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This file is part of Logtalk https://logtalk.org/ SPDX-FileCopyrightText: 1998-2023 Paulo Moura <pmoura@logtalk.org> SPDX-License-Identifier: Apache-2.0

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

git

This library provides access to a git project current branch and latest commit data (e.g. commit hash). Support for using this library on Windows operating-systems is experimental and may or may not work depending on the used Prolog backend.

API documentation

Open the [../../docs/library_index.html#git](../../docs/library_index.html#git) link in a web browser.

Loading

To load all entities in this library, load the loader.lgt file:

| ?- logtalk_load(git(loader)).

Testing

To test this library predicates, load the tester.lgt file:

| ?- logtalk_load(git(tester)).

Usage

All predicates take as first argument a directory, which should be either a git repository directory or a sub-directory of a git repository directory. The main predicate is commit_log/3. It provides access to the `git log` command when called with the `--oneline -n 1 --pretty=format:` options. By passing as second argument the desired format, it returns an atom with the formatted output. For example:

| ?- git::commit_log('/Users/pmoura/logtalk3', '%h%n%B', Output), write(Output), nl.

eccaa1a2a Update SVG diagrams

Output = 'eccaa1a2a\nUpdate SVG diagrams\n' yes

See e.g. the official documentation on `git log` pretty formats for details:

https://git-scm.com/docs/pretty-formats

Convenient predicates are also provided for common used formats such as the commit author and the commit hash. For example:

| ?- git::commit_author('/Users/pmoura/Documents/Logtalk/logtalk3', Author).

Author = 'Paulo Moura' yes

| ?- git::commit_hash('/Users/pmoura/Documents/Logtalk/logtalk3', Hash).

Hash = eccaa1a2a9495fef441915bbace84e0a4b0394a2 yes

It's also possible to get the name of the current local branch. For example:

| ?- git::branch('/Users/pmoura/Documents/Logtalk/logtalk3', Branch).

Branch = master yes