1DUNE-RULES(1) Dune Manual DUNE-RULES(1)
2
6 dune-rules - Dump internal rules.
7
9 dune rules [OPTION]… [TARGET]…
10
12 Dump Dune internal rules for the given targets. If no targets are
13 given, dump all the internal rules.
14 By default the output is a list of S-expressions, one S-expression per
16 rule. Each S-expression is of the form:
17 ((deps (<dependencies>))
19 (targets (<targets>))
20 (context <context-name>)
21 (action <action>))
22 <context-name> is the context is which the action is executed. It is
24 omitted if the action is independent from the context.
25 <action> is the action following the same syntax as user actions, as
27 described in the manual.
28
30 --action-stderr-on-success=VAL
31 Same as --action-stdout-on-success but for the standard output for
32 error messages. A good default for large mono-repositories is
33 --action-stdout-on-success=swallow
34 --action-stderr-on-success=must-be-empty. This ensures that a
35 successful build has a "clean" empty output.
36 --action-stdout-on-success=VAL
38 Specify how to deal with the standard output of actions when they
39 succeed. Possible values are: print to just print it to Dune's
40 output, swallow to completely ignore it and must-be-empty to
41 enforce that the action printed nothing. With must-be-empty, Dune
42 will consider that the action failed if it printed something to its
43 standard output. The default is print.
44 --build-info
46 Show build information.
47 --error-reporting=VAL (absent=deterministic)
49 Controls when the build errors are reported. early - report errors
50 as soon as they are discovered. deterministic - report errors at
51 the end of the build in a deterministic order. twice - report each
52 error twice: once as soon as the error is discovered and then again
53 at the end of the build, in a deterministic order.
54 -f, --force
56 Force actions associated to aliases to be re-executed even if their
57 dependencies haven't changed.
58 --file-watcher=VAL (absent=automatic)
60 Mechanism to detect changes in the source. Automatic to make dune
61 run an external program to detect changes. Manual to notify dune
62 that files have changed manually."
63 -m, --makefile
65 Output the rules in Makefile syntax.
66 -o FILE
68 Output to a file instead of stdout.
69 --passive-watch-mode
71 Similar to [--watch], but only start a build when instructed
72 externally by an RPC.
73 -r, --recursive
75 Print all rules needed to build the transitive dependencies of the
76 given targets.
77 --react-to-insignificant-changes
79 react to insignificant file system changes; this is only useful for
80 benchmarking dune
81 --sandbox=VAL (absent DUNE_SANDBOX env)
83 Sandboxing mode to use by default. Some actions require a certain
84 sandboxing mode, so they will ignore this setting. The allowed
85 values are: none, symlink, copy, hardlink.
86 -w, --watch
88 Instead of terminating build after completion, wait continuously
89 for file changes.
90 --wait-for-filesystem-clock
92 Dune digest file contents for better incrementally. These digests
93 are themselves cached. In some cases, Dune needs to drop some
94 digest cache entries in order for things to be reliable. This
95 option makes Dune wait for the file system clock to advance so that
96 it doesn't need to drop anything. You should probably not care
97 about this option; it is mostly useful for Dune developers to make
98 Dune tests of the digest cache more reproducible.
99
101 These options are common to all commands.
102 --always-show-command-line
104 Always show the full command lines of programs executed by dune
105 --auto-promote
107 Automatically promote files. This is similar to running dune
108 promote after the build.
109 --build-dir=FILE (absent DUNE_BUILD_DIR env)
111 Specified build directory. _build if unspecified
112 --cache=VAL (absent DUNE_CACHE env)
114 Enable or disable Dune cache (either enabled or disabled). Default
115 is `disabled'.
116 --cache-check-probability=VAL (absent DUNE_CACHE_CHECK_PROBABILITY env)
118 Check build reproducibility by re-executing randomly chosen rules
119 and comparing their results with those stored in Dune cache. Note:
120 by increasing the probability of such checks you slow down the
121 build. The default probability is zero, i.e. no rules are checked.
122 --cache-storage-mode=VAL (absent DUNE_CACHE_STORAGE_MODE env)
124 Dune cache storage mode (one of auto, hardlink or copy). Default is
125 `auto'.
126 --config-file=FILE
128 Load this configuration file instead of the default one.
129 --debug-artifact-substitution
131 Print debugging info about artifact substitution
132 --debug-backtraces
134 Always print exception backtraces.
135 --debug-cache=VAL
137 Show debug messages on cache misses for the given cache layers.
138 Value is a comma-separated list of cache layer names. All available
139 cache layers: shared,workspace-local,fs.
140 --debug-dependency-path
142 In case of error, print the dependency path from the targets on the
143 command line to the rule that failed.
144 --debug-digests
146 Explain why Dune decides to re-digest some files
147 --debug-findlib
149 Debug the findlib sub-system.
150 --debug-load-dir
152 Print debugging info about directory loading
153 --debug-store-digest-preimage
155 Store digest preimage for all computed digests, so that it's
156 possible to reverse them later, for debugging. The digests are
157 stored in the shared cache (see --cache flag) as values, even if
158 cache is otherwise disabled. This should be used only for
159 debugging, since it's slow and it litters the shared cache.
160 --default-target=TARGET (absent=@@default)
162 Set the default target that when none is specified to dune build.
163 --diff-command=VAL (absent DUNE_DIFF_COMMAND env)
165 Shell command to use to diff files. Use - to disable printing the
166 diff.
167 --disable-promotion (absent DUNE_DISABLE_PROMOTION env)
169 Disable all promotion rules
170 --display=MODE
172 Control the display mode of Dune. See dune-config(5) for more
173 details.
174 --dump-memo-graph=FILE
176 Dumps the dependency graph to a file after the build is complete
177 --dump-memo-graph-format=FORMAT (absent=gexf)
179 File format to be used when dumping dependency graph
180 --dump-memo-graph-with-timing
182 With --dump-memo-graph, will re-run each cached node in the Memo
183 graph after building and include the runtime in the output. Since
184 all nodes contain a cached value, this will measure just the
185 runtime of each node
186 --help[=FMT] (default=auto)
188 Show this help in format FMT. The value FMT must be one of auto,
189 pager, groff or plain. With auto, the format is pager or plain
190 whenever the TERM env var is dumb or undefined.
191 --ignore-promoted-rules
193 Ignore rules with (mode promote), except ones with (only ...). The
194 variable %{ignoring_promoted_rules} in dune files reflects whether
195 this option was passed or not.
196 --instrument-with=BACKENDS (absent DUNE_INSTRUMENT_WITH env)
198 "Enable instrumentation by BACKENDS. BACKENDS is a comma-separated
199 list of library names, each one of which must declare an
200 instrumentation backend.
201 -j JOBS
203 Run no more than JOBS commands simultaneously.
204 --no-buffer
206 Do not buffer the output of commands executed by dune. By default
207 dune buffers the output of subcommands, in order to prevent
208 interleaving when multiple commands are executed in parallel.
209 However, this can be an issue when debugging long running tests.
210 With --no-buffer, commands have direct access to the terminal. Note
211 that as a result their output won't be captured in the log file.
212 You should use this option in conjunction with -j 1, to avoid
213 interleaving. Additionally you should use --verbose as well, to
214 make sure that commands are printed before they are being executed.
215 --no-config
217 Do not load the configuration file
218 --no-print-directory
220 Suppress "Entering directory" messages
221 --only-packages=PACKAGES
223 Ignore stanzas referring to a package that is not in PACKAGES.
224 PACKAGES is a comma-separated list of package names. Note that this
225 has the same effect as deleting the relevant stanzas from dune
226 files. It is mostly meant for releases. During development, it is
227 likely that what you want instead is to build a particular
228 <package>.install target.
229 -p PACKAGES, --for-release-of-packages=PACKAGES (required)
231 Shorthand for --release --only-packages PACKAGE. You must use this
232 option in your <package>.opam files, in order to build only what's
233 necessary when your project contains multiple packages as well as
234 getting reproducible builds.
235 --print-metrics
237 Print out various performance metrics after every build
238 --profile=VAL (absent DUNE_PROFILE env)
240 Select the build profile, for instance dev or release. The default
241 is dev.
242 --promote-install-files[=VAL] (default=true)
244 Promote the generated <package>.install files to the source tree
245 --release
247 Put dune into a reproducible release mode. This is in fact a
248 shorthand for --root . --ignore-promoted-rules --no-config
249 --profile release --always-show-command-line
250 --promote-install-files --default-target @install
251 --require-dune-project-file. You should use this option for release
252 builds. For instance, you must use this option in your
253 <package>.opam files. Except if you already use -p, as -p implies
254 this option.
255 --require-dune-project-file[=VAL] (default=true)
257 Fail if a dune-project file is missing.
258 --root=DIR
260 Use this directory as workspace root instead of guessing it. Note
261 that this option doesn't change the interpretation of targets given
262 on the command line. It is only intended for scripts.
263 --store-orig-source-dir (absent DUNE_STORE_ORIG_SOURCE_DIR env)
265 Store original source location in dune-package metadata
266 --terminal-persistence=MODE
268 Changes how the log of build results are displayed to the console
269 between rebuilds while in --watch mode. Supported modes: preserve,
270 clear-on-rebuild, clear-on-rebuild-and-flush-history.
271 --trace-file=FILE
273 Output trace data in catapult format (compatible with
274 chrome://tracing)
275 --verbose
277 Same as --display verbose
278 --version
280 Show version information.
281 --workspace=FILE (absent DUNE_WORKSPACE env)
283 Use this specific workspace file instead of looking it up.
284 -x VAL
286 Cross-compile using this toolchain.
287
289 Use `dune COMMAND --help' for help on a single command.
290
292 rules exits with the following status:
293 0 on success.
295 123 on indiscriminate errors reported on standard error.
297 124 on command line parsing errors.
299 125 on unexpected internal errors (bugs).
301
303 These environment variables affect the execution of rules:
304 DUNE_BUILD_DIR
306 Specified build directory. _build if unspecified
307 DUNE_CACHE
309 Enable or disable Dune cache (either enabled or disabled). Default
310 is `disabled'.
311 DUNE_CACHE_CHECK_PROBABILITY
313 Check build reproducibility by re-executing randomly chosen rules
314 and comparing their results with those stored in Dune cache. Note:
315 by increasing the probability of such checks you slow down the
316 build. The default probability is zero, i.e. no rules are checked.
317 DUNE_CACHE_STORAGE_MODE
319 Dune cache storage mode (one of auto, hardlink or copy). Default is
320 `auto'.
321 DUNE_DIFF_COMMAND
323 Shell command to use to diff files. Use - to disable printing the
324 diff.
325 DUNE_DISABLE_PROMOTION
327 Disable all promotion rules
328 DUNE_INSTRUMENT_WITH
330 "Enable instrumentation by BACKENDS. BACKENDS is a comma-separated
331 list of library names, each one of which must declare an
332 instrumentation backend.
333 DUNE_PROFILE
335 Build profile. dev if unspecified or release if -p is set.
336 DUNE_SANDBOX
338 Sandboxing mode to use by default. (see --sandbox)
339 DUNE_STORE_ORIG_SOURCE_DIR
341 Store original source location in dune-package metadata
342 DUNE_WORKSPACE
344 Use this specific workspace file instead of looking it up.
345
347 Check bug reports at https://github.com/ocaml/dune/issues
348
350 dune(1)
351Dune n/a DUNE-RULES(1)