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(*
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* Copyright (c) 2017 - present Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*)
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open! IStd
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module CLOpt = CommandLineOption
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module L = Logging
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let infer_profile_name = "infer-capture"
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let infer_profile =
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( lazy
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(* indented so that users may copy it into their projects if they want to *)
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(Printf.sprintf
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{|
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<profile>
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<id>%s</id>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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<configuration>
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<compilerId>javac</compilerId>
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<forceJavacCompilerUse>true</forceJavacCompilerUse>
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<fork>true</fork>
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<executable>%s</executable>
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</configuration>
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</plugin>
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</plugins>
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</build>
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</profile>|}
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infer_profile_name (Config.bin_dir ^/ CLOpt.infer_exe_name)) )
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let pom_worklist = ref [CLOpt.init_work_dir]
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let add_infer_profile_to_xml dir maven_xml infer_xml =
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let copy xml_in xml_out = Xmlm.output xml_out (Xmlm.input xml_in) in
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(* whether we ever found a <profiles> tag *)
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let found_profiles_tag = ref false in
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(* whether there already is an infer profile --this will always be true at the end *)
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let found_infer_profile = ref false in
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(* Process an xml document from the root. Assume the Dtd has already been handled. *)
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let rec process_root xml_in xml_out = process xml_in xml_out []
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and insert_infer_profile xml_out =
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let infer_xml = Xmlm.make_input ~strip:false (`String (0, Lazy.force infer_profile)) in
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Xmlm.input infer_xml |> ignore ;
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(* skip dummy DTD *)
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process_root infer_xml xml_out
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and process xml_in xml_out tag_stack =
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let elt_in = Xmlm.input xml_in in
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match elt_in with
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| `El_start tag
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-> Xmlm.output xml_out elt_in ;
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let tag_name = snd (fst tag) in
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if String.equal tag_name "profiles" then found_profiles_tag := true ;
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process xml_in xml_out (tag_name :: tag_stack)
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| `El_end
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-> (
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( match tag_stack with
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| "profiles" :: _ when not !found_infer_profile
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-> (* found the </profiles> tag but no infer profile found, add one *)
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insert_infer_profile xml_out
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| [_] when not !found_profiles_tag
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-> (* closing the root tag but no <profiles> tag found, add
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<profiles>[infer profile]</profiles> *)
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Xmlm.output xml_out (`El_start (("", "profiles"), [])) ;
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found_profiles_tag := true ;
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(* do not add <profiles> again *)
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insert_infer_profile xml_out ;
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Xmlm.output xml_out `El_end
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| _
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-> () ) ;
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Xmlm.output xml_out elt_in ;
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match tag_stack with
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| _ :: parent :: tl
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-> process xml_in xml_out (parent :: tl)
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| [_]
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-> (* closing the first tag, we're done *)
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()
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| []
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-> L.(die UserError) "ill-formed xml" )
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| `Data data
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-> Xmlm.output xml_out elt_in ;
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( match tag_stack with
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| "id" :: "profile" :: "profiles" :: _ when String.equal data infer_profile_name
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-> L.(debug Capture Quiet) "Found infer profile, not adding one@." ;
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found_infer_profile := true
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| "module" :: "modules" :: _
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-> let abs_data = dir ^/ data in
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L.(debug Capture Quiet) "Adding maven module %s@." abs_data ;
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pom_worklist := abs_data :: !pom_worklist
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| _
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-> () ) ;
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process xml_in xml_out tag_stack
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| `Dtd _
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-> (* already processed the Dtd node *)
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assert false
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in
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let process_document () =
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(* process `Dtd; if present, it is always the first node *)
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( match Xmlm.peek maven_xml with
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| `Dtd _
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-> copy maven_xml infer_xml
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| _
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-> Xmlm.output infer_xml (`Dtd None) ) ;
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process_root maven_xml infer_xml ;
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Xmlm.eoi maven_xml |> ignore ;
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if not (Xmlm.eoi maven_xml) then L.(die UserError) "More than one document"
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in
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process_document ()
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let add_infer_profile mvn_pom infer_pom =
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let ic = In_channel.create mvn_pom in
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let with_oc out_chan =
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let with_ic () =
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let xml_in =
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Xmlm.make_input ~strip:false (`Channel ic) ~ns:(fun ns -> Some ns)
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(* be generous with namespaces *)
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in
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let xml_out =
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Xmlm.make_output ~nl:true (`Channel out_chan) ~ns_prefix:(fun prefix -> Some prefix)
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(* be generous with namespaces *)
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in
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add_infer_profile_to_xml (Filename.dirname mvn_pom) xml_in xml_out
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in
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protect ~f:with_ic ~finally:(fun () -> In_channel.close ic)
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in
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try Utils.with_file_out infer_pom ~f:with_oc
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with Xmlm.Error ((line, col), error) ->
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L.die ExternalError "%s:%d:%d: ERROR: %s" mvn_pom line col (Xmlm.error_message error)
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let add_profile_to_pom_in_directory dir =
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(* Even though there is a "-f" command-line arguments to change the config file Maven reads from,
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this is unreliable and Maven pretty much always reads from "pom.xml" anyway. So, we replace
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"pom.xml" with a version holding a special profile for infer capture, then put the original
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back in place. *)
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let maven_pom_path = dir ^/ "pom.xml" in
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let saved_pom_path = dir ^/ "pom.xml.infer-orig" in
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let infer_pom_path = dir ^/ "pom.xml.infer" in
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add_infer_profile maven_pom_path infer_pom_path ;
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Unix.rename ~src:maven_pom_path ~dst:saved_pom_path ;
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Epilogues.register
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~f:(fun () -> Unix.rename ~src:saved_pom_path ~dst:maven_pom_path)
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"restoring Maven's pom.xml to its original state" ;
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Unix.rename ~src:infer_pom_path ~dst:maven_pom_path ;
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if Config.debug_mode || Config.stats_mode then
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Epilogues.register
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~f:(fun () -> Unix.rename ~src:maven_pom_path ~dst:infer_pom_path)
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"saving infer's pom.xml"
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let capture ~prog ~args =
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while not (List.is_empty !pom_worklist) do
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let pom = List.hd_exn !pom_worklist in
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pom_worklist := List.tl_exn !pom_worklist ;
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add_profile_to_pom_in_directory pom
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done ;
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let extra_args = ["-P"; infer_profile_name] in
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let capture_args = args @ extra_args in
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L.(debug Capture Quiet)
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"Running maven capture:@\n%s %s@." prog
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(String.concat ~sep:" " (List.map ~f:(Printf.sprintf "'%s'") capture_args)) ;
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(* let children infer processes know that they are spawned by Maven *)
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Unix.fork_exec ~prog ~argv:(prog :: capture_args) ~env:Config.env_inside_maven () |> Unix.waitpid
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|> function
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| Ok ()
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-> ()
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| Error _ as status
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-> L.(die UserError)
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"*** Maven command failed:@\n*** %s@\n*** %s@\n"
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(String.concat ~sep:" " (prog :: capture_args))
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(Unix.Exit_or_signal.to_string_hum status)
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