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nodegit/lib/commit.js at master · enshao/nodegit · GitHub
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lib
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commit.js
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var
events
=
require
(
"events"
)
;
var
Promise
=
require
(
"nodegit-promise"
)
;
var
NodeGit
=
require
(
"../"
)
;
var
LookupWrapper
=
require
(
"./util/lookupWrapper"
)
;
var
Commit
=
NodeGit
.
Commit
;
/**
* Retrieves the commit pointed to by the oid
*
@param
{
Repository
} repo The repo that the commit lives in
*
@param
{
String|Oid|Commit
} id The commit to lookup
*
@param
{
Function
} callback
*
@return
{
Commit
}
*/
Commit
.
lookup
=
LookupWrapper
(
Commit
)
;
/**
* Retrieve the SHA.
*
@return
{
String
}
*/
Commit
.
prototype
.
sha
=
function
(
)
{
return
this
.
id
(
)
.
toString
(
)
;
}
;
/**
* Retrieve the commit time as a unix timestamp.
*
@return
{
Number
}
*/
Commit
.
prototype
.
timeMs
=
function
(
)
{
return
this
.
time
(
)
*
1000
;
}
;
/**
* Retrieve the commit time as a Date object.
*
@return
{
Date
}
*/
Commit
.
prototype
.
date
=
function
(
)
{
return
new
Date
(
this
.
timeMs
(
)
)
;
}
;
/**
* Get the tree associated with this commit.
*
*
@param
{
Function
} callback
*
@return
{
Tree
}
*/
Commit
.
prototype
.
getTree
=
function
(
callback
)
{
return
this
.
repo
.
getTree
(
this
.
treeId
(
)
,
callback
)
;
}
;
/**
* Retrieve the entry represented by path for this commit.
* Path must be relative to repository root.
*
*
@param
{
String
} path
*
@param
{
Function
} callback
*
@return
{
TreeEntry
}
*/
Commit
.
prototype
.
getEntry
=
function
(
path
,
callback
)
{
return
this
.
getTree
(
)
.
then
(
function
(
tree
)
{
return
tree
.
getEntry
(
path
)
.
then
(
function
(
entry
)
{
if
(
typeof
callback
===
"function"
)
{
callback
(
null
,
entry
)
;
}
return
entry
;
}
)
;
}
,
callback
)
;
}
;
/**
* Walk the history from this commit backwards.
* An EventEmitter is returned that will emit a "commit" event for each
* commit in the history, and one "end" event when the walk is completed.
* Don"t forget to call `start()` on the returned event.
*
*
@fires
Commit#commit
*
@fires
Commit#end
*
*
@return
{
EventEmitter
}
*/
Commit
.
prototype
.
history
=
function
(
)
{
var
event
=
new
events
.
EventEmitter
(
)
;
var
oid
=
this
.
id
(
)
;
var
revwalk
=
this
.
repo
.
createRevWalk
(
)
;
revwalk
.
sorting
.
apply
(
revwalk
,
arguments
)
;
var
commits
=
[
]
;
event
.
start
=
function
(
)
{
revwalk
.
walk
(
oid
,
function
commitRevWalk
(
error
,
commit
)
{
if
(
error
)
{
return
event
.
emit
(
"error"
,
error
)
;
}
if
(
!
commit
)
{
event
.
emit
(
"end"
,
commits
)
;
return
;
}
event
.
emit
(
"commit"
,
commit
)
;
commits
.
push
(
commit
)
;
}
)
;
}
;
return
event
;
}
;
/**
* Retrieve the commit"s parents -- as commit objects.
*
*
@param
{
number
} limit - Optional amount of parents to return.
*
@param
{
Function
} callback
*
@return
{
[Commit]
} array of commits
*/
Commit
.
prototype
.
getParents
=
function
(
limit
,
callback
)
{
var
parents
=
[
]
;
// Shift arguments.
if
(
typeof
limit
===
"function"
)
{
callback
=
limit
;
}
// If no limit was set, default to the maximum parents.
limit
=
typeof
limit
===
"number"
?
limit
:
this
.
parentcount
(
)
;
limit
=
Math
.
min
(
limit
,
this
.
parentcount
(
)
)
;
for
(
var
i
=
0
;
i
<
limit
;
i
++
)
{
var
oid
=
this
.
parentId
(
i
)
;
var
parent
=
this
.
repo
.
getCommit
(
oid
)
;
parents
.
push
(
parent
)
;
}
// Wait for all parents to complete, before returning.
return
Promise
.
all
(
parents
)
.
then
(
function
(
parents
)
{
if
(
typeof
callback
===
"function"
)
{
callback
(
null
,
parents
)
;
}
return
parents
;
}
,
callback
)
;
}
;
/**
* Retrieve the commit"s parent shas.
*
*
@param
{
Function
} callback
*
@return
{
[Oid]
} array of oids
*/
Commit
.
prototype
.
parents
=
function
(
)
{
var
result
=
[
]
;
for
(
var
i
=
0
;
i
<
this
.
parentcount
(
)
;
i
++
)
{
result
.
push
(
this
.
parentId
(
i
)
)
;
}
return
result
;
}
;
/**
* Generate an array of diff trees showing changes between this commit
* and its parent(s).
*
*
@param
{
Function
} callback
*
@return
{
[Diff]
} an array of diffs
*/
Commit
.
prototype
.
getDiff
=
function
(
callback
)
{
var
commit
=
this
;
return
commit
.
getTree
(
)
.
then
(
function
(
thisTree
)
{
return
commit
.
getParents
(
)
.
then
(
function
(
parents
)
{
var
diffs
;
if
(
parents
.
length
)
{
diffs
=
parents
.
map
(
function
(
parent
)
{
return
parent
.
getTree
(
)
.
then
(
function
(
parentTree
)
{
return
thisTree
.
diff
(
parentTree
)
;
}
)
;
}
)
;
}
else
{
diffs
=
[
thisTree
.
diff
(
null
)
]
;
}
return
Promise
.
all
(
diffs
)
;
}
)
;
}
)
.
then
(
function
(
diffs
)
{
if
(
typeof
callback
===
"function"
)
{
callback
(
null
,
diffs
)
;
}
return
diffs
;
}
,
callback
)
;
}
;
/**
* The sha of this commit
*
@return
{
String
}
*/
Commit
.
prototype
.
toString
=
function
(
)
{
return
this
.
sha
(
)
;
}
;
module
.
exports
=
Commit
;
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