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Some scripts like lib.req rely on the fact that RPM_BUILD_ROOT
should not end with trailing slashes or something. Other
scripts like find-package explicitly assume that RPM_BUILD_ROOT
can be relocated within filesystem; they use something like
"real_buildroot" variables. The code gets complicated,
fragile, and error-prone.
Therefore, guys, hereby I FORBID non-canonical RPM_BUILD_ROOT path.
Note that RPM_BUILD_ROOT actually does not have to exist.
This is another problem...
$ less alterator-install-common-desktop-0.11-alt1.i586.rpm |grep help
-rwxr-xr-x 1 root root 972 Oct 30 18:38 /usr/share/alterator/help/ru_RU/basesystem.html
-rwxr-xr-x 1 root root 340 Oct 30 18:38 /usr/share/alterator/help/ru_RU/kbd.html
-rwxr-xr-x 1 root root 2233 Oct 30 18:38 /usr/share/alterator/help/ru_RU/license.html
-rwxr-xr-x 1 root root 1280 Oct 30 18:38 /usr/share/alterator/help/ru_RU/lilo.html
-rwxr-xr-x 1 root root 3032 Oct 30 18:38 /usr/share/alterator/help/ru_RU/network.html
-rwxr-xr-x 1 root root 4840 Oct 30 18:38 /usr/share/alterator/help/ru_RU/packages.html
-rwxr-xr-x 1 root root 1928 Oct 30 18:38 /usr/share/alterator/help/ru_RU/root.html
-rwxr-xr-x 1 root root 1387 Oct 30 18:38 /usr/share/alterator/help/ru_RU/time.html
-rwxr-xr-x 1 root root 1223 Oct 30 18:38 /usr/share/alterator/help/ru_RU/user.html
-rwxr-xr-x 1 root root 11024 Oct 30 18:38 /usr/share/alterator/help/ru_RU/vm.html
-rwxr-xr-x 1 root root 1789 Oct 30 18:38 /usr/share/alterator/help/ru_RU/x11.html
lrwxrwxrwx 1 root root 31 Oct 30 18:38 /usr/share/alterator/help/ru_UA -> /usr/share/alterator/help/ru_RU
$
%files ...
%_datadir/alterator/help/ru_RU/*
%_datadir/alterator/help/ru_UA
The package referes ru_RU directory but does not own the directory.
Old behaviour: unmet dependency.
> alterator-icons-lite-0.4.0-alt1 Requires(rpmlib) rpmlib(PayloadFilesHavePrefix) <= 4.0-1
> +alterator-install-common-desktop-0.11-alt1 Requires /usr/share/alterator/help/ru_RU
> alterator-install-common-desktop-0.11-alt1 Requires alterator-autoinstall
New behaviour: though the package does not explicitly own the directory,
it has some files packaged under the directory. Because of this, ru_UA
symlink will not be broken after install. We chose to be forgiving:
symlinks.req: WARNING: /usr/src/tmp/alterator-install2-desktop-buildroot/usr/share/alterator/help/ru_UA: directory /usr/share/alterator/help/ru_RU not owned by the package
Private libraries are the ones which have non-standard prefix.
We choose to produce file-level dependency (without braces) on
such private libraries in two cases: 1) either the library was
found under RPM_BUILD_ROOT; or 2) no versioned symbols are used
from the library (no versioned references).
This will also check if the link is not owned by any package,
but the path is provided by some package.
$ rpm -qf /usr/bin/python
warning: file /usr/bin/python is not owned by any package
$ rpm -q --whatprovides /usr/bin/python
python-base-2.4.4-alt13
$
This looks very much like an alternative, ESPECIALLY if an intermediate
path component, which is a link to directory (python is not the case).
This new condition is disabled, only a warning is issued.
We'll see if it should be enabled.
This will allow to relax rpm-build-* dependencies, hopefully without adding
new essential dependencies to rpm (note that rpm already depends on sh and
coreutils; now this also includes grep, and possibly should include sed,
awk, and gzip).
Consider mono-mcs package, which is mono C# compiler. Recently I added
dependency on rpm-build-mono to this package, to enable automatic support
for mono dependencies whenever mono compiler is used. Now the problem
is that rpm-build-mono depends on rpm-build (via /usr/lib/rpm/functions),
and rpm-build in turn requires a lot of packages, e.g. gcc and autotools,
for the purpose of populating base build environment.
To put it another way, the problem is that it is impossible to install
mono compiler (with automatic support for mono dependencies) without also
installing gcc and stuff, which is roughly 100M of unrelated packages.
This seems like a minor problem to me, since every "devel" package (including
compilers) can conventionally require base build environment. However,
Alexander Bokovoy argues that school kids desperately need mono-mcs compiler
on their desktops without gcc and another stuff from the base build environment!
The upshot is that possibly we want to relax rpm-build-* dependencies,
so that those "support for dependencies" packages do not require
full-fledged rpm-build. The easiest way to accomplish this is to
move /usr/lib/rpm/functions from rpm-build to rpm package. I also
choose to move /usr/lib/rpm/find-package as well, along with making
/usr/lib/rpm/.provides.sh, so that rpm-build-* packages depend on
something like /usr/lib/rpm(Fatal), not just rpm.
It seems that our /bin/bash interpreter does not have any "built-in"
functions by default.
$ bash -c 'foo() { :; }; set' |grep ' ()'
foo ()
$ bash -c 'set' |grep ' ()'
$
Thus funcions can be user-defined only. Generally, what was wrong
with this "function" check is that it was executed in shell.req context.
That is, since e.g. "Info" and "Fatal" are functions within shell.req,
all other dependencies on "Info" and "Fatal" were simply ignored.
This was wrong and this has now been fixed.
Another possibility to ignore current shell.req context while checking
for built-in things is to spawn "clean" shell instance:
- case "$(type -t -- "$2")" in
+ case "$($sh -c 'type -t "$1"' "$0" "$2")" in
But this can be rather expensive at this early "cleanup" stage.
