When using file:// mirrors, rootfs.py will spawn a local HTTP
server at 127.0.0.1.
In combination with --qemu, this poses a problem: downloads
on the host machine will work, but downloads on the guest
machine will not reach the local server.
This commit introduces a change to rewrite the address to
10.0.2.2 inside the guest, only when QEMU=True is set in
the configuration, allowing this combination to build
past the get_network improvement step.
Ever since an old patch version, it has (for reasonable security
reasons) not supported patched with ../ in the filename.
Many of our patches have been relying on this behaviour being OK,
because we start off with an ancient patch version that didn't perform
such checks. As soon as we need this behaviour after we build a newer
patch though, we will have problems.
So, let's change the policy.
Patches are relative to where tarballs are extracted, rather than the
"working directory" - e.g. have patches for `coreutils-9.4/src/cp.c`
instead of `src/cp.c`.
Keeping this consistent has a few implications;
- patches are applied from the build/ directory in bash era now, with
`-p0`
- when patches are manually applied in the bash era, use `-p` as
required, usually `-p1`
- in kaem era where patches are always manually applied, `-p1` is used
Because src_get was never unset at the end of a build, it would propagate to subsequent builds until it would be either overridden again, or cleared by a new bash process starting (either due to a jump step or a new version of bash being built).
Thus, kexec-linux's override of src_get to a no-op would stay in effect in chroot mode until musl-1.2.4 phase2's override restored src_get's functionality. This override is actually obsolete, since musl-1.2.4's source code is now preserved across the Linux kexec via a different mechanism - but removing it mysteriously broke downloading bash-5.2.15 due to kexec-linux's override still being in effect.
If multiple URLs are entered in a sources listing for the same file,
each will be tried in turn, until either one succeeds, or we fail
having run out of mirrors.
Before the simplify refactor, the convention was to name the first
or default build script "<package name>.sh". The refactor changed
this default to "pass1.sh", with "pass2.sh" and so on used for
subsequent passes. This wasn't an issue when building usig scripts
generated by script-generator (which explicitly declares the build
script to use), but broke running "build <package name>" without
an explicit script name from the post-bootstrap bash prompt.
By deriving the script name from the current revision/pass number,
this commit restores that functionality.
An unfortunate blemish is that we number build scripts from 1, but
repo tarballs from 0 - it would be nice to standardize on a single
indexing convention.
- This idea originates from very early in the project and was, at the
time, a very easy way to categorise things.
- Now, it doesn't really make much sense - it is fairly arbitary, often
occuring when there is a change in kernel, but not from builder-hex0
to fiwix, and sysb is in reality completely unnecessary.
- In short, the sys* stuff is a bit of a mess that makes the project
more difficult to understand.
- This puts everything down into one folder and has a manifest file that
is used to generate the build scripts on the fly rather than using
coded scripts.
- This is created in the "seed" stage.
stage0-posix -- (calls) --> seed -- (generates) --> main steps
Alongside this change there are a variety of other smaller fixups to the
general structure of the live-bootstrap rootfs.
- Creating a rootfs has become much simpler and is defined as code in
go.sh. The new structure, for an about-to-be booted system, is
/
-- /steps (direct copy of steps/)
-- /distfiles (direct copy of distfiles/)
-- all files from seed/*
-- all files from seed/stage0-posix/*
- There is no longer such a thing as /usr/include/musl, this didn't
really make any sense, as musl is the final libc used. Rather, to
separate musl and mes, we have /usr/include/mes, which is much easier
to work with.
- This also makes mes easier to blow away later.
- A few things that weren't properly in packages have been changed;
checksum-transcriber, simple-patch, kexec-fiwix have all been given
fully qualified package names.
- Highly breaking change, scripts now exist in their package directory
but NOT WITH THE packagename.sh. Rather, they use pass1.sh, pass2.sh,
etc. This avoids manual definition of passes.
- Ditto with patches; default directory is patches, but then any patch
series specific to a pass are named patches-passX.
