protected override async Task <CommandLineOperationSettings> GetSettings(ResolveContext context)
{
Assert.IsNotNull(context);
string inputPath = context.GetInputPath();
string workingDir = context.GetWorkingDirectory();
string path = Path.Join(workingDir, inputPath, FileName);
using FileStream st = File.Open(path, FileMode.Open, FileAccess.Read);
FileBasedCommandLineOperationSettings settings = await JsonFormatter.Deserialize <FileBasedCommandLineOperationSettings>(st).ConfigureAwait(false);
CommandLineOperationSettings res = new CommandLineOperationSettings
{
WorkingDirectory = settings.WorkingDirectory,
Shell = settings.Shell
};
foreach (string v in settings.Scripts)
{
CommandLineTemplate item = new CommandLineTemplate
{
Raw = v
};
res.Scripts.Add(item);
}
return(res);
}
public async Task Basic()
{
CommandLineTemplate builder = new CommandLineTemplate();
builder.Commands.Add("gcc");
builder.Arguments.Add("a.c");
builder.Raw = "--version";
_ = builder.WithFlag("ff", "-")
.WithFlag("O2", "-")
.WithOption("o", "a.out", "-")
.WithOption("cc", 1, "--")
.WithOption("cc", "a", "--")
.WithoutFlag("-ff")
.WithoutOption("--cc");
Assert.AreEqual(0, builder.GetVariables().Count);
Assert.AreEqual("gcc a.c -O2 -o a.out --version", string.Join(' ', await builder.Resolve(new ResolveContext())));
}
private void GenerateTemplatedCommandLine(CommandLineBuilder builder)
{
// Match all instances of [asdf], where "asdf" can be any combination of any
// characters *except* a [ or an ]. i.e., if "[ [ sdf ]" is passed, then we will
// match "[ sdf ]"
string matchString = @"\[[^\[\]]+\]";
Regex regex = new Regex(matchString, RegexOptions.ECMAScript);
MatchCollection matches = regex.Matches(CommandLineTemplate);
int indexOfEndOfLastSubstitution = 0;
foreach (Match match in matches)
{
if (match.Length == 0)
{
continue;
}
// Because we match non-greedily, in the case where we have input such as "[[[[[foo]", the match will
// be "[foo]". However, if there are multiple '[' in a row, we need to do some escaping logic, so we
// want to know what the first *consecutive* square bracket was.
int indexOfFirstBracketInMatch = match.Index;
// Indexing using "indexOfFirstBracketInMatch - 1" is safe here because it will always be
// greater than indexOfEndOfLastSubstitution, which will always be 0 or greater.
while (indexOfFirstBracketInMatch > indexOfEndOfLastSubstitution && CommandLineTemplate[indexOfFirstBracketInMatch - 1].Equals('['))
{
indexOfFirstBracketInMatch--;
}
// Append everything we know we want to add -- everything between where the last substitution ended and
// this match (including previous '[' that were not initially technically part of the match) begins.
if (indexOfFirstBracketInMatch != indexOfEndOfLastSubstitution)
{
builder.AppendTextUnquoted(CommandLineTemplate.Substring(indexOfEndOfLastSubstitution, indexOfFirstBracketInMatch - indexOfEndOfLastSubstitution));
}
// Now replace every "[[" with a literal '['. We can do this by simply counting the number of '[' between
// the first one and the start of the match, since by definition everything in between is an '['.
// + 1 because match.Index is also a bracket.
int openBracketsInARow = match.Index - indexOfFirstBracketInMatch + 1;
if (openBracketsInARow % 2 == 0)
{
// even number -- they all go away and the rest of the match is appended literally.
for (int i = 0; i < openBracketsInARow / 2; i++)
{
builder.AppendTextUnquoted("[");
}
builder.AppendTextUnquoted(match.Value.Substring(1, match.Value.Length - 1));
}
else
{
// odd number -- all but one get merged two at a time, and the rest of the match is substituted.
for (int i = 0; i < (openBracketsInARow - 1) / 2; i++)
{
builder.AppendTextUnquoted("[");
}
// Determine which property the user has specified in the template.
string propertyName = match.Value.Substring(1, match.Value.Length - 2);
if (String.Equals(propertyName, "AllOptions", StringComparison.OrdinalIgnoreCase))
{
// When [AllOptions] is specified, we append all switch-type options.
CommandLineBuilder tempBuilder = new CommandLineBuilder(true);
GenerateStandardCommandLine(tempBuilder, true);
builder.AppendTextUnquoted(tempBuilder.ToString());
}
else if (String.Equals(propertyName, "AdditionalOptions", StringComparison.OrdinalIgnoreCase))
{
BuildAdditionalArgs(builder);
}
else if (IsPropertySet(propertyName))
{
CommandLineToolSwitch property = _activeCommandLineToolSwitches[propertyName];
// verify the dependencies
if (VerifyDependenciesArePresent(property) && VerifyRequiredArgumentsArePresent(property, false))
{
CommandLineBuilder tempBuilder = new CommandLineBuilder(true);
GenerateCommandsAccordingToType(tempBuilder, property, false);
builder.AppendTextUnquoted(tempBuilder.ToString());
}
}
else if (!PropertyExists(propertyName))
{
// If the thing enclosed in square brackets is not in fact a property, we
// don't want to replace it.
builder.AppendTextUnquoted('[' + propertyName + ']');
}
}
indexOfEndOfLastSubstitution = match.Index + match.Length;
}
builder.AppendTextUnquoted(CommandLineTemplate.Substring(indexOfEndOfLastSubstitution, CommandLineTemplate.Length - indexOfEndOfLastSubstitution));
}
