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import
*
as
os
from
'os'
;
import
*
as
path
from
'path'
;
import
{
IS_WINDOWS
,
IS_LINUX
,
getOSInfo
}
from
'./utils.js'
;
import
*
as
semver
from
'semver'
;
import
*
as
installer
from
'./install-python.js'
;
import
*
as
core
from
'@actions/core'
;
import
*
as
tc
from
'@actions/tool-cache'
;
import
*
as
exec
from
'@actions/exec'
;
// Python has "scripts" or "bin" directories where command-line tools that come with packages are installed.
// This is where pip is, along with anything that pip installs.
// There is a separate directory for `pip install --user`.
//
// For reference, these directories are as follows:
// macOS / Linux:
// <sys.prefix>/bin (by default /usr/local/bin, but not on hosted agents -- see the `else`)
// (--user) ~/.local/bin
// Windows:
// <Python installation dir>\Scripts
// (--user) %APPDATA%\Python\PythonXY\Scripts
// See https://docs.python.org/3/library/sysconfig.html
function
binDir
(
installDir
:
string
)
:
string
{
if
(
IS_WINDOWS
)
{
return
path
.
join
(
installDir
,
'Scripts'
)
;
}
else
{
return
path
.
join
(
installDir
,
'bin'
)
;
}
}
async
function
installPip
(
pythonLocation
:
string
)
{
const
pipVersion
=
core
.
getInput
(
'pip-version'
)
;
// Validate pip-version format: major[.minor][.patch]
const
versionRegex
=
/
^
\d
+
(
\.
\d
+
)
?
(
\.
\d
+
)
?
$
/
;
if
(
pipVersion
&&
!
versionRegex
.
test
(
pipVersion
)
)
{
throw
new
Error
(
`Invalid pip-version "
${
pipVersion
}
". Please specify a version in the format major[.minor][.patch].`
)
;
}
if
(
pipVersion
)
{
core
.
info
(
`pip-version input is specified. Installing pip version
${
pipVersion
}
`
)
;
await
exec
.
exec
(
`
${
pythonLocation
}
/python -m pip install --upgrade pip==
${
pipVersion
}
--disable-pip-version-check --no-warn-script-location`
)
;
}
}
export
async
function
useCpythonVersion
(
version
:
string
,
architecture
:
string
,
updateEnvironment
:
boolean
,
checkLatest
:
boolean
,
allowPreReleases
:
boolean
,
freethreaded
:
boolean
)
:
Promise
<
InstalledVersion
>
{
let
manifest
:
tc
.
IToolRelease
[
]
|
null
=
null
;
const
{
version
:
desugaredVersionSpec
,
freethreaded
:
versionFreethreaded
}
=
desugarVersion
(
version
)
;
let
semanticVersionSpec
=
pythonVersionToSemantic
(
desugaredVersionSpec
,
allowPreReleases
)
;
if
(
versionFreethreaded
)
{
// Use the freethreaded version if it was specified in the input, e.g., 3.13t
freethreaded
=
true
;
}
core
.
debug
(
`Semantic version spec of
${
version
}
is
${
semanticVersionSpec
}
`
)
;
if
(
freethreaded
)
{
// Free threaded versions use an architecture suffix like `x64-freethreaded`
core
.
debug
(
`Using freethreaded version of
${
semanticVersionSpec
}
`
)
;
architecture
+=
'-freethreaded'
;
}
if
(
checkLatest
)
{
manifest
=
await
installer
.
getManifest
(
)
;
const
resolvedVersion
=
(
await
installer
.
findReleaseFromManifest
(
semanticVersionSpec
,
architecture
,
manifest
)
)
?.
version
;
if
(
resolvedVersion
)
{
semanticVersionSpec
=
resolvedVersion
;
core
.
info
(
`Resolved as '
${
semanticVersionSpec
}
'`
)
;
}
else
{
core
.
info
(
`Failed to resolve version
${
semanticVersionSpec
}
from manifest`
)
;
}
}
let
installDir
:
string
|
null
=
tc
.
find
(
'Python'
,
semanticVersionSpec
,
architecture
)
;
if
(
!
installDir
)
{
core
.
info
(
`Version
${
semanticVersionSpec
}
was not found in the local cache`
)
;
const
foundRelease
=
await
installer
.
findReleaseFromManifest
(
semanticVersionSpec
,
architecture
,
manifest
)
;
if
(
foundRelease
&&
foundRelease
.
files
&&
foundRelease
.
files
.
length
>
0
)
{
core
.
info
(
`Version
${
semanticVersionSpec
}
is available for downloading`
)
;
await
installer
.
installCpythonFromRelease
(
foundRelease
)
;
installDir
=
tc
.
find
(
'Python'
,
semanticVersionSpec
,
architecture
)
;
}
}
if
(
!
installDir
)
{
const
osInfo
=
await
getOSInfo
(
)
;
const
msg
=
[
`The version '
${
version
}
' with architecture '
${
architecture
}
' was not found for
${
osInfo
?
`
${
osInfo
.
osName
}
${
osInfo
.
osVersion
}
`
:
'this operating system'
}
.`
]
;
if
(
freethreaded
)
{
msg
.
push
(
`Free threaded versions are only available for Python 3.13.0 and later.`
)
;
}
msg
.
push
(
`The list of all available versions can be found here:
${
installer
.
MANIFEST_URL
}
`
)
;
throw
new
Error
(
msg
.
join
(
os
.
EOL
)
)
;
}
const
_binDir
=
binDir
(
installDir
)
;
const
binaryExtension
=
IS_WINDOWS
?
'.exe'
:
''
;
const
pythonPath
=
path
.
join
(
IS_WINDOWS
?
installDir
:
_binDir
,
`python
${
binaryExtension
}
`
)
;
if
(
updateEnvironment
)
{
core
.
exportVariable
(
'pythonLocation'
,
installDir
)
;
core
.
exportVariable
(
'PKG_CONFIG_PATH'
,
installDir
+
'/lib/pkgconfig'
)
;
core
.
exportVariable
(
'pythonLocation'
,
installDir
)
;
// https://cmake.org/cmake/help/latest/module/FindPython.html#module:FindPython
core
.
exportVariable
(
'Python_ROOT_DIR'
,
installDir
)
;
// https://cmake.org/cmake/help/latest/module/FindPython2.html#module:FindPython2
core
.
exportVariable
(
'Python2_ROOT_DIR'
,
installDir
)
;
// https://cmake.org/cmake/help/latest/module/FindPython3.html#module:FindPython3
core
.
exportVariable
(
'Python3_ROOT_DIR'
,
installDir
)
;
core
.
exportVariable
(
'PKG_CONFIG_PATH'
,
installDir
+
'/lib/pkgconfig'
)
;
if
(
IS_LINUX
)
{
const
libPath
=
process
.
env
.
LD_LIBRARY_PATH
?
`:
${
process
.
env
.
LD_LIBRARY_PATH
}
`
:
''
;
const
pyLibPath
=
path
.
join
(
installDir
,
'lib'
)
;
if
(
!
libPath
.
split
(
':'
)
.
includes
(
pyLibPath
)
)
{
core
.
exportVariable
(
'LD_LIBRARY_PATH'
,
pyLibPath
+
libPath
)
;
}
}
core
.
addPath
(
installDir
)
;
core
.
addPath
(
_binDir
)
;
if
(
IS_WINDOWS
)
{
// Add --user directory
// `installDir` from tool cache should look like $RUNNER_TOOL_CACHE/Python/<semantic version>/x64/
// Extract version details
const
version
=
path
.
basename
(
path
.
dirname
(
installDir
)
)
;
const
major
=
semver
.
major
(
version
)
;
const
minor
=
semver
.
minor
(
version
)
;
const
basePath
=
process
.
env
[
'APPDATA'
]
||
''
;
let
versionSuffix
=
`
${
major
}
${
minor
}
`
;
// Append '-32' for x86 architecture if Python version is >= 3.10
if
(
architecture
===
'x86'
&&
(
major
>
3
||
(
major
===
3
&&
minor
>=
10
)
)
)
{
versionSuffix
+=
'-32'
;
}
else
if
(
architecture
===
'arm64'
)
{
versionSuffix
+=
'-arm64'
;
}
// Append 't' for freethreaded builds
if
(
freethreaded
)
{
versionSuffix
+=
't'
;
if
(
architecture
===
'x86-freethreaded'
)
{
versionSuffix
+=
'-32'
;
}
else
if
(
architecture
===
'arm64-freethreaded'
)
{
versionSuffix
+=
'-arm64'
;
}
}
// Add user Scripts path
const
userScriptsDir
=
path
.
join
(
basePath
,
'Python'
,
`Python
${
versionSuffix
}
`
,
'Scripts'
)
;
core
.
addPath
(
userScriptsDir
)
;
}
// On Linux and macOS, pip will create the --user directory and add it to PATH as needed.
}
const
installed
=
versionFromPath
(
installDir
)
;
let
pythonVersion
=
installed
;
if
(
freethreaded
)
{
// Add the freethreaded suffix to the version (e.g., 3.13.1t)
pythonVersion
+=
't'
;
}
core
.
setOutput
(
'python-version'
,
pythonVersion
)
;
core
.
setOutput
(
'python-path'
,
pythonPath
)
;
const
binaryPath
=
IS_WINDOWS
?
installDir
:
_binDir
;
await
installPip
(
binaryPath
)
;
return
{
impl
:
'CPython'
,
version
:
pythonVersion
}
;
}
/* Desugar free threaded and dev versions */
export
function
desugarVersion
(
versionSpec
:
string
)
{
const
{
version
,
freethreaded
}
=
desugarFreeThreadedVersion
(
versionSpec
)
;
return
{
version
:
desugarDevVersion
(
version
)
,
freethreaded
}
;
}
/* Identify freethreaded versions like, 3.13t, 3.13.1t, 3.13t-dev.
* Returns the version without the `t` and the architectures suffix, if freethreaded */
function
desugarFreeThreadedVersion
(
versionSpec
:
string
)
{
const
majorMinor
=
/
^
(
\d
+
\.
\d
+
(
\.
\d
+
)
?
)
(
t
)
$
/
;
if
(
majorMinor
.
test
(
versionSpec
)
)
{
return
{
version
:
versionSpec
.
replace
(
majorMinor
,
'$1'
)
,
freethreaded
:
true
}
;
}
const
devVersion
=
/
^
(
\d
+
\.
\d
+
)
(
t
)
(
-
d
e
v
)
$
/
;
if
(
devVersion
.
test
(
versionSpec
)
)
{
return
{
version
:
versionSpec
.
replace
(
devVersion
,
'$1$3'
)
,
freethreaded
:
true
}
;
}
return
{
version
:
versionSpec
,
freethreaded
:
false
}
;
}
/** Convert versions like `3.8-dev` to a version like `~3.8.0-0`. */
function
desugarDevVersion
(
versionSpec
:
string
)
{
const
devVersion
=
/
^
(
\d
+
)
\.
(
\d
+
)
-
d
e
v
$
/
;
return
versionSpec
.
replace
(
devVersion
,
'~$1.$2.0-0'
)
;
}
/** Extracts python version from install path from hosted tool cache as described in README.md */
function
versionFromPath
(
installDir
:
string
)
{
const
parts
=
installDir
.
split
(
path
.
sep
)
;
const
idx
=
parts
.
findIndex
(
part
=>
part
===
'PyPy'
||
part
===
'Python'
)
;
return
parts
[
idx
+
1
]
||
''
;
}
interface
InstalledVersion
{
impl
:
string
;
version
:
string
;
}
/**
* Python's prelease versions look like `3.7.0b2`.
* This is the one part of Python versioning that does not look like semantic versioning, which specifies `3.7.0-b2`.
* If the version spec contains prerelease versions, we need to convert them to the semantic version equivalent.
*
* For easier use of the action, we also map 'x.y' to allow pre-release before 'x.y.0' release if allowPreReleases is true
*/
export
function
pythonVersionToSemantic
(
versionSpec
:
string
,
allowPreReleases
:
boolean
)
{
const
prereleaseVersion
=
/
(
\d
+
\.
\d
+
\.
\d
+
)
(
(?:
a
|
b
|
r
c
)
\d
*
)
/
g
;
const
majorMinor
=
/
^
(
\d
+
)
\.
(
\d
+
)
$
/
;
let
result
=
versionSpec
.
replace
(
prereleaseVersion
,
'$1-$2'
)
;
if
(
allowPreReleases
)
{
result
=
result
.
replace
(
majorMinor
,
'~$1.$2.0-0'
)
;
}
return
result
;
}
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