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We did this in some but not all cases, assuming the 0 value coming out of
libarchive would not be a problem. However, this does not work for "fake"
filesystems such as rpc_pipefs, which reports a free block and total block
count of zero.
Fix this by not ever counting symlinks or directories, and adding a note
explaining that if we someday do count directories, their size needs to be
attributed to the proper place.
This patch also includes a few cleanups/performance tweaks- avoid calling
strlen() on the mountpoint directory string as much by storing this size in
our mountpoint struct, and push the snprintf() call up to the calculate
functions since we were already doing it here in the remove case.
Signed-off-by: Dan McGee <dan@archlinux.org>
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libarchive eventually calls it anyway, but backtraces make a lot more sense
if we call it, as well as matching our precedent from alpm_pkg_load().
Signed-off-by: Dan McGee <dan@archlinux.org>
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This is helpful anyway to the user, and should also be helpful to us if we
see problems cropping up in the check during development.
Also add a missing ->used = 0 initialization in the code path less taken.
Signed-off-by: Dan McGee <dan@archlinux.org>
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We were checking if a package existed locally, but then using the
incoming package to calculate removed size rather than the currently
installed package.
Also adjust the local variable in the replaces loop to make it more
clear that we are always dealing with local packages here.
Signed-off-by: Dan McGee <dan@archlinux.org>
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All of these can be done with integer division; the only slightly
interesting part is ensuring we round up like before with calling the
ceil() function.
We can also remove the math library from requirements; now that the only
ceil() calls are gone, we don't need this anymore.
Signed-off-by: Dan McGee <dan@archlinux.org>
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None of these warn at the normal "-Wall -Werror" level, but casts do occur
that we are fine with. Make them explicit to silence some warnings when
using "-Wconversion".
Signed-off-by: Dan McGee <dan@archlinux.org>
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There is a lot of swtiching between size_t and int for alpm_list sizes
in the codebase. Start converting these to all be size_t by adjusting
the return type of alpm_list_count and fixing all additional warnings
given by -Wconversion that are generated by this change.
Dan: a few more small changes to ensure things compile, adjusting some
printf format string characters to accommodate the larger size on x86_64.
Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
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Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
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The amount of diskspace needed for a transaction can be less than
zero. Only test this against the available disk space if it is
positive, which avoids a comparison being made between signed and
unsigned types (-Wsign-compare).
Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
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It is the minimum of 5% of disk capacity or 20 MiB on a per-partition basis.
Signed-off-by: Dan McGee <dan@archlinux.org>
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* Use our normal return() function syntax
* Rework a few things to reduce number of casts
* Fix void function argument declaration
* Add missing gettext _() call
* Remove need for seperate malloc() of statvfs/statfs structure
* Unify argument order of static functions- mountpoints now always
passed first
* Count all files that start with '.' in a package against the DB
* Rename db to db_local in check_diskspace to clarify some code
* Fix some line wrapping to respect 80 characters
Signed-off-by: Dan McGee <dan@archlinux.org>
Signed-off-by: Allan McRae <allan@archlinux.org>
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Turn it into a configure-type typedef, which allows us to reduce the
amount of duplicated code and clean up some #ifdef magic in the code
itself. Adjust some of the other defined checks to look at the headers
available rather than trying to pull in the right ones based on
configure checks.
Signed-off-by: Dan McGee <dan@archlinux.org>
Signed-off-by: Allan McRae <allan@archlinux.org>
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Checking disk space needed for a transaction can take a while so add
an informative progress bar.
Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
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Pull together the work of the previous commits to implement a check
for enough free space before performing an install transaction. Abort
if there is not enough free space with an appropriate pm_errno..
Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
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Two helper function are added to calculate the disk usage from packages
that are either currently installed on the system or from a package
archive.
Some minor approximations have been made:
1. Size for directories is not considered when removing a package from the
filesystem to avoid multiple counting across packages. Also, these are
reported to take zero size while installing.
2. Symlinks are reported to contribute zero size towards removal as
libarchive reports them to have zero size for install.
3. Package data files (.PKGINFO, .INSTALL, .CHANGELOG) are counted towards
usage on dbpath on install, but their size is not counted on package
removal.
4. No handling of extra size needed for .pacsave/.pacnew files.
Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
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For a given file, determine which mount point it is on or will be
installed to. Take into account that we might be using an alternative
installation root.
Add additional helper function added to sort mount point list for easier
matching.
Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
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Add a mount_point_list() function that attempts to portably obtain
a list of system mount points and a struct to hold needed mount point
information.
Abort the transaction if we are unable to determine the mount points.
Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
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Very basic prototyping for adding functionality to check free disk
space before performing package installs.
Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
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