Dependency Management

LuCLI can manage CFML libraries and Lucee extensions as dependencies for your project, using the dependencies, devDependencies, and dependencySettings sections in lucee.json. Installed dependencies are recorded in lucee-lock.json, which is also used during server startup.

This page focuses on how dependencies and extensions work, independent of the rest of the lucee.json configuration.

Git dependency caching

LuCLI can manage CFML dependencies and Lucee extensions via the dependencies, devDependencies, and dependencySettings sections in lucee.json. Installed dependencies are recorded in lucee-lock.json, which is also used by server locking.

Git dependency caching

Git-based dependencies (source: "git") are installed by cloning their repositories and copying the requested ref (and optional subPath) into the project installPath. To speed up repeated installs, LuCLI maintains a shared git cache under:

• ~/.lucli/deps/git-cache (or ${LUCLI_HOME}/deps/git-cache when LUCLI_HOME / -Dlucli.home is set)

Behavior:

• The first time a given git dependency is installed, LuCLI clones the repository into the cache directory.
• Subsequent installs of the same dependency reuse the cached clone, running git fetch --tags to pull the latest refs before checking out the requested ref.
• Each cached repository is keyed by name + URL hash, so different dependencies that share the same name but use different URLs will not collide.
• If the cached clone becomes invalid (broken .git dir, fetch failure, etc.), LuCLI automatically deletes that cache entry and re-clones it once.

You can control this behavior via a user-level setting in ~/.lucli/settings.json:

• usePersistentGitCache (boolean, default: true)
  • When true, LuCLI uses the shared cache under ~/.lucli/deps/git-cache.
  • When false, LuCLI uses a throwaway clone per install and deletes it afterwards (slower, but leaves no cached git repositories on disk).

To manually clear the git cache, use:

lucli deps prune

This removes all cached git clones under ~/.lucli/deps/git-cache.

At a high level:

• dependencies – production dependencies (CFML libraries, Lucee extensions, etc.).
• devDependencies – development-only dependencies.
• dependencySettings – controls how and where dependencies are installed.
• lucee-lock.json – records the resolved versions, install paths, and mappings.
• LUCEE_EXTENSIONS – built automatically from locked extension dependencies when the server starts.

Declaring Lucee extensions as dependencies

You can declare Lucee extensions in lucee.json using type: "extension". LuCLI supports several ways to identify the extension:

{
  "dependencies": {
    "h2": {
      "type": "extension",
      "id": "465E1E35-2425-4F4E-8B3FAB638BD7280A"
    },
    "redis": {
      "type": "extension",
      "slug": "redis"  
    },
    "my-local-ext": {
      "type": "extension",
      "path": "./extensions/my-local-ext.lex"
    },
    "custom-provider-ext": {
      "type": "extension",
      "url": "https://extensions.example.com/my-ext.lex"
    }
  }
}

Supported forms:

• By ID: id is a Lucee extension UUID.
• By slug/name: slug or name is resolved via lucee-extensions.json (see src/main/resources/extensions/EXTENSION_REGISTRY.md).
• By local path: path points to a .lex file on disk.
• By URL: url points to a .lex download URL.

Installing dependencies (including extensions)

Use the dependency installer command from the project root:

# Install all dependencies and devDependencies
lucli deps install

# Production-only install (skip devDependencies)
lucli deps install --production

# Apply environment-specific dependencySettings & overrides
lucli deps install --env prod

# Preview what would be installed and the realized dependency config for the root project
lucli deps install --dry-run

# Preview dependencies for the root project AND any nested projects that contain a lucee.json
lucli deps install --dry-run --include-nested-deps

Behaviour:

• Reads dependencies, devDependencies, and dependencySettings from lucee.json.
• Applies environment overrides (when --env is used) before resolving dependencies.
• Installs supported dependency types:
  • source: "git" – CFML libraries installed from Git repositories.
  • type: "extension" – Lucee extensions installed via providers, URLs, or local .lex files.
• Writes a normalized record for each dependency into lucee-lock.json (including version, source, install path, and, for extensions, their Lucee ID).
• Prints the LUCEE_EXTENSIONS value that will be set when the server starts, built from all locked extension dependencies.

Nested dependency projects

When a dependency's install directory contains its own lucee.json, LuCLI treats it as a nested project and can install its dependencies as well.

• lucli deps install always works from the current directory as the root project.
• For each installed (or reused) dependency with a directory install path:
  • If <installPath>/lucee.json exists, that directory is treated as a nested LuCLI project.
  • LuCLI runs the same resolution/install logic in that directory, writing a separate lucee-lock.json alongside the nested lucee.json.
• Nested installs are recursive but depth-limited to avoid cycles and infinite graphs.
• Each nested project manages its own lucee-lock.json; the root project's lock file is not flattened.
• Server startup still uses only the root project's lucee-lock.json to compute LUCEE_EXTENSIONS.

Dry-run semantics for nested projects:

• lucli deps install --dry-run
  • Shows only the root project's dependencies and realized lucee.json configuration.
  • Does not list nested projects, to keep the output compact by default.
• lucli deps install --dry-run --include-nested-deps
  • Shows the root project first.
  • Then prints an additional "[Nested: <relative/path>] Would install:" section for each nested project discovered from the current dependency graph, up to the depth limit.
  • Still avoids any file system changes (no clones, no lock writes).

Environment handling for nested projects:

• The root project uses strict environment application: --env foo will fail if foo is not defined under environments in the root lucee.json.
• Nested projects apply the same --env leniently:
  • If the nested lucee.json does not define that environment, LuCLI logs a warning and continues with the base configuration for that project instead of failing the whole run.

How extensions are activated at server startup

When you start a server, LuCLI:

1. Reads lucee-lock.json for the project.
2. Collects all locked dependencies with type: "extension".
3. Builds a comma-separated LUCEE_EXTENSIONS string from those locked entries.
4. Injects LUCEE_EXTENSIONS into the server process environment (along with any other envVars).
5. Lucee reads LUCEE_EXTENSIONS at startup and installs/activates the listed extensions.

This means:

• The set of active extensions is driven by lucee-lock.json, not by lucee.json alone.
• Running lucli deps install is the canonical way to update which extensions are installed and locked for a project.
• Server lock (lucee-lock.json → serverLocks) coexists with dependency locking; updating dependencies and updating server locks are separate, explicit steps.

For more about dependency structure, see LuceeJsonConfig and DependencySettingsConfig in the codebase, and for lock format see LuceeLockFile.

Settings reference

This section expands on the basic configuration reference and documents every available setting.

Top-level settings

Key	Type	Default	Description
name	string	project folder name	Human-friendly server name. Used as the directory name under ~/.lucli/servers/ and in CLI output.
version	string	6.2.2.91	Lucee Express version to download and use for this server.
port	integer	8080 (auto-adjusted to avoid conflicts)	Primary HTTP port for Tomcat.
shutdownPort	integer	port + 1000	Tomcat shutdown port. When omitted, LuCLI derives this from port.
webroot	string	"./"	Webroot/docBase for the Tomcat context. May be relative to the project directory or absolute.
host	string	localhost	Hostname used when constructing default URLs and (when HTTPS is enabled) generating a self-signed cert SAN.
openBrowser	boolean	true	When true, LuCLI tries to open a browser after the server starts.
openBrowserURL	string	(computed)	Optional custom URL to open instead of the default computed URL. Empty string means "use the default".
enableLucee	boolean	true	When false, Lucee servlets and CFML mappings are removed from web.xml and Tomcat acts as a static HTTP file server (HTML/HTM, assets, etc.).
enableRest	boolean	false	When true, Rest servlets are enabled. Requires enableLucee to be true.
configurationFile	string	not set	Path to an external CFConfig JSON file (base config). Relative paths are resolved against the project directory. This is loaded first as the foundation for Lucee CFConfig.
configuration	object	null	Inline Lucee CFConfig JSON that overrides/extends values from configurationFile. The final merged config is written to lucee-server/context/.CFConfig.json on server start.
envFile	string	.env	Optional path to a project-specific env file used for ${VAR} substitution in lucee.json. Relative paths are resolved against the project directory.
envVars	object	{}	Additional environment variables to inject into the Tomcat process. Values support ${VAR} / ${VAR:-default} and are resolved from envFile + system environment.
monitoring	object	see below	JMX/monitoring configuration.
jvm	object	see below	JVM memory and extra arguments.
urlRewrite	object	see below	URL rewriting / router configuration.
admin	object	see below	Lucee administrator exposure.
	https	object	disabled
	agents	object	{}
	environments	object	{}

monitoring settings

"monitoring": {
  "enabled": true,
  "jmx": {
    "port": 8999
  }
}

Key	Type	Default	Description
monitoring.enabled	boolean	true	Enables JMX monitoring for this server. When false, no JMX system properties are added to the JVM.
monitoring.jmx.port	integer	8999	JMX port used by the monitoring dashboard and external tools. Must not conflict with port or shutdownPort.

jvm settings

"jvm": {
  "maxMemory": "512m",
  "minMemory": "128m",
  "additionalArgs": []
}

Key	Type	Default	Description
jvm.maxMemory	string	"512m"	Maximum heap size, passed as -Xmx (e.g. "1024m", "2g").
jvm.minMemory	string	"128m"	Initial heap size, passed as -Xms.
jvm.additionalArgs	string[]	[]	Extra JVM arguments appended to CATALINA_OPTS (e.g. GC tuning flags, -D system properties, or -javaagent: if you do not use agents).

urlRewrite settings

"urlRewrite": {
  "enabled": true,
  "routerFile": "index.cfm"
}

Key	Type	Default	Description
urlRewrite.enabled	boolean	true	Enables framework-style URL rewriting using urlrewrite.xml. When false, no UrlRewrite filter or configuration is installed.
urlRewrite.routerFile	string	"index.cfm"	Central router script used by the URL rewrite rules for extensionless URLs. In static-only sites you may want to set this to "index.html".

admin settings

"admin": {
  "enabled": true
}

Key	Type	Default	Description
admin.enabled	boolean	true	When true, Lucee administrator URLs are mapped under /lucee/ in web.xml. When false, those mappings are removed.

agents settings

Agents let you define reusable sets of JVM arguments (typically -javaagent:... and related flags) under a stable identifier that can be toggled at lucli server start time.

"agents": {
  "luceedebug": {
    "enabled": false,
    "jvmArgs": [
      "-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=localhost:9999"
    ],
    "description": "Lucee step debugger agent"
  }
}

Key	Type	Default	Description
agents	object	{}	Map of agent IDs to agent configuration objects.
agents.<id>.enabled	boolean	false	Whether this agent is active by default when starting the server without overrides.
agents.<id>.jvmArgs	string[]	[]	JVM arguments to append when this agent is active (e.g. -javaagent:..., -agentlib:jdwp=...). Each entry is a full token as it should appear on the JVM command line.
agents.<id>.description	string	null	Optional human-readable description used in documentation and diagnostics.

---

Using lucli server start with configuration overrides

You can override any of the documented lucee.json keys at startup time using bare key=value arguments. When lucee.json does not exist yet, LuCLI will create a default configuration and then apply your overrides before starting the server.

Examples:

# Static HTML/HTM server (no Lucee, no URL rewrite, no monitoring)
lucli server start enableLucee=false monitoring.enabled=false urlRewrite.enabled=false

# Start with a custom port and disable browser auto-open
lucli server start port=8081 openBrowser=false

These overrides are persisted back into lucee.json so that subsequent lucli server start calls reuse the same configuration.