public static HashSet <string> GetFiles(
ResultCache cache,
IEnumerable <string> searchablePaths,
IEnumerable <IPattern> includePaths,
IEnumerable <IPattern> excludePaths,
string basePath = null)
{
searchablePaths = searchablePaths as string[] ?? searchablePaths.ToArray();
includePaths = includePaths as IPattern[] ?? includePaths.ToArray();
if (excludePaths != null)
{
excludePaths = excludePaths as IPattern[] ?? excludePaths.ToArray();
}
else
{
excludePaths = new List <IPattern>();
}
basePath = basePath ?? "./";
bool returnAbsolutePaths = Path.IsPathRooted(basePath);
string absBasePath;
if (basePath == "./" || basePath == ".")
{
absBasePath = new DirectoryInfo(Directory.GetCurrentDirectory()).FullName;
}
else
{
absBasePath = new DirectoryInfo(basePath).FullName;
}
(int hash, bool hasResults, HashSet <string> files)cacheRequest =
cache?.GetResultsOrReserve(
searchablePaths,
includePaths,
excludePaths,
basePath)
?? (0, false, null);
if (cacheRequest.hasResults)
{
Log.Debug("Getting files for query hash {{{0}}} from cached results for base path '{1}':",
cacheRequest.hash, basePath);
Log.IndentedCollection(cacheRequest.files, Log.Debug);
return(cacheRequest.files);
}
Log.Debug("Getting files for query hash {{{0}}} using base path '{1}' and provided include/exclude paths:",
cacheRequest.hash, basePath);
using (new CompositeDisposable(
new Log.ScopedIndent(),
new Log.ScopedTimer(Log.Level.Debug, "GetFiles(...)", $"{{{cacheRequest.hash,-11}}} {basePath}")))
{
Log.Debug("search paths:");
Log.IndentedCollection(searchablePaths, Log.Debug);
HashSet <string> includeFiles;
HashSet <GLOB> includeGlobs;
HashSet <RegexPattern> includeRegexes;
HashSet <string> excludeFiles;
HashSet <GLOB> excludeGlobs;
HashSet <RegexPattern> excludeRegexes;
(includeFiles, includeGlobs, includeRegexes) = ProcessFileValues(includePaths);
(excludeFiles, excludeGlobs, excludeRegexes) = ProcessFileValues(excludePaths);
var searchPathMatches = new Dictionary <string, List <PatternMatch> >();
foreach (string currentSearchPath in searchablePaths)
{
var currentMatches = new List <PatternMatch>();
var dir = new DirectoryInfo(new DirectoryInfo(
currentSearchPath == "./" || currentSearchPath == "."
? Directory.GetCurrentDirectory()
: currentSearchPath)
.FullName);
bool makeCandidatesAbsolute = Path.IsPathRooted(currentSearchPath);
if (!dir.Exists)
{
Log.Debug("Skipping searchable directory because it does not exist: {0}'", currentSearchPath);
continue;
}
string[] candidates = dir.GetFilesSafeRecursive("*")
.Select(f => GetPath(makeCandidatesAbsolute, f.FullName, absBasePath))
.Reverse()
.ToArray();
DirectoryInfo[] allDirs = dir.GetDirectoriesSafeRecursive("*")
.Reverse()
.Concat(new[] { dir })
.ToArray();
#region includes
if (includeGlobs != null && includeGlobs.Count > 0)
{
foreach (GLOB glob in includeGlobs)
{
IEnumerable <string> matchesForGlob = candidates.Where(f => glob.IsMatch(f));
currentMatches.AddRange(matchesForGlob.Select(
f => new PatternMatch(f, currentSearchPath, "glob \"" + glob.Pattern + "\"")));
}
}
if (includeRegexes != null && includeRegexes.Count > 0)
{
IEnumerable <PatternMatch> matchesForRegex = includeRegexes.SelectMany(
r => r.FilterMatches(candidates).Select(
f => new PatternMatch(f,
currentSearchPath,
r.ToString())));
currentMatches.AddRange(matchesForRegex);
}
var literalPatternMatches = new Dictionary <string, PatternMatch[]>();
if (includeFiles != null && includeFiles.Count > 0)
{
foreach (string filePattern in includeFiles.ToArray())
{
string[] matchesForFile =
(from dirInfo in allDirs
select Path.Combine(dirInfo.FullName, filePattern)
into includeFilePath
where File.Exists(includeFilePath)
select GetPath(makeCandidatesAbsolute, includeFilePath, absBasePath))
.ToArray();
PatternMatch[] patternMatchesForFile = matchesForFile.Select(
f => new PatternMatch(f, currentSearchPath, filePattern))
.ToArray();
if (patternMatchesForFile.Length > 0)
{
literalPatternMatches[filePattern] = patternMatchesForFile;
currentMatches.AddRange(patternMatchesForFile);
}
}
}
#endregion
#region excludes
IEnumerable <PatternMatch> tempMatches = currentMatches;
if (excludeGlobs != null && excludeGlobs.Count > 0)
{
var excludeGlob = new CompositeGlob(excludeGlobs, null);
tempMatches = tempMatches.Where(m => !excludeGlob.IsMatch(m.File))
.ToList(); // Helps with debugging
}
if (excludeRegexes != null && excludeRegexes.Count > 0)
{
tempMatches = tempMatches.Where(m => excludeRegexes.All(r => !r.Regex.IsMatch(m.File)))
.ToList(); // Helps with debugging
}
if (excludeFiles != null && excludeFiles.Count > 0)
{
tempMatches = tempMatches.Where(m => excludeFiles.All(x => x != Path.GetFileName(m.File)))
.ToList(); // Helps with debugging
}
#endregion
#region literal validation
currentMatches = tempMatches.ToList();
foreach (KeyValuePair <string, PatternMatch[]> kvp in literalPatternMatches)
{
PatternMatch[] patternMatchesForFile = kvp.Value;
if (patternMatchesForFile.Length > 1 &&
currentMatches.Intersect(patternMatchesForFile).Count() > 1)
{
Log.Warn("The literal pattern '{0}' matched more than one file.",
kvp.Key);
Log.Warn("Only the first match '{0}' will be returned. See all matches below.",
patternMatchesForFile.First().File);
int count = 0;
Log.IndentedCollection(patternMatchesForFile,
p => $"{p.File} (from {p.SearchPath}) {(count++ == 0 ? "*" : "")}",
Log.Warn);
currentMatches = currentMatches.Except(patternMatchesForFile.Skip(1)).ToList();
}
}
searchPathMatches[currentSearchPath] = currentMatches;
#endregion
}
#region validation
IEnumerable <PatternMatch> allMatches = searchPathMatches.Values.SelectMany(v => v);
IEnumerable <PatternMatch> finalMatches = ValidateMatches(allMatches, includePaths);
#endregion
#region results
HashSet <string> allMatchedFiles =
finalMatches.Select(m => GetPath(returnAbsolutePaths, m.File, absBasePath)).ToHashSet();
Log.Debug("include globs:");
Log.IndentedCollection(includeGlobs, s => s.Pattern, Log.Debug);
Log.Debug("include regexes:");
Log.IndentedCollection(includeRegexes, r => r.Value, Log.Debug);
Log.Debug("include literals:");
Log.IndentedCollection(includeFiles, Log.Debug);
Log.Debug("exclude globs:");
Log.IndentedCollection(excludeGlobs, s => s.Pattern, Log.Debug);
Log.Debug("exclude regexes:");
Log.IndentedCollection(excludeRegexes, r => r.Value, Log.Debug);
Log.Debug("exclude literals:");
Log.IndentedCollection(excludeFiles, Log.Debug);
Log.Debug("matched files:");
Log.IndentedCollection(allMatchedFiles, Log.Debug);
cache?.CacheResults(allMatchedFiles, cacheRequest.hash);
return(allMatchedFiles);
#endregion
}
}