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it installs one or more, so should be plural for clarity
Gbp-Dch: Short
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some scripts temporarily install packages to accomplish some work before
then removing them. the list of packages installed is kept in memory in a
variable.
a weakness of this design is that if a failure occurs or the user cancels,
and then following this the user re-runs `lb build`, letting it try to
pick up and recover from where it left off, that list of packages that had
been installed is lost, resulting in those packages that were installed
then being a permanent part of the chroot.
here we fix this weakness by backing up the list to a file, which is always
read from on removal. thus in a recovery situation, any packages still
installed from a situation like that just described, will be removed upon
the next use of `Remove_package()`.
this is not perfect, since we are having to wait for opportunistic
execution of the remove function. we need to find a suitable place for the
`Cleanup_temp_packages()` function to be used.
- doing so in `Init_config_data()` would not be suitable because we don't
hold the lock when that's run, even if we ignored the hijacking of that
function for taking such action...
- doing it in `Exit()` doesn't seem a good fit either.
- putting it explicitly in every build script just seems a little messy...
perhaps a local exit trap like for removing the lock...?
note that `binary_rootfs` skips running the remove function after installing
tooling, since it just throws the wrapper chroot away, which then leaves the
file around with stale data for the next remove instance to pick up, which
then does not actually remove it because it's not installed. this is not
ideal either... perhaps the optimisation should be removed from that script?
Gbp-Dch: Short
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after handling arguments, catch and report any remaining "non-option"
arguments.
for instance users could make the basic mistake of using
`lb config --bootloaders syslinux grub-efi`, i.e. failing to quote the
multiple bootloaders (i actually encountered a user doing this who swore
that "it just worked"). catching and reporting such mistakes could be
valuable to users.
previous behaviour:
```
$ lb config --bootloaders syslinux grub-efi
P: Updating config tree for a debian/buster/amd64 system
P: Symlinking hooks...
```
new behaviour:
```
$ lb config --bootloaders syslinux grub-efi
[2020-05-05 18:56:07] lb config --bootloaders syslinux grub-efi
E: Unexpected argument found: grub-efi
```
Gbp-Dch: Short
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debootstrap must obviously exist in the host. we thus must pass 'host'
not 'chroot' such that a warning about needing to install it on your host
system is output, rather than it being added to a list of packages to be
installed, which never occurs in this script.
Gbp-Dch: Ignore
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when loopback support was introduced, it initially duplicated the code
for generating a grub2 config, before the duplicated code was removed from
the grub-pc script, effectively thus moving grub config generation to the
loopback feature script.
grub-efi support was added after this.
this results in a misleading filename, since the `binary_loopback_cfg`
script is essential for use of grub-pc|grub-efi, and actually only has a
single line of code on top that's needed for adding actual loopback
support on top. (when grub-pc and grub-efi are not used, the entire script
is still needed for loopback support to work).
so here we rename it to make better sense, and correct/clarify bits of
documentation.
Gbp-Dch: Short
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with LB_BOOTLOADER_BIOS and LB_BOOTLOADER_EFI introduced, we can simplify
and correct things here.
previously it was possible for more than one of each type to be added.
Gbp-Dch: Short
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the design choice from when EFI support was introduced was to change
`--bootloader` to `--bootloaders`, with users specifying their selection
of BIOS and EFI bootloaders together. at this time there were not even any
decent validation checks being performed, and invalid combinations could
cause some chaos.
since then proper validation was put in place, including checking that
only a single instance of each of BIOS and EFI bootloaders exists in the
selection.
here we tweak things such that we stick with the same option, but we split
the selection up such that we store the BIOS and EFI selections separately
within the saved config file, and offer it up to scripts to help simplify
those scripts.
we must however retain support for splitting from the combined option,
both because we still use it in the combined option, and for backwards
compatibility with older saved configs.
Gbp-Dch: Short
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thus far, config bootloader validation only did the basic check that each
bootloader specified was a known and supported bootloader, it did not check
combinations.
it now checks combinations, and strips out the previous "bootloader role"
stuff.
the no-bootloaders warning is duplicated, covering two slightly different
situations (empty string, and whitespace string). this is anticipated to
be just temporary, with this just being the first step in better handling
bootloader selections.
Gbp-Dch: Short
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the "FIXME" function wrapper is just to temporarily disable the code.
Gbp-Dch: Ignore
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Gbp-Dch: Ignore
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"grub" presumably was what is now called "grub-legacy"
removed both because there is already a proper piece of code adding
bootloader packages.
Gbp-Dch: Ignore
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Gbp-Dch: Ignore
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while `lb build` ran the config validation check, spotting invalid configs
and stopping with an error, the major build stages if executed directly did
not, nor did the component stages.
here we move execution of the validation function into the common init
function, with an exported variable used to indicate that validation has
been performed. thus validation is performed no matter what part of the
build system you execute, but only once.
Gbp-Dch: Short
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Gbp-Dch: Ignore
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`Init_config_data` is more suited to build scripts than here. note that
it's not used in `config` either. this deliberately does not pass along
arguments to it because `Arguments()` can only handle the basic common
options, not the `clean` set. this is somewhat confusing and causes a
pointless execution of `getopt`. furthermore the function is expanding
slightly further beyond it's original scope, with yet more change coming
that's unsuitable for `clean`, so it makes sense to avoid using the
function here just for the couple of function calls needed.
validation of the config is disabled, as it is not performed currently.
it is not clear if it should be enabled or not for `clean`. it may be
useful to not validate, if we wish to be able to provide users with an
option to be able to delete the config.
Gbp-Dch: Ignore
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using `$VERSION` as part of the default `$LB_ISO_PREPARER` means that when
you simply run `lb config` once, this variable is stored as a part of the
string, and replaced on use, but if you run `lb config` twice, it gets
replaced with a fixed version, that is then used in all subsequent builds.
let's replace with a placeholder (`@LB_VERSION@`) that can be used both in
the default, or in user strings, and will be replaced on use only.
this means that subsequent builds will always reflect the actual version
of live-build used.
Gbp-Dch: Ignore
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Gbp-Dch: Ignore
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`DATE_UTC_OPTION` is set in `Prepare_config()` for use by scripts, even
though only a few scripts will actually use it, since it allows those
scripts to be cleaner. we may want to possibly extend this as a
`DATE_OPTIONS` variable perhaps as part of enabling proper reproduciblity.
Gbp-Dch: Short
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since date is not obtained as UTC, timezone is an important detail of
understanding the given time, which users may want to make use of.
Gbp-Dch: Short
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don't construct each part from a fresh "now", which can result in
inaccuracies in the overall date due to "now" drifting over the individual
date calls. instead feed the full date that was obtained back into it when
extracting the component parts.
Gbp-Dch: Ignore
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broken since it's introduction in 9ffb223d703a4bbb76e5278e59b3cc183f2f1aca
Gbp-Dch: Short
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Gbp-Dch: Ignore
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- the definition of $PROGRAM as used in $USAGE strings defined in each
script has been broken for a long time, being simply "lb" when it needs
to be "lb COMMAND".
- `config` changed $PROGRAM to "lb config" thus its output was correct in
this regard unlike everything else, but with the switch to a more
"intelligent" `Man()` function recently, it means that instead of
`man lb config`, what was actually run was `man lb config config`,
which displayed the manpage, then on exiting with `q`, it showed some
sort of index line todo with a "config" search (no exact manpage
match?), for which you had to enter `ctrl+c` to get rid of.
this revises things to fix the issues, minimising change by changing
$PROGRAM to "lb COMMAND", with the frontend overriding this.
Gbp-Dch: Ignore
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Gbp-Dch: Ignore
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did not properly consider all usage cases properly in deciding placement.
this captured `--usage` in `$PROGRAM --usage` as the action for instance.
Gbp-Dch: Ignore
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Gbp-Dch: Ignore
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Gbp-Dch: Ignore
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these should be bypassing the possibility of running the auto script
surely, just like how this is done for `--all`, otherwise you pass through
the auto file twice.
Gbp-Dch: Ignore
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- detect lack of options using actual arg count rather than first arg
being an empty string.
- fix string splitting issues by looping properly on "${@}"
- tidier
Gbp-Dch: Ignore
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- added and used Stagefiles_dir()
- added and used Stagefile_exists()
pretty self explanatory.
Gbp-Dch: Short
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for bootstrap, the check is moved to the case statement for greater
robustness, and for consistency with other scripts.
Gbp-Dch: Ignore
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...alongside printing usage (which is perhaps unnecessary), so that it is
actually clear to users that a problem occurred, and what.
and capture it before option processing of remaining args.
Gbp-Dch: Ignore
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- it's only used by the debootstrap script after alternatives were dropped
long ago, so let's move it, avoiding it being loaded for everything
else.
- there's no need to pass printing another message through it.
- there's little point in making the sid distinction if you happen to
decide to build sid, it's a given that it's less stable than stable.
really, is there any need for this at all?
Gbp-Dch: Ignore
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Gbp-Dch: Ignore
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for better encapsulation, and for consistency with other config file
handling functions in the new location.
Gbp-Dch: Ignore
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in tweaking a previous commit to remove some excessive change before
submission, i mistakenly identified the part of the sed replacement
restored here as being unnecessary to its functionality, but in fact it is.
without it the placeholder is not actually removed.
the lack of removal of the placeholder meant that you ended up with
duplicate copies of the live menu entries.
Gbp-Dch: Ignore
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more fitting now that we've moved the advanced installer entries
out to a different submenu, leaving just memtest (and HDT on
syslinux).
the advanced.cfg file is also renamed to utilities.cfg in the syslinux
case, but in a backwards compatible way of moving the user advanced.cfg
file over the new one, if the user provides a file with the old name.
alternatively we could just leave the old name in place, but that would be
a little odd.
Gbp-Dch: Short
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This is considered to be more robust.
Two instances remain:
scripts/build/chroot_archives, line 257:
if [ "${LB_APT}" = "aptitude" ] && [ ! $(Chroot chroot "which aptitude") ]
The command is run inside a chroot where the environment might be special,
and would need further testing.
manpages/Makefile, line 42:
@if [ ! -x "$$(which po4a 2>/dev/null)" ]; \
I am insufficiently familiar with makefile syntax to edit this.
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instead of cramming the live entries into a string via a layer of functions
for terminating entries with newlines, which we then have to run through
perl to tweak the newlines for correct use with sed... let's write the
entries to a temp file, then use that file in the sed replacement.
the helper functions injecting newlines to the end of entries as they were
built into a long string have obviously become unnecessary and so were
removed. one function was renamed for reasons of consistency and clarity.
the file is initially deleted before use for reasons of wanting to bullet
proof the codebase to work properly under conditions of recovering from
failure/cancellation, `--force` re-running and such.
this removes the last use of perl.
Gbp-Dch: Short
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Gbp-Dch: Ignore
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it reported: "possible bashism in scripts/build/binary_loopback_cfg line 284 (should be '.', not 'source')"
which is clearly a misidentification.
Gbp-Dch: Ignore
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robustification is required to not just `--force` but recovery from failure
or user cancellation.
Gbp-Dch: Short
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partly lost in some adjustments that were made to the submitted work,
which was focused on restoring the 'start installer' entry.
there is no need for dynamic setting of these two `source` imports in the
default file, in fact user modifications should also use the fixed import
commands in future.
note that the old placeholders however remain replaced, which inject
precisely this string, for backwards compatibility.
Gbp-Dch: Ignore
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during testing i encountered an unexpected error resulting from the
following condition:
- bootstrap was cached
- cache of bootstrap packages was empty (from playing with `lb clean`)
- installer was not none|live
everything works fine up until the main installer script, which comes to
an abrupt halt with an error due to the missing cached bootstrap packages
that it wants to copy.
this situation is easy to unintentionally create, as i managed to do.
here we catch the failure condition, correcting for it.
this is done by checking for the missing cached packages when restoring
the bootstrap from the cache, and skipping this if the packages were
missing, thus forcing the bootstrap to be rebuilt. the packages should
then be found within the cache, allowing the installer stage to complete
successfully.
of course the bootstrap stage will only cache the packages if caching is
enabled, but if caching is disabled and installer enabled, the config
validation will catch that, reporting that problem.
Gbp-Dch: Short
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Gbp-Dch: Ignore
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install mode was silent when selinux was not enabled, whilst remove mode
always output a "Begin unmounting..." message. this makes both modes silent
when selinux is not enabled.
this also happens to fix an unintended side effect of
d79c96232b40fb082233c97ac8d4f75b821ecefe whereby a warning subsequently
was always emitted in remove mode when selinux was not in use, which was
not ideal.
Gbp-Dch: Short
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