NAME¶
opam-init - Initialize OPAM state.
SYNOPSIS¶
opam init [
OPTION]... [
NAME] [
ADDRESS]
DESCRIPTION¶
The
init command creates a fresh client state. This initializes OPAM
configuration in
~/.opam and configures a default package repository.
Once the fresh client has been created, OPAM will ask the user if he wants
~/.profile (or i,~/.zshrc, depending on his shell) and
~/.ocamlinit to be updated. If
--auto-setup is used, OPAM will
modify the configuration files automatically, without asking the user. If
--no-setup is used, OPAM will *NOT* modify anything outside of
~/.opam.
Additional repositories can be added later by using the
opam repository
command.
The state of repositories can be synchronized by using
opam update.
The user and global configuration files can be setup later by using
opam
config setup.
ARGUMENTS¶
- ADDRESS (absent=https://opam.ocaml.org)
- Address of the repository.
- NAME (absent=default)
- Name of the repository.
OPTIONS¶
- -a, --auto-setup
- Automatically setup all the global and user configuration options for
OPAM.
- -b, --keep-build-dir
- Keep the build directory. This is equivalent to setting
$OPAMKEEPBUILDDIR to "true".
- --comp=VERSION (absent=system)
- Which compiler version to use.
- --csh
- Use csh-compatible mode for configuring OPAM.
- -d, --build-doc
- Build the package documentation. This is equivalent to setting
$OPAMBUILDDOC to "true".
- --dot-profile=FILENAME
- Name of the configuration file to update instead of ~/.profile or
~/.zshrc based on shell detection.
- --dry-run
- Simulate the command, but don't actually perform any changes.
- -e TAGS, --external=TAGS
- Display the external packages associated to the given tags.
- --fake
- This option registers the actions into the OPAM database, without actually
performing them. WARNING: This option is dangerous and likely to break
your OPAM environment. You probably want `--dry-run'. You've been
warned.
- --fish
- Use fish-compatible mode for configuring OPAM.
- -j JOBS, --jobs=JOBS
- Set the maximal number of concurrent jobs to use. You can also set it
using the $OPAMJOBS environment variable.
- -j JOBS, --jobs=JOBS (absent=1)
- Number of jobs to use when building packages.
- --json=FILENAME
- Save the result output of an OPAM run in a computer-readable file
- -k KIND, --kind=KIND
- Specify the kind of the repository to be set (the main ones are 'http',
'local', 'git', 'darcs' or 'hg').
- -m MAKE, --make=MAKE
- Use MAKE as the default 'make' command.
- -n, --no-setup
- Do not update the global and user configuration options to setup
OPAM.
- --no-checksums
- Do not verify the checksum of downloaded archives.This is equivalent to
setting $OPAMNOCHECKSUMS to "true".
- --require-checksums
- Reject the installation of packages that don't provide a checksum for the
upstream archives. This is equivalent to setting
$OPAMREQUIRECHECKSUMS to "true".
- --sh
- Use sh-compatible mode for configuring OPAM.
- --show-actions
- Call the solver and display the actions. Don't perform any changes.
- -t, --build-test
- Build and run the package unit-tests. This is equivalent to setting
$OPAMBUILDTEST to "true".
- --zsh
- Use zsh-compatible mode for configuring OPAM.
COMMON OPTIONS¶
These options are common to all commands.
- --color=WHEN (absent=auto)
- Colorize the output. WHEN must be `always', `never' or `auto'.
- --compat-mode-1.0
- Compatibility mode with OPAM 1.0
- --criteria=CRITERIA
- Specify user preferences for dependency solving for this run.
Overrides both $OPAMCRITERIA and $OPAMUPGRADECRITERIA. For
details on the supported language, and the external solvers available, see
http://opam.ocaml.org/doc/Specifying_Solver_Preferences.html. A
general guide to using solver preferences can be found at
http://www.dicosmo.org/Articles/usercriteria.pdf. The default value is
-count(down),-count(removed),-notuptodate(solution),-count(new) for
upgrades, and
-count(removed),-notuptodate(request),-count(down),-notuptodate(changed),-count(changed),-notuptodate(solution)
otherwise.
- --cudf=FILENAME
- Debug option: Save the CUDF requests sent to the solver to
FILENAME-<n>.cudf.
- --debug
- Print debug message to stderr. This is equivalent to setting
$OPAMDEBUG to "true".
- --debug-level=LEVEL
- Like `--debug', but allows specifying the debug level (`--debug' sets it
to 1). Equivalent to setting $OPAMDEBUG to a positive integer.
- --git-version
- Print the git version if it exists and exit.
- --help[=FMT] (default=pager)
- Show this help in format FMT (pager, plain or groff).
- --no-base-packages
- Do not install base packages (useful for testing purposes). This is
equivalent to setting $OPAMNOBASEPACKAGES to a non-empty
string.
- --no-self-upgrade
- OPAM will replace itself with a newer binary found at OPAMROOT/opam
if present. This disables this behaviour.
- -q, --quiet
- Be quiet when installing a new compiler.
- --root=ROOT (absent=~/.opam)
- Use ROOT as the current root path. This is equivalent to setting
$OPAMROOT to ROOT.
- --safe
- Make sure nothing will be automatically updated or rewritten. Useful for
calling from completion scripts, for example. Will fail whenever such an
operation is needed ; also avoids waiting for locks, skips interactive
questions and overrides the OPAMDEBUG variable.
- --solver=CMD
- Specify the name of the external dependency solver. The default
value is aspcud
- --strict
- Fail whenever an error is found in a package definition or a configuration
file. The default is to continue silently if possible.
- --switch=SWITCH
- Use SWITCH as the current compiler switch. This is equivalent to
setting $OPAMSWITCH to SWITCH.
- --use-internal-solver, --no-aspcud
- Force use of internal heuristics, even if an external solver is
available.
- -v, --verbose
- Be more verbose. Show output of all sub-commands. This is equivalent to
setting $OPAMVERBOSE to "true".
- --version
- Show version information.
- -y, --yes
- Disable interactive mode and answer yes to all questions that would
otherwise be asked to the user. This is equivalent to setting
$OPAMYES to "true".
ENVIRONMENT VARIABLES¶
OPAM makes use of the environment variables listed here. Boolean variables
should be set to "0", "no" of "false" to
disable, "1", "yes" or "true" to enable.
OPAMCOLOR, when set to
always or
never, sets a default
value for the --color option.
OPAMCRITERIA specifies user
preferences for dependency solving.The
default value is
-count(removed),-notuptodate(request),-count(down),-notuptodate(changed),-count(changed),-notuptodate(solution).
See also option --criteria
OPAMCURL can be used to define an alternative for the 'curl' command-line
utility to download files.
OPAMDEBUG see options `--debug' and `--debug-level'.
OPAMEXTERNALSOLVER see option `--solver'.
OPAMJOBS sets the maximum number of parallel workers to run.
OPAMNOASPCUD see option `--no-aspcud'.
OPAMNOSELFUPGRADE see option `--no-self-upgrade'.
OPAMROOT see option `--root'. This is automatically set by `opam config
env --root=DIR' when DIR is non-default.
OPAMSOLVERTIMEOUT change the time allowance of the internal solver.
OPAMSWITCH see option `--switch'. Automatically set by `opam config env
--switch=SWITCH'.
OPAMUPGRADECRITERIA specifies user
preferences for dependency
solving when performing an upgrade. Overrides
OPAMCRITERIA in upgrades
if both are set.The default value is
-count(down),-count(removed),-notuptodate(solution),-count(new). See also
option --criteria
OPAMUTF8MSGS use nice UTF8 characters in OPAM messages.
OPAMVERBOSE see option `--verbose'.
OPAMVAR_var overrides the contents of the variable
var when
substituting `%{var}%` strings in `opam` files.
OPAMVAR_package_var overrides the contents of the variable
package:var when substituting `%{package:var}%` strings in `opam`
files.
OPAMUSEINTERNALSOLVER see option `--use-internal-solver'.
OPAMYES see option `--yes'.
FURTHER DOCUMENTATION¶
See
https://opam.ocaml.org.
AUTHORS¶
Thomas Gazagnaire <thomas@gazagnaire.org>
Anil Madhavapeddy <anil@recoil.org>
Fabrice Le Fessant <Fabrice.Le_fessant@inria.fr>
Frederic Tuong <tuong@users.gforge.inria.fr>
Louis Gesbert <louis.gesbert@ocamlpro.com>
Vincent Bernardoff <vb@luminar.eu.org>
Guillem Rieu <guillem.rieu@ocamlpro.com>
Roberto Di Cosmo <roberto@dicosmo.org>
BUGS¶
Check bug reports at
https://github.com/ocaml/opam/issues.