for tool in $@

do

which "$tool" >/dev/null ||

die "The '$tool' utility is required but not found"

done

file=$1

msg=$2

test "$msg" || msg="Travis: update $file"

if [ -e "$file" ]

then

if diff -q "$file" "$tmpFile" >/dev/null

then

info "$file is already OK"

else

info "Updating $file"

$EXEC rm -rf "$file"

$EXEC mv -f "$tmpFile" "$file"

fi

else

info "Creating $file"

$EXEC mkdir -p "$(dirname "$file")"

$EXEC mv "$tmpFile" "$file"

fi

rm -rf "$tmpFile"

$EXEC git add "$file"

$EXEC git diff-index --quiet HEAD -- || $EXEC git commit -m "$msg"

cd "$1"

# -- Git sanity checks --

repoSlug=$(git remote -v | grep origin | head -n1 | sed 's/.*github.com.\([^ ]*\) .*/\1/' | sed 's/\.git$//')

test "$repoSlug" && info "Repository = $repoSlug" || die 'Could not determine GitHub repository slug'

git fetch >/dev/null

git diff-index --quiet HEAD -- || die "Dirty working copy"

branch=$(git rev-parse --abbrev-ref HEAD)

test "$branch" = "master" || die "Non-master branch: $branch"

git merge --ff --ff-only 'HEAD@{u}' >/dev/null ||

die "Cannot fast forward (local diverging?)"

# -- POM sanity checks --

parent=$(xmllint --xpath "//*[local-name()='project']/*[local-name()='parent']/*[local-name()='artifactId']" pom.xml|sed 's/[^>]*>//'|sed 's/<.*//')

test "$parent" = "pom-scijava" ||

die "Not pom-scijava parent: $parent"

# -- Travis sanity checks --

test -e "$travisDir" -a ! -d "$travisDir" && die "$travisDir is not a directory"

test -e "$travisConfig" -a ! -f "$travisConfig" && die "$travisConfig is not a regular file"

test -e "$travisConfig" && warn "$travisConfig already exists"

test -e "$travisBuildScript" && warn "$travisBuildScript already exists"

# -- Do things --

# Add/update the Travis configuration file.

cat >"$tmpFile" <<EOL

update "$travisConfig"

# Add/update the Travis build script.

cat >"$tmpFile" <<EOL

chmod +x "$tmpFile"

update "$travisBuildScript"

# Remove obsolete Travis-related files.

test -f "$travisSettingsFile" && info "Removing obsolete $travisSettingsFile (travis-build.sh generates it now)"

test -f "$travisNotifyScript" && info "Removing obsolete $travisNotifyScript (ImageJ Jenkins is going away)"

$EXEC git rm -f "$travisSettingsFile" "$travisNotifyScript"

$EXEC git diff-index --quiet HEAD -- || $EXEC git ci -m "Travis: remove obsolete files"

# Upgrade version of pom-scijava.

version=$(xmllint --xpath "//*[local-name()='project']/*[local-name()='parent']/*[local-name()='version']" pom.xml|sed 's/[^>]*>//'|sed 's/<.*//')

# HACK: Using a lexicographic comparison here is imperfect.

if [ "$version" \< "$pomMinVersion" ]

then

info 'Upgrading pom-scijava version'

sed "s|^ <version>$version</version>$| <version>$pomMinVersion</version>|" pom.xml >"$tmpFile"

update pom.xml "POM: update pom-scijava parent to $pomMinVersion"

else

info "Version of pom-scijava ($version) is OK"

fi

releaseProfile=$(grep '<releaseProfiles>' pom.xml 2>/dev/null | sed 's/[^>]*>//' | sed 's/<.*//')

if [ "$releaseProfile" ]

then

if [ "$releaseProfile" != 'deploy-to-imagej' ]

then

warn "Unknown release profile: $releaseProfile"

fi

else

info 'Adding <releaseProfiles> property'

cp pom.xml "$tmpFile"

perl -0777 -i -pe 's/(\n\t<\/properties>\n)/\n\n\t\t<!-- NB: Deploy releases to the ImageJ Maven repository. -->\n\t\t<releaseProfiles>deploy-to-imagej<\/releaseProfiles>\1/igs' "$tmpFile"

update pom.xml 'POM: deploy releases to the ImageJ repository'

fi

# update the README

if ! grep -q "travis-ci.org/$repoSlug" README.md >/dev/null 2>&1

then

info "Adding Travis badge to README.md"

echo "[](https://travis-ci.org/$repoSlug)" >"$tmpFile"

echo >>"$tmpFile"

test -f README.md && cat README.md >>"$tmpFile"

update README.md 'Travis: add badge to README.md'

fi

# encrypt key/value pairs in variables file

if [ -f "$varsFile" ]

then

while read p; do

# Skip comments. (Cannot use ${p:0:1} because it's bash-specific.)

case "$p" in

'#'*) continue;;

esac

info "Encrypting ${p%%=*}"

echo yes | $EXEC travis encrypt "$p" --add env.global

done <"$varsFile"

$EXEC git commit "$travisConfig" -m "Travis: add encrypted environment variables"

else

warn "No $varsFile found. Travis will not have any environment variables set!"

fi

# encrypt GPG keypair

if [ -f "$signingKeySourceFile" ]

then

info "Encrypting $signingKeyDestFile"

# NB: We have to copy the file first, so that --add does the right thing.

$EXEC cp "$signingKeySourceFile" "$signingKeyDestFile"

$EXEC travis encrypt-file "$signingKeyDestFile" "$signingKeyDestFile.enc" --add

$EXEC rm -f "$signingKeyDestFile"

$EXEC git add "$travisConfig" "$signingKeyDestFile.enc"

$EXEC git commit -m "Travis: add encrypted GPG signing keypair"

else

warn "No $signingKeySourceFile found. Travis will not be able to do GPG signing!"

fi