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Merge pull request #1 from jvelilla/wrap_libgit2_dev
Wrap libgit2 dev
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‎Readme.md‎

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@@ -10,14 +10,19 @@ allowing you to write native speed custom Git applications in any language which
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* [WrapC](https://github.com/eiffel-wrap-c/WrapC) tool.
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* [Libgit2 v0.28.3](https://github.com/libgit2/libgit2/releases).
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== Status ==
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### Status
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The binding is work in progress.
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Tested on Linux and Windows 64 bits.
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## Examples
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* Git Init: `shows how to initialize a new repo`
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* Git Status: `shows how to use the status APIs`
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* [Git Init](./examples/init): `shows how to initialize a new repo`
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* [Git Status](./examples/status): `shows how to use the status APIs`
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* [Git Add](./examples/add) `shows how to modify the index`
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* [Git Checkout](./examples/checkout) `shows how to perform checkouts`.
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* [Git Describe](./examples/describe) `shows how to describe commits`.
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* [Git ls-files](./examples/ls_files) `shows how to view all files currently in the index.`
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* [Git push](./examples/push) `shows how to git push <remote> <branch>`.
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[Guide to linking libgit2](https://libgit2.org/docs/guides/build-and-link/) on various platforms
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@@ -28,6 +33,7 @@ On Linux to install version 0.28.3 you will need to do the following.
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$ cmake ..
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$ sudo cmake --build . --target install
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Optionally you can use [vckpg](https://github.com/Microsoft/vcpkg), a C++ Library Manager for Windows, Linux, and MacOS.
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Windows example
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‎examples/push/application.e‎

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note
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description: "[
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libgit2 "push" example - shows how to git push <remote> <branch>
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]"
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class APPLICATION
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inherit
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COMMAND_LINE_PARSER
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rename
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make as make_command_line_parser
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end
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create
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make
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feature {NONE} --Initialization
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make
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do
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create git_repository
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path := "."
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remote := ""
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branch := ""
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make_command_line_parser
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process_arguments
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push_repository
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end
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feature -- Intiialize Repository
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push_repository
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local
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ini: INTEGER
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repo: GIT_REPOSITORY_STRUCT_API
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iniopts: GIT_REPOSITORY_INIT_OPTIONS_STRUCT_API
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l_remote: GIT_REMOTE_STRUCT_API
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git_remote: GIT_REMOTE
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refspec: STRING
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l_options: GIT_PUSH_OPTIONS_STRUCT_API
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a_array: GIT_STRARRAY_STRUCT_API
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callbacks: GIT_REMOTE_CALLBACKS_STRUCT_API
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callback_dispatcher: GIT_CRED_ACQUIRE_CB_DISPATCHER
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do
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ini := {LIBGIT2_INITIALIZER_API}.git_libgit2_init
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print ("%N Intializing Libgit2")
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create repo.make
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if git_repository.git_repository_open (repo, (create {PATH}.make_from_string (path)).out) < 0 then
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print ("%NCould not open repository")
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{EXCEPTIONS}.die (1)
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end
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-- get the remote
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create l_remote.make
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create git_remote
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if git_remote.git_remote_lookup (l_remote, repo, remote) < 0 then
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print ("%NCould not get remote repository " + remote)
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{EXCEPTIONS}.die (1)
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end
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create callbacks.make
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if git_remote.git_remote_init_callbacks (callbacks, 1) < 0 then
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print ("%NCould not intialize callback ")
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{EXCEPTIONS}.die (1)
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end
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create callback_dispatcher.make (agent cred_acquire_cb )
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callbacks.set_credentials (callback_dispatcher.c_dispatcher)
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-- connect to remote
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if git_remote.git_remote_connect (l_remote, {GIT_DIRECTION_ENUM_API}.git_direction_push, callbacks, Void, Void) < 0 then
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print ("%NCould not connect to remote repository " + remote)
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{EXCEPTIONS}.die (1)
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end
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-- add a push refspec
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create refspec.make_from_string ("refs/heads/")
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refspec.append (branch)
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if git_remote.git_remote_add_push (repo, remote, refspec + ":" + refspec) < 0 then
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print ("%NCould not add push ")
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{EXCEPTIONS}.die (1)
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end
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-- configure options
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create l_options.make
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if git_remote.git_push_init_options (l_options, 1) < 0 then
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print ("%NCould not configure options ")
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{EXCEPTIONS}.die (1)
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end
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create a_array.make
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init_array (a_array, {ARRAY [STRING]}<<refspec + ":" + refspec>>)
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-- do the push
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if git_remote.git_remote_upload (l_remote, a_array, l_options) < 0 then
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print ("%NCould not do push ")
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{EXCEPTIONS}.die (1)
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end
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git_repository.git_repository_free (repo)
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git_remote.git_remote_free (l_remote)
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end
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init_array (a_array: GIT_STRARRAY_STRUCT_API; l_array: ARRAY [STRING])
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local
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mp: MANAGED_POINTER
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do
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create mp.make (l_array.count * {PLATFORM}.pointer_bytes)
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across l_array as ic loop
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mp.put_pointer ((create {C_STRING}.make (ic.item)).item, (ic.cursor_index - 1) * {PLATFORM}.pointer_bytes )
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end
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a_array.set_count (l_array.count)
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a_array.set_strings (mp.item)
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end
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cred_acquire_cb (a_cred: POINTER; a_url: POINTER; a_username_from_url: POINTER; a_allowed_types: INTEGER; a_payload: POINTER): INTEGER
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local
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l_user_name: STRING
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exit: BOOLEAN
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cred: GIT_CRED_STRUCT_API
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git_cred: GIT_CREDENTIALS_API
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l_password: STRING
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l_privkey: STRING
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l_pubkey: STRING
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do
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if a_username_from_url /= default_pointer then
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l_user_name := (create {C_STRING}.make_by_pointer (a_username_from_url)).string
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exit := l_user_name.is_empty
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else
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print ("%NUsername:")
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io.read_line
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l_user_name := io.last_string.twin
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exit := l_user_name.is_empty
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end
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if not exit and then a_allowed_types & {GIT_CREDTYPE_T_ENUM_API}.GIT_CREDTYPE_SSH_KEY > 0 then
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print ("%NSSH key:")
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io.read_line
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l_privkey := io.last_string.twin
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print ("%NPassword:")
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l_password := read_password
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if l_password.is_empty or l_privkey.is_empty then
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exit := True
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end
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create l_pubkey.make_from_string (l_password)
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l_pubkey.append_string (".pub")
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create git_cred
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create cred.make_by_pointer (a_cred)
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Result := git_cred.git_cred_ssh_key_new(cred, l_user_name, l_pubkey, l_privkey, l_password)
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elseif not exit and then a_allowed_types & {GIT_CREDTYPE_T_ENUM_API}.GIT_CREDTYPE_USERPASS_PLAINTEXT > 0 then
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print ("%NPassword:")
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l_password := read_password
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exit := l_password.is_empty
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if not exit then
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create git_cred
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create cred.make_by_pointer (a_cred)
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Result := git_cred.git_cred_userpass_plaintext_new(cred, l_user_name, l_password)
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end
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else
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if not exit then
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create git_cred
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create cred.make_by_pointer (a_cred)
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Result := git_cred.git_cred_username_new (cred, l_user_name)
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end
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end
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end
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feature {NONE} -- Process Arguments
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process_arguments
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-- Process command line arguments
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local
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shared_value: STRING
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do
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if match_long_option ("git-dir") then
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if is_next_option_long_option and then has_next_option_value then
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create path.make_from_string (next_option_value)
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consume_option
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else
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print("%N Missing command line parameter --git-dir=<dir>")
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usage
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{EXCEPTIONS}.die (1)
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end
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end
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if has_next_option and then not is_next_option_long_option then
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create remote.make_from_string (next_option)
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consume_option
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else
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print("%N Missing command line parameter <remote>%N")
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usage
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{EXCEPTIONS}.die (1)
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end
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if has_next_option and then not is_next_option_long_option then
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create branch.make_from_string (next_option)
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consume_option
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else
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print("%N Missing command line parameter <branch>%N")
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usage
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{EXCEPTIONS}.die (1)
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end
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end
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usage
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local
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str: STRING
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do
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str := "[
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git_push [--git-dir=<directory>]
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<remote>
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<branch>
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]"
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print("%N")
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print (str)
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end
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read_password: STRING
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local
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l_ptr: POINTER
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do
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l_ptr := c_read_password
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if l_ptr /= default_pointer then
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Result := (create {C_STRING}.make_by_pointer (l_ptr)).string
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else
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Result := ""
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end
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end
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c_read_password: POINTER
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external "C inline"
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alias
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"[
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#define ENTER 13
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#define TAB 9
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#define BKSP 8
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char* pwd;
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int i = 0;
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char ch;
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while(1){
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ch = getch(); //get key
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if(ch == ENTER || ch == TAB){
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pwd[i] = '\0';
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break;
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}else if(ch == BKSP){
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if(i > 0){
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i--;
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printf("\b \b"); //for backspace
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}
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}else{
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pwd[i++] = ch;
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printf("* \b"); //to replace password character with *
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}
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}//while ends here
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return pwd;
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]"
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end
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feature -- Options
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path: STRING
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remote: STRING
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branch: STRING
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git_repository: LIBGIT2_REPOSITORY
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end

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