktmp", that stores the
value of TMPDIR upon lbmk's initialisation of it.
this reduces the chance of such a bug in the future, as
described above, so it is a preemptive/preventative fix.
Signed-off-by: Leah Rowe <leah@libreboot.org>
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There was no error handling, *at all*, on the actual tar
command, due to the lack of set -o pipefail, which we cannot
rely on in sh.
The x_ wrapper can be used in this case, as a mitigation.
Signed-off-by: Leah Rowe <leah@libreboot.org>
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