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const
gitNodeConnector
=
global
.
createNodeConnector
(
"phcode-git-core"
,
exports
)
;
const
GIT_PROGRESS_EVENT
=
"git_progress"
;
let
ChildProcess
=
require
(
"child_process"
)
,
crossSpawn
=
require
(
'cross-spawn'
)
,
ProcessUtils
=
require
(
"./processUtils"
)
,
processMap
=
{
}
,
resolvedPaths
=
{
}
;
function
fixEOL
(
str
)
{
if
(
str
[
str
.
length
-
1
]
===
"\n"
)
{
str
=
str
.
slice
(
0
,
-
1
)
;
}
return
str
;
}
// handler with ChildProcess.exec
// this won't handle cases where process outputs a large string
function
execute
(
directory
,
command
,
args
,
opts
,
callback
)
{
// execute commands have to be escaped, spawn does this automatically and will fail if cmd is escaped
if
(
command
[
0
]
!==
"\""
||
command
[
command
.
length
-
1
]
!==
"\""
)
{
command
=
"\""
+
command
+
"\""
;
}
// http://nodejs.org/api/child_process.html#child_process_child_process_exec_command_options_callback
const
toExec
=
command
+
" "
+
args
.
join
(
" "
)
;
processMap
[
opts
.
cliId
]
=
ChildProcess
.
exec
(
toExec
,
{
cwd
:
directory
,
maxBuffer
:
20
*
1024
*
1024
}
,
function
(
err
,
stdout
,
stderr
)
{
delete
processMap
[
opts
.
cliId
]
;
callback
(
err
?
fixEOL
(
stderr
)
:
undefined
,
err
?
undefined
:
fixEOL
(
stdout
)
)
;
}
)
;
}
// handler with cross-spawn
function
join
(
arr
)
{
let
result
,
index
=
0
,
length
;
length
=
arr
.
reduce
(
function
(
l
,
b
)
{
return
l
+
b
.
length
;
}
,
0
)
;
result
=
new
Buffer
(
length
)
;
arr
.
forEach
(
function
(
b
)
{
b
.
copy
(
result
,
index
)
;
index
+=
b
.
length
;
}
)
;
return
fixEOL
(
result
.
toString
(
"utf8"
)
)
;
}
function
spawn
(
directory
,
command
,
args
,
opts
,
callback
)
{
// https://github.com/creationix/node-git
const
child
=
crossSpawn
(
command
,
args
,
{
cwd
:
directory
}
)
;
child
.
on
(
"error"
,
function
(
err
)
{
callback
(
err
.
stack
,
undefined
)
;
}
)
;
processMap
[
opts
.
cliId
]
=
child
;
let
exitCode
,
stdout
=
[
]
,
stderr
=
[
]
;
child
.
stdout
.
addListener
(
"data"
,
function
(
text
)
{
stdout
[
stdout
.
length
]
=
text
;
}
)
;
child
.
stderr
.
addListener
(
"data"
,
function
(
text
)
{
// Git writes its informational messages (such as Successfully rebased
// and updated) to stderr. This behavior is intentional because Git uses
// stderr for all output that is not a direct result of the command (e.g.,
// status updates, progress, or errors).
if
(
opts
.
watchProgress
)
{
gitNodeConnector
.
triggerPeer
(
GIT_PROGRESS_EVENT
,
{
cliId
:
opts
.
cliId
,
time
:
(
new
Date
(
)
)
.
getTime
(
)
,
data
:
fixEOL
(
text
.
toString
(
"utf8"
)
)
}
)
;
}
stderr
[
stderr
.
length
]
=
text
;
}
)
;
child
.
addListener
(
"exit"
,
function
(
code
)
{
exitCode
=
code
;
}
)
;
child
.
addListener
(
"close"
,
function
(
)
{
delete
processMap
[
opts
.
cliId
]
;
callback
(
exitCode
>
0
?
join
(
stderr
)
:
undefined
,
exitCode
>
0
?
undefined
:
join
(
stdout
)
)
;
}
)
;
child
.
stdin
.
end
(
)
;
}
function
doIfExists
(
method
,
directory
,
command
,
args
,
opts
,
callback
)
{
// do not call executableExists if we already know it exists
if
(
resolvedPaths
[
command
]
)
{
return
method
(
directory
,
resolvedPaths
[
command
]
,
args
,
opts
,
callback
)
;
}
ProcessUtils
.
executableExists
(
command
,
function
(
err
,
exists
,
resolvedPath
)
{
if
(
exists
)
{
resolvedPaths
[
command
]
=
resolvedPath
;
return
method
(
directory
,
resolvedPath
,
args
,
opts
,
callback
)
;
}
else
{
callback
(
"ProcessUtils can't resolve the path requested: "
+
command
)
;
}
}
)
;
}
function
executeIfExists
(
{
directory
,
command
,
args
,
opts
}
)
{
return
new
Promise
(
function
(
resolve
,
reject
)
{
doIfExists
(
execute
,
directory
,
command
,
args
,
opts
,
(
err
,
stdout
)
=>
{
if
(
err
)
{
reject
(
err
)
;
}
else
{
resolve
(
stdout
)
;
}
}
)
;
}
)
;
}
function
spawnIfExists
(
{
directory
,
command
,
args
,
opts
}
)
{
return
new
Promise
(
function
(
resolve
,
reject
)
{
doIfExists
(
spawn
,
directory
,
command
,
args
,
opts
,
(
err
,
stdout
)
=>
{
if
(
err
)
{
reject
(
err
)
;
}
else
{
resolve
(
stdout
)
;
}
}
)
;
}
)
;
}
function
kill
(
cliId
)
{
return
new
Promise
(
function
(
resolve
,
reject
)
{
const
process
=
processMap
[
cliId
]
;
if
(
!
process
)
{
reject
(
"Couldn't find process to kill with ID:"
+
cliId
)
;
}
delete
processMap
[
cliId
]
;
resolve
(
""
)
;
// at this point we resolve anyways as we cant do anything after deleting the object
ProcessUtils
.
getChildrenOfPid
(
process
.
pid
,
function
(
err
,
children
)
{
// kill also parent process
children
.
push
(
process
.
pid
)
;
children
.
forEach
(
function
(
pid
)
{
ProcessUtils
.
killSingleProcess
(
pid
)
;
}
)
;
}
)
;
}
)
;
}
function
which
(
{
command
}
)
{
return
new
Promise
(
function
(
resolve
,
reject
)
{
ProcessUtils
.
executableExists
(
command
,
function
(
err
,
exists
,
resolvedPath
)
{
if
(
exists
)
{
resolve
(
resolvedPath
)
;
}
else
{
reject
(
"ProcessUtils can't resolve the path requested: "
+
command
)
;
}
}
)
;
}
)
;
}
exports
.
execute
=
executeIfExists
;
exports
.
spawn
=
spawnIfExists
;
exports
.
kill
=
kill
;
exports
.
which
=
which
;
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