actions/github-action-push-to-another-repository
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Add support for SSH_DEPLOY_KEY variable (instead of only the personal access token)

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This commit is contained in:
Carles Pina i Estany 2022-06-09 00:09:10 +02:00
parent f973f49c62
commit 1ff90e4a65
2 changed files with 31 additions and 6 deletions
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2
Dockerfile
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@ -1,6 +1,6 @@
FROM alpine:latest
RUN apk add --no-cache git
RUN apk add --no-cache git openssh-client
COPY entrypoint.sh /entrypoint.sh

35
entrypoint.sh
View File

@ -26,6 +26,31 @@ then
USER_NAME="$DESTINATION_GITHUB_USERNAME"
fi
# Verify that there (potentially) some access to the destination repository
# and set up git (with GIT_CMD variable) and GIT_CMD_REPOSITORY
if [ -n "${SSH_DEPLOY_KEY:=}" ]
then
# Inspired by https://github.com/leigholiver/commit-with-deploy-key/blob/main/entrypoint.sh , thanks!
mkdir --parents "$HOME/.ssh"
DEPLOY_KEY_FILE="$HOME/.ssh/deploy_key"
echo "${SSH_DEPLOY_KEY}" > "$DEPLOY_KEY_FILE"
chmod 600 "$DEPLOY_KEY_FILE"
SSH_KNOWN_HOSTS_FILE="$HOME/.ssh/known_hosts"
ssh-keyscan -H github.com > "$SSH_KNOWN_HOSTS_FILE"
export GIT_SSH_COMMAND="ssh -i "$DEPLOY_KEY_FILE" -o UserKnownHostsFile=$SSH_KNOWN_HOSTS_FILE"
GIT_CMD_REPOSITORY="git@$GITHUB_SERVER:$DESTINATION_REPOSITORY_USERNAME/$DESTINATION_REPOSITORY_NAME.git"
elif [ -n "${API_TOKEN_GITHUB:=}" ]
GIT_CMD_REPOSITORY="https://$DESTINATION_REPOSITORY_USERNAME:the_api_token@$GITHUB_SERVER/$DESTINATION_REPOSITORY_USERNAME/$DESTINATION_REPOSITORY_NAME.git"
then
echo "::error::API_TOKEN_GITHUB and SSH_DEPLOY_KEY are empty. Please fill one (recommended the SSH_DEPLOY_KEY"
exit 1
fi
CLONE_DIR=$(mktemp -d)
echo "[+] Git version"
@ -37,12 +62,12 @@ git config --global user.email "$USER_EMAIL"
git config --global user.name "$USER_NAME"
{
git clone --single-branch --branch "$TARGET_BRANCH" "https://$DESTINATION_REPOSITORY_USERNAME:$API_TOKEN_GITHUB@$GITHUB_SERVER/$DESTINATION_REPOSITORY_USERNAME/$DESTINATION_REPOSITORY_NAME.git" "$CLONE_DIR"
git clone --single-branch --branch "$TARGET_BRANCH" "$GIT_CMD_REPOSITORY" "$CLONE_DIR"
} || {
echo "::error::Could not clone the destination repository. Command:"
echo "::error::git clone --single-branch --branch $TARGET_BRANCH https://$DESTINATION_REPOSITORY_USERNAME:the_api_token@$GITHUB_SERVER/$DESTINATION_REPOSITORY_USERNAME/$DESTINATION_REPOSITORY_NAME.git $CLONE_DIR"
echo "::error::(Note that USER_NAME and API_TOKEN is redacted by GitHub)"
echo "::error::Please verify that the target repository exist AND that it contains the destination branch name, and is accesible by the API_TOKEN_GITHUB"
echo "::error::git clone --single-branch --branch $TARGET_BRANCH $GIT_CMD_REPOSITORY $CLONE_DIR"
echo "::error::(Note that if they exist USER_NAME and API_TOKEN is redacted by GitHub)"
echo "::error::Please verify that the target repository exist AND that it contains the destination branch name, and is accesible by the API_TOKEN_GITHUB OR SSH_DEPLOY_KEY"
exit 1
}
@ -117,4 +142,4 @@ git diff-index --quiet HEAD || git commit --message "$COMMIT_MESSAGE"
echo "[+] Pushing git commit"
# --set-upstream: sets de branch when pushing to a branch that does not exist
git push "https://$USER_NAME:$API_TOKEN_GITHUB@$GITHUB_SERVER/$DESTINATION_REPOSITORY_USERNAME/$DESTINATION_REPOSITORY_NAME.git" --set-upstream "$TARGET_BRANCH"
git push "$GIT_CMD_REPOSITORY" --set-upstream "$TARGET_BRANCH"