--- name: mise-environment-management-cffb38b53b98 user-invocable: false description: Use when managing environment variables and project settings with Mise. Covers env configuration, direnv replacement, and per-directory settings. allowed-tools: - Read - Write - Edit - Bash - Grep - Glob --- # Mise - Environment Management Managing environment variables, project settings, and directory-specific configuration with Mise. ## Basic Environment Variables ### Defining Environment Variables ```toml # mise.toml [env] NODE_ENV = "production" DATABASE_URL = "postgresql://localhost/myapp" API_KEY = "development-key" LOG_LEVEL = "info" ``` ### Loading Environment ```bash # Activate mise environment mise activate bash # Or zsh, fish # Or use mise exec mise exec -- node app.js # Or mise run mise run start ``` ## Advanced Environment Configuration ### Template Variables ```toml [env] PROJECT_ROOT = "{{ config_root }}" DATA_DIR = "{{ config_root }}/data" LOG_FILE = "{{ config_root }}/logs/app.log" ``` ### Environment File Loading ```toml [env] _.file = ".env" _.file = [".env", ".env.local"] ``` ### Conditional Environment Variables ```toml [env] # Set based on other variables DATABASE_URL = "postgresql://{{ env.DB_HOST | default(value='localhost') }}/{{ env.DB_NAME }}" ``` ## Path Management ### Adding to PATH ```toml [env] _.path = [ "{{ config_root }}/bin", "{{ config_root }}/scripts", "/usr/local/bin" ] ``` ### Library Paths ```toml [env] LD_LIBRARY_PATH = "{{ config_root }}/lib:$LD_LIBRARY_PATH" DYLD_LIBRARY_PATH = "{{ config_root }}/lib:$DYLD_LIBRARY_PATH" ``` ## Tool-Specific Environments ### Python Virtual Environment ```toml [tools] python = "3.12" [env] _.python.venv = { path = ".venv", create = true } VIRTUAL_ENV = "{{ config_root }}/.venv" ``` ### Node.js Environment ```toml [tools] node = "20.10.0" [env] NODE_ENV = "development" NODE_OPTIONS = "--max-old-space-size=4096" NPM_CONFIG_PREFIX = "{{ config_root }}/.npm-global" ``` ### Go Environment ```toml [tools] go = "1.21" [env] GOPATH = "{{ config_root }}/.go" GOBIN = "{{ config_root }}/.go/bin" GO111MODULE = "on" ``` ## Replacing direnv ### Basic direnv Replacement ```toml # Instead of .envrc # export DATABASE_URL=postgresql://localhost/myapp # export NODE_ENV=development # Use mise.toml [env] DATABASE_URL = "postgresql://localhost/myapp" NODE_ENV = "development" ``` ### Allowed Directories ```toml # mise.toml - mark as trusted [settings] experimental_monorepo_root = true # Trust subdirectories ``` ### Watch File Changes Mise automatically reloads when mise.toml changes, similar to direnv. ## Hierarchical Configuration ### Global Settings ```toml # ~/.config/mise/config.toml [env] EDITOR = "code" GIT_AUTHOR_NAME = "Your Name" GIT_AUTHOR_EMAIL = "you@example.com" ``` ### Project Settings ```toml # ~/projects/myapp/mise.toml [env] PROJECT_NAME = "myapp" DATABASE_URL = "postgresql://localhost/myapp" ``` ### Local Overrides ```toml # ~/projects/myapp/mise.local.toml (gitignored) [env] DATABASE_URL = "postgresql://localhost/myapp-dev" DEBUG = "true" ``` ## Sensitive Data ### Environment Files ```toml # mise.toml [env] _.file = ".env.local" # Gitignored file with secrets ``` ```bash # .env.local (add to .gitignore) API_KEY=secret-key-here DATABASE_PASSWORD=secret-password ``` ### Using System Environment ```toml [env] # Reference existing environment variables API_KEY = "$API_KEY" DATABASE_URL = "$DATABASE_URL" ``` ### Secure Secrets Management ```bash # Don't commit secrets to mise.toml # Instead, reference from external secret managers # Example with 1Password CLI mise exec -- op run -- node app.js # Or load from encrypted file mise exec -- sops exec-env .env.encrypted -- node app.js ``` ## Mise Environment Variables ### Built-in Variables Mise provides these variables automatically: ```bash $MISE_ORIGINAL_CWD # Directory where mise was invoked $MISE_CONFIG_ROOT # Directory containing mise.toml $MISE_PROJECT_ROOT # Project root directory $MISE_DATA_DIR # Mise data directory $MISE_CACHE_DIR # Mise cache directory ``` ### Using in Configuration ```toml [env] PROJECT_ROOT = "{{ env.MISE_PROJECT_ROOT }}" CONFIG_FILE = "{{ env.MISE_CONFIG_ROOT }}/config.yaml" ``` ## Configuration Validation ### Check Current Environment ```bash # Show current environment mise env # Show specific variable mise env DATABASE_URL # Export as shell commands mise env -s bash > .env.sh source .env.sh ``` ### Verify Configuration ```bash # Check loaded config files mise config # Show resolved settings mise settings ``` ## Best Practices ### Separate Public and Private Config ```toml # mise.toml (committed) [env] NODE_ENV = "development" LOG_LEVEL = "info" API_URL = "https://api.example.com" # mise.local.toml (gitignored) [env] API_KEY = "secret-key" DATABASE_PASSWORD = "secret-password" ``` ### Use Descriptive Variable Names ```toml # Good: Clear, descriptive names [env] DATABASE_CONNECTION_POOL_SIZE = "10" API_REQUEST_TIMEOUT_MS = "5000" FEATURE_FLAG_NEW_UI = "true" # Avoid: Vague abbreviations [env] DB_POOL = "10" TIMEOUT = "5000" FLAG = "true" ``` ### Document Required Variables ```toml # mise.toml [env] # Database configuration (required) DATABASE_URL = "postgresql://localhost/myapp" # API keys (set in mise.local.toml) # API_KEY = "your-key-here" # Optional feature flags FEATURE_ANALYTICS = "false" ``` ### Use Templates for Paths ```toml # Good: Relative to config root [env] DATA_DIR = "{{ config_root }}/data" LOGS_DIR = "{{ config_root }}/logs" # Avoid: Hardcoded paths [env] DATA_DIR = "/Users/me/project/data" ``` ## Common Patterns ### Multi-Environment Setup ```toml # mise.toml - base configuration [env] APP_NAME = "myapp" LOG_FORMAT = "json" # mise.development.toml [env] NODE_ENV = "development" DEBUG = "true" DATABASE_URL = "postgresql://localhost/myapp_dev" # mise.production.toml [env] NODE_ENV = "production" DEBUG = "false" DATABASE_URL = "postgresql://prod-server/myapp" ``` ```bash # Switch environments ln -sf mise.development.toml mise.local.toml # Or ln -sf mise.production.toml mise.local.toml ``` ### Database Configuration ```toml [env] DATABASE_HOST = "localhost" DATABASE_PORT = "5432" DATABASE_NAME = "myapp" DATABASE_USER = "postgres" DATABASE_URL = "postgresql://{{ env.DATABASE_USER }}:{{ env.DATABASE_PASSWORD }}@{{ env.DATABASE_HOST }}:{{ env.DATABASE_PORT }}/{{ env.DATABASE_NAME }}" ``` ### Feature Flags ```toml [env] # Feature toggles FEATURE_NEW_DASHBOARD = "true" FEATURE_BETA_API = "false" FEATURE_EXPERIMENTAL_CACHE = "true" # Feature rollout percentages FEATURE_NEW_CHECKOUT_ROLLOUT = "25" ``` ### CI/CD Environment ```toml # mise.toml [env] NODE_ENV = "{{ env.CI | default(value='development') }}" SKIP_PREFLIGHT_CHECK = "{{ env.CI | default(value='false') }}" ``` ## Anti-Patterns ### Don't Commit Secrets ```toml # Bad: Secrets in committed file [env] API_KEY = "sk-secret-key-12345" DATABASE_PASSWORD = "password123" # Good: Reference from secure location [env] _.file = ".env.local" # Gitignored ``` ### Don't Duplicate Global Config ```toml # Bad: Repeating global settings in every project # ~/project-a/mise.toml [env] EDITOR = "code" GIT_AUTHOR_NAME = "Your Name" # ~/project-b/mise.toml [env] EDITOR = "code" GIT_AUTHOR_NAME = "Your Name" # Good: Use global config # ~/.config/mise/config.toml [env] EDITOR = "code" GIT_AUTHOR_NAME = "Your Name" ``` ### Don't Hardcode Environment Names ```toml # Bad: Hardcoded check [tasks.deploy] run = ''' if [ "$NODE_ENV" = "production" ]; then ./deploy-prod.sh fi ''' # Good: Use configuration [tasks.deploy] env = { DEPLOYMENT_TARGET = "production" } run = "./deploy.sh" ``` ## Advanced Patterns ### Dynamic Environment Loading ```toml [env] # Load environment based on git branch BRANCH = "{{ exec(command='git branch --show-current') }}" DEPLOY_ENV = "{{ env.BRANCH | replace(from='main', to='production') | replace(from='develop', to='staging') }}" ``` ### Computed Variables ```toml [env] PROJECT_NAME = "myapp" NAMESPACE = "{{ env.PROJECT_NAME }}-{{ env.ENVIRONMENT }}" REDIS_URL = "redis://{{ env.NAMESPACE }}-redis:6379" ``` ### Environment Inheritance ```toml # Base configuration [env] LOG_LEVEL = "info" CACHE_TTL = "3600" # Override in specific contexts [env.production] LOG_LEVEL = "warn" CACHE_TTL = "7200" ``` ## Related Skills - **task-configuration**: Using environment variables in tasks - **tool-management**: Tool-specific environment configuration --- Source attribution: TheBushidoCollective Original project: https://github.com/TheBushidoCollective/han/blob/19caa51d5fd144ef6b2764f2332f4c856aa5d1af/plugins/tools/mise/skills/environment-management/SKILL.md License: Apache-2.0 License information: https://www.apache.org/licenses/LICENSE-2.0 Original upstream instructions; downloaded from Mega AI Hub. ## Upstream license notice # Functional Source License, Version 1.1, ALv2 Future License ## Abbreviation FSL-1.1-ALv2 ## Notice Copyright 2025 The Bushido Collective ## Terms and Conditions ### Licensor ("We") The party offering the Software under these Terms and Conditions. ### The Software The "Software" is each version of the software that we make available under these Terms and Conditions, as indicated by our inclusion of these Terms and Conditions with the Software. ### License Grant Subject to your compliance with this License Grant and the Patents, Redistribution and Trademark clauses below, we hereby grant you the right to use, copy, modify, create derivative works, publicly perform, publicly display and redistribute the Software for any Permitted Purpose identified below. ### Permitted Purpose A Permitted Purpose is any purpose other than a Competing Use. 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You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. # Mega AI Hub resource metadata Creator / publisher: TheBushidoCollective Original project: https://github.com/TheBushidoCollective/han/blob/19caa51d5fd144ef6b2764f2332f4c856aa5d1af/plugins/tools/mise/skills/environment-management/SKILL.md Attribution basis: Source repository record Fields of work: Development & Engineering Roles: Backend Developer, Data Engineer, DevOps / SRE Specialties: Backend Tools: Mise Country applicability: Country not specified Classification basis: Source catalog labels Instruction SHA-256: 7c97cbdeb7088e2291d7fda32154a584e68a11cdd54b54793322e8b0371b539c