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using LibGit2Sharp.Core;
namespace LibGit2Sharp
{
/// <summary>
/// Provides helper overloads to a <see cref="BranchCollection"/>.
/// </summary>
public static class BranchCollectionExtensions
{
/// <summary>
/// Create a new local branch with the specified name
/// </summary>
/// <param name="name">The name of the branch.</param>
/// <param name="committish">Revparse spec for the target commit.</param>
/// <param name="allowOverwrite">True to allow silent overwriting a potentially existing branch, false otherwise.</param>
/// <param name="branches">The <see cref="BranchCollection"/> being worked with.</param>
/// <returns>A new <see cref="Branch"/>.</returns>
public static Branch Add(this BranchCollection branches, string name, string committish, bool allowOverwrite = false)
{
Ensure.ArgumentNotNullOrEmptyString(name, "name");
Ensure.ArgumentNotNullOrEmptyString(committish, "committish");
var commit = branches.repo.LookupCommit(committish);
var createdFrom = committish != "HEAD"
? committish
: branches.repo.Info.IsHeadDetached
? commit.Sha
: branches.repo.Head.Name;
return branches.Add(name, commit, allowOverwrite, "branch: Created from " + createdFrom);
}
/// <summary>
/// Deletes the branch with the specified name.
/// </summary>
/// <param name="name">The name of the branch to delete.</param>
/// <param name="isRemote">True if the provided <paramref name="name"/> is the name of a remote branch, false otherwise.</param>
/// <param name="branches">The <see cref="BranchCollection"/> being worked with.</param>
public static void Remove(this BranchCollection branches, string name, bool isRemote = false)
{
Ensure.ArgumentNotNullOrEmptyString(name, "name");
string branchName = isRemote ? Reference.RemoteTrackingBranchPrefix + name : name;
Branch branch = branches[branchName];
if (branch == null)
{
return;
}
branches.Remove(branch);
}
/// <summary>
/// Renames an existing local branch with a new name.
/// </summary>
/// <param name="currentName">The current branch name.</param>
/// <param name="newName">The new name the existing branch should bear.</param>
/// <param name="allowOverwrite">True to allow silent overwriting a potentially existing branch, false otherwise.</param>
/// <param name="branches">The <see cref="BranchCollection"/> being worked with.</param>
/// <returns>A new <see cref="Branch"/>.</returns>
public static Branch Move(this BranchCollection branches, string currentName, string newName, bool allowOverwrite = false)
{
Ensure.ArgumentNotNullOrEmptyString(currentName, "currentName");
Ensure.ArgumentNotNullOrEmptyString(newName, "newName");
Branch branch = branches[currentName];
if (branch == null)
{
throw new LibGit2SharpException("No branch named '{0}' exists in the repository.");
}
return branches.Move(branch, newName, allowOverwrite);
}
}
}
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