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2012-12-21Merge branch 'nd/index-format-doc'Libravatar Junio C Hamano1-2/+3
* nd/index-format-doc: index-format.txt: clarify what is "invalid"
2012-12-13index-format.txt: clarify what is "invalid"Libravatar Nguyễn Thái Ngọc Duy1-2/+3
A cache-tree entry with a negative entry count is considered invalid by the current Git; it records that we do not know the object name of a tree that would result by writing the directory covered by the cache-tree as a tree object. Clarify that any entry with a negative entry count is invalid, but the implementations must write -1 there. This way, we can later decide to allow writers to use negative values other than -1 to encode optional information on such invalidated entries without harming interoperability; we do not know what will be encoded and how, so we keep these other negative values as reserved for now. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-10-16Documentation/technical: convert plain text files to asciidocLibravatar Thomas Ackermann1-1/+1
These were not originally meant for asciidoc, but they are already so close. Mark them up in asciidoc. Signed-off-by: Thomas Ackermann <th.acker@arcor.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-27index-v4: document the entry formatLibravatar Junio C Hamano1-0/+13
Document the format so that others can learn from and build on top of the series. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-31Documentation: clarify the invalidated tree entry formatLibravatar Carlos Martín Nieto1-2/+3
When the entry_count is -1, the tree is invalidated and therefore has not associated hash (or object name). Explicitly state that the next entry starts after the newline. Signed-off-by: Carlos Martín Nieto <cmn@elego.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-23doc: technical details about the index file formatLibravatar Junio C Hamano1-37/+57
* Clarify "string of unsigned bytes"; * Blob has two variants (regular file vs symlink), not (blob vs symlink); * Clarify permission mode bits; * Clarify ce_namelen() "too long to fit in the length field" case; * Clarify "." etc are forbidden as path components; * Match the description with the internal wording "cache-tree"; * All types of extension begin with signature and length as explained in the first part. Don't repeat the "length" part in the description of each extension (can be mistaken as if there is a separate 32-bit size field inside the extension), but state what the signature for each extension is. * Don't say "Extension tag", as we have said "Extension signature" in the first part---be consistent; * Clarify the invalidation of cache-tree entries; * Correct description on subtree_nr field in the cache-tree; * Clarify the order of entries in cache-tree; Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-27doc: technical details about the index file formatLibravatar Nguyễn Thái Ngọc Duy1-0/+165
This bases on the original work by Robin Rosenberg. Signed-off-by: Robin Rosenberg <robin.rosenberg@dewire.com> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>