contrib/devtools/commit-script-check.sh

   1 #!/bin/sh
   2 # Copyright (c) 2017 The Bitcoin Core developers
   3 # Distributed under the MIT software license, see the accompanying
   4 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
   5
   6 # This simple script checks for commits beginning with: scripted-diff:
   7 # If found, looks for a script between the lines -BEGIN VERIFY SCRIPT- and
   8 # -END VERIFY SCRIPT-. If no ending is found, it reads until the end of the
   9 # commit message.
  10
  11 # The resulting script should exactly transform the previous commit into the current
  12 # one. Any remaining diff signals an error.
  13
  14 if test "x$1" = "x"; then
  15     echo "Usage: $0 <commit>..."
  16     exit 1
  17 fi
  18
  19 RET=0
  20 PREV_BRANCH=`git name-rev --name-only HEAD`
  21 PREV_HEAD=`git rev-parse HEAD`
  22 for i in `git rev-list --reverse $1`; do
  23     if git rev-list -n 1 --pretty="%s" $i | grep -q "^scripted-diff:"; then
  24         git checkout --quiet $i^ || exit
  25         SCRIPT="`git rev-list --format=%b -n1 $i | sed '/^-BEGIN VERIFY SCRIPT-$/,/^-END VERIFY SCRIPT-$/{//!b};d'`"
  26         if test "x$SCRIPT" = "x"; then
  27             echo "Error: missing script for: $i"
  28             echo "Failed"
  29             RET=1
  30         else
  31             echo "Running script for: $i"
  32             echo "$SCRIPT"
  33             eval "$SCRIPT"
  34             git --no-pager diff --exit-code $i && echo "OK" || (echo "Failed"; false) || RET=1
  35         fi
  36         git reset --quiet --hard HEAD
  37      else
  38         if git rev-list "--format=%b" -n1 $i | grep -q '^-\(BEGIN\|END\)[ a-zA-Z]*-$'; then
  39             echo "Error: script block marker but no scripted-diff in title"
  40             echo "Failed"
  41             RET=1
  42         fi
  43     fi
  44 done
  45 git checkout --quiet $PREV_BRANCH 2>/dev/null || git checkout --quiet $PREV_HEAD
  46 exit $RET