/// <summary>Tries to get a property from the specified path (<c>svn propget</c>)</summary>
/// <remarks>Eats all (non-argument) exceptions</remarks>
/// <returns>True if the property is fetched, otherwise false</returns>
/// <remarks>Equivalent to GetProperty with <see cref="SvnGetPropertyArgs" />'s ThrowOnError set to false</remarks>
public bool TryGetProperty(SvnTarget target, string propertyName, out string value)
{
if (target == null)
{
throw new ArgumentNullException(nameof(target));
}
if (propertyName == null)
{
throw new ArgumentNullException(nameof(propertyName));
}
value = null;
var args = new SvnGetPropertyArgs();
args.ThrowOnError = false;
if (GetProperty(target, propertyName, args, out var result))
{
if (result.Count > 0)
{
value = result[0].StringValue;
return(value != null);
}
// Fall through if no property fetched
}
return(false);
}
/// <summary>Sets the specified property on the specfied path to value</summary>
/// <remarks>Use <see cref="DeleteProperty(string, string, SvnSetPropertyArgs)" /> to remove an existing property</remarks>
public unsafe bool GetProperty(SvnTarget target, string propertyName, SvnGetPropertyArgs args, out SvnTargetPropertyCollection properties)
{
if (target == null)
{
throw new ArgumentNullException(nameof(target));
}
if (propertyName == null)
{
throw new ArgumentNullException(nameof(propertyName));
}
properties = null;
EnsureState(SvnContextState.AuthorizationInitialized);
using var pool = new AprPool(_pool);
using var store = new ArgsStore(this, args, pool);
var pegRev = target.Revision.AllocSvnRevision(pool);
var rev = args.Revision.Or(target.Revision).AllocSvnRevision(pool);
int actualRev = 0;
apr_hash_t.__Internal *pHash = null;
sbyte *pName = pool.AllocString(propertyName);
sbyte *prefix = null;
sbyte *targetName = target.AllocAsString(pool);
if (!svn_path.svn_path_is_url(targetName))
{
prefix = targetName;
targetName = target.AllocAsString(pool, true);
}
svn_error_t r = svn_client.svn_client_propget5(
(void **)&pHash,
null,
pName,
targetName,
pegRev,
rev,
ref actualRev,
(svn_depth_t)args.Depth,
CreateChangeListsList(args.ChangeLists, pool), // Intersect ChangeLists
CtxHandle,
pool.Handle,
pool.Handle);
if (pHash != null)
{
var rd = new SvnTargetPropertyCollection();
apr_hash_t hash = apr_hash_t.__CreateInstance(new IntPtr(pHash));
for (apr_hash_index_t hi = apr_hash.apr_hash_first(pool.Handle, hash); hi != null; hi = apr_hash.apr_hash_next(hi))
{
sbyte *pKey;
long keyLen = 0;
svn_string_t.__Internal *propVal;
apr_hash.apr_hash_this(hi, (void **)&pKey, ref keyLen, (void **)&propVal);
SvnTarget itemTarget;
if (prefix != null && !svn_path.svn_path_is_url(pKey))
{
string path = Utf8_PathPtrToString(
svn_dirent_uri.svn_dirent_join(
prefix,
svn_dirent_uri.svn_dirent_skip_ancestor(targetName, pKey),
pool.Handle),
pool);
if (!string.IsNullOrEmpty(path))
{
itemTarget = path;
}
else
{
itemTarget = ".";
}
}
else
{
itemTarget = Utf8_PtrToUri(pKey, SvnNodeKind.Unknown);
}
var propValStr = svn_string_t.__CreateInstance(new IntPtr(propVal));
rd.Add(SvnPropertyValue.Create(pName, propValStr, itemTarget, propertyName));
}
properties = rd;
}
return(args.HandleResult(this, r, target));
}