1OPAM ADMIN-ADD-CONSTRAINT(1)   Opam admin Manual  OPAM ADMIN-ADD-CONSTRAINT(1)
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NAME

6       opam admin-add-constraint - Adds version constraints on all
7       dependencies towards a given package
8

SYNOPSIS

10       opam admin add-constraint [OPTION]... PACKAGE
11

DESCRIPTION

13       This command searches to all dependencies towards a given package, and
14       adds a version constraint to them. It is particularly useful to add
15       upper bounds to existing dependencies when a new, incompatible major
16       version of a library is added to a repository. The new version
17       constraint is merged with the existing one, and simplified if possible
18       (e.g. >=3 & >5 becomes >5).
19

ARGUMENTS

21       PACKAGE (required)
22           A package name with a version constraint, e.g. name>=version. If no
23           version constraint is specified, the command will just simplify
24           existing version constraints on dependencies to the named package.
25

OPTIONS

27       --force
28           Force updating of constraints even if the resulting constraint is
29           unsatisfiable (e.g. when adding >3 to the constraint <2). The
30           default in this case is to print a warning and keep the existing
31           constraint unchanged.
32

COMMON OPTIONS

34       These options are common to all commands.
35
36       --best-effort
37           Don't fail if all requested packages can't be installed: try to
38           install as many as possible. Note that not all external solvers may
39           support this option (recent versions of aspcud or mccs should).
40           This is equivalent to setting $OPAMBESTEFFORT environment variable.
41
42       --color=WHEN
43           Colorize the output. WHEN must be one of `always', `never' or
44           `auto'.
45
46       --criteria=CRITERIA
47           Specify user preferences for dependency solving for this run.
48           Overrides both $OPAMCRITERIA and $OPAMUPGRADECRITERIA. For details
49           on the supported language, and the external solvers available, see
50           http://opam.ocaml.org/doc/External_solvers.html. A general guide to
51           using solver preferences can be found at
52           http://www.dicosmo.org/Articles/usercriteria.pdf.
53
54       --cudf=FILENAME
55           Debug option: Save the CUDF requests sent to the solver to
56           FILENAME-<n>.cudf.
57
58       --debug
59           Print debug message to stderr. This is equivalent to setting
60           $OPAMDEBUG to "true".
61
62       --debug-level=LEVEL
63           Like --debug, but allows specifying the debug level (--debug sets
64           it to 1). Equivalent to setting $OPAMDEBUG to a positive integer.
65
66       --git-version
67           Print the git version of opam, if set (i.e. you are using a
68           development version), and exit.
69
70       --help[=FMT] (default=auto)
71           Show this help in format FMT. The value FMT must be one of `auto',
72           `pager', `groff' or `plain'. With `auto', the format is `pager` or
73           `plain' whenever the TERM env var is `dumb' or undefined.
74
75       --ignore-pin-depends
76           Ignore extra pins required by packages that get pinned, either
77           manually through opam pin or through opam install DIR. This is
78           equivalent to setting IGNOREPINDEPENDS=true.
79
80       --json=FILENAME
81           Save the results of the opam run in a computer-readable file. If
82           the filename contains the character `%', it will be replaced by an
83           index that doesn't overwrite an existing file. Similar to setting
84           the $OPAMJSON variable.
85
86       --no-aspcud
87           Deprecated.
88
89       --no-auto-upgrade
90           When configuring or updating a repository that is written for an
91           earlier opam version (1.2), opam internally converts it to the
92           current format. This disables this behaviour. Note that
93           repositories should define their format version in a 'repo' file at
94           their root, or they will be assumed to be in the older format. It
95           is, in any case, preferable to upgrade the repositories manually
96           using opam admin upgrade [--mirror URL] when possible.
97
98       -q, --quiet
99           Disables --verbose.
100
101       --root=ROOT
102           Use ROOT as the current root path. This is equivalent to setting
103           $OPAMROOT to ROOT.
104
105       --safe, --readonly
106           Make sure nothing will be automatically updated or rewritten.
107           Useful for calling from completion scripts, for example. Will fail
108           whenever such an operation is needed ; also avoids waiting for
109           locks, skips interactive questions and overrides the $OPAMDEBUG
110           variable. This is equivalent to set environment variable $OPAMSAFE.
111
112       --solver=CMD
113           Specify the CUDF solver to use for resolving package installation
114           problems. This is either a predefined solver (this version of opam
115           supports builtin-mccs+lp(), builtin-mccs+glpk, aspcud, mccs,
116           aspcud-old, packup), or a custom command that should contain the
117           variables %{input}%, %{output}%, %{criteria}%, and optionally
118           %{timeout}%. This is equivalent to setting $OPAMEXTERNALSOLVER.
119
120       --strict
121           Fail whenever an error is found in a package definition or a
122           configuration file. The default is to continue silently if
123           possible.
124
125       --switch=SWITCH
126           Use SWITCH as the current compiler switch. This is equivalent to
127           setting $OPAMSWITCH to SWITCH.
128
129       --use-internal-solver
130           Disable any external solver, and use the built-in one (this
131           requires that opam has been compiled with a built-in solver). This
132           is equivalent to setting $OPAMNOASPCUD or $OPAMUSEINTERNALSOLVER.
133
134       -v, --verbose
135           Be more verbose. One -v shows all package commands, repeat to also
136           display commands called internally (e.g. tar, curl, patch etc.)
137           Repeating n times is equivalent to setting $OPAMVERBOSE to "n".
138
139       --version
140           Show version information.
141
142       -w, --working-dir
143           Whenever updating packages that are bound to a local,
144           version-controlled directory, update to the current working state
145           of their source instead of the last committed state, or the ref
146           they are pointing to. This only affects packages explicitly listed
147           on the command-line.It can also be set with $OPAMWORKINGDIR.
148
149       -y, --yes
150           Answer yes to all yes/no questions without prompting. This is
151           equivalent to setting $OPAMYES to "true".
152

ENVIRONMENT VARIABLES

154       Opam makes use of the environment variables listed here. Boolean
155       variables should be set to "0", "no", "false" or the empty string to
156       disable, "1", "yes" or "true" to enable.
157
158       OPAMALLPARENS surround all filters with parenthesis
159
160       OPAMAUTOREMOVE see remove option `--auto-remove`
161
162       OPAMBESTEFFORT see option `--best-effort`
163
164       OPAMBESTEFFORTPREFIXCRITERIA sets the string that must be prepended to
165       the criteria when the `--best-effort` option is set, and is expected to
166       maximise the `opam-query` property in the solution
167
168       OPAMCOLOR, when set to always or never, sets a default value for the
169       --color option.
170
171       OPAMCRITERIA specifies user preferences for dependency solving. The
172       default value depends on the solver version, use `config report` to
173       know the current setting. See also option --criteria
174
175       OPAMCUDFFILE file save the cudf graph to file-actions-explicit.dot
176
177       OPAMCURL can be used to select a given 'curl' program. See OPAMFETCH
178       for more options.
179
180       OPAMDEBUG see options `--debug' and `--debug-level'.
181
182       OPAMDOWNLOADJOBS sets the maximum number of simultaneous downloads.
183
184       OPAMDRYRUN see option `--dry-run`
185
186       OPAMEDITOR sets the editor to use for opam file editing, overrides
187       $EDITOR and $VISUAL
188
189       OPAMERRLOGLEN sets the number of log lines printed when a sub-process
190       fails. 0 to print all.
191
192       OPAMEXTERNALSOLVER see option `--solver'.
193
194       OPAMFAKE see option `--fake`
195
196       OPAMFETCH specifies how to download files: either `wget', `curl' or a
197       custom command where variables %{url}%, %{out}%, %{retry}%,
198       %{compress}% and %{checksum}% will be replaced. Overrides the
199       'download-command' value from the main config file.
200
201       OPAMFIXUPCRITERIA same as OPAMUPGRADECRITERIA, but specific to fixup
202
203       OPAMIGNORECONSTRAINTS see install option `--ignore-constraints-on`
204
205       OPAMIGNOREPINDEPENDS see option `--ignore-pin-depends`
206
207       OPAMJOBS sets the maximum number of parallel workers to run.
208
209       OPAMJSON log json output to the given file (use character `%' to index
210       the files)
211
212       OPAMLOCKED see install option `--locked`
213
214       OPAMLOGS logdir sets log directory, default is a temporary directory in
215       /tmp
216
217       OPAMMAKECMD set the system make command to use
218
219       OPAMNOAUTOUPGRADE disables automatic internal upgrade of repositories
220       in an earlier format to the current one, on 'update' or 'init'.
221
222       OPAMKEEPLOGS tells opam to not remove some temporary command logs and
223       some backups. This skips some finalisers and may also help to get more
224       reliable backtraces
225
226       OPAMLOCKRETRIES sets the number of tries after which opam gives up
227       acquiring its lock and fails. <= 0 means infinite wait.
228
229       OPAMMERGEOUT merge process outputs, stderr on stdout
230
231       OPAMNO answer no to any question asked.
232
233       OPAMNOASPCUD Deprecated.
234
235       OPAMNOCHECKSUMS enables option --no-checksums when available.
236
237       OPAMNOSELFUPGRADE see option `--no-self-upgrade'.
238
239       OPAMPINKINDAUTO sets whether version control systems should be detected
240       when pinning to a local path. Enabled by default since 1.3.0.
241
242       OPAMPRECISETRACKING fine grain tracking of directories
243
244       OPAMREQUIRECHECKSUMS Enables option `--require-checksums' when
245       available (e.g. for `opam install`).
246
247       OPAMRETRES sets the number of tries before failing downloads.
248
249       OPAMROOT see option `--root'. This is automatically set by `opam env
250       --root=DIR --set-root'.
251
252       OPAMROOTISOK don't complain when running as root.
253
254       OPAMSAFE see option `--safe'
255
256       OPAMSHOW see option `--show`
257
258       OPAMSKIPUPDATE see option `--skip-updates`
259
260       OPAMSKIPVERSIONCHECKS bypasses some version checks. Unsafe, for
261       compatibility testing only.
262
263       OPAMSOLVERTIMEOUT change the time allowance of the solver. Default is
264       60.0, set to 0 for unlimited. Note that all solvers may not support
265       this option.
266
267       OPAMSTATUSLINE display a dynamic status line showing what's currently
268       going on on the terminal. (one of one of `always', `never' or `auto')
269
270       OPAMSTATS display stats at the end of command
271
272       OPAMSTRICT fail on inconsistencies (file reading, switch import, etc.)
273
274       OPAMSWITCH see option `--switch'. Automatically set by `opam env
275       --switch=SWITCH --set-switch'.
276
277       OPAMUNLOCKBASE see install option `--unlock-base`
278
279       OPAMUPGRADECRITERIA specifies user preferences for dependency solving
280       when performing an upgrade. Overrides OPAMCRITERIA in upgrades if both
281       are set. See also option --criteria
282
283       OPAMUSEINTERNALSOLVER see option `--use-internal-solver'.
284
285       OPAMUSEOPENSSL force openssl use for hash computing
286
287       OPAMUTF8 use UTF8 characters in output (one of one of `always', `never'
288       or `auto'). By default `auto', which is determined from the locale).
289
290       OPAMUTF8MSGS use extended UTF8 characters (camels) in opam messages.
291       Implies OPAMUTF8. This is set by default on OSX only.
292
293       OPAMVALIDATIONHOOK hook if set, uses the `%{hook%}` command to validate
294       an opam repository update
295
296       OPAMVAR_var overrides the contents of the variable var when
297       substituting `%{var}%` strings in `opam` files.
298
299       OPAMVAR_package_var overrides the contents of the variable package:var
300       when substituting `%{package:var}%` strings in `opam` files.
301
302       OPAMVERBOSE see option `--verbose'.
303
304       OPAMWORKINGDIR see option `--working-dir`
305
306       OPAMYES see option `--yes'.
307

EXIT STATUS

309       As an exception to the following, the `exec' command returns 127 if the
310       command was not found or couldn't be executed, and the command's exit
311       value otherwise.
312
313       0   Success, or true for boolean queries.
314
315       1   False. Returned when a boolean return value is expected, e.g. when
316           running with --check, or for queries like opam lint.
317
318       2   Bad command-line arguments, or command-line arguments pointing to
319           an invalid context (e.g. file not following the expected format).
320
321       5   Not found. You requested something (package, version, repository,
322           etc.) that couldn't be found.
323
324       10  Aborted. The operation required confirmation, which wasn't given.
325
326       15  Could not acquire the locks required for the operation.
327
328       20  There is no solution to the user request. This can be caused by
329           asking to install two incompatible packages, for example.
330
331       30  Error in package definition, or other metadata files. Using
332           --strict raises this error more often.
333
334       31  Package script error. Some package operations were unsuccessful.
335           This may be an error in the packages or an incompatibility with
336           your system. This can be a partial error.
337
338       40  Sync error. Could not fetch some remotes from the network. This can
339           be a partial error.
340
341       50  Configuration error. Opam or system configuration doesn't allow
342           operation, and needs fixing.
343
344       60  Solver failure. The solver failed to return a sound answer. It can
345           be due to a broken external solver, or an error in solver
346           configuration.
347
348       99  Internal error. Something went wrong, likely due to a bug in opam
349           itself.
350
351       130 User interrupt. SIGINT was received, generally due to the user
352           pressing Ctrl-C.
353

FURTHER DOCUMENTATION

355       See https://opam.ocaml.org/doc.
356

AUTHORS

358       Vincent Bernardoff <vb@luminar.eu.org>
359       Raja Boujbel <raja.boujbel@ocamlpro.com>
360       Roberto Di Cosmo <roberto@dicosmo.org>
361       Thomas Gazagnaire <thomas@gazagnaire.org>
362       Louis Gesbert <louis.gesbert@ocamlpro.com>
363       Fabrice Le Fessant <Fabrice.Le_fessant@inria.fr>
364       Anil Madhavapeddy <anil@recoil.org>
365       Guillem Rieu <guillem.rieu@ocamlpro.com>
366       Ralf Treinen <ralf.treinen@pps.jussieu.fr>
367       Frederic Tuong <tuong@users.gforge.inria.fr>
368

BUGS

370       Check bug reports at https://github.com/ocaml/opam/issues.
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374Opam admin 2.0.6                                  OPAM ADMIN-ADD-CONSTRAINT(1)
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