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using System;
using System.Text;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection;
public static class Program {
public static int Main (string[] _args) {
var args = new List<string> (_args);
bool useStdout = false, showHelp = false, strictMode = false;
for (int i = 0; i < args.Count; i++) {
var arg = args[i];
if (!arg.StartsWith ("-"))
continue;
switch (arg) {
case "-?":
case "--help":
case "-h":
showHelp = true;
break;
case "--trace":
case "--trace1":
SourcesParser.TraceLevel = 1;
break;
case "--trace2":
SourcesParser.TraceLevel = 2;
break;
case "--trace3":
SourcesParser.TraceLevel = 3;
break;
case "--trace4":
SourcesParser.TraceLevel = 4;
break;
case "--stdout":
useStdout = true;
break;
case "--strict":
strictMode = true;
break;
default:
Console.Error.WriteLine ("Unrecognized switch " + arg);
break;
}
args.RemoveAt (i);
i--;
}
if (args.Count != 4)
showHelp = true;
if (showHelp) {
Console.Error.WriteLine ("Usage: mcs/build/gensources.exe [options] (outputFileName|--stdout) libraryDirectoryAndName platformName profileName");
Console.Error.WriteLine ("You can specify * for platformName and profileName to read all sources files");
Console.Error.WriteLine ("Available options:");
Console.Error.WriteLine ("--help -h -?");
Console.Error.WriteLine (" Show command line info");
Console.Error.WriteLine ("--trace1 --trace2 --trace3 --trace4");
Console.Error.WriteLine (" Enable diagnostic output");
Console.Error.WriteLine ("--stdout");
Console.Error.WriteLine (" Writes results to standard output (omit outputFileName if you use this)");
Console.Error.WriteLine ("--strict");
Console.Error.WriteLine (" Produces an error exit code if files or directories are invalid/missing");
return 1;
}
var myAssembly = Assembly.GetExecutingAssembly ();
var codeBase = new Uri (myAssembly.CodeBase);
var executablePath = Path.GetFullPath (codeBase.LocalPath);
var executableDirectory = Path.GetDirectoryName (executablePath);
var outFile = Path.GetFullPath (args[0]);
var libraryFullName = Path.GetFullPath (args[1]);
var platformName = args[2];
var profileName = args[3];
var platformsFolder = Path.Combine (executableDirectory, "platforms");
var profilesFolder = Path.Combine (executableDirectory, "profiles");
var libraryDirectory = Path.GetDirectoryName (libraryFullName);
var libraryName = Path.GetFileName (libraryFullName);
var parser = new SourcesParser (platformsFolder, profilesFolder);
var result = parser.Parse (libraryDirectory, libraryName, platformName, profileName);
if (SourcesParser.TraceLevel > 0)
Console.Error.WriteLine ($"// Writing sources for platform {platformName} and profile {profileName}, relative to {libraryDirectory}, to {outFile}.");
TextWriter output;
if (useStdout)
output = Console.Out;
else
output = new StreamWriter (outFile);
using (output) {
foreach (var fileName in result.GetFileNames ().OrderBy (s => s, StringComparer.Ordinal))
output.WriteLine (fileName);
}
if (strictMode)
return result.ErrorCount;
else
return 0;
}
}
public struct ParseEntry {
public string SourcesFileName;
public string Directory;
public string Pattern;
public string HostPlatform;
public string ProfileName;
}
public struct Source {
public string FileName;
}
public class ParseResult {
public readonly string LibraryDirectory, LibraryName;
public readonly List<ParseEntry> Sources = new List<ParseEntry> ();
public readonly List<ParseEntry> Exclusions = new List<ParseEntry> ();
// FIXME: This is a bad spot for this value but enumerators don't have outparam support
public int ErrorCount = 0;
public ParseResult (string libraryDirectory, string libraryName) {
LibraryDirectory = libraryDirectory;
LibraryName = libraryName;
}
private static string GetRelativePath (string fullPath, string relativeToDirectory) {
fullPath = fullPath.Replace (SourcesParser.DirectorySeparator, "/");
relativeToDirectory = relativeToDirectory.Replace (SourcesParser.DirectorySeparator, "/");
if (!relativeToDirectory.EndsWith (SourcesParser.DirectorySeparator))
relativeToDirectory += SourcesParser.DirectorySeparator;
var dirUri = new Uri (relativeToDirectory);
var pathUri = new Uri (fullPath);
var relativeUri = Uri.UnescapeDataString (
dirUri.MakeRelativeUri (pathUri).OriginalString
).Replace ("/", SourcesParser.DirectorySeparator);
if (SourcesParser.TraceLevel >= 4)
Console.Error.WriteLine ($"// {fullPath} -> {relativeUri}");
return relativeUri;
}
private IEnumerable<string> EnumerateMatches (
IEnumerable<ParseEntry> entries,
string hostPlatformName, string profileName
) {
foreach (var entry in entries) {
if (
(hostPlatformName != null) &&
(entry.HostPlatform ?? hostPlatformName) != hostPlatformName
)
continue;
if (
(profileName != null) &&
(entry.ProfileName ?? profileName) != profileName
)
continue;
var absolutePath = Path.Combine (entry.Directory, entry.Pattern);
var absoluteDirectory = Path.GetDirectoryName (absolutePath);
var absolutePattern = Path.GetFileName (absolutePath);
if (SourcesParser.TraceLevel >= 3) {
if ((absolutePattern != entry.Pattern) || (absoluteDirectory != entry.Directory))
Console.Error.WriteLine ($"// {entry.Directory} / {entry.Pattern} -> {absoluteDirectory} / {absolutePattern}");
}
if (!Directory.Exists (absoluteDirectory)) {
Console.Error.WriteLine ($"Directory does not exist: {Path.GetFullPath (absoluteDirectory)}");
ErrorCount += 1;
continue;
}
var matchingFiles = Directory.GetFiles (absoluteDirectory, absolutePattern);
foreach (var fileName in matchingFiles) {
var relativePath = GetRelativePath (fileName, LibraryDirectory);
yield return relativePath;
}
}
}
// If you loaded sources files for multiple profiles, you can use the arguments here
// to filter the results
public IEnumerable<string> GetFileNames (
string hostPlatformName = null, string profileName = null
) {
var encounteredFileNames = new HashSet<string> (StringComparer.Ordinal);
var excludedFiles = new HashSet<string> (
EnumerateMatches (Exclusions, hostPlatformName, profileName),
StringComparer.Ordinal
);
foreach (var fileName in EnumerateMatches (Sources, hostPlatformName, profileName)) {
if (excludedFiles.Contains (fileName)) {
if (SourcesParser.TraceLevel >= 3)
Console.Error.WriteLine ($"// Excluding {fileName}");
continue;
}
// Skip duplicates
if (encounteredFileNames.Contains (fileName))
continue;
encounteredFileNames.Add (fileName);
yield return fileName;
}
}
}
public class SourcesParser {
public static readonly string DirectorySeparator = new String (Path.DirectorySeparatorChar, 1);
public static int TraceLevel = 0;
private class State {
public ParseResult Result;
public string HostPlatform;
public string ProfileName;
public int SourcesFilesParsed, ExclusionsFilesParsed;
public List<ParseEntry> ParsedSources {
get {
return Result.Sources;
}
}
public List<ParseEntry> ParsedExclusions {
get {
return Result.Exclusions;
}
}
}
public readonly string[] AllHostPlatformNames;
public readonly string[] AllProfileNames;
private int ParseDepth = 0;
public SourcesParser (
string platformsFolder, string profilesFolder
) {
AllHostPlatformNames = Directory.GetFiles (platformsFolder, "*.make")
.Select (Path.GetFileNameWithoutExtension)
.ToArray ();
AllProfileNames = Directory.GetFiles (profilesFolder, "*.make")
.Select (Path.GetFileNameWithoutExtension)
.ToArray ();
}
public ParseResult Parse (string libraryDirectory, string libraryName, string hostPlatform, string profile) {
var state = new State {
Result = new ParseResult (libraryDirectory, libraryName),
ProfileName = profile,
HostPlatform = hostPlatform
};
var testPath = Path.Combine (libraryDirectory, $"{hostPlatform}_{profile}_{libraryName}");
var ok = TryParseSingleFile (state, testPath + ".sources", false);
TryParseSingleFile (state, testPath + ".exclude.sources", true);
if (ok) {
PrintSummary (state);
return state.Result;
}
state.HostPlatform = null;
testPath = Path.Combine (libraryDirectory, $"{profile}_{libraryName}");
ok = TryParseSingleFile (state, testPath + ".sources", false);
TryParseSingleFile (state, testPath + ".exclude.sources", true);
if (ok) {
PrintSummary (state);
return state.Result;
}
state.ProfileName = null;
testPath = Path.Combine (libraryDirectory, libraryName);
TryParseSingleFile (state, testPath + ".sources", false);
TryParseSingleFile (state, testPath + ".exclude.sources", true);
PrintSummary (state);
return state.Result;
}
public ParseResult Parse (string libraryDirectory, string libraryName) {
var state = new State {
Result = new ParseResult (libraryDirectory, libraryName)
};
string testPath = Path.Combine (libraryDirectory, libraryName);
TryParseSingleFile (state, testPath + ".sources", false);
TryParseSingleFile (state, testPath + ".exclude.sources", true);
foreach (var profile in AllProfileNames) {
state.ProfileName = profile;
foreach (var hostPlatform in AllHostPlatformNames) {
state.HostPlatform = hostPlatform;
testPath = Path.Combine (libraryDirectory, $"{hostPlatform}_{profile}_{libraryName}");
TryParseSingleFile (state, testPath + ".sources", false);
TryParseSingleFile (state, testPath + ".exclude.sources", true);
}
state.HostPlatform = null;
testPath = Path.Combine (libraryDirectory, $"{profile}_{libraryName}");
TryParseSingleFile (state, testPath + ".sources", false);
TryParseSingleFile (state, testPath + ".exclude.sources", true);
}
PrintSummary (state);
return state.Result;
}
private void PrintSummary (State state) {
if (TraceLevel > 0)
Console.Error.WriteLine ($"// Parsed {state.SourcesFilesParsed} sources file(s) and {state.ExclusionsFilesParsed} exclusions file(s).");
}
private void HandleMetaDirective (State state, string directory, bool asExclusionsList, string directive) {
var include = "#include ";
if (directive.StartsWith (include))
ParseSingleFile (state, Path.Combine (directory, directive.Substring (include.Length)), asExclusionsList);
}
private bool TryParseSingleFile (State state, string fileName, bool asExclusionsList) {
if (!File.Exists (fileName))
return false;
ParseSingleFile (state, fileName, asExclusionsList);
return true;
}
private void ParseSingleFile (State state, string fileName, bool asExclusionsList) {
var nullStr = "<none>";
if (TraceLevel >= 1)
Console.Error.WriteLine ($"// {new String (' ', ParseDepth * 2)}{fileName} [{state.HostPlatform ?? nullStr}] [{state.ProfileName ?? nullStr}]");
ParseDepth += 1;
var directory = Path.GetDirectoryName (fileName);
using (var sr = new StreamReader (fileName)) {
if (asExclusionsList)
state.ExclusionsFilesParsed++;
else
state.SourcesFilesParsed++;
string line;
while ((line = sr.ReadLine ()) != null) {
if (String.IsNullOrWhiteSpace (line))
continue;
if (line.StartsWith ("#")) {
HandleMetaDirective (state, directory, asExclusionsList, line);
continue;
}
var parts = line.Split (':');
if (parts.Length > 1) {
var explicitExclusions = parts[1].Split (',');
// gensources.sh implemented these explicit exclusions like so:
// ../foo/bar/*.cs:A.cs,B.cs
// This would generate exclusions for ../foo/bar/A.cs and ../foo/bar/B.cs,
// not ./A.cs and ./B.cs as you might expect
var mainPatternDirectory = Path.GetDirectoryName (parts[0]);
foreach (var pattern in explicitExclusions) {
state.ParsedExclusions.Add (new ParseEntry {
SourcesFileName = fileName,
Directory = directory,
Pattern = Path.Combine (mainPatternDirectory, pattern),
HostPlatform = state.HostPlatform,
ProfileName = state.ProfileName
});
}
}
(asExclusionsList ? state.ParsedExclusions : state.ParsedSources)
.Add (new ParseEntry {
SourcesFileName = fileName,
Directory = directory,
Pattern = parts[0],
HostPlatform = state.HostPlatform,
ProfileName = state.ProfileName
});
}
}
ParseDepth -= 1;
}
}
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