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// Author: w0rp <devw0rp@gmail.com>
// Description: This file provides a D program for implementing
// the stdin-wrapper on Windows.
import std.algorithm;
import std.array;
import std.file;
import std.process;
import std.stdio;
import std.path;
@safe
auto createTemporaryFilename(string fileExtension) {
import std.uuid;
string filename;
do {
const randomPart = randomUUID().toString.replace("-", "_");
filename = buildPath(tempDir(), "ale_" ~ randomPart ~ fileExtension);
} while (exists(filename));
return filename;
}
@trusted
void readStdinToFile(ref File tempFile) {
stdin.byChunk(4096).copy(tempFile.lockingTextWriter());
}
// Expand program names like "csslint" to "csslint.cmd"
// D is not able to perform this kind of expanstion in spawnProcess
@safe
string expandedProgramName(string name) {
auto extArray = environment["PATHEXT"].split(";");
foreach(pathDir; environment["PATH"].split(";")) {
foreach(extension; extArray) {
const candidate = buildPath(pathDir, name ~ extension);
if (exists(candidate)) {
return candidate;
}
}
}
// We were given a full path for a program name, so use that.
if (exists(name)) {
return name;
}
return "";
}
@trusted
int runLinterProgram(string[] args) {
const expandedName = expandedProgramName(args[0]);
writeln(expandedName);
if (expandedName) {
return wait(spawnProcess([expandedName] ~ args[1..$]));
}
return 1;
}
@safe
int main(string[] args) {
const filename = createTemporaryFilename(args[1]);
auto tempFile = File(filename, "w");
scope(exit) {
tempFile.close();
remove(filename);
}
readStdinToFile(tempFile);
tempFile.close();
return runLinterProgram(args[2..$] ~ [filename]);
}
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