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feature(boot): remove reliance on shell #7274

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merged 1 commit into from
Mar 11, 2023

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rgrinberg
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Previously, we'd run the shell to discover the number of processes by
using Unix.open_process_full. The shell isn't being used for anything,
so we switch to executing the process directly.

Signed-off-by: Rudi Grinberg me@rgrinberg.com

@rgrinberg rgrinberg force-pushed the ps/rr/feature_boot___remove_reliance_on_shell branch from 437642d to 81a96f5 Compare March 11, 2023 01:00
@rgrinberg rgrinberg requested a review from Alizter March 11, 2023 01:01
@rgrinberg rgrinberg added this to the 3.8.0 milestone Mar 11, 2023
@rgrinberg rgrinberg force-pushed the ps/rr/feature_boot___remove_reliance_on_shell branch from 81a96f5 to 846a1f9 Compare March 11, 2023 01:03
let path = dir ^/ prog in
let args = Array.of_list @@ (path :: args) in
let ic, oc, ec =
Unix.open_process_args_full path args (Unix.environment ())
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should this be the empty environment again, if we know the path of the program we're calling?

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I think clearing the path is generally unintuitive and I'd rather not do it unless there's a good reason. I have no idea how any of these programs I'm running work and if they could be affected by environment variables. It would be safer to just let them pass through.

boot/duneboot.ml Outdated Show resolved Hide resolved
CHANGES.md Outdated
Comment on lines 4 to 6
- Remove reliance on shell for bootstrapping. Previously, we'd use the shell to
get the number of processors. (#7274, @rgrinberg)

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Maybe just merge both our entries.

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Why? One is a general improvement and the other is a bug fix. If they are merged, it would only obfuscate it for readers.

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I will test after Antonio's suggestion is considered.

@rgrinberg rgrinberg force-pushed the ps/rr/feature_boot___remove_reliance_on_shell branch from 846a1f9 to 64cde9f Compare March 11, 2023 01:41
Previously, we'd run the shell to discover the number of processes by
using `Unix.open_process_full`. The shell isn't being used for anything,
so we switch to executing the process directly.

Signed-off-by: Rudi Grinberg <me@rgrinberg.com>

<!-- ps-id: f2284477-89a3-4579-baca-cd4c9ff2f26d -->
@rgrinberg rgrinberg force-pushed the ps/rr/feature_boot___remove_reliance_on_shell branch from 64cde9f to a1658c8 Compare March 11, 2023 01:42
@Alizter
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Alizter commented Mar 11, 2023

Works for me

@rgrinberg rgrinberg merged commit 57c8e78 into main Mar 11, 2023
@rgrinberg rgrinberg deleted the ps/rr/feature_boot___remove_reliance_on_shell branch March 11, 2023 02:39
emillon added a commit to emillon/opam-repository that referenced this pull request Apr 18, 2023
CHANGES:

- When a rule's action is interrupted, delete any leftover directory targets.
  This is consistent with how we treat file targets. (@rgrinberg, 7564)

- Fix plugin loading with findlib. The functionality was broken in 3.7.0.
  (ocaml/dune#7556, @anmonteiro)

- Introduce a `public_headers` field on libraries. This field is like
  `install_c_headers`, but it allows to choose the extension and choose the
  paths for the installed headers. (ocaml/dune#7512, @rgrinberg)

- Load the host context `findlib.conf` when cross-compiling (ocaml/dune#7428, fixes
  ocaml/dune#1701, @rgrinberg, @anmonteiro)

- Resolve `ppx_runtime_libraries` in the target context when cross compiling
  (ocaml/dune#7450, fixes ocaml/dune#2794, @anmonteiro)

- Use `$PKG_CONFIG`, when set, to find the `pkg-config` binary  (ocaml/dune#7469, fixes
  ocaml/dune#2572, @anmonteiro)

- Preliminary support for Coq compiled intefaces (`.vos` files) enabled via
  `(mode vos)` in `coq.theory` stanzas. This can be used in combination with
  `dune coq top` to obtain fast re-building of dependencies (with no checking
  of proofs) prior to stepping into a file. (ocaml/dune#7406, @rlepigre)

- Fix dune crashing on MacOS in watch mode whenever `$PATH` contains `$PWD`
  (ocaml/dune#7441, fixes ocaml/dune#6907, @rgrinberg)

- Fix `dune install` when cross compiling (ocaml/dune#7410, fixes ocaml/dune#6191, @anmonteiro,
  @rizo)

- Find `pps` dependencies in the host context when cross-compiling,  (ocaml/dune#7410,
  fixes ocaml/dune#4156, @anmonteiro)

- Dune in watch mode no longer builds concurrent rules in serial (ocaml/dune#7395
  @rgrinberg, @jchavarri)

- `dune coq top` now correctly respects the project root when called from a
  subdirectory. However, absolute filenames passed to `dune coq top` are no
  longer supported (due to being buggy) (ocaml/dune#7357, fixes ocaml/dune#7344, @rlepigre and
  @Alizter)

- Added a `--no-build` option to `dune coq top` for avoiding rebuilds (ocaml/dune#7380,
  fixes ocaml/dune#7355, @Alizter)

- RPC: Ignore SIGPIPE when clients suddenly disconnect (ocaml/dune#7299, ocaml/dune#7319, fixes
  ocaml/dune#6879, @rgrinberg)

- Always clean up the UI on exit. (ocaml/dune#7271, fixes ocaml/dune#7142 @rgrinberg)

- Bootstrap: remove reliance on shell. Previously, we'd use the shell to get
  the number of processors. (ocaml/dune#7274, @rgrinberg)

- Bootstrap: correctly detect the number of processors by allowing `nproc` to be
  looked up in `$PATH` (ocaml/dune#7272, @Alizter)

- Speed up file copying on macos by using `clonefile` when available
  (@rgrinberg, ocaml/dune#7210)

- Adds support for loading plugins in toplevels (ocaml/dune#6082, fixes ocaml/dune#6081,
  @ivg, @richardlford)

- Support commands that output 8-bit and 24-bit colors in the terminal (ocaml/dune#7188,
  @Alizter)

- Speed up rule generation for libraries and executables with many modules
  (ocaml/dune#7187, @jchavarri)

- Add `--watch-exclusions` to Dune build options (ocaml/dune#7216, @jonahbeckford)

- Do not re-render UI on every frame if the UI doesn't change (ocaml/dune#7186, fix
  ocaml/dune#7184, @rgrinberg)

- Make coq_db creation in scope lazy (@ejgallego, ocaml/dune#7133)

- Non-user proccesses such as version control or config checking are now run
  silently. (ocaml/dune#6994, fixes ocaml/dune#4066, @Alizter)

- Add the `--display-separate-messages` flag to separate the error messages
  produced by commands with a blank line. (ocaml/dune#6823, fixes ocaml/dune#6158, @esope)

- Accept the Ordered Set Language for the `modes` field in `library` stanzas
  (ocaml/dune#6611, @anmonteiro).

- dune install now respects --display quiet mode (ocaml/dune#7116, fixes ocaml/dune#4573, fixes
  ocaml/dune#7106, @Alizter)

- Stub shared libraries (dllXXX_stubs.so) in Dune-installed libraries could not
  be used as dependencies of libraries in the workspace (eg when compiling to
  bytecode and/or Javascript).  This is now fixed. (ocaml/dune#7151, @nojb)

- Allow the main module of a library with `(stdlib ...)` to depend on other
  libraries (ocaml/dune#7154, @anmonteiro).

- Bytecode executables built for JSOO are linked with `-noautolink` and no
  longer depend on the shared stubs of their dependent libraries (ocaml/dune#7156, @nojb)

- Added a new user action `(concurrent )` which is like `(progn )` but runs the
  actions concurrently. (ocaml/dune#6933, @Alizter)

- Allow `(stdlib ...)` to be used with `(wrapped false)` in library stanzas
  (ocaml/dune#7139, @anmonteiro).

- Allow parallel execution of inline tests partitions (ocaml/dune#7012, @hhugo)

- Support `(link_flags ...)` in `(cinaps ...)` stanza. (ocaml/dune#7423, fixes ocaml/dune#7416,
  @nojb)

- Allow `(package ...)` in any position within `(rule ...)` stanza (ocaml/dune#7445,
  @Leonidas-from-XIV)

- Always include `opam` files in the generated `.install` file. Previously, it
  would not be included whenever `(generate_opam_files true)` was set and the
  `.install` file wasn't yet generated. (ocaml/dune#7547, @rgrinberg)
emillon added a commit to emillon/opam-repository that referenced this pull request May 23, 2023
CHANGES:

- Fix string quoting in the json file written by `--trace-file` (ocaml/dune#7773,
  @rleshchinskiy)

- Read `pkg-config` arguments from the `PKG_CONFIG_ARGN` environment variable
  (ocaml/dune#1492, ocaml/dune#7734, @anmonteiro)

- Correctly set `MANPATH` in `dune exec`. Previously, we would use the `bin/`
  directory of the context. (ocaml/dune#7655, @rgrinberg)

- Allow overriding the `ocaml` binary with findlib configuration (ocaml/dune#7648,
  @rgrinberg)

- merlin: ignore instrumentation settings for preprocessing. (ocaml/dune#7606, fixes
  ocaml/dune#7465, @Alizter)

- When a rule's action is interrupted, delete any leftover directory targets.
  This is consistent with how we treat file targets. (ocaml/dune#7564, @rgrinberg)

- Fix plugin loading with findlib. The functionality was broken in 3.7.0.
  (ocaml/dune#7556, @anmonteiro)

- Introduce a `public_headers` field on libraries. This field is like
  `install_c_headers`, but it allows to choose the extension and choose the
  paths for the installed headers. (ocaml/dune#7512, @rgrinberg)

- Load the host context `findlib.conf` when cross-compiling (ocaml/dune#7428, fixes
  ocaml/dune#1701, @rgrinberg, @anmonteiro)

- Add a `coqdoc_flags` field to the `coq.theory` stanza allowing the user to
  pass extra arguments to `coqdoc`. (ocaml/dune#7676, fixes ocaml/dune#7954 @Alizter)

- Resolve `ppx_runtime_libraries` in the target context when cross compiling
  (ocaml/dune#7450, fixes ocaml/dune#2794, @anmonteiro)

- Use `$PKG_CONFIG`, when set, to find the `pkg-config` binary  (ocaml/dune#7469, fixes
  ocaml/dune#2572, @anmonteiro)

- Modules that were declared in `(modules_without_implementation)`,
  `(private_modules)` or `(virtual_modules)` but not declared in `(modules)`
  will cause Dune to emit a warning which will become an error in 3.9. (ocaml/dune#7608,
  fixes ocaml/dune#7026, @Alizter)

- Preliminary support for Coq compiled intefaces (`.vos` files) enabled via
  `(mode vos)` in `coq.theory` stanzas. This can be used in combination with
  `dune coq top` to obtain fast re-building of dependencies (with no checking
  of proofs) prior to stepping into a file. (ocaml/dune#7406, @rlepigre)

- Fix dune crashing on MacOS in watch mode whenever `$PATH` contains `$PWD`
  (ocaml/dune#7441, fixes ocaml/dune#6907, @rgrinberg)

- Fix `dune install` when cross compiling (ocaml/dune#7410, fixes ocaml/dune#6191, @anmonteiro,
  @rizo)

- Find `pps` dependencies in the host context when cross-compiling,  (ocaml/dune#7410,
  fixes ocaml/dune#4156, @anmonteiro)

- Dune in watch mode no longer builds concurrent rules in serial (ocaml/dune#7395
  @rgrinberg, @jchavarri)

- Dune can now detect Coq theories from outside the workspace. This allows for
  composition with installed theories (not necessarily installed with Dune).
  (ocaml/dune#7047, @Alizter, @ejgallego)

- `dune coq top` now correctly respects the project root when called from a
  subdirectory. However, absolute filenames passed to `dune coq top` are no
  longer supported (due to being buggy) (ocaml/dune#7357, fixes ocaml/dune#7344, @rlepigre and
  @Alizter)

- Added a `--no-build` option to `dune coq top` for avoiding rebuilds (ocaml/dune#7380,
  fixes ocaml/dune#7355, @Alizter)

- RPC: Ignore SIGPIPE when clients suddenly disconnect (ocaml/dune#7299, ocaml/dune#7319, fixes
  ocaml/dune#6879, @rgrinberg)

- Always clean up the UI on exit. (ocaml/dune#7271, fixes ocaml/dune#7142 @rgrinberg)

- Bootstrap: remove reliance on shell. Previously, we'd use the shell to get
  the number of processors. (ocaml/dune#7274, @rgrinberg)

- Bootstrap: correctly detect the number of processors by allowing `nproc` to be
  looked up in `$PATH` (ocaml/dune#7272, @Alizter)

- Speed up file copying on macos by using `clonefile` when available
  (@rgrinberg, ocaml/dune#7210)

- Adds support for loading plugins in toplevels (ocaml/dune#6082, fixes ocaml/dune#6081,
  @ivg, @richardlford)

- Support commands that output 8-bit and 24-bit colors in the terminal (ocaml/dune#7188,
  @Alizter)

- Speed up rule generation for libraries and executables with many modules
  (ocaml/dune#7187, @jchavarri)

- Add `--watch-exclusions` to Dune build options (ocaml/dune#7216, @jonahbeckford)

- Do not re-render UI on every frame if the UI doesn't change (ocaml/dune#7186, fix
  ocaml/dune#7184, @rgrinberg)

- Make coq_db creation in scope lazy (@ejgallego, ocaml/dune#7133)

- Non-user proccesses such as version control or config checking are now run
  silently. (ocaml/dune#6994, fixes ocaml/dune#4066, @Alizter)

- Add the `--display-separate-messages` flag to separate the error messages
  produced by commands with a blank line. (ocaml/dune#6823, fixes ocaml/dune#6158, @esope)

- Accept the Ordered Set Language for the `modes` field in `library` stanzas
  (ocaml/dune#6611, @anmonteiro).

- dune install now respects --display quiet mode (ocaml/dune#7116, fixes ocaml/dune#4573, fixes
  ocaml/dune#7106, @Alizter)

- Stub shared libraries (dllXXX_stubs.so) in Dune-installed libraries could not
  be used as dependencies of libraries in the workspace (eg when compiling to
  bytecode and/or Javascript).  This is now fixed. (ocaml/dune#7151, @nojb)

- Allow the main module of a library with `(stdlib ...)` to depend on other
  libraries (ocaml/dune#7154, @anmonteiro).

- Bytecode executables built for JSOO are linked with `-noautolink` and no
  longer depend on the shared stubs of their dependent libraries (ocaml/dune#7156, @nojb)

- Added a new user action `(concurrent )` which is like `(progn )` but runs the
  actions concurrently. (ocaml/dune#6933, @Alizter)

- Allow `(stdlib ...)` to be used with `(wrapped false)` in library stanzas
  (ocaml/dune#7139, @anmonteiro).

- Allow parallel execution of inline tests partitions (ocaml/dune#7012, @hhugo)

- Support `(link_flags ...)` in `(cinaps ...)` stanza. (ocaml/dune#7423, fixes ocaml/dune#7416,
  @nojb)

- Allow `(package ...)` in any position within `(rule ...)` stanza (ocaml/dune#7445,
  @Leonidas-from-XIV)

- Always include `opam` files in the generated `.install` file. Previously, it
  would not be included whenever `(generate_opam_files true)` was set and the
  `.install` file wasn't yet generated. (ocaml/dune#7547, @rgrinberg)

- Fix regression where Merlin was unable to handle filenames with uppercase
  letters under Windows. (ocaml/dune#7577, @nojb)

- On nix+macos, pass `-f` to the codesign hook to avoid errors when the binary
  is already signed (ocaml/dune#7183, fixes ocaml/dune#6265, @greedy)

- Fix bug where RPC clients built with dune-rpc-lwt would crash when closing
  their connection to the server (ocaml/dune#7581, @gridbugs)

- Introduce mdx stanza 0.4 requiring mdx >= 2.3.0 which updates the default
  list of files to include `*.mld` files (ocaml/dune#7582, @Leonidas-from-XIV)

- Fix RPC server on Windows (used for OCaml-LSP). (ocaml/dune#7666, @nojb)

- Coq language versions less 0.8 are deprecated, and will be removed
  in an upcoming Dune version. All users are required to migrate to
  `(coq lang 0.8)` which provides the right semantics for theories
  that have been globally installed, such as those coming from opam
  (@ejgallego, @Alizter)

- Bump minimum version of the dune language for the melange syntax extension
  from 3.7 to 3.8 (ocaml/dune#7665, @jchavarri)
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3 participants