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2020-01-26Cleanup: Move fragment deduplication code over to fragment tableDavid Oberhollenzer
This removes further clutter from the data writer. Any future efforts on making fragment by hash lookup faster can focus on that area only and don't clutter the block processor. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-25Add missing headers to installed header listDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-24Cleanup: use fragment table primitive in data writerDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-24Cleanup: remove single use helper functions from data writerDavid Oberhollenzer
This commit moves the single use helper functions that are called from worker thread context into the worker thread function. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-24Cleanup: use the frag table data type in the data readerDavid Oberhollenzer
Instead of doing everything by manually. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-24Add a fragment table primitive to libsquashfsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-20Add a flag field to the id table create functionDavid Oberhollenzer
Just to be safe in case there needs to be an extension in the future. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-20Replace hand curated repo list with external badge linkDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-20An attempt at cleaning sqfsbrowse a little and adding explanationsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-20Add a "cat" command to sqfsbrowse that uses the data readerDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-19Cleanup: remove the payload pointers from sqfs_inode_generic_tDavid Oberhollenzer
There are 3 types of extra payload: - Directory index - File block sizes - Symlink target This commit removes the type specific pointers and modifies the code to use the payload area directly. To simplify the file block case and mitigate alignment issues, the type of the extra field is changed to sqfs_u32. For symlink target, the extra field can simply be cast to a character pointer (it had to be cast anyway for most uses). For block sizes, probably the most common usecase, it can be used as is. For directory indices, there is a helper function anyway. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-19Minor documentation updateDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-19Update explanation on directory index accountingDavid Oberhollenzer
Tests with the Debian image (which is generated with squashfs-tools, so should be interpreted as ground truth) have showed that the count is not stored off-by-one. The code was already doing the right thing, but the documentation was wrong. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-19Add a helper function to unpack directory index entriesDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-19Fix directory index accounting when reading inodesDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-13Add readline based sqfsbrowse demoDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-12Add a simple directory listing demoDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-12Implement 42.sqfs demoDavid Oberhollenzer
A play on the famous 42.zip Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-12Port mknastyfs to libsquashfsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-12Add stub for sample programsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-12Add a start anchor parameter to sqfs_dir_reader_find_by_pathDavid Oberhollenzer
It optionally allows code that does tree traversal to start at an inode that it obtained previously and makes it easier to keep state externally. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-12Add an inode deep copy helper function to libsquashfsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-11Some clarifications and fixes for the format specificationDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-11Update README.md, CHANGELOG.mdDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-08Always append '/' to names of directoriesDavid Oberhollenzer
In the distant past, the first versions of tar did not have any header field to indicate the type of the file being packed. Instead, they used to append a '/' to the filename to indicate that an entry is a actually a directory. GNU tar still does this today, despite having a header field for file type. This commit modifies sqfs2tar to append slashes to directory names for compatibillity and to mimic GNU tar behaviour more closely. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-06Cleanup: use parse_size function to parse compressor optionsDavid Oberhollenzer
The XZ option parser had a similar function to parse_size. This commit removes the other implementation and extends parse_size with the one missing feature, i.e. allowing a '%' suffix for a relative value. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-05Update README.md, CHANGELOG.mdDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-04Add a write-up on the on-disk formatDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-01-02Support parsing [device] block size argument with SI suffixDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-31Include sys/sysmacros.h on any GNU libc platformPino Toscano
sys/sysmacros.h is an implementation of GNU libc, so include it unconditionally when that libc is used. Signed-off-by: Pino Toscano <toscano.pino@tiscali.it>
2019-12-30Bump version numberv0.8David Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-30Fix zlib paths in automake fileDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-29Add PKG_CONFIG_PATH back to mkwinbins.shDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-29Update READMEDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-29Add a small version of zlib that can be built in staticallyDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-28Add a small version of liblz4 that can be built in staticallyDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-27Require the copora tests suits to be enabled explicitlyDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-27Fix pkg-config settings for mkwinbins.shDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-27Make sure the tests are run after generating Windows binariesDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-27Fix corpora test scripts for Windows cross buildDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-27Fix filename_sane test for WindowsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-26Update CHANGELOG.mdDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-26sqfsdiff: treat subdirectories correctly when comparing dir listingsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-23Simplify hard link handlingDavid Oberhollenzer
- For now, enforce that hard links don't point to a directories. - Instead of doing the swaping trickery, just reorder the flat list and hand out new inode numbers. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-23Minor cleanup in inode allocationDavid Oberhollenzer
- Remove unnecessary counter argument, we already have the total count. - Remove the return status, there is no failure branch. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-23Extend sqfs2tar to preserve hard linksDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-23Add libtar.a function to create hardlink recordsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-23Add simple sqfs_tree_node_t hardlink detection to libcommonDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-23Bring back the flat list of inodes in libfstreeDavid Oberhollenzer
It makes further processing simpler and doesn't leak the abstraction into upper layers. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-22Add hard link support to gensquashfs and tar2sqfsDavid Oberhollenzer
In libtar, set a special flag if the header is actually a hard link. In tar2sqfs, create a hard link node and skip the rest for hard links. Also refues to set the root attributes from a hard link, it may refere to a node that we have missed earlier, there is nothing else that we can do here. In fstree_from_file, add a "link" command for adding hard links. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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