- `prepare_host()`: split; do checks earlier and allow them to be interactive
- introduce `exit_if_countdown_not_aborted()` for "Low Disk Space" and other critical conditions
- split `prepare_host()` into interactive & non-interactive parts
- split off `clean_deprecated_mountpoints()` from prepare into `cleaning.sh`
- introduce and use `reset_uid_owner_non_recursive()` for `.tmp` reset in trap, to avoid disasters
- add more logging sections to default-build.sh, avoid unlogged parts
- introduce generic `prepare_tmpfs_for()`, which manages it's own cleanup/dir removal
- use it for `WORKDIR` (which is `TMPDIR`) and `LOGDIR`
- adapt previous cleanup handlers for those, so they delete their contents but not the dir itself (which might be mounted)
- also: make `ARMBIAN_LOG_CLI_ID` readonly together with other superglobals
- set `XDG_RUNTIME_DIR` & `XDG_RUNTIME_DIR` together with `TMPDIR`
- kernel-make.sh: pass `CCACHE_TEMPDIR` down to Kernel make (thanks @the-Going)
- fix a bunch of quoting issues
- use runners for chroot stuff
- don't error out of failed disable
- makes building `sid` again possible
- add a bunch of TODO's
- consolidate at `prepare_python_and_pip()`
- sanity check for Python version 3.9+ regardless of HOSTRELEASE
- TODO: pip vs sudo/root: need pip 22.2+ to curb warning, not doing it
- .config is now compared with previous one byte-wise, diff shown, and mtime preserved directly via `cp -p`
- this does away with the previous mtime-based BS I had written during the fasthash era (and thus remove file-mtime.sh, regen lib)
- split some functions, to better control the interactive piece in the _middle_ of kernel config process
- no more `kernel_config_maybe_interactive()`, now `kernel_config()` that controls its own logging sections
- extract `kernel_determine_toolchain()` out of config into make
- introduce internal hook `armbian_kernel_config()` that runs before custom version (for .config defaults, coming soon)
- default `SHOW_LOG=yes` if user on terminal
- shortcut: `DEBUG=yes` defaults both `SHOW_LOG=yes` & `SHOW_DEBUG=yes`
- much simpler logging format for log file
- skip all display_alert()'s more verbose than DEBUG from logfile
- set `DEBUG=yes` to log everything again
- skip Markdown assets from being included in ANSI log
- use of `ccze`
- introduce internal var for controlling COMMAND-level log
- remove unused `run_on_sdcard()` that somehow was left there
- drop `export_html_logs()` and `EXPORT_HTML_LOG` -- are no more
- remove a lot of hopefully / hardly confirmed, unused dependencies
- don't use crossbuild-essential-xxx; avoid the c++ compiler that comes with it, install gcc-only instead
- hostdeps: use `libc6-dev make dpkg-dev gcc` (without `g++`) instead of `build-essential`
- drop `btrfs-progs` and `f2fs-tools` (@TODO add in extension when/whereused)
- more: drop `cryptsetup` (@TODO add in extension when/whereused)
- don't be too quiet when doing apt-update for hostdeps
