feat(package): add support for package version from lerna.json instea…

…d of package.json

docs/Options.md

@@ -231,6 +231,7 @@ Mercurial status indicators is shown only when you have dirty repository.
 Package version is shown when repository is a package.
 
 * **npm** — `npm` package contains a `package.json` file. We use `jq`, `python` to parse package version for improving performance and `node` as a fallback. Install [jq](https://stedolan.github.io/jq/) for **improved performance** of this section ([Why?](./Troubleshooting.md#why-is-my-prompt-slow))
+* **lerna** — `lerna` monorepo contains a `lerna.json` file. We use `jq`, `python` to parse package version for improving performance and `node` as a fallback. Install [jq](https://stedolan.github.io/jq/) for **improved performance** of this section (same reason as npm).
 * **cargo** — `cargo` package contains a `Cargo.toml` file. Currently, we use `cargo pkgid`, it depends on `Cargo.lock`. So if package version isn't shown, you may need to run some command like `cargo build` which can generate `Cargo.lock` file.
 
 > **Note:** This is the version of the package you are working on, not the version of package manager itself.

sections/package.zsh

@@ -36,6 +36,27 @@ spaceship_package() {
  fi
  fi
 
+ # Show package version from lerna.json if is a lerna monorepo
+ # Note: lerna does not have to be installed in the global context
+ # so checking for lerna binary does not make sense
+ if [[ -f lerna.json ]] && spaceship::exists npm; then
+ local 'lerna_package_version'
+ if spaceship::exists jq; then
+ lerna_package_version=$(jq -r '.version' lerna.json 2>/dev/null)
+ elif spaceship::exists python; then
+ lerna_package_version=$(python -c "import json; print(json.load(open('lerna.json'))['version'])" 2>/dev/null)
+ elif spaceship::exists node; then
+ lerna_package_version=$(node -p "require('./lerna.json').version" 2> /dev/null)
+ fi
+ if [[ ! -z "$lerna_package_version" || "$package_version" != "null" || "$package_version" != "undefined" ]]; then
+ if [[ "$lerna_package_version" == "independent" ]]; then
+ package_version="($lerna_package_version)"
+ else
+ package_version="${lerna_package_version}"
+ fi
+ fi
+ fi
+
  if [[ -f Cargo.toml ]] && spaceship::exists cargo; then
  # Handle missing field `version` in Cargo.toml.
  # `cargo pkgid` need Cargo.lock exists too. If it does't, do not show package version