6 git-index-pack - Build pack index file for an existing packed archive
12 'git index-pack' [-v] [-o <index-file>] [--[no-]rev-index] <pack-file>
13 'git index-pack' --stdin [--fix-thin] [--keep] [-v] [-o <index-file>]
14 [--[no-]rev-index] [<pack-file>]
19 Reads a packed archive (.pack) from the specified file, and
20 builds a pack index file (.idx) for it. Optionally writes a
21 reverse-index (.rev) for the specified pack. The packed
22 archive together with the pack index can then be placed in
23 the objects/pack/ directory of a Git repository.
29 Be verbose about what is going on, including progress status.
32 Write the generated pack index into the specified
33 file. Without this option the name of pack index
34 file is constructed from the name of packed archive
35 file by replacing .pack with .idx (and the program
36 fails if the name of packed archive does not end
40 When this flag is provided, generate a reverse index
41 (a `.rev` file) corresponding to the given pack. If
42 `--verify` is given, ensure that the existing
43 reverse index is correct. Takes precedence over
44 `pack.writeReverseIndex`.
47 When this flag is provided, the pack is read from stdin
48 instead and a copy is then written to <pack-file>. If
49 <pack-file> is not specified, the pack is written to
50 objects/pack/ directory of the current Git repository with
51 a default name determined from the pack content. If
52 <pack-file> is not specified consider using --keep to
53 prevent a race condition between this process and
57 Fix a "thin" pack produced by `git pack-objects --thin` (see
58 linkgit:git-pack-objects[1] for details) by adding the
59 excluded objects the deltified objects are based on to the
60 pack. This option only makes sense in conjunction with --stdin.
63 Before moving the index into its final destination
64 create an empty .keep file for the associated pack file.
65 This option is usually necessary with --stdin to prevent a
66 simultaneous 'git repack' process from deleting
67 the newly constructed pack and index before refs can be
68 updated to use objects contained in the pack.
71 Like --keep create a .keep file before moving the index into
72 its final destination, but rather than creating an empty file
73 place '<msg>' followed by an LF into the .keep file. The '<msg>'
74 message can later be searched for within all .keep files to
75 locate any which have outlived their usefulness.
77 --index-version=<version>[,<offset>]::
78 This is intended to be used by the test suite only. It allows
79 to force the version for the generated pack index, and to force
80 64-bit index entries on objects located above the given offset.
83 Die, if the pack contains broken objects or links.
85 --check-self-contained-and-connected::
86 Die if the pack contains broken links. For internal use only.
89 Die if the pack contains broken objects. For internal use only.
92 Specifies the number of threads to spawn when resolving
93 deltas. This requires that index-pack be compiled with
94 pthreads otherwise this option is ignored with a warning.
95 This is meant to reduce packing time on multiprocessor
96 machines. The required amount of memory for the delta search
97 window is however multiplied by the number of threads.
98 Specifying 0 will cause Git to auto-detect the number of CPU's
99 and use maximum 3 threads.
101 --max-input-size=<size>::
102 Die, if the pack is larger than <size>.
104 --object-format=<hash-algorithm>::
105 Specify the given object format (hash algorithm) for the pack. The valid
106 values are 'sha1' and (if enabled) 'sha256'. The default is the algorithm for
107 the current repository (set by `extensions.objectFormat`), or 'sha1' if no
108 value is set or outside a repository.
110 This option cannot be used with --stdin.
112 include::object-format-disclaimer.txt[]
117 Once the index has been created, the hash that goes into the name of
118 the pack/idx file is printed to stdout. If --stdin was
119 also used then this is prefixed by either "pack\t", or "keep\t" if a
120 new .keep file was successfully created. This is useful to remove a
121 .keep file used as a lock to prevent the race with 'git repack'
126 Part of the linkgit:git[1] suite