### 2013-05-26 v0.957 beta
* STS/IAM security tokens support added
Documentation typo fixed - setup instructions was incorrect - need to install LWP::Protocol::https instead of
LWP::Useragent::https (LWP::Protocol::https is a typo, and does not exists)
### 2013-05-26 v0.956 beta
* Fixed - 'Restore' command now skips retrieval of files, which were retrieved by mtglacier in last 24h (retrievals
tracked in Journal using system clock). Also existing files skipped. Previous behavior was: skip only existing files.
* Some more error handling in HTTP processing
### 2013-05-26 v0.955 beta
* Fixed - timeout error from underlying HTTP Library was not detected
### 2013-05-19 v0.954 beta
* Fixed bug - when child worker terminated with a signal, it's possible that STDOUT buffers won't be flushed, and
as some error messages were printed to STDOUT they was truncated in this case.
### 2013-05-19 v0.953 beta
* Error messages added if detect journal from future version of mtglacier. Also other errors in parsing
line properly handled.
* Error message added - refuse to work with journal files where last line does not end with LF (or CRLF). That could
mean journal is truncated/damaged.
* Possibility to work with Journal files, which use CRLF as line separator
* Error message (instead of unexpected error) added for case when filenames are too big (limit
is 700 ASCII or 350 2-bytes UTF-8). Limitation section updated for this case in README.
### 2013-05-19 v0.952 beta
* Some error handling rework. Errors for file opens (permissions problems), invalid characters in filenames, some misc
errors, are thrown with sane error message and helpful information
* Some more internal changes related to internal IPC protocol
* Documentation: 'Limitations' section added.
### 2013-05-09 v0.951 beta
* Bug fixed: In previous version (v0.944) a bug was introduced when downloading inventory (download_inventory_command).
If inventory size (JSON encoded) was more than 999999 bytes (~1Mb), download failed with a message:
"unexpected end of string while parsing JSON string, at character offset NNNNN (before "(end of string)")
at ... /lib/App/MtAws/LineProtocol.pm line 42. (notice LineProtocol.pm, other file will mean different issue)
* download_inventory command CPU and memory usage optimized
* Some internal changes related to internal IPC protocol
### 2013-04-30 v0.944 beta
* Better signal/program termination handling.
Signal number has hardcoded, so on (some?) (non-linux?) systems that was a different signal, resulting in
core dump after successful program termination (signal with default action core dump)
Also previously, after termination mtglacier were sending much more signals to it child processes, than
required for communication, this could result in segfault it Perl (again, after successful termination)
* Reworked messages when mtglacier terminated (with Ctrl-C or exception)
* select() call was not protected from EINTR, this could case crash in rare circumstances (for example if ran
under "truss -f" on FreeBSD (strace -f analog)
* There was a mix of select()/eof() and buffered IO in Perl code, this could lead to bugs in the future.
* Protect IO calls from possible EINTR to avoid possible Perl
bug http://www.perlmonks.org/?node_id=1026468 http://www.perlmonks.org/?node_id=1026542
* Workaround a Perl "feature": When terminal-encoding set to single-byte encoding (i.e. under *BSD), whole thing
can hang (with 100% CPU) if random data (i.e. user files content, non UTF-8 filenames, binary hashes) printed to
STDERR (i.e. a stacktrace after error) https://rt.perl.org/rt3//Public/Bug/Display.html?id=117537
* Documentation: This ChangeLog reformatted for better readability
* Documentation: Journal Concept section added https://github.com/vsespb/mt-aws-glacier#journal-concept
* Documentation: --from-dir was changed to --dir and --to-vault changed to --vault (in code this change was several
versions ago. both options are valid now. --from-dir and --to-vault will be deprecated soon)
### 2013-04-27 v0.943 beta
* Debug code added to troubleshoot issues #28,#33:
If MTGLACIER_DEBUG_INVENTORY=1 is set, download-inventory command
will write two log files: _download_inventory_body.log and _download_inventory_headers.log with
request/response headers and response body
### 2013-04-09 v0.942 beta
* Regression fixed - print user friendly error message in case Permission Denied errors.
### 2013-04-07 v0.941 beta
* Regression fixed - A code which prints user friendly error message, in case HTTPS libraries are not installed,
was not working.
* leaf-optimization option added (default is on).
Allows to disable file tree traversal leaf-optimization for (some? broken?) CIFS/CD-ROM filesystems
### 2013-03-19 v0.936 beta
* File selection implemented (see "File selection options" in README)
* --dry-run command implemented
* Bug fixed - it was impossible to use some options in config (like 'from-dir' 'to-vault'). Internally
those were option aliases.
### 2013-03-18 v0.935 beta
* Fixed - check-local-hash should not crash on 0-size files (even though normally there should not be any)
### 2013-03-18 v0.934 beta
* Better handling of IO errors in 'check-local-hash' command - print error, continue with other files,
return exit code 1 in the end.
### 2013-03-13 v0.933 beta
* Fix crash in 'help' command, bug was introduced a day ago.
* New version numbering for beta versions - 0.9XY. Where 'X' is a month number of year 2013. 'Y' is number a of
a release in this month. So 0.933beta is 3rd release in April 2013
### 2013-03-12: v0.89 beta
* Single-byte character encodings support for *BSD systems added (see "Configuring Character Encoding") in README.
* When uploading from STDIN and file is empty, don't create Amazon Glacier upload id before throwing error
### 2013-03-04: v0.88 beta
* upload-file command implemented (upload from STDIN or single upload from file). See README.
* Internal: New Config Engine (config/command line options processing) - will help implement
advanced functionality in the future
* Fix possible crash when read(2) system call can return partial result,
see http://www.perlmonks.org/?node_id=435814
### 2013-02-23: v0.87 beta
* More verbose error message if we found broken UTF-8 in filenames
* More verbose error message in case of permission problems when reading files from disk
* Error checking for key/secret/region format added
* Some minor internal changes and test improvements
### 2013-01-29: v0.86 beta
* Bug fixed: when doing retrieval or delete, crash after successful finishing (only happened
when concurrency=1). Regression of bug fixed in 0.76beta.
* Changed project file structure. Modules moved to lib/App/MtAws
* mtglacier.pl now deprected, use mtglacier
* Now you can execute mtglacier command from any directory, or create a symlink to it - it will find
other package files by itself
* Minor fixes in help command output and cosmetic changes
### 2013-01-28: v0.85 beta
* Create/delete vault support
### 2013-01-28: v0.84 beta
* HTTPS Support added
* Bug fixed: Some (UTF-8) metadata characters was
double-encoded (however it can be read without problems)
* Compatibility - Amazon Glacier Metadata: only backward compatible with previous versions.
* Documentation improvements
* Error checking improved when reading config file
### 2013-01-21: v0.83 beta
* Bug fixed. File modification time 1970-01-01T00:00:00Z0 (i.e. epoch time = 0 ) was causing crash when
uploading and missing file report when check-local-hash
* Main script: Changed shebang from /usr/bin/perl to /usr/bin/env - this will
allow Mac Port users to work out of the box
* Main script: Cosmetic changes in --help output
* Documentation: added names of CentOS packages, better example of config
file, cosmetic changes, fixed spelling mistakes
### 2013-01-12: v0.82 beta
* retrieve-inventory/download-inventory commands added. You can now restore journal file
from scratch, from Amazon Glacier metadata
* Now when downloading files from glacier - restore original modification time
* Fixed - File modification time - date before 1970 were not working
* Improvement in error checking command line parameters
* Error checking added for read/write availability of journal file
* Internal: improvements to unit tests
### 2013-01-02: v0.81 beta
* Error handling when parsing command line implemented + --help command
* Security - considering filenames coming from "external" sources (from Glacier and from Journal file)
as unsecure. Sanitize/check it.
* Some internal changes to TreeHash implementing (does not affect
working code, but needs for future enhancements)
* Dependency removed - MIME::Base64::encode_base64url (implemented in 2010 in
MIME::Base64), This function is re-implemented. So we can use older versions of this module.
### 2012-12-27: v0.80 beta
* Storing Amazon Glacier metadata (x-amz-archive-description) when
upload files implemented (using custom format).
* More verbose output for check-local-hash command
* Internal: Huge testsuite improvements
* Internal: Refactored: command-line options
processing, Glacier requests code, main program, misc
* New Journal format: added support of file modification time, added journal
version makers (software fully works with old journal files)
### 2012-12-07: v0.78 beta
* Full internal UTF-8 support introduced. Can use wide characters in filenames, command line options
### 2012-12-05: v0.77 beta
* Replace File::Path::make_path with legacy method File::Path::mkpath so it's compatible now with
older perl distribution (File::Path 1.08 CentOS 5.8)
* fixed problem when relative filenames start with "0" character
### 2012-11-21: v0.76 beta
* Retrieval work improved: Can use more than just 50 first retrieval jobs (walking job list
pagination). Requesting only completed job list, so use fewer requests.
* Fixed bug when restore process crashed after successful finishing (only happened when concurrency=1)
* Documentation fixes: Installation instructions improved. Help/Contribute section added.
### 2012-11-17: v0.75 beta
* Bug fixed when signature not calculated
right with retrieve requests (bug found in 0.74 after SHA256 optimization)
* Increased internal limit for maximum in-progress files while uploading (was 3 now 30)
### 2012-11-15: v0.74 beta
* Improved CPU usage apprx 30% - 1) SHA256 was calculated twice sometimes 2) In case data chunk < 1 MB we can
use that TreeHash is equal to SHA256
* Debug code removed, which were causing failing requests in 20% cases
* Some refactoring
### 2012-11-15: v0.73 beta
* Sign request right before sending to network. Fixing the following 1) when request is retried due to 408/500 error,
we resign it, thus timestamp won't expire 2) put all heavy operations like SHA calculation before signature/timestamp
calculation
* Some legacy code removed
### 2012-10-24: v0.72 beta
* Some effort to manage mtglacier version information, print version each run. Report version in HTTP
UserAgent string.
* Show some progress when reading large local directory listings
* Retry with throttling 408/500 HTTP requests. 408 can mean timeout/bad bandwidth. 500 means Amazon not ready yet.
* Some old unused code removed
* Option --max-number-of-files now works with "sync" and limits number of files to synchronize
* More verbose output
* For certain commands like Sync read only not-yet-synced filenames into memory (saves memory when working
with huge filesets)
* Use Journal module to handle journals and file listings + unit test the module
### 2012-08-28: v0.7 beta
* initial release