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Move the error handling to the end of the function, make sure we
properly handle all allocation failures.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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The glob function and everything associated is moved to a separate
file, the entry point exposed any the special case handling is removed
from the other callbacks in fstree_from_file.c
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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The existing istream_t wrapper is mered into this one as well, we
can open the files via the iterators open_file_ro function. Unit
tests and tar2sqfs are modified accordingly.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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For regular iterator types, it's a no-op, for the tree iterator,
it skips the sub tree.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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A simple unit test is added that mainly checks for the behavior of
recursing into a sub-tree and only matching the children at the end,
but not reporting the parents that don't match. The behavior is
inteded to immitate the `find` command.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Piece together the prefix path and pass it to the iterator. That way,
we get the full target paths back from the iterator and can use those
directly in the callback for filtering.
We also no longer need the root node for fstree_from_dir (always tree
root) and the callback can no longer return an error state.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Create the directory iterator externally and pass it to fstree_from_dir.
The unit test is also removed, because the heavy lifting is now done
outside the function.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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This way, we can remove the discard_node function and simplify the
scan_dir code further.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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The logic was previously there to allow recursing into directories
that exist in the fstree and the scanned directory, but not create
new directories. Because the dir_tree_iterator_t supports reporting
contents but not directories (and does DFS), we can simply check if
the parent of the directory exists. Under normal DFS, it must exist,
because we created it earlier. If we are skipping the directory
entries, it only exists if it was there earlier and we can skip
entries that have a non-existant parent, retainint the old behavior.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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It is only used in the glob function, so assemble the path there and
jus tuse fstree_from_dir.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Limited unit testing for the flags is added, particularly the
abillity to recurse into sub-directories, but not report the
parents as individual entries.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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When inserting the selected entry, the next_by_type pointer is
supposed to be cleared, but the code accidentaly broke up the
next pointer, removing the element from the tree.
Fixes: e1e655b02f6c54177f9070eeb221ab95c6d4e20f
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Instead of printing out error messages, return an errro ID and match
the behavior with the Windows implementation. Also, don't check first
if the struct stat says it is a link, the readlinkat() system call
will fail if it isn't. Avoid confusing the deputy.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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This is also the reason we need to lug around the original directory
path on Windows.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Instead of having a file_info_t next pointer, requiring an up-cast
to tree_node_t all the time, simply add a "next_by_type" pointer to
the tree node itself, which can also be used for other purposes by
other node types and removes the need for up-casting.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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The single boolean created_implicitly can be replaced with a general
purpose flag field. The "children" pointer can then be hoisted directly
into the data union of tree_node_t.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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If we look at a sub directory, piece totether the full path and open
that instead. This allows us to move the directory open into the scan
function and get rid of the dirfd trickery. Also pull the recusion
step out into the parent function.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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The idea of the block align feature was to allow micro-managing that
some files are forcefully aligned to 1k/4k ("device block") boundaries,
hoping to improve access time at the cost of data density. The feature
was not exposed in the tools for a long time and eventuall added to the
sort file. Measurement and experimentation showed, that it in fact
worsened the read performance on a test system with an old micro SD
card as the bottle neck.
The feature is removed, and if needed, can be brought back simply by
wrapping/sub-classing the default block writer, if need be..
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Generate a simple tarball and compare it with a reference.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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In the istream implementation, automatically skip the padding when we
reach end-of-file. Also skip file AND padding when we destroy the
object. Replace the remaining instances with a simple istream_skip
instead and remove the wrapper from libtar.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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The tar_istream_t reads the data from a tar file, having been given
the header, and synthesizes zero bytes for sparse regions.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Move it to a separate libxfrm library, where it can be independently
tested as well. The bulk of the new code is also mainly test cases
for the compressors.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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The drop/destroy functions support passing in a NULL pointer.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Implement grab/drop functions to increase/decrease reference count
and destroy the object if the count drops to 0.
Make sure that all objects that maintain internal references actually
grab that reference, duplicate it in the copy function, drop it in
the destroy handler.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Print a proper error description instead of just an error code.
If the error is ERROR_FILE_EXISTS, print out a hint that this might
be caused by a case in-sensitivity issue.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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The "from dir" and from "from file" code, as well as the "sort file"
code is specific to gensquashfs, so move them there and the test
cases as well.
The medium term idea is to reduce libfstree to a stub, merge it into
the generic writer and ultimately hoist that into libsquashfs.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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- When printing an error, specify the filename and line number
- Always print an error, including out of memory conditions
- Fail if we encounter a line that we don't recognize
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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