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dokku/plugins/git/functions
Jose Diaz-Gonzalez 3ca6245b00 fix: use 6 X to support running under busybox
mktemp from busybox requires that all templates end with XXXXXX.
2019-08-12 18:16:16 -04:00

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#!/usr/bin/env bash
source "$PLUGIN_CORE_AVAILABLE_PATH/common/functions"
source "$PLUGIN_CORE_AVAILABLE_PATH/common/property-functions"
source "$PLUGIN_AVAILABLE_PATH/apps/functions"
source "$PLUGIN_AVAILABLE_PATH/config/functions"
set -eo pipefail
[[ $DOKKU_TRACE ]] && set -x
use_git_worktree() {
declare desc="detects whether to use git worktree"
local GIT_VERSION MAJOR_VERSION MINOR_VERSION
GIT_VERSION=$(git --version | awk '{split($0,a," "); print a[3]}')
MAJOR_VERSION=$(echo "$GIT_VERSION" | awk '{split($0,a,"."); print a[1]}')
MINOR_VERSION=$(echo "$GIT_VERSION" | awk '{split($0,a,"."); print a[2]}')
if [[ "$MAJOR_VERSION" -ge "3" ]]; then
return 0
elif [[ "$MAJOR_VERSION" -eq "2" ]] && [[ "$MINOR_VERSION" -ge "11" ]]; then
return 0
else
return 1
fi
}
git_build_app_repo() {
declare desc="builds local git app repo for app"
declare APP="$1" REV="$2"
local DOKKU_GLOBAL_DISABLE_AUTOCREATE
verify_app_name "$APP"
# clean up after ourselves
local GIT_BUILD_APP_REPO_TMP_WORK_DIR=$(mktemp -d "/tmp/dokku-${DOKKU_PID}-${FUNCNAME[0]}.XXXXXX")
trap "rm -rf '$GIT_BUILD_APP_REPO_TMP_WORK_DIR' >/dev/null" RETURN INT TERM EXIT
local TMP_TAG="dokku/$REV"
chmod 755 "$GIT_BUILD_APP_REPO_TMP_WORK_DIR"
unset GIT_DIR GIT_WORK_TREE
! apps_exists "$APP" >/dev/null 2>&1 && apps_maybe_create "$APP"
if use_git_worktree; then
# git worktree - this method uses git worktree which was introduced in git 2.5
pushd "$DOKKU_ROOT/$APP" >/dev/null
# unset the git quarantine path to allow us to use 2.13.0+
# See this issue for more information: https://github.com/dokku/dokku/issues/2796
suppress_output env -u GIT_QUARANTINE_PATH git worktree add "$GIT_BUILD_APP_REPO_TMP_WORK_DIR" "$REV"
popd >/dev/null 2>&1 || pushd "/tmp" >/dev/null
pushd "$GIT_BUILD_APP_REPO_TMP_WORK_DIR" >/dev/null
else
# git clone - this method creates a new git repository and adds the primary
# repo as a remote, then does a fetch depth=1 to avoid cloning
# the entire repo.
# Not working for git >= 2.11.0 due to changes introduced
# in this merge:
# https://github.com/git/git/commit/25ab004c53cdcfea485e5bf437aeaa74df47196d
pushd "$GIT_BUILD_APP_REPO_TMP_WORK_DIR" >/dev/null
GIT_DIR="$DOKKU_ROOT/$APP" git tag -d "$TMP_TAG" &>/dev/null || true
GIT_DIR="$DOKKU_ROOT/$APP" git tag "$TMP_TAG" "$REV" &>/dev/null
git init &>/dev/null
git config advice.detachedHead false
git remote add origin "$DOKKU_ROOT/$APP" &>/dev/null
git fetch --depth=1 origin "refs/tags/$TMP_TAG" &>/dev/null
git reset --hard FETCH_HEAD &>/dev/null
GIT_DIR="$DOKKU_ROOT/$APP" git tag -d "$TMP_TAG" &>/dev/null || true
fi
suppress_output env -u GIT_QUARANTINE_PATH git submodule update --init --recursive
find . -name .git -prune -exec rm -rf {} \; >/dev/null
if use_git_worktree; then
pushd "$DOKKU_ROOT/$APP" >/dev/null
git worktree prune
popd >/dev/null
fi
local DOKKU_APP_DISABLE_ANSI_PREFIX_REMOVAL DOKKU_GLOBAL_DISABLE_ANSI_PREFIX_REMOVAL DOKKU_DISABLE_ANSI_PREFIX_REMOVAL
DOKKU_APP_DISABLE_ANSI_PREFIX_REMOVAL=$(config_get "$APP" DOKKU_DISABLE_ANSI_PREFIX_REMOVAL || true)
DOKKU_GLOBAL_DISABLE_ANSI_PREFIX_REMOVAL=$(config_get --global DOKKU_DISABLE_ANSI_PREFIX_REMOVAL || true)
DOKKU_DISABLE_ANSI_PREFIX_REMOVAL=${DOKKU_APP_DISABLE_ANSI_PREFIX_REMOVAL:="$DOKKU_GLOBAL_DISABLE_ANSI_PREFIX_REMOVAL"}
if [[ "$DOKKU_DISABLE_ANSI_PREFIX_REMOVAL" == "true" ]]; then
git_trigger_build "$APP" "$GIT_BUILD_APP_REPO_TMP_WORK_DIR" "$REV"
else
git_trigger_build "$APP" "$GIT_BUILD_APP_REPO_TMP_WORK_DIR" "$REV" | sed -u "s/^/"$'\e[1G'"/"
fi
}
git_trigger_build() {
declare desc="triggers the actual build process for a given app within a directory at a particular revision"
declare APP="$1" TMP_WORK_DIR="$2" REV="$3"
plugn trigger post-extract "$APP" "$TMP_WORK_DIR" "$REV"
if [[ -f Dockerfile ]] && [[ "$(
[[ -f .env ]] && grep -q BUILDPACK_URL .env
echo $?
)" != "0" ]] && [[ ! -f ".buildpacks" ]] && [[ -z $(config_get "$APP" BUILDPACK_URL || true) ]]; then
plugn trigger pre-receive-app "$APP" "dockerfile" "$TMP_WORK_DIR" "$REV"
dokku_receive "$APP" "dockerfile" "$TMP_WORK_DIR"
else
plugn trigger pre-receive-app "$APP" "herokuish" "$TMP_WORK_DIR" "$REV"
dokku_receive "$APP" "herokuish" "$TMP_WORK_DIR"
fi
}
git_deploy_branch() {
declare desc="retrieve the deploy branch for a given application"
local cmd="git-hook"
local APP="$1"
local DOKKU_DEPLOY_BRANCH="$(fn-plugin-property-get "git" "$APP" "deploy-branch" "")"
local DOKKU_GLOBAL_DEPLOY_BRANCH="$(fn-plugin-property-get "git" "--global" "deploy-branch" "")"
if [[ -n "$DOKKU_DEPLOY_BRANCH" ]]; then
echo "$DOKKU_DEPLOY_BRANCH"
elif [[ -n "$DOKKU_GLOBAL_DEPLOY_BRANCH" ]]; then
echo "$DOKKU_GLOBAL_DEPLOY_BRANCH"
else
echo "master"
fi
}
git_hook_cmd() {
declare desc="kick off receive-app trigger from git prereceive hook"
local cmd="git-hook"
local APP="$2"
local DOKKU_DEPLOY_BRANCH
is_valid_app_name "$APP"
DOKKU_DEPLOY_BRANCH="$(git_deploy_branch "$APP")"
if ! git check-ref-format --branch "$DOKKU_DEPLOY_BRANCH" >/dev/null 2>&1; then
echo $'\e[1G\e[K'"-----> WARNING: Invalid branch name '$DOKKU_DEPLOY_BRANCH' specified via DOKKU_DEPLOY_BRANCH."
echo $'\e[1G\e[K'"-----> For more details, please see the man page for 'git-check-ref-format.'"
return
fi
local oldrev newrev refname
while read -r oldrev newrev refname; do
# Only run this script for the master branch. You can remove this
# if block if you wish to run it for others as well.
if [[ $refname == "refs/heads/${DOKKU_DEPLOY_BRANCH}" ]]; then
# broken out into plugin so we might support other methods to receive an app
# shellcheck disable=SC2086
git_receive_app "$APP" "$newrev"
else
if [[ $(find "$PLUGIN_PATH"/enabled/*/receive-branch 2>/dev/null | wc -l) != 1 ]]; then
# shellcheck disable=SC2086
plugn trigger receive-branch $APP $newrev $refname
else
echo $'\e[1G\e[K'"-----> WARNING: deploy did not complete, you must push to ${DOKKU_DEPLOY_BRANCH}."
echo $'\e[1G\e[K'"-----> for example, try 'git push <dokku> ${refname/refs\/heads\//}:${DOKKU_DEPLOY_BRANCH}'"
fi
fi
done
}
git_build() {
declare desc="setup and call git_build_app_repo"
local APP="$1" REV="$2"
local DOKKU_DEPLOY_BRANCH ENV_VAR_NAME REF
if [[ $# -ge 2 ]]; then
ENV_VAR_NAME="$(fn-plugin-property-get "git" "$APP" "rev-env-var")"
if [[ -z "$ENV_VAR_NAME" ]] && ! fn-plugin-property-exists "git" "$APP" "rev-env-var"; then
ENV_VAR_NAME="GIT_REV"
fi
if [[ -n "$ENV_VAR_NAME" ]]; then
DOKKU_QUIET_OUTPUT=1 config_set --no-restart "$APP" "${ENV_VAR_NAME}=${REV}"
fi
local REF="$REV"
else
DOKKU_DEPLOY_BRANCH="$(git_deploy_branch "$APP")"
REF=$(<"$DOKKU_ROOT/$APP/refs/heads/$DOKKU_DEPLOY_BRANCH")
fi
# shellcheck disable=SC2086
git_build_app_repo $APP $REF
}
git_receive_app() {
declare desc="git receive-app plugin trigger"
declare APP="$1" REV="$2"
# Don't trigger git build if there is no git repository.
if [[ ! -d "$DOKKU_ROOT/$APP/refs" ]]; then
true
else
acquire_app_deploy_lock "$APP" "exclusive"
# shellcheck disable=SC2086
git_build $APP $REV
release_app_deploy_lock "$APP"
fi
}
git_upload_pack_cmd() {
declare desc="executes git-upload-pack"
declare cmd="git-upload-pack"
declare APP="$2"
APP="$(echo "$APP" | perl -pe 's/(?<!\\)'\''//g' | sed 's/\\'\''/'\''/g' | sed 's/^\///g')"
is_valid_app_name "$APP"
! apps_exists "$APP" >/dev/null 2>&1 && apps_maybe_create "$APP"
plugn trigger git-pre-pull "$APP"
cat | git-upload-pack "$DOKKU_ROOT/$APP"
plugn trigger git-post-pull "$APP"
}
git_glob_cmd() {
declare desc="catch-all for any other git-* commands"
local cmd="git-*"
local APP="$(echo "$2" | perl -pe 's/(?<!\\)'\''//g' | sed 's/\\'\''/'\''/g' | sed 's/^\///g')"
local APP_PATH=$DOKKU_ROOT/$APP
is_valid_app_name "$APP"
if [[ $1 == "git-receive-pack" && ! -d "$APP_PATH/refs" ]]; then
! apps_exists "$APP" >/dev/null 2>&1 && apps_maybe_create "$APP"
fn-git-create-hook "$APP"
fi
if [[ $1 == "git-receive-pack" ]]; then
local args="$1 '$APP_PATH'"
else
local args=$*
fi
git-shell -c "$args"
}
fn-git-create-hook() {
declare APP="$1"
local APP_PATH="$DOKKU_ROOT/$APP"
local PRERECEIVE_HOOK="$APP_PATH/hooks/pre-receive"
verify_app_name "$APP"
if [[ ! -d "$APP_PATH/refs" ]]; then
git init --bare "$APP_PATH" >/dev/null
fi
cat >"$PRERECEIVE_HOOK" <<EOF
#!/usr/bin/env bash
set -e; set -o pipefail;
cat | DOKKU_ROOT="$DOKKU_ROOT" dokku git-hook $APP
EOF
chmod +x "$PRERECEIVE_HOOK"
}