Pontos de extremidade da API REST para importações de origem

Sobre as importações de origem

Aviso: devido aos níveis muito baixos de uso e alternativas disponíveis, a API Source Imports foi descontinuado. Para obter mais detalhes e alternativas, consulte o log de mudanças.

Você pode usar esses pontos de extremidade para iniciar uma importação de um repositório Git hospedado com outro serviço. Esta é a mesma funcionalidade que a do importador GitHub. Para obter mais informações, confira "Importar um repositório usando o Importador do GitHub". Uma importação de código-fonte típica iniciaria a importação e, em seguida, (opcionalmente) atualizaria os autores e/ou atualizaria a preferência pelo uso do Git LFS se existissem arquivos grandes na importação. Você também pode criar um webhook que escuta no RepositoryImportEvent para descobrir o status da importação.

Esses pontos de extremidade só dão suporte à autenticação por meio de um personal access token (classic). Para obter mais informações, confira "Gerenciar seus tokens de acesso pessoal".

O seguinte diagrama fornece um exemplo mais detalhado:

+---------+                     +--------+                              +---------------------+
| Tooling |                     | GitHub |                              | Original Repository |
+---------+                     +--------+                              +---------------------+
     |                              |                                              |
     |  Start import                |                                              |
     |----------------------------->|                                              |
     |                              |                                              |
     |                              |  Download source data                        |
     |                              |--------------------------------------------->|
     |                              |                        Begin streaming data  |
     |                              |<---------------------------------------------|
     |                              |                                              |
     |  Get import progress         |                                              |
     |----------------------------->|                                              |
     |       "status": "importing"  |                                              |
     |<-----------------------------|                                              |
     |                              |                                              |
     |  Get commit authors          |                                              |
     |----------------------------->|                                              |
     |                              |                                              |
     |  Map a commit author         |                                              |
     |----------------------------->|                                              |
     |                              |                                              |
     |                              |                                              |
     |                              |                       Finish streaming data  |
     |                              |<---------------------------------------------|
     |                              |                                              |
     |                              |  Rewrite commits with mapped authors         |
     |                              |------+                                       |
     |                              |      |                                       |
     |                              |<-----+                                       |
     |                              |                                              |
     |                              |  Update repository on GitHub                 |
     |                              |------+                                       |
     |                              |      |                                       |
     |                              |<-----+                                       |
     |                              |                                              |
     |  Map a commit author         |                                              |
     |----------------------------->|                                              |
     |                              |  Rewrite commits with mapped authors         |
     |                              |------+                                       |
     |                              |      |                                       |
     |                              |<-----+                                       |
     |                              |                                              |
     |                              |  Update repository on GitHub                 |
     |                              |------+                                       |
     |                              |      |                                       |
     |                              |<-----+                                       |
     |                              |                                              |
     |  Get large files             |                                              |
     |----------------------------->|                                              |
     |                              |                                              |
     |  opt_in to Git LFS           |                                              |
     |----------------------------->|                                              |
     |                              |  Rewrite commits for large files             |
     |                              |------+                                       |
     |                              |      |                                       |
     |                              |<-----+                                       |
     |                              |                                              |
     |                              |  Update repository on GitHub                 |
     |                              |------+                                       |
     |                              |      |                                       |
     |                              |<-----+                                       |
     |                              |                                              |
     |  Get import progress         |                                              |
     |----------------------------->|                                              |
     |        "status": "complete"  |                                              |
     |<-----------------------------|                                              |
     |                              |                                              |
     |                              |                                              |

Get an import status

View the progress of an import.

Warning

Endpoint closing down notice: Due to very low levels of usage and available alternatives, this endpoint is closing down and will no longer be available from 00:00 UTC on April 12, 2024. For more details and alternatives, see the changelog.

Import status

This section includes details about the possible values of the status field of the Import Progress response.

An import that does not have errors will progress through these steps:

detecting - the "detection" step of the import is in progress because the request did not include a vcs parameter. The import is identifying the type of source control present at the URL.
importing - the "raw" step of the import is in progress. This is where commit data is fetched from the original repository. The import progress response will include commit_count (the total number of raw commits that will be imported) and percent (0 - 100, the current progress through the import).
mapping - the "rewrite" step of the import is in progress. This is where SVN branches are converted to Git branches, and where author updates are applied. The import progress response does not include progress information.
pushing - the "push" step of the import is in progress. This is where the importer updates the repository on GitHub Enterprise Cloud. The import progress response will include push_percent, which is the percent value reported by git push when it is "Writing objects".
complete - the import is complete, and the repository is ready on GitHub Enterprise Cloud.

If there are problems, you will see one of these in the status field:

auth_failed - the import requires authentication in order to connect to the original repository. To update authentication for the import, please see the Update an import section.
error - the import encountered an error. The import progress response will include the failed_step and an error message. Contact GitHub Enterprise Cloud Support for more information.
detection_needs_auth - the importer requires authentication for the originating repository to continue detection. To update authentication for the import, please see the Update an import section.
detection_found_nothing - the importer didn't recognize any source control at the URL. To resolve, Cancel the import and retry with the correct URL.
detection_found_multiple - the importer found several projects or repositories at the provided URL. When this is the case, the Import Progress response will also include a project_choices field with the possible project choices as values. To update project choice, please see the Update an import section.

The project_choices field

When multiple projects are found at the provided URL, the response hash will include a project_choices field, the value of which is an array of hashes each representing a project choice. The exact key/value pairs of the project hashes will differ depending on the version control type.

Git LFS related fields

This section includes details about Git LFS related fields that may be present in the Import Progress response.

use_lfs - describes whether the import has been opted in or out of using Git LFS. The value can be opt_in, opt_out, or undecided if no action has been taken.
has_large_files - the boolean value describing whether files larger than 100MB were found during the importing step.
large_files_size - the total size in gigabytes of files larger than 100MB found in the originating repository.
large_files_count - the total number of files larger than 100MB found in the originating repository. To see a list of these files, make a "Get Large Files" request.

Tokens de acesso refinados para "Get an import status"

Esse ponto de extremidade funciona com os seguintes tipos de token refinados:

O token refinado deve ter os seguintes conjuntos de permissões:

"Contents" repository permissions (read)

Parâmetros para "Get an import status"

Cabeçalhos
Nome, Tipo, Descrição
`accept` string Setting to `application/vnd.github+json` is recommended.

Parâmetros de caminho
Nome, Tipo, Descrição
`owner` string Obrigatório The account owner of the repository. The name is not case sensitive.
`repo` string Obrigatório The name of the repository without the `.git` extension. The name is not case sensitive.

Códigos de status de resposta HTTP para "Get an import status"

Código de status	Descrição
`200`	OK
`404`	Resource not found
`503`	Unavailable due to service under maintenance.

Exemplos de código para "Get an import status"

Se você acessar o GitHub em GHE.com, substitua api.github.com pelo subdomínio dedicado da sua empresa em api.SUBDOMAIN.ghe.com.

Exemplo de solicitação

get/repos/{owner}/{repo}/import

curl -L \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2022-11-28" \
  https://api.github.com/repos/OWNER/REPO/import

Response

Status: 200

{
  "vcs": "subversion",
  "use_lfs": true,
  "vcs_url": "http://svn.mycompany.com/svn/myproject",
  "status": "complete",
  "status_text": "Done",
  "has_large_files": true,
  "large_files_size": 132331036,
  "large_files_count": 1,
  "authors_count": 4,
  "url": "https://api.github.com/repos/octocat/socm/import",
  "html_url": "https://import.github.com/octocat/socm/import",
  "authors_url": "https://api.github.com/repos/octocat/socm/import/authors",
  "repository_url": "https://api.github.com/repos/octocat/socm"
}

Start an import

Start a source import to a GitHub Enterprise Cloud repository using GitHub Enterprise Cloud Importer. Importing into a GitHub Enterprise Cloud repository with GitHub Actions enabled is not supported and will return a status 422 Unprocessable Entity response.

Warning

Endpoint closing down notice: Due to very low levels of usage and available alternatives, this endpoint is closing down and will no longer be available from 00:00 UTC on April 12, 2024. For more details and alternatives, see the changelog.

Tokens de acesso refinados para "Start an import"

Esse ponto de extremidade funciona com os seguintes tipos de token refinados:

O token refinado deve ter os seguintes conjuntos de permissões:

"Contents" repository permissions (write)

Parâmetros para "Start an import"

Cabeçalhos
Nome, Tipo, Descrição
`accept` string Setting to `application/vnd.github+json` is recommended.

Parâmetros de caminho
Nome, Tipo, Descrição
`owner` string Obrigatório The account owner of the repository. The name is not case sensitive.
`repo` string Obrigatório The name of the repository without the `.git` extension. The name is not case sensitive.

Parâmetros do corpo
Nome, Tipo, Descrição
`vcs_url` string Obrigatório The URL of the originating repository.
`vcs` string The originating VCS type. Without this parameter, the import job will take additional time to detect the VCS type before beginning the import. This detection step will be reflected in the response. Pode ser um dos: `subversion`, `git`, `mercurial`, `tfvc`
`vcs_username` string If authentication is required, the username to provide to `vcs_url`.
`vcs_password` string If authentication is required, the password to provide to `vcs_url`.
`tfvc_project` string For a tfvc import, the name of the project that is being imported.

Códigos de status de resposta HTTP para "Start an import"

Código de status	Descrição
`201`	Created
`404`	Resource not found
`422`	Validation failed, or the endpoint has been spammed.
`503`	Unavailable due to service under maintenance.

Exemplos de código para "Start an import"

Se você acessar o GitHub em GHE.com, substitua api.github.com pelo subdomínio dedicado da sua empresa em api.SUBDOMAIN.ghe.com.

Exemplo de solicitação

put/repos/{owner}/{repo}/import

curl -L \
  -X PUT \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2022-11-28" \
  https://api.github.com/repos/OWNER/REPO/import \
  -d '{"vcs":"subversion","vcs_url":"http://svn.mycompany.com/svn/myproject","vcs_username":"octocat","vcs_password":"secret"}'

Response

Status: 201

{
  "vcs": "subversion",
  "use_lfs": true,
  "vcs_url": "http://svn.mycompany.com/svn/myproject",
  "status": "importing",
  "status_text": "Importing...",
  "has_large_files": false,
  "large_files_size": 0,
  "large_files_count": 0,
  "authors_count": 0,
  "commit_count": 1042,
  "url": "https://api.github.com/repos/octocat/socm/import",
  "html_url": "https://import.github.com/octocat/socm/import",
  "authors_url": "https://api.github.com/repos/octocat/socm/import/authors",
  "repository_url": "https://api.github.com/repos/octocat/socm"
}

Update an import

An import can be updated with credentials or a project choice by passing in the appropriate parameters in this API request. If no parameters are provided, the import will be restarted.

Some servers (e.g. TFS servers) can have several projects at a single URL. In those cases the import progress will have the status detection_found_multiple and the Import Progress response will include a project_choices array. You can select the project to import by providing one of the objects in the project_choices array in the update request.

Warning

Endpoint closing down notice: Due to very low levels of usage and available alternatives, this endpoint is closing down and will no longer be available from 00:00 UTC on April 12, 2024. For more details and alternatives, see the changelog.

Tokens de acesso refinados para "Update an import"

Esse ponto de extremidade funciona com os seguintes tipos de token refinados:

O token refinado deve ter os seguintes conjuntos de permissões:

"Contents" repository permissions (write)

Parâmetros para "Update an import"

Cabeçalhos
Nome, Tipo, Descrição
`accept` string Setting to `application/vnd.github+json` is recommended.

Parâmetros de caminho
Nome, Tipo, Descrição
`owner` string Obrigatório The account owner of the repository. The name is not case sensitive.
`repo` string Obrigatório The name of the repository without the `.git` extension. The name is not case sensitive.

Parâmetros do corpo
Nome, Tipo, Descrição
`vcs_username` string The username to provide to the originating repository.
`vcs_password` string The password to provide to the originating repository.
`vcs` string The type of version control system you are migrating from. Pode ser um dos: `subversion`, `tfvc`, `git`, `mercurial`
`tfvc_project` string For a tfvc import, the name of the project that is being imported.

Códigos de status de resposta HTTP para "Update an import"

Código de status	Descrição
`200`	OK
`503`	Unavailable due to service under maintenance.

Exemplos de código para "Update an import"

Se você acessar o GitHub em GHE.com, substitua api.github.com pelo subdomínio dedicado da sua empresa em api.SUBDOMAIN.ghe.com.

Exemplos de solicitação

Select the example type

patch/repos/{owner}/{repo}/import

curl -L \
  -X PATCH \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2022-11-28" \
  https://api.github.com/repos/OWNER/REPO/import \
  -d '{"vcs_username":"octocat","vcs_password":"secret"}'

Example 1

Status: 200

{
  "vcs": "subversion",
  "use_lfs": true,
  "vcs_url": "http://svn.mycompany.com/svn/myproject",
  "status": "detecting",
  "url": "https://api.github.com/repos/octocat/socm/import",
  "html_url": "https://import.github.com/octocat/socm/import",
  "authors_url": "https://api.github.com/repos/octocat/socm/import/authors",
  "repository_url": "https://api.github.com/repos/octocat/socm"
}

Cancel an import

Stop an import for a repository.

Warning

Endpoint closing down notice: Due to very low levels of usage and available alternatives, this endpoint is closing down and will no longer be available from 00:00 UTC on April 12, 2024. For more details and alternatives, see the changelog.

Tokens de acesso refinados para "Cancel an import"

Esse ponto de extremidade funciona com os seguintes tipos de token refinados:

O token refinado deve ter os seguintes conjuntos de permissões:

"Contents" repository permissions (write)

Parâmetros para "Cancel an import"

Cabeçalhos
Nome, Tipo, Descrição
`accept` string Setting to `application/vnd.github+json` is recommended.

Parâmetros de caminho
Nome, Tipo, Descrição
`owner` string Obrigatório The account owner of the repository. The name is not case sensitive.
`repo` string Obrigatório The name of the repository without the `.git` extension. The name is not case sensitive.

Códigos de status de resposta HTTP para "Cancel an import"

Código de status	Descrição
`204`	No Content
`503`	Unavailable due to service under maintenance.

Exemplos de código para "Cancel an import"

Se você acessar o GitHub em GHE.com, substitua api.github.com pelo subdomínio dedicado da sua empresa em api.SUBDOMAIN.ghe.com.

Exemplo de solicitação

delete/repos/{owner}/{repo}/import

curl -L \
  -X DELETE \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2022-11-28" \
  https://api.github.com/repos/OWNER/REPO/import

Response

Status: 204

Get commit authors

Each type of source control system represents authors in a different way. For example, a Git commit author has a display name and an email address, but a Subversion commit author just has a username. The GitHub Enterprise Cloud Importer will make the author information valid, but the author might not be correct. For example, it will change the bare Subversion username hubot into something like hubot <hubot@12341234-abab-fefe-8787-fedcba987654>.

This endpoint and the Map a commit author endpoint allow you to provide correct Git author information.

Warning

Endpoint closing down notice: Due to very low levels of usage and available alternatives, this endpoint is closing down and will no longer be available from 00:00 UTC on April 12, 2024. For more details and alternatives, see the changelog.

Tokens de acesso refinados para "Get commit authors"

Esse ponto de extremidade funciona com os seguintes tipos de token refinados:

O token refinado deve ter os seguintes conjuntos de permissões:

"Contents" repository permissions (read)

Parâmetros para "Get commit authors"

Cabeçalhos
Nome, Tipo, Descrição
`accept` string Setting to `application/vnd.github+json` is recommended.

Parâmetros de caminho
Nome, Tipo, Descrição
`owner` string Obrigatório The account owner of the repository. The name is not case sensitive.
`repo` string Obrigatório The name of the repository without the `.git` extension. The name is not case sensitive.

Parâmetros de consulta
Nome, Tipo, Descrição
`since` integer A user ID. Only return users with an ID greater than this ID.

Códigos de status de resposta HTTP para "Get commit authors"

Código de status	Descrição
`200`	OK
`404`	Resource not found
`503`	Unavailable due to service under maintenance.

Exemplos de código para "Get commit authors"

Se você acessar o GitHub em GHE.com, substitua api.github.com pelo subdomínio dedicado da sua empresa em api.SUBDOMAIN.ghe.com.

Exemplo de solicitação

get/repos/{owner}/{repo}/import/authors

curl -L \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2022-11-28" \
  https://api.github.com/repos/OWNER/REPO/import/authors

Response

Status: 200

[
  {
    "id": 2268557,
    "remote_id": "nobody@fc7da526-431c-80fe-3c8c-c148ff18d7ef",
    "remote_name": "nobody",
    "email": "hubot@github.com",
    "name": "Hubot",
    "url": "https://api.github.com/repos/octocat/socm/import/authors/2268557",
    "import_url": "https://api.github.com/repos/octocat/socm/import"
  },
  {
    "id": 2268558,
    "remote_id": "svner@fc7da526-431c-80fe-3c8c-c148ff18d7ef",
    "remote_name": "svner",
    "email": "svner@fc7da526-431c-80fe-3c8c-c148ff18d7ef",
    "name": "svner",
    "url": "https://api.github.com/repos/octocat/socm/import/authors/2268558",
    "import_url": "https://api.github.com/repos/octocat/socm/import"
  },
  {
    "id": 2268559,
    "remote_id": "svner@example.com@fc7da526-431c-80fe-3c8c-c148ff18d7ef",
    "remote_name": "svner@example.com",
    "email": "svner@example.com@fc7da526-431c-80fe-3c8c-c148ff18d7ef",
    "name": "svner@example.com",
    "url": "https://api.github.com/repos/octocat/socm/import/authors/2268559",
    "import_url": "https://api.github.com/repos/octocat/socm/import"
  }
]

Map a commit author

Update an author's identity for the import. Your application can continue updating authors any time before you push new commits to the repository.

Warning

Endpoint closing down notice: Due to very low levels of usage and available alternatives, this endpoint is closing down and will no longer be available from 00:00 UTC on April 12, 2024. For more details and alternatives, see the changelog.

Tokens de acesso refinados para "Map a commit author"

Esse ponto de extremidade funciona com os seguintes tipos de token refinados:

O token refinado deve ter os seguintes conjuntos de permissões:

"Contents" repository permissions (write)

Parâmetros para "Map a commit author"

Cabeçalhos
Nome, Tipo, Descrição
`accept` string Setting to `application/vnd.github+json` is recommended.

Parâmetros de caminho
Nome, Tipo, Descrição
`owner` string Obrigatório The account owner of the repository. The name is not case sensitive.
`repo` string Obrigatório The name of the repository without the `.git` extension. The name is not case sensitive.
`author_id` integer Obrigatório

Parâmetros do corpo
Nome, Tipo, Descrição
`email` string The new Git author email.
`name` string The new Git author name.

Códigos de status de resposta HTTP para "Map a commit author"

Código de status	Descrição
`200`	OK
`404`	Resource not found
`422`	Validation failed, or the endpoint has been spammed.
`503`	Unavailable due to service under maintenance.

Exemplos de código para "Map a commit author"

Se você acessar o GitHub em GHE.com, substitua api.github.com pelo subdomínio dedicado da sua empresa em api.SUBDOMAIN.ghe.com.

Exemplo de solicitação

patch/repos/{owner}/{repo}/import/authors/{author_id}

curl -L \
  -X PATCH \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2022-11-28" \
  https://api.github.com/repos/OWNER/REPO/import/authors/AUTHOR_ID \
  -d '{"email":"hubot@github.com","name":"Hubot the Robot"}'

Response

Status: 200

{
  "id": 2268557,
  "remote_id": "nobody@fc7da526-431c-80fe-3c8c-c148ff18d7ef",
  "remote_name": "nobody",
  "email": "hubot@github.com",
  "name": "Hubot",
  "url": "https://api.github.com/repos/octocat/socm/import/authors/2268557",
  "import_url": "https://api.github.com/repos/octocat/socm/import"
}

Get large files

List files larger than 100MB found during the import

Warning

Endpoint closing down notice: Due to very low levels of usage and available alternatives, this endpoint is closing down and will no longer be available from 00:00 UTC on April 12, 2024. For more details and alternatives, see the changelog.

Tokens de acesso refinados para "Get large files"

Esse ponto de extremidade funciona com os seguintes tipos de token refinados:

O token refinado deve ter os seguintes conjuntos de permissões:

"Contents" repository permissions (read)

Parâmetros para "Get large files"

Cabeçalhos
Nome, Tipo, Descrição
`accept` string Setting to `application/vnd.github+json` is recommended.

Parâmetros de caminho
Nome, Tipo, Descrição
`owner` string Obrigatório The account owner of the repository. The name is not case sensitive.
`repo` string Obrigatório The name of the repository without the `.git` extension. The name is not case sensitive.

Códigos de status de resposta HTTP para "Get large files"

Código de status	Descrição
`200`	OK
`503`	Unavailable due to service under maintenance.

Exemplos de código para "Get large files"

Se você acessar o GitHub em GHE.com, substitua api.github.com pelo subdomínio dedicado da sua empresa em api.SUBDOMAIN.ghe.com.

Exemplo de solicitação

get/repos/{owner}/{repo}/import/large_files

curl -L \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2022-11-28" \
  https://api.github.com/repos/OWNER/REPO/import/large_files

Response

Status: 200

[
  {
    "ref_name": "refs/heads/master",
    "path": "foo/bar/1",
    "oid": "d3d9446802a44259755d38e6d163e820",
    "size": 10485760
  },
  {
    "ref_name": "refs/heads/master",
    "path": "foo/bar/2",
    "oid": "6512bd43d9caa6e02c990b0a82652dca",
    "size": 11534336
  },
  {
    "ref_name": "refs/heads/master",
    "path": "foo/bar/3",
    "oid": "c20ad4d76fe97759aa27a0c99bff6710",
    "size": 12582912
  }
]

Update Git LFS preference

You can import repositories from Subversion, Mercurial, and TFS that include files larger than 100MB. This ability is powered by Git LFS.

You can learn more about our LFS feature and working with large files on our help site.

Warning

Endpoint closing down notice: Due to very low levels of usage and available alternatives, this endpoint is closing down and will no longer be available from 00:00 UTC on April 12, 2024. For more details and alternatives, see the changelog.

Tokens de acesso refinados para "Update Git LFS preference"

Esse ponto de extremidade funciona com os seguintes tipos de token refinados:

O token refinado deve ter os seguintes conjuntos de permissões:

"Contents" repository permissions (write)

Parâmetros para "Update Git LFS preference"

Cabeçalhos
Nome, Tipo, Descrição
`accept` string Setting to `application/vnd.github+json` is recommended.

Parâmetros de caminho
Nome, Tipo, Descrição
`owner` string Obrigatório The account owner of the repository. The name is not case sensitive.
`repo` string Obrigatório The name of the repository without the `.git` extension. The name is not case sensitive.

Parâmetros do corpo
Nome, Tipo, Descrição
`use_lfs` string Obrigatório Whether to store large files during the import. `opt_in` means large files will be stored using Git LFS. `opt_out` means large files will be removed during the import. Pode ser um dos: `opt_in`, `opt_out`

Códigos de status de resposta HTTP para "Update Git LFS preference"

Código de status	Descrição
`200`	OK
`422`	Validation failed, or the endpoint has been spammed.
`503`	Unavailable due to service under maintenance.

Exemplos de código para "Update Git LFS preference"

Se você acessar o GitHub em GHE.com, substitua api.github.com pelo subdomínio dedicado da sua empresa em api.SUBDOMAIN.ghe.com.

Exemplo de solicitação

patch/repos/{owner}/{repo}/import/lfs

curl -L \
  -X PATCH \
  -H "Accept: application/vnd.github+json" \
  -H "Authorization: Bearer <YOUR-TOKEN>" \
  -H "X-GitHub-Api-Version: 2022-11-28" \
  https://api.github.com/repos/OWNER/REPO/import/lfs \
  -d '{"use_lfs":"opt_in"}'

Response

Status: 200

{
  "vcs": "subversion",
  "use_lfs": true,
  "vcs_url": "http://svn.mycompany.com/svn/myproject",
  "status": "complete",
  "status_text": "Done",
  "has_large_files": true,
  "large_files_size": 132331036,
  "large_files_count": 1,
  "authors_count": 4,
  "url": "https://api.github.com/repos/octocat/socm/import",
  "html_url": "https://import.github.com/octocat/socm/import",
  "authors_url": "https://api.github.com/repos/octocat/socm/import/authors",
  "repository_url": "https://api.github.com/repos/octocat/socm"
}