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index 0a019dd2e5f9b20ae3169cea7dee16dedf892856..bd625ababfc950318714b3271b02da938fbf609b 100644 (file)
with the newly imported data.
The fast-import backend itself can import into an empty repository (one that
-has already been initialized by gitlink:git-init[1]) or incrementally
+has already been initialized by linkgit:git-init[1]) or incrementally
update an existing populated repository. Whether or not incremental
imports are supported from a particular foreign source depends on
the frontend program in use.
This information may be useful after importing projects
whose total object set exceeds the 4 GiB packfile limit,
as these commits can be used as edge points during calls
- to gitlink:git-pack-objects[1].
+ to linkgit:git-pack-objects[1].
--quiet::
Disable all non-fatal output, making fast-import silent when it
+
An example value is ``Tue Feb 6 11:22:18 2007 -0500''. The Git
parser is accurate, but a little on the lenient side. It is the
-same parser used by gitlink:git-am[1] when applying patches
+same parser used by linkgit:git-am[1] when applying patches
received from email.
+
Some malformed strings may be accepted as valid dates. In some of
+
Frontends should prefer the `raw` format if the source material
already uses UNIX-epoch format, can be coaxed to give dates in that
-format, or its format is easiliy convertible to it, as there is no
+format, or its format is easily convertible to it, as there is no
ambiguity in parsing.
`now`::
This particular format is supplied as its short to implement and
may be useful to a process that wants to create a new commit
right now, without needing to use a working directory or
-gitlink:git-update-index[1].
+linkgit:git-update-index[1].
+
If separate `author` and `committer` commands are used in a `commit`
the timestamps may not match, as the system clock will be polled
and `filedeleteall` commands
may be included to update the contents of the branch prior to
creating the commit. These commands may be supplied in any order.
-However it is recommended that a `filedeleteall` command preceed
+However it is recommended that a `filedeleteall` command precede
all `filemodify`, `filecopy` and `filerename` commands in the same
commit, as `filedeleteall`
wipes the branch clean (see below).
+
The reason fast-import uses `:` to denote a mark reference is this character
is not legal in a Git branch name. The leading `:` makes it easy
-to distingush between the mark 42 (`:42`) and the branch 42 (`42`
+to distinguish between the mark 42 (`:42`) and the branch 42 (`42`
or `refs/heads/42`), or an abbreviated SHA-1 which happened to
consist only of base-10 digits.
+
* A complete 40 byte or abbreviated commit SHA-1 in hex.
* Any valid Git SHA-1 expression that resolves to a commit. See
- ``SPECIFYING REVISIONS'' in gitlink:git-rev-parse[1] for details.
+ ``SPECIFYING REVISIONS'' in linkgit:git-rev-parse[1] for details.
The special case of restarting an incremental import from the
current branch value should be written as:
If an `LF` or double quote must be encoded into `<path>` shell-style
quoting should be used, e.g. `"path/with\n and \" in it"`.
-The value of `<path>` must be in canoncial form. That is it must not:
+The value of `<path>` must be in canonical form. That is it must not:
* contain an empty directory component (e.g. `foo//bar` is invalid),
* end with a directory separator (e.g. `foo/` is invalid),
complete set of bytes which normally goes into such a signature.
If signing is required, create lightweight tags from within fast-import with
`reset`, then create the annotated versions of those tags offline
-with the standard gitlink:git-tag[1] process.
+with the standard linkgit:git-tag[1] process.
`reset`
~~~~~~~
Delimited format::
A delimiter string is used to mark the end of the data.
fast-import will compute the length by searching for the delimiter.
- This format is primarly useful for testing and is not
+ This format is primarily useful for testing and is not
recommended for real data.
+
....
When committing fixups, consider using `merge` to connect the
commit(s) which are supplying file revisions to the fixup branch.
-Doing so will allow tools such as gitlink:git-blame[1] to track
+Doing so will allow tools such as linkgit:git-blame[1] to track
through the real commit history and properly annotate the source
files.
Import Now, Repack Later
~~~~~~~~~~~~~~~~~~~~~~~~
As soon as fast-import completes the Git repository is completely valid
-and ready for use. Typicallly this takes only a very short time,
+and ready for use. Typically this takes only a very short time,
even for considerably large projects (100,000+ commits).
However repacking the repository is necessary to improve data
~~~~~~~~~~~~~~~~~~~~~~~~~
If you are repacking very old imported data (e.g. older than the
last year), consider expending some extra CPU time and supplying
-\--window=50 (or higher) when you run gitlink:git-repack[1].
+\--window=50 (or higher) when you run linkgit:git-repack[1].
This will take longer, but will also produce a smaller packfile.
You only need to expend the effort once, and everyone using your
project will benefit from the smaller repository.
------------------
There are a number of factors which affect how much memory fast-import
requires to perform an import. Like critical sections of core
-Git, fast-import uses its own memory allocators to ammortize any overheads
-associated with malloc. In practice fast-import tends to ammoritize any
+Git, fast-import uses its own memory allocators to amortize any overheads
+associated with malloc. In practice fast-import tends to amortize any
malloc overheads to 0, due to its use of large block allocations.
per object
~~~~~~~~~~~~~~~
Trees (aka directories) use just 12 bytes of memory on top of the
memory required for their entries (see ``per active file'' below).
-The cost of a tree is virtually 0, as its overhead ammortizes out
+The cost of a tree is virtually 0, as its overhead amortizes out
over the individual file entries.
per active file entry
GIT
---
-Part of the gitlink:git[7] suite
+Part of the linkgit:git[7] suite