some updates to the release scripts

tools/release_helper.sh

@@ -1,108 +1,135 b''
 # Simple tool to help for release
 # when releasing with bash, simplei source it to get asked questions. 
 
 # misc check before starting
 
 python -c 'import keyring'
 python -c 'import twine'
 python -c 'import sphinx'
 python -c 'import sphinx_rtd_theme'
 python -c 'import nose'
 
-echo -n 'PREV_RELEASE (X.y.z):'
-read PREV_RELEASE
-echo -n 'MILESTONE (X.y):'
-read MILESTONE
-echo -n 'VERSION (X.y.z):'
-read VERSION
-echo -n 'branch (master|X.y):'
-read branch
 
 BLACK=$(tput setaf 1)
 RED=$(tput setaf 1)
 GREEN=$(tput setaf 2)
 YELLOW=$(tput setaf 3)
 BLUE=$(tput setaf 4)
 MAGENTA=$(tput setaf 5)
 CYAN=$(tput setaf 6)
 WHITE=$(tput setaf 7)
 NOR=$(tput sgr0)
 
+
+echo -n "PREV_RELEASE (X.y.z) [$PREV_RELEASE]: "
+read input
+PREV_RELEASE=${input:-$PREV_RELEASE}
+echo -n "MILESTONE (X.y) [$MILESTONE]: "
+read input
+MILESTONE=${input:-$MILESTONE}
+echo -n "VERSION (X.y.z) [$VERSION]:"
+read input
+VERSION=${input:-$VERSION}
+echo -n "branch (master|X.y) [$branch]:"
+read input
+branch=${input:-$branch}
+
+ask_section(){
+    echo
+    echo $BLUE"$1"$NOR 
+    echo -n $GREEN"Press Enter to continue, S to skip: "$GREEN
+    read -n1 value
+    echo 
+    if [ -z $value ] || [ $value = 'y' ]  ; then
+        return 0
+    fi
+    return 1
+}
+
+
+
 echo 
-echo $BLUE"Updating what's new with informations from docs/source/whatsnew/pr"$NOR
+if ask_section "Updating what's new with informations from docs/source/whatsnew/pr"
+then
 python tools/update_whatsnew.py
 
 echo
 echo $BLUE"please move the contents of "docs/source/whatsnew/development.rst" to version-X.rst"$NOR
 echo $GREEN"Press enter to continue"$NOR
 read
+fi
+
+if ask_section "Gen Stats, and authors"
+then
 
 echo 
 echo $BLUE"here are all the authors that contributed to this release:"$NOR
 git log --format="%aN <%aE>" $PREV_RELEASE... | sort -u -f
 
 echo 
 echo $BLUE"If you see any duplicates cancel (Ctrl-C), then edit .mailmap.\n"$GREEN"Press enter to continue:"$NOR
 read
 
 echo $BLUE"generating stats"$NOR
 python tools/github_stats.py --milestone $MILESTONE > stats.rst
 
 echo $BLUE"stats.rst files generated."$NOR
 echo $GREEN"Please merge it with the right file (github-stats-X.rst) and commit."$NOR
 echo $GREEN"press enter to continue."$NOR
 read
 
+fi
+
 echo "Cleaning repository"
 git clean -xfdi
 
 echo $GREEN"please update version number in ${RED}IPython/core/release.py${NOR} , Do not commit yet – we'll do it later."$NOR
 
 echo $GREEN"Press enter to continue"$NOR
 read
 
 echo 
 echo "Attempting to build the docs.."
 make html -C docs
 
 echo 
 echo $GREEN"Check the docs, press enter to continue"$NOR
 read
 
 echo
 echo $BLUE"Attempting to build package..."$NOR
 
 tools/build_release
 
 echo
 echo "Let's commit : git commit -am \"release $VERSION\" -S"
 echo $GREEN"Press enter to commit"$NOR
 read
 git commit -am "release $VERSION" -S
 
 echo
 echo $BLUE"git push origin \$BRANCH ($BRANCH)?"$NOR
 echo $GREEN"Make sure you can push"$NOR
 echo $GREEN"Press enter to continue"$NOR
 read
 git push origin $BRANCH
 
 echo
 echo "Let's tag : git tag -am \"release $VERSION\" \"$VERSION\" -s"
 echo $GREEN"Press enter to wtagcommit"$NOR
 read
 git tag -am "release $VERSION" "$VERSION" -s
 
 echo
 echo $BLUE"And push the tag: git push origin \$VERSION ?"$NOR
 echo $GREEN"Press enter to continue"$NOR
 read
 git push origin $VERSION
 
 echo
 echo $BLUE"let's : git checkout $VERSION"$NOR
 echo $GREEN"Press enter to continue"$NOR
 read
 git checkout $VERSION