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PhabricatorGitGraphStream.php
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Created
Mon, Oct 7, 14:43
Size
1 KB
Mime Type
text/x-php
Expires
Wed, Oct 9, 14:43 (2 d)
Engine
blob
Format
Raw Data
Handle
21458915
Attached To
rPH Phabricator
PhabricatorGitGraphStream.php
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<?php
final
class
PhabricatorGitGraphStream
extends
PhabricatorRepositoryGraphStream
{
private
$repository
;
private
$iterator
;
private
$parents
=
array
();
private
$dates
=
array
();
public
function
__construct
(
PhabricatorRepository
$repository
,
$start_commit
)
{
$this
->
repository
=
$repository
;
$future
=
$repository
->
getLocalCommandFuture
(
"log --format=%s %s --"
,
'%H%x01%P%x01%ct'
,
$start_commit
);
$this
->
iterator
=
new
LinesOfALargeExecFuture
(
$future
);
$this
->
iterator
->
setDelimiter
(
"
\n
"
);
$this
->
iterator
->
rewind
();
}
public
function
getParents
(
$commit
)
{
if
(!
isset
(
$this
->
parents
[
$commit
]))
{
$this
->
parseUntil
(
$commit
);
}
$parents
=
$this
->
parents
[
$commit
];
// NOTE: In Git, it is possible for a commit to list the same parent more
// than once. See T5226. Discard duplicate parents.
return
array_unique
(
$parents
);
}
public
function
getCommitDate
(
$commit
)
{
if
(!
isset
(
$this
->
dates
[
$commit
]))
{
$this
->
parseUntil
(
$commit
);
}
return
$this
->
dates
[
$commit
];
}
private
function
parseUntil
(
$commit
)
{
if
(
$this
->
isParsed
(
$commit
))
{
return
;
}
$gitlog
=
$this
->
iterator
;
while
(
$gitlog
->
valid
())
{
$line
=
$gitlog
->
current
();
$gitlog
->
next
();
$line
=
trim
(
$line
);
if
(!
strlen
(
$line
))
{
break
;
}
list
(
$hash
,
$parents
,
$epoch
)
=
explode
(
"
\1
"
,
$line
);
if
(
$parents
)
{
$parents
=
explode
(
' '
,
$parents
);
}
else
{
// First commit.
$parents
=
array
();
}
$this
->
dates
[
$hash
]
=
$epoch
;
$this
->
parents
[
$hash
]
=
$parents
;
if
(
$this
->
isParsed
(
$commit
))
{
return
;
}
}
throw
new
Exception
(
"No such commit '{$commit}' in repository!"
);
}
private
function
isParsed
(
$commit
)
{
return
isset
(
$this
->
dates
[
$commit
]);
}
}
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