#!/usr/bin/env bash

# This script generates the version string used by Envbuilder, including for dev

# versions. Note: the version returned by this script will NOT include the "v"

# prefix that is included in the Git tag.

#

# If $ENVBUILDER_RELEASE is set to "true", the returned version will equal the

# current git tag. If the current commit is not tagged, this will fail.

#

# If $ENVBUILDER_RELEASE is not set, the returned version will always be a dev

# version.

set -euo pipefail

# shellcheck source=scripts/lib.sh

source "$(dirname "${BASH_SOURCE[0]}")/lib.sh"

cdroot

if [[ -n "${ENVBUILDER_FORCE_VERSION:-}" ]]; then

echo "${ENVBUILDER_FORCE_VERSION}"

exit 0

fi

# To make contributing easier, if there are no tags, we'll use a default

# version.

tag_list=$(git tag)

if [[ -z ${tag_list} ]]; then

log

log "INFO(version.sh): It appears you've checked out a fork or shallow clone of Envbuilder."

log "INFO(version.sh): By default GitHub does not include tags when forking."

log "INFO(version.sh): We will use the default version 0.0.1 for this build."

log "INFO(version.sh): To pull tags from upstream, use the following commands:"

log "INFO(version.sh): - git remote add upstream https://github.com/coder/envbuilder.git"

log "INFO(version.sh): - git fetch upstream"

log

last_tag="v0.0.1"

else

current_commit=$(git rev-parse HEAD)

# Try to find the last tag that contains the current commit

last_tag=$(git tag --contains "$current_commit" --sort=-version:refname | head -n 1)

# If there is no tag that contains the current commit,

# get the latest tag sorted by semver.

if [[ -z "${last_tag}" ]]; then

last_tag=$(git tag --sort=-version:refname | head -n 1)

fi

fi

version="${last_tag}"

# If the HEAD has extra commits since the last tag then we are in a dev version.

#

# Dev versions are denoted by the "-dev+" suffix with a trailing commit short

# SHA.

if [[ "${ENVBUILDER_RELEASE:-}" == *t* ]]; then

# $last_tag will equal `git describe --always` if we currently have the tag

# checked out.

if [[ "${last_tag}" != "$(git describe --always)" ]]; then

error "version.sh: the current commit is not tagged with an annotated tag"

fi

else

rev=$(git log -1 --format='%h' HEAD)

version+="+dev-${rev}"

# If the git repo has uncommitted changes, mark the version string as 'dirty'.

dirty_files=$(git ls-files --other --modified --exclude-standard)

if [[ -n "${dirty_files}" ]]; then

version+="-dirty"

fi

fi

# Remove the "v" prefix.

echo "${version#v}"