1OPAM-LIST(1)                      Opam Manual                     OPAM-LIST(1)
2
3
4

NAME

6       opam-list - Display the list of available packages.
7

SYNOPSIS

9       opam list [OPTION]... [PATTERNS]...
10

DESCRIPTION

12       List selections of opam packages.
13
14       Without argument, the command displays the list of currently installed
15       packages. With pattern arguments, lists all available packages matching
16       one of the patterns.
17
18       Unless the --short switch is used, the output format displays one
19       package per line, and each line contains the name of the package, the
20       installed version or `--' if the package is not installed, and a short
21       description. In color mode, manually installed packages (as opposed to
22       automatically installed ones because of dependencies) are underlined.
23
24       See section PACKAGE SELECTION OPTIONS for all the ways to select the
25       packages to be displayed, and section OUTPUT FORMAT OPTIONS to
26       customise the output format.
27
28       For a more detailed description of packages, see opam show. For
29       extended search capabilities within the packages' metadata, see opam
30       search.
31

ARGUMENTS

33       PATTERNS
34           Package patterns with globs. Unless --search is specified, they
35           match againsta NAME or NAME.VERSION
36

PACKAGE SELECTION OPTIONS

38       -A, --all
39           Include all, even uninstalled or unavailable packages
40
41       -a, --available
42           List only packages that are available on the current system
43
44       --base
45           List only the immutable base of the current switch (i.e. compiler
46           packages)
47
48       --coinstallable-with=PACKAGES
49           Only list packages that are compatible with all of PACKAGES.
50
51       --conflicts-with=PACKAGES
52           List packages that have declared conflicts with at least one of the
53           given list. This includes conflicts defined from the packages in
54           the list, from the other package, or by a common conflict-class:
55           field.
56
57       --depends-on=PACKAGES
58           List only packages that depend on one of (comma-separated)
59           PACKAGES.
60
61       --depopts
62           Include optional dependencies in dependency requests.
63
64       --dev
65           Include development packages in dependencies.
66
67       --field-match=FIELD:PATTERN
68           Filter packages with a match for PATTERN on the given FIELD
69
70       --has-flag=FLAG
71           Only include packages which have the given flag set. Package flags
72           are one of: light-uninstall verbose plugin compiler conf
73
74       --has-tag=TAG
75           Only includes packages which have the given tag set
76
77       -i, --installed
78           List installed packages only. This is the default when no further
79           arguments are supplied
80
81       --installable
82           List only packages that can be installed on the current switch
83           (this calls the solver and may be more costly; a package depending
84           on an unavailable package may be available, but is never
85           installable)
86
87       --no-switch
88           List what is available from the repositories, without consideration
89           for the current (or any other) switch (installed or pinned
90           packages, etc.)
91
92       --nobuild
93           Exclude build dependencies (they are included by default).
94
95       --or
96           Instead of selecting packages that match all the criteria, select
97           packages that match any of them
98
99       --owns-file=FILE
100           Finds installed packages responsible for installing the given file
101
102       --pinned
103           List only the pinned packages
104
105       --post
106           Include dependencies tagged as post.
107
108       --recursive
109           With `--depends-on' and `--required-by', display all transitive
110           dependencies rather than just direct dependencies.
111
112       --repos=REPOS
113           Include only packages that took their origin from one of the given
114           repositories (unless no-switch is also specified, this excludes
115           pinned packages).
116
117       --required-by=PACKAGES
118           List only the dependencies of (comma-separated) PACKAGES.
119
120       --resolve=PACKAGES
121           Restrict to a solution to install (comma-separated) PACKAGES, i.e.
122           a consistent set of packages including those. This is subtly
123           different from `--required-by --recursive`, which is more
124           predictable and can't fail, but lists all dependencies
125           independently without ensuring consistency. Without `--installed`,
126           the answer is self-contained and independent of the current
127           installation. With `--installed', it's computed from the set of
128           currently installed packages. `--no-switch` further makes the
129           solution independent from the currently pinned packages,
130           architecture, and compiler version. The combination with
131           `--depopts' is not supported.
132
133       --roots, --installed-roots
134           List only packages that were explicitly installed, excluding the
135           ones installed as dependencies
136
137       --search
138           Match PATTERNS against the full descriptions of packages, and
139           require all of them to match, instead of requiring at least one to
140           match against package names (unless --or is also specified).
141
142       -t, --with-test, --test
143           Include test-only dependencies.
144
145       --with-doc, --doc
146           Include doc-only dependencies.
147

OUTPUT FORMAT OPTIONS

149       --columns=COLUMNS
150           Select the columns to display among: name, version, package,
151           synopsis, synopsis-or-target, description, <field>:,
152           installed-version, pin, source-hash, opam-file,
153           all-installed-versions, available-versions, all-versions,
154           repository, installed-files, vc-ref, depexts. The default is name
155           when --short is present and name, installed-version,
156           synopsis-or-target otherwise.
157
158       -e, --external, --depexts
159           Instead of displaying the packages, display their external
160           dependencies that are associated with the current system. This
161           excludes other display options. Rather than using this directly,
162           you should probably head for the `depext' plugin, that will use
163           your system package management system to handle the installation of
164           the dependencies. Run `opam depext'.
165
166       --normalise
167           Print the values of opam fields normalised
168
169       -S, --sort
170           Sort the packages in dependency order (i.e. an order in which they
171           could be individually installed.)
172
173       -s, --short
174           Don't print a header, and sets the default columns to name only. If
175           you need package versions included, use --columns=package instead
176
177       --separator=STRING (absent= )
178           Set the column-separator string
179
180       -V, --all-versions
181           Normally, when multiple versions of a package match, only one is
182           shown in the output (the installed one, the pinned-to one, or,
183           failing that, the highest one available or the highest one). This
184           flag disables this behaviour and shows all matching versions. This
185           also changes the default display format to include package versions
186           instead of just package names (including when --short is set). This
187           is automatically turned on when a single non-pattern package name
188           is provided on the command-line.
189
190       --vars=[VAR=STR,...]
191           Define the given variable bindings. Typically useful with
192           --external to override the values for arch, os, os-distribution,
193           os-version, os-family.
194
195       --wrap
196           Wrap long lines, the default being to truncate when displaying on a
197           terminal, or to keep as is otherwise
198

OPTIONS

200       --silent
201           Don't write anything in the output, exit with return code 0 if the
202           list is not empty, 1 otherwise.
203

COMMON OPTIONS

205       These options are common to all commands.
206
207       --best-effort
208           Don't fail if all requested packages can't be installed: try to
209           install as many as possible. Note that not all external solvers may
210           support this option (recent versions of aspcud or mccs should).
211           This is equivalent to setting $OPAMBESTEFFORT environment variable.
212
213       --color=WHEN
214           Colorize the output. WHEN must be one of `always', `never' or
215           `auto'.
216
217       --criteria=CRITERIA
218           Specify user preferences for dependency solving for this run.
219           Overrides both $OPAMCRITERIA and $OPAMUPGRADECRITERIA. For details
220           on the supported language, and the external solvers available, see
221           http://opam.ocaml.org/doc/External_solvers.html. A general guide to
222           using solver preferences can be found at
223           http://www.dicosmo.org/Articles/usercriteria.pdf.
224
225       --cudf=FILENAME
226           Debug option: Save the CUDF requests sent to the solver to
227           FILENAME-<n>.cudf.
228
229       --debug
230           Print debug message to stderr. This is equivalent to setting
231           $OPAMDEBUG to "true".
232
233       --debug-level=LEVEL
234           Like --debug, but allows specifying the debug level (--debug sets
235           it to 1). Equivalent to setting $OPAMDEBUG to a positive integer.
236
237       --git-version
238           Print the git version of opam, if set (i.e. you are using a
239           development version), and exit.
240
241       --help[=FMT] (default=auto)
242           Show this help in format FMT. The value FMT must be one of `auto',
243           `pager', `groff' or `plain'. With `auto', the format is `pager` or
244           `plain' whenever the TERM env var is `dumb' or undefined.
245
246       --ignore-pin-depends
247           Ignore extra pins required by packages that get pinned, either
248           manually through opam pin or through opam install DIR. This is
249           equivalent to setting IGNOREPINDEPENDS=true.
250
251       --json=FILENAME
252           Save the results of the opam run in a computer-readable file. If
253           the filename contains the character `%', it will be replaced by an
254           index that doesn't overwrite an existing file. Similar to setting
255           the $OPAMJSON variable.
256
257       --no-aspcud
258           Deprecated.
259
260       --no-auto-upgrade
261           When configuring or updating a repository that is written for an
262           earlier opam version (1.2), opam internally converts it to the
263           current format. This disables this behaviour. Note that
264           repositories should define their format version in a 'repo' file at
265           their root, or they will be assumed to be in the older format. It
266           is, in any case, preferable to upgrade the repositories manually
267           using opam admin upgrade [--mirror URL] when possible.
268
269       --no-self-upgrade
270           Opam will replace itself with a newer binary found at OPAMROOT/opam
271           if present. This disables this behaviour.
272
273       -q, --quiet
274           Disables --verbose.
275
276       --root=ROOT
277           Use ROOT as the current root path. This is equivalent to setting
278           $OPAMROOT to ROOT.
279
280       --safe, --readonly
281           Make sure nothing will be automatically updated or rewritten.
282           Useful for calling from completion scripts, for example. Will fail
283           whenever such an operation is needed ; also avoids waiting for
284           locks, skips interactive questions and overrides the $OPAMDEBUG
285           variable. This is equivalent to set environment variable $OPAMSAFE.
286
287       --solver=CMD
288           Specify the CUDF solver to use for resolving package installation
289           problems. This is either a predefined solver (this version of opam
290           supports builtin-mccs+lp(), builtin-mccs+glpk, aspcud, mccs,
291           aspcud-old, packup), or a custom command that should contain the
292           variables %{input}%, %{output}%, %{criteria}%, and optionally
293           %{timeout}%. This is equivalent to setting $OPAMEXTERNALSOLVER.
294
295       --strict
296           Fail whenever an error is found in a package definition or a
297           configuration file. The default is to continue silently if
298           possible.
299
300       --switch=SWITCH
301           Use SWITCH as the current compiler switch. This is equivalent to
302           setting $OPAMSWITCH to SWITCH.
303
304       --use-internal-solver
305           Disable any external solver, and use the built-in one (this
306           requires that opam has been compiled with a built-in solver). This
307           is equivalent to setting $OPAMNOASPCUD or $OPAMUSEINTERNALSOLVER.
308
309       -v, --verbose
310           Be more verbose. One -v shows all package commands, repeat to also
311           display commands called internally (e.g. tar, curl, patch etc.)
312           Repeating n times is equivalent to setting $OPAMVERBOSE to "n".
313
314       --version
315           Show version information.
316
317       -w, --working-dir
318           Whenever updating packages that are bound to a local,
319           version-controlled directory, update to the current working state
320           of their source instead of the last committed state, or the ref
321           they are pointing to. This only affects packages explicitly listed
322           on the command-line.It can also be set with $OPAMWORKINGDIR.
323
324       -y, --yes
325           Answer yes to all yes/no questions without prompting. This is
326           equivalent to setting $OPAMYES to "true".
327

ENVIRONMENT VARIABLES

329       Opam makes use of the environment variables listed here. Boolean
330       variables should be set to "0", "no", "false" or the empty string to
331       disable, "1", "yes" or "true" to enable.
332
333       OPAMALLPARENS surround all filters with parenthesis
334
335       OPAMAUTOREMOVE see remove option `--auto-remove`
336
337       OPAMBESTEFFORT see option `--best-effort`
338
339       OPAMBESTEFFORTPREFIXCRITERIA sets the string that must be prepended to
340       the criteria when the `--best-effort` option is set, and is expected to
341       maximise the `opam-query` property in the solution
342
343       OPAMCOLOR, when set to always or never, sets a default value for the
344       --color option.
345
346       OPAMCRITERIA specifies user preferences for dependency solving. The
347       default value depends on the solver version, use `config report` to
348       know the current setting. See also option --criteria
349
350       OPAMCUDFFILE file save the cudf graph to file-actions-explicit.dot
351
352       OPAMCURL can be used to select a given 'curl' program. See OPAMFETCH
353       for more options.
354
355       OPAMDEBUG see options `--debug' and `--debug-level'.
356
357       OPAMDOWNLOADJOBS sets the maximum number of simultaneous downloads.
358
359       OPAMDRYRUN see option `--dry-run`
360
361       OPAMEDITOR sets the editor to use for opam file editing, overrides
362       $EDITOR and $VISUAL
363
364       OPAMERRLOGLEN sets the number of log lines printed when a sub-process
365       fails. 0 to print all.
366
367       OPAMEXTERNALSOLVER see option `--solver'.
368
369       OPAMFAKE see option `--fake`
370
371       OPAMFETCH specifies how to download files: either `wget', `curl' or a
372       custom command where variables %{url}%, %{out}%, %{retry}%,
373       %{compress}% and %{checksum}% will be replaced. Overrides the
374       'download-command' value from the main config file.
375
376       OPAMFIXUPCRITERIA same as OPAMUPGRADECRITERIA, but specific to fixup
377
378       OPAMIGNORECONSTRAINTS see install option `--ignore-constraints-on`
379
380       OPAMIGNOREPINDEPENDS see option `--ignore-pin-depends`
381
382       OPAMJOBS sets the maximum number of parallel workers to run.
383
384       OPAMJSON log json output to the given file (use character `%' to index
385       the files)
386
387       OPAMLOCKED see install option `--locked`
388
389       OPAMLOGS logdir sets log directory, default is a temporary directory in
390       /tmp
391
392       OPAMMAKECMD set the system make command to use
393
394       OPAMNOAUTOUPGRADE disables automatic internal upgrade of repositories
395       in an earlier format to the current one, on 'update' or 'init'.
396
397       OPAMKEEPLOGS tells opam to not remove some temporary command logs and
398       some backups. This skips some finalisers and may also help to get more
399       reliable backtraces
400
401       OPAMLOCKRETRIES sets the number of tries after which opam gives up
402       acquiring its lock and fails. <= 0 means infinite wait.
403
404       OPAMMERGEOUT merge process outputs, stderr on stdout
405
406       OPAMNO answer no to any question asked.
407
408       OPAMNOASPCUD Deprecated.
409
410       OPAMNOCHECKSUMS enables option --no-checksums when available.
411
412       OPAMNOSELFUPGRADE see option `--no-self-upgrade'.
413
414       OPAMPINKINDAUTO sets whether version control systems should be detected
415       when pinning to a local path. Enabled by default since 1.3.0.
416
417       OPAMPRECISETRACKING fine grain tracking of directories
418
419       OPAMREQUIRECHECKSUMS Enables option `--require-checksums' when
420       available (e.g. for `opam install`).
421
422       OPAMRETRES sets the number of tries before failing downloads.
423
424       OPAMROOT see option `--root'. This is automatically set by `opam env
425       --root=DIR --set-root'.
426
427       OPAMROOTISOK don't complain when running as root.
428
429       OPAMSAFE see option `--safe'
430
431       OPAMSHOW see option `--show`
432
433       OPAMSKIPUPDATE see option `--skip-updates`
434
435       OPAMSKIPVERSIONCHECKS bypasses some version checks. Unsafe, for
436       compatibility testing only.
437
438       OPAMSOLVERTIMEOUT change the time allowance of the solver. Default is
439       60.0, set to 0 for unlimited. Note that all solvers may not support
440       this option.
441
442       OPAMSTATUSLINE display a dynamic status line showing what's currently
443       going on on the terminal. (one of one of `always', `never' or `auto')
444
445       OPAMSTATS display stats at the end of command
446
447       OPAMSTRICT fail on inconsistencies (file reading, switch import, etc.)
448
449       OPAMSWITCH see option `--switch'. Automatically set by `opam env
450       --switch=SWITCH --set-switch'.
451
452       OPAMUNLOCKBASE see install option `--unlock-base`
453
454       OPAMUPGRADECRITERIA specifies user preferences for dependency solving
455       when performing an upgrade. Overrides OPAMCRITERIA in upgrades if both
456       are set. See also option --criteria
457
458       OPAMUSEINTERNALSOLVER see option `--use-internal-solver'.
459
460       OPAMUSEOPENSSL force openssl use for hash computing
461
462       OPAMUTF8 use UTF8 characters in output (one of one of `always', `never'
463       or `auto'). By default `auto', which is determined from the locale).
464
465       OPAMUTF8MSGS use extended UTF8 characters (camels) in opam messages.
466       Implies OPAMUTF8. This is set by default on OSX only.
467
468       OPAMVALIDATIONHOOK hook if set, uses the `%{hook%}` command to validate
469       an opam repository update
470
471       OPAMVAR_var overrides the contents of the variable var when
472       substituting `%{var}%` strings in `opam` files.
473
474       OPAMVAR_package_var overrides the contents of the variable package:var
475       when substituting `%{package:var}%` strings in `opam` files.
476
477       OPAMVERBOSE see option `--verbose'.
478
479       OPAMWORKINGDIR see option `--working-dir`
480
481       OPAMYES see option `--yes'.
482

EXIT STATUS

484       As an exception to the following, the `exec' command returns 127 if the
485       command was not found or couldn't be executed, and the command's exit
486       value otherwise.
487
488       0   Success, or true for boolean queries.
489
490       1   False. Returned when a boolean return value is expected, e.g. when
491           running with --check, or for queries like opam lint.
492
493       2   Bad command-line arguments, or command-line arguments pointing to
494           an invalid context (e.g. file not following the expected format).
495
496       5   Not found. You requested something (package, version, repository,
497           etc.) that couldn't be found.
498
499       10  Aborted. The operation required confirmation, which wasn't given.
500
501       15  Could not acquire the locks required for the operation.
502
503       20  There is no solution to the user request. This can be caused by
504           asking to install two incompatible packages, for example.
505
506       30  Error in package definition, or other metadata files. Using
507           --strict raises this error more often.
508
509       31  Package script error. Some package operations were unsuccessful.
510           This may be an error in the packages or an incompatibility with
511           your system. This can be a partial error.
512
513       40  Sync error. Could not fetch some remotes from the network. This can
514           be a partial error.
515
516       50  Configuration error. Opam or system configuration doesn't allow
517           operation, and needs fixing.
518
519       60  Solver failure. The solver failed to return a sound answer. It can
520           be due to a broken external solver, or an error in solver
521           configuration.
522
523       99  Internal error. Something went wrong, likely due to a bug in opam
524           itself.
525
526       130 User interrupt. SIGINT was received, generally due to the user
527           pressing Ctrl-C.
528

FURTHER DOCUMENTATION

530       See https://opam.ocaml.org/doc.
531

AUTHORS

533       Vincent Bernardoff <vb@luminar.eu.org>
534       Raja Boujbel <raja.boujbel@ocamlpro.com>
535       Roberto Di Cosmo <roberto@dicosmo.org>
536       Thomas Gazagnaire <thomas@gazagnaire.org>
537       Louis Gesbert <louis.gesbert@ocamlpro.com>
538       Fabrice Le Fessant <Fabrice.Le_fessant@inria.fr>
539       Anil Madhavapeddy <anil@recoil.org>
540       Guillem Rieu <guillem.rieu@ocamlpro.com>
541       Ralf Treinen <ralf.treinen@pps.jussieu.fr>
542       Frederic Tuong <tuong@users.gforge.inria.fr>
543

BUGS

545       Check bug reports at https://github.com/ocaml/opam/issues.
546
547
548
549Opam 2.0.6                                                        OPAM-LIST(1)
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