1DUNE-PRINTENV(1) Dune Manual DUNE-PRINTENV(1)
2
6 dune-printenv - Print the environment of a directory
7
9 dune printenv [OPTION]… [PATH]
10
12 dune printenv DIR prints the environment of a directory
13
15 --action-stderr-on-success=VAL
16 Same as --action-stdout-on-success but for the standard output for
17 error messages. A good default for large mono-repositories is
18 --action-stdout-on-success=swallow
19 --action-stderr-on-success=must-be-empty. This ensures that a
20 successful build has a "clean" empty output.
21 --action-stdout-on-success=VAL
23 Specify how to deal with the standard output of actions when they
24 succeed. Possible values are: print to just print it to Dune's
25 output, swallow to completely ignore it and must-be-empty to
26 enforce that the action printed nothing. With must-be-empty, Dune
27 will consider that the action failed if it printed something to its
28 standard output. The default is print.
29 --build-info
31 Show build information.
32 --error-reporting=VAL (absent=deterministic)
34 Controls when the build errors are reported. early - report errors
35 as soon as they are discovered. deterministic - report errors at
36 the end of the build in a deterministic order. twice - report each
37 error twice: once as soon as the error is discovered and then again
38 at the end of the build, in a deterministic order.
39 -f, --force
41 Force actions associated to aliases to be re-executed even if their
42 dependencies haven't changed.
43 --field=FIELD
45 Only print this field. This option can be repeated multiple times
46 to print multiple fields.
47 --file-watcher=VAL (absent=automatic)
49 Mechanism to detect changes in the source. Automatic to make dune
50 run an external program to detect changes. Manual to notify dune
51 that files have changed manually."
52 --passive-watch-mode
54 Similar to [--watch], but only start a build when instructed
55 externally by an RPC.
56 --react-to-insignificant-changes
58 react to insignificant file system changes; this is only useful for
59 benchmarking dune
60 --sandbox=VAL (absent DUNE_SANDBOX env)
62 Sandboxing mode to use by default. Some actions require a certain
63 sandboxing mode, so they will ignore this setting. The allowed
64 values are: none, symlink, copy, hardlink.
65 -w, --watch
67 Instead of terminating build after completion, wait continuously
68 for file changes.
69 --wait-for-filesystem-clock
71 Dune digest file contents for better incrementally. These digests
72 are themselves cached. In some cases, Dune needs to drop some
73 digest cache entries in order for things to be reliable. This
74 option makes Dune wait for the file system clock to advance so that
75 it doesn't need to drop anything. You should probably not care
76 about this option; it is mostly useful for Dune developers to make
77 Dune tests of the digest cache more reproducible.
78
80 These options are common to all commands.
81 --always-show-command-line
83 Always show the full command lines of programs executed by dune
84 --auto-promote
86 Automatically promote files. This is similar to running dune
87 promote after the build.
88 --build-dir=FILE (absent DUNE_BUILD_DIR env)
90 Specified build directory. _build if unspecified
91 --cache=VAL (absent DUNE_CACHE env)
93 Enable or disable Dune cache (either enabled or disabled). Default
94 is `disabled'.
95 --cache-check-probability=VAL (absent DUNE_CACHE_CHECK_PROBABILITY env)
97 Check build reproducibility by re-executing randomly chosen rules
98 and comparing their results with those stored in Dune cache. Note:
99 by increasing the probability of such checks you slow down the
100 build. The default probability is zero, i.e. no rules are checked.
101 --cache-storage-mode=VAL (absent DUNE_CACHE_STORAGE_MODE env)
103 Dune cache storage mode (one of auto, hardlink or copy). Default is
104 `auto'.
105 --config-file=FILE
107 Load this configuration file instead of the default one.
108 --debug-artifact-substitution
110 Print debugging info about artifact substitution
111 --debug-backtraces
113 Always print exception backtraces.
114 --debug-cache=VAL
116 Show debug messages on cache misses for the given cache layers.
117 Value is a comma-separated list of cache layer names. All available
118 cache layers: shared,workspace-local,fs.
119 --debug-dependency-path
121 In case of error, print the dependency path from the targets on the
122 command line to the rule that failed.
123 --debug-digests
125 Explain why Dune decides to re-digest some files
126 --debug-load-dir
128 Print debugging info about directory loading
129 --debug-store-digest-preimage
131 Store digest preimage for all computed digests, so that it's
132 possible to reverse them later, for debugging. The digests are
133 stored in the shared cache (see --cache flag) as values, even if
134 cache is otherwise disabled. This should be used only for
135 debugging, since it's slow and it litters the shared cache.
136 --default-target=TARGET (absent=@@default)
138 Set the default target that when none is specified to dune build.
139 --diff-command=VAL (absent DUNE_DIFF_COMMAND env)
141 Shell command to use to diff files. Use - to disable printing the
142 diff.
143 --disable-promotion (absent DUNE_DISABLE_PROMOTION env)
145 Disable all promotion rules
146 --display=MODE
148 Control the display mode of Dune. See dune-config(5) for more
149 details. Valid values for this option are One of progress, verbose,
150 short or quiet
151 --dump-memo-graph=FILE
153 Dumps the dependency graph to a file after the build is complete
154 --dump-memo-graph-format=FORMAT (absent=gexf)
156 File format to be used when dumping dependency graph
157 --dump-memo-graph-with-timing
159 With --dump-memo-graph, will re-run each cached node in the Memo
160 graph after building and include the runtime in the output. Since
161 all nodes contain a cached value, this will measure just the
162 runtime of each node
163 --help[=FMT] (default=auto)
165 Show this help in format FMT. The value FMT must be one of auto,
166 pager, groff or plain. With auto, the format is pager or plain
167 whenever the TERM env var is dumb or undefined.
168 --ignore-promoted-rules
170 Ignore rules with (mode promote), except ones with (only ...). The
171 variable %{ignoring_promoted_rules} in dune files reflects whether
172 this option was passed or not.
173 --instrument-with=BACKENDS (absent DUNE_INSTRUMENT_WITH env)
175 "Enable instrumentation by BACKENDS. BACKENDS is a comma-separated
176 list of library names, each one of which must declare an
177 instrumentation backend.
178 -j JOBS
180 Run no more than JOBS commands simultaneously.
181 --no-buffer
183 Do not buffer the output of commands executed by dune. By default
184 dune buffers the output of subcommands, in order to prevent
185 interleaving when multiple commands are executed in parallel.
186 However, this can be an issue when debugging long running tests.
187 With --no-buffer, commands have direct access to the terminal. Note
188 that as a result their output won't be captured in the log file.
189 You should use this option in conjunction with -j 1, to avoid
190 interleaving. Additionally you should use --verbose as well, to
191 make sure that commands are printed before they are being executed.
192 --no-config
194 Do not load the configuration file
195 --no-print-directory
197 Suppress "Entering directory" messages
198 --only-packages=PACKAGES
200 Ignore stanzas referring to a package that is not in PACKAGES.
201 PACKAGES is a comma-separated list of package names. Note that this
202 has the same effect as deleting the relevant stanzas from dune
203 files. It is mostly meant for releases. During development, it is
204 likely that what you want instead is to build a particular
205 <package>.install target.
206 -p PACKAGES, --for-release-of-packages=PACKAGES (required)
208 Shorthand for --release --only-packages PACKAGE. You must use this
209 option in your <package>.opam files, in order to build only what's
210 necessary when your project contains multiple packages as well as
211 getting reproducible builds.
212 --print-metrics
214 Print out various performance metrics after every build
215 --profile=VAL (absent DUNE_PROFILE env)
217 Select the build profile, for instance dev or release. The default
218 is dev.
219 --promote-install-files[=VAL] (default=true)
221 Promote the generated <package>.install files to the source tree
222 --release
224 Put dune into a reproducible release mode. This is in fact a
225 shorthand for --root . --ignore-promoted-rules --no-config
226 --profile release --always-show-command-line
227 --promote-install-files --default-target @install
228 --require-dune-project-file. You should use this option for release
229 builds. For instance, you must use this option in your
230 <package>.opam files. Except if you already use -p, as -p implies
231 this option.
232 --require-dune-project-file[=VAL] (default=true)
234 Fail if a dune-project file is missing.
235 --root=DIR
237 Use this directory as workspace root instead of guessing it. Note
238 that this option doesn't change the interpretation of targets given
239 on the command line. It is only intended for scripts.
240 --store-orig-source-dir (absent DUNE_STORE_ORIG_SOURCE_DIR env)
242 Store original source location in dune-package metadata
243 --terminal-persistence=MODE
245 Changes how the log of build results are displayed to the console
246 between rebuilds while in --watch mode. Supported modes: preserve,
247 clear-on-rebuild, clear-on-rebuild-and-flush-history.
248 --trace-file=FILE
250 Output trace data in catapult format (compatible with
251 chrome://tracing)
252 --verbose
254 Same as --display verbose
255 --version
257 Show version information.
258 --workspace=FILE (absent DUNE_WORKSPACE env)
260 Use this specific workspace file instead of looking it up.
261 -x VAL
263 Cross-compile using this toolchain.
264
266 Use `dune COMMAND --help' for help on a single command.
267
269 printenv exits with the following status:
270 0 on success.
272 123 on indiscriminate errors reported on standard error.
274 124 on command line parsing errors.
276 125 on unexpected internal errors (bugs).
278
280 These environment variables affect the execution of printenv:
281 DUNE_BUILD_DIR
283 Specified build directory. _build if unspecified
284 DUNE_CACHE
286 Enable or disable Dune cache (either enabled or disabled). Default
287 is `disabled'.
288 DUNE_CACHE_CHECK_PROBABILITY
290 Check build reproducibility by re-executing randomly chosen rules
291 and comparing their results with those stored in Dune cache. Note:
292 by increasing the probability of such checks you slow down the
293 build. The default probability is zero, i.e. no rules are checked.
294 DUNE_CACHE_STORAGE_MODE
296 Dune cache storage mode (one of auto, hardlink or copy). Default is
297 `auto'.
298 DUNE_DIFF_COMMAND
300 Shell command to use to diff files. Use - to disable printing the
301 diff.
302 DUNE_DISABLE_PROMOTION
304 Disable all promotion rules
305 DUNE_INSTRUMENT_WITH
307 "Enable instrumentation by BACKENDS. BACKENDS is a comma-separated
308 list of library names, each one of which must declare an
309 instrumentation backend.
310 DUNE_PROFILE
312 Build profile. dev if unspecified or release if -p is set.
313 DUNE_SANDBOX
315 Sandboxing mode to use by default. (see --sandbox)
316 DUNE_STORE_ORIG_SOURCE_DIR
318 Store original source location in dune-package metadata
319 DUNE_WORKSPACE
321 Use this specific workspace file instead of looking it up.
322
324 Check bug reports at https://github.com/ocaml/dune/issues
325
327 dune(1)
328Dune n/a DUNE-PRINTENV(1)