* Two new functions for getting a list of files and their timestamps
in the repo, and diffing that information to get a list of changed
files: pmb.helpers.repo.files() and pmb.helpers.repo.diff().
(I've put it in the helpers folder, because it is not specific to
one chroot, but to all chroots at once.)
* pmbootstrap challenge (new command introduced a few commits back to
verify, that the contents of an APK file are deterministic) uses
these functions to a) support subpackages and b) optionally
output a list of changed files (this gets used in the pmbuilder
script, which lives outside of this repository).
This commit is progress for #64 again.
We have "lazy reproducible builds" now. What I mean by that is, that
the resulting "apk" archive is not fully reproducible, but all binaries
inside it are. This is necessary to kick-off the binary repo, which is
in turn required to get the testsuite going on Travis. Read #64 for more
information.
Usage:
```
pmbootstrap build hello-world --buildinfo
pmbootstrap challenge /tmp/path/to/hello-world-1-r2.apk
```
The "--buildinfo" parameter generates a "buildinfo.json", which contains
the versions of all dependencies. It is not very optimizied, so this
is a performance bottleneck and takes 10 seconds (which is quite much
considering that the hello-world package builds in less than a second).
This can be improved in the future, and then the buildinfo parameter
may become the default.
* allows to build/extract/list initramfs, add/del hook
* rebuild the initfs whenever running install or trying to flash/boot it
* flasher flash/boot: automatically set up a minimal rootfs with kernel and initfs,
if it does not exist yet
pmb.chroot.apk.installed() used to return only the explicitly installed
packages. This is not good enough for the initfs check functions (and
especially for the "lazy reproducible builds", from which branch this
commit was cherry picked).
This commit introduces more noise for the logfile - if this becomes
a problem, raise your voice in the issues tracker and we'll do something
about it.
(This commit also changes minor code styling in other files, I did
not run autopep8 last time, because flake8 didn't complain...)
...also increase the default line count to 30, so it's easier to
spot an error if you didn't have the log open when it happened.
This parameter also works for 'pmbootstrap log_distccd', for consistency.
Oliver Smith