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in some cases, on a fresh clone, the cached repo already
exists but lbmk tries to download it again. work around
this by checking that the directory exists; it's in the
main if statement, so that the "else" still applies. as
a result, the fallback to a live repo would un-fall back
to doing git-pull if the cached directory exists exists.
if it doesn't seem to make sense, it's because it doesn't.
this whole function needs to be rewritten better.
Signed-off-by: Leah Rowe <leah@libreboot.org>
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needed when compiling u-boot
Signed-off-by: Leah Rowe <leah@libreboot.org>
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Signed-off-by: Leah Rowe <leah@libreboot.org>
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XBMK_CACHE is now used, instead of hardcoding cache/
this is exported initialised to cache/, if unset.
this means you can set your own directory, and it means
./update release will use the same directory.
this means bandwidth wastage is further avoided.
Signed-off-by: Leah Rowe <leah@libreboot.org>
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Signed-off-by: Leah Rowe <leah@libreboot.org>
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the || : condition should be used, whereas i just
wrote : by mistake. this was done in a previous change.
fix it now.
Signed-off-by: Leah Rowe <leah@libreboot.org>
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a previous change made it more redundant, falling back
on old behaviour (direct downloading, not cached), but
the way it's done means that the function never returns
an error condition in practise.
this patch fixes it.
Signed-off-by: Leah Rowe <leah@libreboot.org>
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hash/ becomes cache/hash/
repo/ becomes cache/repo/
Signed-off-by: Leah Rowe <leah@libreboot.org>
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if doing a retry, the directory may still exist, which
would make git clone yield an error response; the existing
directory will have been the one that failed to reset, so
let's delete it.
the one deleted is not the cache (repo/PROJECT/), thus
otherwise maintaining current behaviour.
Signed-off-by: Leah Rowe <leah@libreboot.org>
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normally, a project is cached at repo/PROJECT/, and
cloned from there to the final destination.
errors lead to a calling of $err, but this will result
in a return if done from inside a subshell, of non-zero
value, so use this to re-try with a 6th argument when
calling tmpclone().
in most cases, this fallback will never kick in, but
it will kick in resetting or patching the cached clone
fails; specifically, we are interested in the reset part.
a given project name may change repositories in lbmk at
a given time. if this happens, and the old one is cached,
the overall result of this patch is that lbmk will fall
back to the old behaviour, where git urls are tried
directly, without caching.
Signed-off-by: Leah Rowe <leah@libreboot.org>
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mitigate jittery internet connections
Signed-off-by: Leah Rowe <leah@libreboot.org>
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actual source code is not scanned, but config directories are
scanned. simply get the checksum of each file under config/
pertaining to a given project/tree, and also for the given
target. coreboot utilities are also handled.
if it changes, in any way, delete and re-build automatically.
such deletions should probably still be done manually, as part
of understanding the build system, but this change should make
the build system much easier to use during development.
Signed-off-by: Leah Rowe <leah@libreboot.org>
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re-use repo/project/
this means that single- and multi-tree projects now
have a unified cached git repo location, as per the
new rules, thus saving on disk space usage.
Signed-off-by: Leah Rowe <leah@libreboot.org>
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do it based on the URL, e.g. https://review.coreboot.org/coreboot
becomes repo/coreboot
the downside is if you have two projects with repo urls specifying
the same string at the end, but this isn't the case at the moment
and likely won't be the case, but it's a theoretical issue.
this saves on bandwidth when downloading identical submodule repos
between multiple trees within the same multi-tree project
for example, coreboot 3rdparty/vboot is no longer downloaded more
than once, instead cloned locally on subsequent downloads.
if repo/DIR exists, git-pull is attempted, but errors do not result
in a non-zero exit, by design.
Signed-off-by: Leah Rowe <leah@libreboot.org>
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Signed-off-by: Leah Rowe <leah@libreboot.org>
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files under include/ should never be executed directly
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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some of the variables only initialised in git.sh are
also used in the trees script, which is technically ok
because git.sh is included from the trees script, but
it makes more sense to declare them in the latter.
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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loc is already set, and will correspond to the same
path, so we can quite conveniently use it.
Signed-off-by: Leah Rowe <leah@libreboot.org>
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Signed-off-by: Leah Rowe <leah@libreboot.org>
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it's already defined inside the trees script
Signed-off-by: Leah Rowe <leah@libreboot.org>
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when downloading multi-tree projects, the rev can be reset
to HEAD instead of the actual rev for a given target. this
occurs when the bare repo (e.g. src/coreboot/coreboot) does
not exist and has to be downloaded first.
bare repository downloading does not rely on target.cfg, in
this context, only pkg.cfg, but it uses the same variable
names (e.g. "rev").
instead of using a separate variable name, thus increasing
code complexity (which is the exact opposite of what i want
to do), do the bare repository download first.
this means that the git.sh script is much cleaner now, for
multi-tree projects, in that it *only* copies the bare repo
then runs git_prep; in that context, the bare repo is cloned
directly by calling the relevant function from script/trees,
which is the same behaviour as when cloning single-tree
project sources.
Signed-off-by: Leah Rowe <leah@libreboot.org>
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the same function that loads configurations for single-tree
projects has been merged with the function for multi-tree
configs in git.sh, and that functionality has been removed
from git.sh; now it is all unified in the trees script.
as the saying goes: write one program to do one thing well.
the purpose of git.sh is to download source code, but not
to handle configuration files; the latter is meant to be
handled by the trees script, which then calls into git.sh
before running the build logic for that given project.
additionally: the "seen" files are no longer handled, at all.
the logic there was added ages ago, because at the time, i was
considering whether to separate configuration into a new
repository, so that users could more easily make their own
configuration, so it was a guard against misconfiguration.
however, that decision was canceled and we're always very
careful not to introduce a loop; if a loop does occur, the
worst that can possibly happen is you waste some CPU cycles.
Instead, print (on standard output) what config file is being
used, so the operator can see when an infinite loop occurs.
ALSO:
remove _setcfgarg in load_project_config()
it was used to skip when a target.cfg file didn't exist,
specifically on single-tree projects, but this is now
handled using -f instead, on the while loop inside that
function, so _setcfgarg is now a redundant variable.
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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the trees script itself will check that the directory
exists, and exit with zero status if it does, without
doing anything else other than the return.
Signed-off-by: Leah Rowe <leah@libreboot.org>
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don't have a separate variable for them.
just export them directly and use them directly.
Signed-off-by: Leah Rowe <leah@libreboot.org>
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Signed-off-by: Leah Rowe <leah@libreboot.org>
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replace it with logic that simply uses "." to load
files directly. for this, "vcfg" is added as a variable
in coreboot target.cfg files, referring to a directory
in config/vendor/ containing a file named pkg.cfg, and
this file then contains the same variables as the
erstwhile config/vendor/sources
config/git files are now directories, also containing
pkg.cfg files each with the same variables as before,
such as repository link and commit hash
this change results in a noticeable reduction in code
complexity within the build system.
unified reading of config files: new function setcfg()
added to lib.sh
setcfg checks if a config exists. if a 2nd argument is
passed, it is used as a return value for eval, otherwise
a string calling err is passed. setcfg output is passed
through eval, to set strings based on config; eval must
be used, so that the variables are set within the same
scope, otherwise they'd be set within setcfg which could
lead to some whacky results.
there's still a bit more more to do, but this single change
results in a substantial reduction in code complexity.
Signed-off-by: Leah Rowe <leah@libreboot.org>
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i tried to be clever with this one, but it just made
the script exit with an error.
revert back to the old check (check whether one of
either repo or repo backup is set)
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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new function chkvars() does the job
Signed-off-by: Leah Rowe <leah@libreboot.org>
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Signed-off-by: Leah Rowe <leah@libreboot.org>
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this for loop is a hack to make sure that all the
sources get nuked (using nuke.list files).
hide the messages so that they do not appear when
running just any command in the trees script.
Signed-off-by: Leah Rowe <leah@libreboot.org>
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downloading it after means that if an error occurs
when downloading the xtree project, the main project
will still be there and nothing will mandate the
downloading of the xtree project. whereas, if we
grab the xtree project first, then the main project
won't get saved to src/
this makes the build system a bit more resilient under
fault conditions, but otherwise doesn't change behaviour.
Signed-off-by: Leah Rowe <leah@libreboot.org>
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i accidentally forgot to include src/ in the prefix
Signed-off-by: Leah Rowe <leah@libreboot.org>
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it's a very compact nuke
Signed-off-by: Leah Rowe <leah@libreboot.org>
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Signed-off-by: Leah Rowe <leah@libreboot.org>
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do not over-engineer such a trivial thing.
seriously. all we're doing is nuking some files.
Signed-off-by: Leah Rowe <leah@libreboot.org>
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when we download coreboot, we currently don't have a way to
download crossgcc tarballs, so we rely on coreboot to do it,
which means running the coreboot build system to do it; which
means we don't get them in release archives, unless we add
very hacky logic (which did exist and was removed).
the problem with coreboot's build system is that it does not
define backup links for each given tarball, instead relying
on gnu.org exclusively, which seems OK at first because the
gnu.org links actually return an HTTP 302 response leading
to a random mirror, HOWEVER:
the gnu.org 302 redirect often fails, and the download fails,
causing an error. a mitigation for this has been to patch the
coreboot build system to download directly from a single mirror
that is reliable (in our case mirrorservice.org).
while this mitigation mostly works, it's not redundant; the
kent mirror is occasionally down too, and again we still have
the problem of not being able to cleanly provide crossgcc
tarballs inside release archives.
do it in config/submodules, like so:
module.list shall say the relative path of a given file,
once downloaded, relative to the given source tree.
module.cfg shall be re-used, in the same way as for git
submodules, but:
subfile="url"
subfile_bkup="backup url"
do this, instead of:
subrepo="url"
subrepo_bkup="backup url"
example entries in module.list:
util/crossgcc/tarballs/binutils-2.41.tar.xz
util/crossgcc/tarballs/gcc-13.2.0.tar.xz
util/crossgcc/tarballs/gmp-6.3.0.tar.xz
util/crossgcc/tarballs/mpc-1.3.1.tar.gz
util/crossgcc/tarballs/mpfr-4.2.1.tar.xz
util/crossgcc/tarballs/nasm-2.16.01.tar.bz2
util/crossgcc/tarballs/R06_28_23.tar.gz
the "subrev" variable (in module.cfg) has been renamed
to "subhash", so that this makes sense, and that name is
common to both subfile/subrepo.
the download logic from the vendor scripts has been re-used
for this purpose, and it verifies files using sha512sum.
therefore:
when specifying subrepo(git submodule), subhash will still
be a sha1 checksum, but:
when specifying subfile(file, e.g. tarball), subhash will
be a sha512 checksum
the logic for both (subrepo and subfile) is unified, and
has this rule:
subrepo* and subfile* must never *both* be declared.
the actual configuration of coreboot crossgcc tarballs
will be done in a follow-up commit. this commit simply
modifies the code to accomodate this.
over time, this feature could be used for many other files
within source trees, and could perhaps be expanded to allow
extracting source tarballs in leiu of git repositories, but
the latter is not yet required and thus not implemented.
Signed-off-by: Leah Rowe <leah@libreboot.org>
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Signed-off-by: Leah Rowe <leah@libreboot.org>
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i accidentally cloned to tmpdir rather than tmpgit
oops!
Signed-off-by: Leah Rowe <leah@libreboot.org>
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