From 6f2865228cb02f0ba0b58990a9d3006dbe2692c6 Mon Sep 17 00:00:00 2001
From: Alex Beregszaszi <alex@rtfs.hu>
Date: Wed, 18 Oct 2017 12:54:47 +0100
Subject: Add readStandardInput helper

---
 libdevcore/CommonIO.cpp | 14 ++++++++++++++
 libdevcore/CommonIO.h   |  3 +++
 2 files changed, 17 insertions(+)

(limited to 'libdevcore')

diff --git a/libdevcore/CommonIO.cpp b/libdevcore/CommonIO.cpp
index eb7af83e..8c7e08f6 100644
--- a/libdevcore/CommonIO.cpp
+++ b/libdevcore/CommonIO.cpp
@@ -66,6 +66,20 @@ string dev::readFileAsString(string const& _file)
 	return readFile<string>(_file);
 }
 
+string dev::readStandardInput()
+{
+	string ret;
+	while (!cin.eof())
+	{
+		string tmp;
+		// NOTE: this will read until EOF or NL
+		getline(cin, tmp);
+		ret.append(tmp);
+		ret.append("\n");
+	}
+	return ret;
+}
+
 void dev::writeFile(std::string const& _file, bytesConstRef _data, bool _writeDeleteRename)
 {
 	namespace fs = boost::filesystem;
diff --git a/libdevcore/CommonIO.h b/libdevcore/CommonIO.h
index 0c702818..33769ec3 100644
--- a/libdevcore/CommonIO.h
+++ b/libdevcore/CommonIO.h
@@ -34,6 +34,9 @@ namespace dev
 /// If the file doesn't exist or isn't readable, returns an empty container / bytes.
 std::string readFileAsString(std::string const& _file);
 
+/// Retrieve and returns the contents of standard input (until EOF).
+std::string readStandardInput();
+
 /// Write the given binary data into the given file, replacing the file if it pre-exists.
 /// Throws exception on error.
 /// @param _writeDeleteRename useful not to lose any data: If set, first writes to another file in
-- 
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