2 files changed, 35 insertions, 0 deletions
diff --git a/contrib/devtools/README.md b/contrib/devtools/README.md
index af5c000b03..60fe69e7e3 100644
--- a/contrib/devtools/README.md
+++ b/contrib/devtools/README.md
@@ -40,6 +40,12 @@ would be changed to:
 
 ```// Copyright (c) 2009-2015 The Bitcoin Core developers```
 
+gen-manpages.sh
+===============
+
+A small script to automatically create manpages in ../../doc/man by running the release binaries with the -help option.
+This requires help2man which can be found at: https://www.gnu.org/software/help2man/
+
 git-subtree-check.sh
 ====================
 
diff --git a/contrib/devtools/gen-manpages.sh b/contrib/devtools/gen-manpages.sh
new file mode 100755
index 0000000000..967717e1e0
--- /dev/null
+++ b/contrib/devtools/gen-manpages.sh
@@ -0,0 +1,29 @@
+#!/bin/sh
+
+TOPDIR=${TOPDIR:-$(git rev-parse --show-toplevel)}
+SRCDIR=${SRCDIR:-$TOPDIR/src}
+MANDIR=${MANDIR:-$TOPDIR/doc/man}
+
+BITCOIND=${BITCOIND:-$SRCDIR/bitcoind}
+BITCOINCLI=${BITCOINCLI:-$SRCDIR/bitcoin-cli}
+BITCOINTX=${BITCOINTX:-$SRCDIR/bitcoin-tx}
+BITCOINQT=${BITCOINQT:-$SRCDIR/qt/bitcoin-qt}
+
+[ ! -x $BITCOIND ] && echo "$BITCOIND not found or not executable." && exit 1
+
+# The autodetected version git tag can screw up manpage output a little bit
+BTCVER=($($BITCOINCLI --version | head -n1 | awk -F'[ -]' '{ print $6, $7 }'))
+
+# Create a footer file with copyright content.
+# This gets autodetected fine for bitcoind if --version-string is not set,
+# but has different outcomes for bitcoin-qt and bitcoin-cli.
+echo "[COPYRIGHT]" > footer.h2m
+$BITCOIND --version | sed -n '1!p' >> footer.h2m
+
+for cmd in $BITCOIND $BITCOINCLI $BITCOINTX $BITCOINQT; do
+  cmdname="${cmd##*/}"
+  help2man -N --version-string=${BTCVER[0]} --include=footer.h2m -o ${MANDIR}/${cmdname}.1 ${cmd}
+  sed -i "s/\\\-${BTCVER[1]}//g" ${MANDIR}/${cmdname}.1
+done
+
+rm -f footer.h2m