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2021-07-21Add a separate architecture/structure writeupDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2021-06-25Backport documentation clarifications and typo fixesDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-12-29Minor "late night typing" fixes in documentationDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-11-02Backport changes to the benchmark writeupDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-08-03format.txt Fix magic text and remove stray tabsAnatoli Babenia
2020-06-29Document the file name limit imposed by the kernel implementationDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-06-13Minor documentation updateDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-05-30Cleanup: Reorganize structure of Automake filesDavid Oberhollenzer
- Split up the huge file in bin/ into one small file per sub directory - Remove the stub in doc/ Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-05-30Cleanup: move man pages to the respective program source directoriesDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-05-23Update benchmark numbers for zstd, now that it uses correct parametersDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-05-16Update documentationDavid Oberhollenzer
- Some clarifications - Some typo fixes Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-05-03Update man pagesDavid Oberhollenzer
Add missing options, rephrase some things to be a bit more clear and fix a bunch of typos. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-04-27gensquashfs: Add options to globally override UID/GID valuesDavid Oberhollenzer
A common use case for mksquashfs is to simply pack a directory and set a magic option to force all user/group IDs to root. This commit adds similar options to gensquashfs to maek it better suited as a direct replacement for packing an input directory. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-04-23Update benchmark dataDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-03-22doxygen: add rudmentary main page to the API reference manualDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-02-27Add initial benchmark data and discussionDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-02-22Try to clarify the parallel block processor documentationDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-02-21Clarify directory header counter in format documentationDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-02-21Update documentationDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2020-02-17Write up some thoughts on the thread pool based block processorDavid 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>
2020-01-11Some clarifications and fixes for the format specificationDavid 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>
2019-12-23Extend sqfs2tar to preserve hard linksDavid Oberhollenzer
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>
2019-12-19Fix spelling mistakes found by lintianBenjamin Drung
Signed-off-by: Benjamin Drung <benjamin.drung@cloud.ionos.com>
2019-12-02Update man pagesDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-12-02Add a --root-becomes option to tar2sqfs and sqfs2tarDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-10-06Update tar2sqfs and sqfs2tar man pageDavid Oberhollenzer
- Add recent changes - Fix spelling and similar mistakes - Remove outdated/contradictory stuff - Consistent spelling of SquashFS - Simplify some formulations Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-20sqfsdiff: remove squashfs-to-dir & dir-to-dir comparisonsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-20Remove parallel unpackingDavid Oberhollenzer
Parallel unpacking didn't really improve the speed that much. Actually sorting the files for optimized unpack order improved speed much more than the parallel unpacker. Furthermore, the fork based parallel unpacker was actually pretty messy to begin with. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-09-10Make the thread pool queue backlog user configurableDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-08-21Update man pagesDavid Oberhollenzer
- Add "see also" references - Make some adjustments as suggested by man-pages(7) - Clarify environment variable behaviour Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-08-21Update sqfsdiff documentationDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-08-20Change CLI of sqfsdiff to specify images through long optionsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-08-19Update rdsquashfs man pageDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-08-18Make data writer use block processorDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-08-11Add --one-file-system option to gensquashfsDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-08-09Add option to sqfsdiff to extract regular files that are differentDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-08-07Add documentation for sqfsdiffDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-08-02Implement support for SOURCE_DATE_EPOCH environment variableDavid Oberhollenzer
reproducible-builds.org suggests the use of an environment variable as a source for time stamps: https://reproducible-builds.org/specs/source-date-epoch/ This commit adds support for setting the default mtime from the variable, if it is set and only defaulting to 0 if not. The timestamp given by the command line switch takes precedence. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-08-01Add flag to rdsquashfs to optionally set xattrs on unpacked filesDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-08-01Update man pagesDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-25Update rdsquashfs man pageDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-22Add a way to optionally keep the original time stampsDavid Oberhollenzer
First of all, this commit adds a mod_time field to a tree node. When creating the tree node, the field is set from the struct stat. When scanning a directory, the time stamps from the input are used if set. Second, the libsqfs code that reads inodes is modified to store the mod_time from the inode in the fstree node and to write the tree node into a generated inode. Finally, tar2sqfs is modified to optionally keep the timestamps from the tar archive instead of setting defaults. gensquashfs is similarly modified to keep the input timestamps if specified. The result is as follows: - sqfs2tar will always carry the timestamps from the squashfs over to the tar ball. - tar2sqfs will set defaults, unless explicitly asked to preserve the mtime from the tar ball. - gensquashfs can optionally preserve the mtime from the input hierarchy it processes if only --pack-dir is specified. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-21Implement generating an inode table for NFS exportDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-17fstree: add support for spaces in filenamesDavid Oberhollenzer
This commit adds a mechanism to fstree_from_file to support filenames with spaces in them by quoting the entire string. Quote marks can still be used inside file names by escaping them with a backslash. Back slashes (if that is your thing) can also be escaped. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-04tar2sqfs: repack extended attributes into squashfs filesystemDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-04sqfs2tar: add option to extract subdirectoriesDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2019-07-03Add no-skip option to sqfs2tarDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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