- fix metadata handling with cached phars
- fix virtual_dirs with rmdir
- ensure that after copy-on-write, all existing Phar objects link to the newly copied phar data
this also resulted in a major fix for mounted directories, which were recycling the 'link' field which
could cause stupid conflicts with actual links, so move that to new 'tmp' field.
1 - executable phars must contain '.phar' in the filename
2 - non-executable phars must not contain '.phar' and must have an extension of at least 1 character
In addition, phar filenames must exist if opened for read, and the directory containing the phar must exist if opened for creation
if opened for creation, the file must not already exist
[DOC]
re-organize, create util.c, move entry_info/archive_data/entry_data access methods to this file
refactor entry->fp, now this is abstracted with phar_get_efp() and phar_seek_efp(), fixes all weird dependency issues
permanently solve the "millions of file pointers" issue for read access. All compressed files are read into a single
temporary stream, and their constraints are controlled by the entry->fp abstraction
Improvements in this zip implementation over ext/zip:
* full read/write support for bzip2 compressed files
* much more efficient access for accessing only a few files within large zip files, as crc/header validation is
done just-in-time
* full stream support for opendir/rename/rmdir/mkdir as well as all of the other stream funcs
* full support for setting file perms via Phar::chmod(), stored as zip-standard extra field
* no problem with large zips and many open file pointers
# TODO: add big-endian system support for tar/zip file format headers, otherwise the implementation is complete
# TODO: test on windows and fix any windows-specific issues
# TODO: verify zips created work with unzip/winzip/windows explorer and so on
fix *extremely* ancient problem where phar_wrapper_stat always returned success indicating the file existed
rename phar_destroy_manifest to phar_destroy_manifest_entry
