Use appropriate encoding rather than UTF-8 when reading from a pipe

The qmake code to read output from dependency-generation was adding
QByteArray values to a QString, thereby tacitly converting from UTF-8;
this is misguided. Hopefully, the command emits its output in the same
local 8-bit encoding that QString knows to convert from.

Simplified needlessly verbose loops (that violated Qt coding style) in
the process.

Fixes: QTBUG-75904
Change-Id: I27cf81ffcb63ebc999b8e4fc57abdb9a68c4d2b3
Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
This commit is contained in:
Edward Welbourne 2019-05-20 17:02:05 +02:00
parent 0c9b449aa4
commit 14aa1f7d6f

View File

@ -2002,14 +2002,11 @@ MakefileGenerator::writeExtraCompilerTargets(QTextStream &t)
QString dep_cmd = replaceExtraCompilerVariables(tmp_dep_cmd, inpf, tmp_out, LocalShell);
dep_cmd = dep_cd_cmd + fixEnvVariables(dep_cmd);
if (FILE *proc = QT_POPEN(dep_cmd.toLatin1().constData(), QT_POPEN_READ)) {
QString indeps;
while(!feof(proc)) {
int read_in = (int)fread(buff, 1, 255, proc);
if(!read_in)
break;
indeps += QByteArray(buff, read_in);
}
QByteArray depData;
while (int read_in = feof(proc) ? 0 : (int)fread(buff, 1, 255, proc))
depData.append(buff, read_in);
QT_PCLOSE(proc);
const QString indeps = QString::fromLocal8Bit(depData);
if(!indeps.isEmpty()) {
QDir outDir(Option::output_dir);
QStringList dep_cmd_deps = splitDeps(indeps, dep_lines);
@ -2090,14 +2087,11 @@ MakefileGenerator::writeExtraCompilerTargets(QTextStream &t)
QString dep_cmd = replaceExtraCompilerVariables(tmp_dep_cmd, inpf, out, LocalShell);
dep_cmd = dep_cd_cmd + fixEnvVariables(dep_cmd);
if (FILE *proc = QT_POPEN(dep_cmd.toLatin1().constData(), QT_POPEN_READ)) {
QString indeps;
while(!feof(proc)) {
int read_in = (int)fread(buff, 1, 255, proc);
if(!read_in)
break;
indeps += QByteArray(buff, read_in);
}
QByteArray depData;
while (int read_in = feof(proc) ? 0 : (int)fread(buff, 1, 255, proc))
depData.append(buff, read_in);
QT_PCLOSE(proc);
const QString indeps = QString::fromLocal8Bit(depData);
if(!indeps.isEmpty()) {
QDir outDir(Option::output_dir);
QStringList dep_cmd_deps = splitDeps(indeps, dep_lines);