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91e88941
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2010-11-29T18:06:22
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Properly write Index Entry 'flags_extended'
Always write the 'flags_extended' attribute to disk if it's available.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
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c3dd69a9
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2010-11-17T04:59:11
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Fix resizing the index array
No longer segfaults when resizing an empty array.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
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c3a20d5c
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2010-11-14T22:11:46
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Add support for 'index add'
Actually add files to the index by creating their corresponding blob and
storing it on the repository, then getting the hash and updating the
index file.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
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0be42199
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2010-11-10T13:43:55
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accessor for index entry count
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3f43678e
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2010-11-07T01:24:45
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Make the Index API public
Several private methods of the Index API are now public, including the
methods to remove, get and add index entries.
All the methods only take an integer value for the position of the entry
to get/remove. To get or remove entries based on their path names, look
them up first using the git_index_find method.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
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1795f879
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2010-11-05T03:20:17
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Improve error handling
All initialization functions now return error codes instead of pointers.
Error codes are now properly propagated on most functions. Several new
and more specific error codes have been added in common.h
Signed-off-by: Vicent Marti <tanoku@gmail.com>
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6fd195d7
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2010-11-02T18:42:42
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Change git_repository initialization to use a path
The constructor to git_repository is now called
'git_repository_open(path)'
and takes a path to a git repository instead of an existing ODB object.
Unit tests have been updated accordingly and the two test repositories
have been merged into one.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
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68535125
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2010-07-09T20:19:56
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Add support for git index files
The new 'git_index' structure is an in-memory representation
of a git index on disk; the 'git_index_entry' structures represent
each one of the file entries on the index.
The following calls for index instantiation have been added:
git_index_alloc(): instantiate a new index structure
git_index_free(): free an existing index
git_index_clear(): clear all the entires in an existing file
The following calls for index reading and writing have been added:
git_index_read(): update the contents of the index structure from
its file on disk.
Internally implemented through:
git_index__parse()
Index files are stored on disk in network byte order; all integer fields
inside them are properly converted to the machine's byte order when
loading them in memory. The parsing engine also distinguishes
between normal index entries and extended entries with 2 extra bytes
of flags.
The 'TREE' extension for index entries is also loaded into memory:
Tree caches stored in Index files are loaded into the
'git_index_tree' structure pointed by the 'tree' pointer inside
'git_index'.
'index->tree' points to the root node of the tree cache; the full tree
can be traversed through each of the node's 'tree->children'.
Index files can be written back to disk through:
git_index_write(): atomic writing of existing index objects
backed by internal method git_index__write()
The following calls for entry manipulation have been added:
git_index_add(): insert an empty entry to the index
git_index_find(): search an entry by its path name
git_index__append(): appends a new index entry to the end of the
list, resizing the entries array if required
New index entries are always inserted at the end of the array; since the
index entries must be sorted for it to be internally consistent, the
index object is only sorted once, and if required, before accessing the
whole entriea array (e.g. before writing to disk, before traversing,
etc).
git_index__remove_pos(): remove an index entry in a specific position
git_index__sort(): sort the entries in the array by path name
The entries array is sorted stably and in place using an
insertion sort, which ought to be the most efficient approach
since the entries array is always mostly-sorted.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
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