update languages

.github/prehooks/pre-commit

@@ -0,0 +1,71 @@
+#!/bin/sh
+
+echo "Running pre-commit hook..."
+
+# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+echo ">>  Updating R documentation..."
+if command -v Rscript > /dev/null; then
+  if [ "$(Rscript -e 'cat(all(c('"'roxygen2'"', '"'pkgload'"') %in% rownames(installed.packages())))')" == "TRUE" ]; then
+    Rscript -e "suppressMessages(roxygen2::roxygenise())"
+    currentpkg=`Rscript -e "cat(pkgload::pkg_name())"`
+    git add man/*
+    echo ">>  done."
+  else
+    echo ">>  R packages 'roxygen2' and 'pkgload' are not installed!"
+    currentpkg="your"
+  fi
+else
+  echo ">>  R is not available on your system!"
+  currentpkg="your"
+fi
+echo ">>  "
+
+
+# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+echo ">>  Updating semantic versioning and date..."
+
+# get tags from remote, and remove tags not on remote:
+git fetch origin --prune --prune-tags --quiet
+currenttagfull=`git describe --tags --abbrev=0`
+currenttag=`git describe --tags --abbrev=0 | sed 's/v//'`
+if [ "$currenttag" = "" ]; then
+  # there is no tag, so set tag to 0.0.1 and commit index to current count
+  echo ">>  - no git tags found, create some using v(x).(y).(z)"
+  currenttag="0.0.1"
+  currentcommit=`git rev-list --count HEAD`
+else
+  # there is a tag, so base version number on that
+  currentcommit=`git rev-list --count ${currenttagfull}..HEAD`
+  if (( "$currentcommit" == 0 )); then
+    # tag is new, so this must become the version number
+    currentversion="$currenttag"
+  fi
+  echo ">>  - latest tag is '${currenttagfull}', with ${currentcommit} previous commits"
+fi
+if [ "$currentversion" = "" ]; then
+  # combine tag (e.g. 1.2.3) and commit number (like 5) increased by 9000 to indicate beta version
+  currentversion="$currenttag.$((currentcommit + 9001))" # results in e.g. 1.2.3.9005
+fi
+echo ">>  - ${currentpkg} pkg version set to ${currentversion}"
+
+# set version number and date to DESCRIPTION file
+sed -i -- "s/^Version: .*/Version: ${currentversion}/" DESCRIPTION
+sed -i -- "s/^Date: .*/Date: $(date '+%Y-%m-%d')/" DESCRIPTION
+echo ">>  - updated DESCRIPTION"
+# remove leftover on macOS
+rm DESCRIPTION--
+# add to commit
+git add DESCRIPTION
+
+# set version number to NEWS file
+if [ -e "NEWS.md" ]; then
+  sed -i -- "1s/.*/# ${currentpkg} ${currentversion}/" NEWS.md
+  echo ">>  - updated NEWS.md"
+  # remove leftover on macOS
+  rm NEWS.md--
+  # add to commit
+  git add NEWS.md
+else
+  echo ">>  - no NEWS.md found!"
+fi
+echo ">>  "