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opamFile.ml
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(**************************************************************************)
(* *)
(* Copyright 2012-2013 OCamlPro *)
(* Copyright 2012 INRIA *)
(* *)
(* All rights reserved.This file is distributed under the terms of the *)
(* GNU Lesser General Public License version 3.0 with linking *)
(* exception. *)
(* *)
(* OPAM is distributed in the hope that it will be useful, but WITHOUT *)
(* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY *)
(* or FITNESS FOR A PARTICULAR PURPOSE.See the GNU General Public *)
(* License for more details. *)
(* *)
(**************************************************************************)
open OpamTypes
open OpamTypesBase
open OpamMisc.OP
module X = struct
module Lines = struct
(* Lines of space separated words *)
type t = string list list
let empty = []
let internal = "lines"
let find_escapes s len =
let rec aux acc i =
if i < 0 then acc else
let acc =
match s.[i] with
| '\\' | ' ' | '\t' | '\n' ->
let esc,count = acc in
i::esc, count + 1
| _ -> acc in
aux acc (i-1) in
aux ([],0) (len - 1)
let escape_spaces str =
let len = String.length str in
match find_escapes str len with
| [], _ -> str
| escapes, n ->
let buf = Bytes.create (len + n) in
let rec aux i = function
| ofs1::(ofs2::_ as r) ->
Bytes.blit_string str ofs1 buf (ofs1+i) (ofs2-ofs1);
Bytes.set buf (ofs2+i) '\\';
aux (i+1) r
| [ofs] ->
Bytes.blit_string str ofs buf (ofs+i) (len-ofs);
buf
| [] -> assert false
in
Bytes.to_string (aux 0 (0::escapes))
let of_channel (_:filename) ic =
OpamLineLexer.main (Lexing.from_channel ic)
let to_string (_:filename) (lines: t) =
let buf = Buffer.create 1024 in
List.iter (fun l ->
(match l with
| [] -> ()
| w::r ->
Buffer.add_string buf (escape_spaces w);
List.iter (fun w ->
Buffer.add_char buf ' ';
Buffer.add_string buf (escape_spaces w))
r);
Buffer.add_string buf "\n"
) lines;
Buffer.contents buf
end
module Syntax = struct
type t = file
let of_channel (filename:filename) (ic:in_channel) =
let lexbuf = Lexing.from_channel ic in
let filename = OpamFilename.to_string filename in
lexbuf.Lexing.lex_curr_p <- { lexbuf.Lexing.lex_curr_p with
Lexing.pos_fname = filename };
OpamParser.main OpamLexer.token lexbuf filename
let to_string (t: t) =
OpamFormat.string_of_file ~simplify:true t
let s_opam_version = "opam-version"
let check_opam_version =
let already_warned = ref false in
fun ?(allow_major=false) f v ->
let diff_full = OpamVersion.(compare current v) in
if diff_full >= 0 then true else
let diff_major = OpamVersion.(compare (major current) (major v)) in
if !OpamGlobals.strict then
OpamGlobals.error_and_exit
"Strict mode: %s refers to OPAM %s, this is %s."
f.file_name (OpamVersion.to_string v) OpamVersion.(to_string current);
if diff_major < 0 && not allow_major then
OpamFormat.bad_format
~pos:OpamFormat.(assoc f.file_contents s_opam_version value_pos)
"Can't read OPAM %s files yet, this is OPAM %s."
(OpamVersion.to_string v) OpamVersion.(to_string current);
if not (!already_warned) then
OpamGlobals.note
"File %s is written for OPAM %s, and this is %s.\n\
It may depend on new features, consider upgrading."
f.file_name (OpamVersion.to_string v) OpamVersion.(to_string current);
already_warned := true;
false
let check ?allow_major ?(versioned=true) =
fun f fields ->
let f_opam_version =
if List.mem s_opam_version fields then
OpamFormat.assoc_option f.file_contents s_opam_version
(OpamFormat.parse_string @> OpamVersion.of_string)
else None
in
(* Reading a file with a newer minor version triggers permissive
mode: silently ignore new fields and try to be more tolerant *)
let permissive_mode = match f_opam_version with
| Some v -> not (check_opam_version ?allow_major f v)
| None ->
if versioned then (
if !OpamGlobals.strict then
OpamGlobals.error_and_exit
"Strict mode: %s missing the opam-version field"
(OpamMisc.prettify_path f.file_name);
OpamGlobals.warning
"%s is missing the 'opam-version:' field."
(OpamMisc.prettify_path f.file_name);
true
) else false
in
if not permissive_mode &&
not (OpamFormat.is_valid f.file_contents fields) then
let invalids = OpamFormat.invalid_fields f.file_contents fields in
let too_many, invalids =
List.partition (fun x -> List.mem x fields) invalids
in
if too_many <> [] then
OpamGlobals.warning "duplicate fields in %s: %s"
f.file_name
(OpamMisc.string_of_list (fun x -> x) too_many);
let is_, s_ =
if List.length invalids <= 1 then "is an", "" else "are", "s" in
if invalids <> [] then
OpamGlobals.warning "%s %s unknown field%s in %s."
(OpamMisc.pretty_list invalids)
is_ s_ f.file_name;
if !OpamGlobals.strict then
OpamGlobals.error_and_exit "Strict mode: bad fields in %s"
f.file_name;
false
else permissive_mode
let to_1_0 file =
let file_contents = List.map (function
| Variable (pos, v, _) as c ->
if v = s_opam_version then
Variable (pos,s_opam_version, OpamFormat.make_string "1")
else c
| c -> c
) file.file_contents in
{ file with file_contents; file_format = OpamVersion.of_string "1" }
end
module Prefix = struct
let internal = "prefix"
type t = string name_map
let empty = OpamPackage.Name.Map.empty
let of_channel filename ic =
let lines = Lines.of_channel filename ic in
List.fold_left (fun map -> function
| [] -> map
| [nv;prefix] -> OpamPackage.Name.Map.add (OpamPackage.Name.of_string nv)
prefix map
| s ->
OpamGlobals.error_and_exit
"%S is not a valid prefix line"
(String.concat " " s)
) OpamPackage.Name.Map.empty lines
let to_string filename s =
let lines =
OpamPackage.Name.Map.fold (fun nv prefix l ->
[OpamPackage.Name.to_string nv; prefix] :: l
) s [] in
Lines.to_string filename lines
end
module Filenames = struct
let internal = "filenames"
type t = filename_set
let empty = OpamFilename.Set.empty
let of_channel filename ic =
let lines = Lines.of_channel filename ic in
let lines = OpamMisc.filter_map (function
| [] -> None
| [f] -> Some (OpamFilename.of_string f)
| s -> OpamGlobals.error_and_exit "%S is not a valid filename"
(String.concat " " s)
) lines in
OpamFilename.Set.of_list lines
let to_string filename s =
let lines =
List.rev_map
(fun f -> [OpamFilename.to_string f])
(OpamFilename.Set.elements s) in
Lines.to_string filename lines
end
module File_attributes = struct
let internal = "file_attributes"
type t = file_attribute_set
let empty = OpamFilename.Attribute.Set.empty
let of_channel filename ic =
let lines = Lines.of_channel filename ic in
let rs = OpamMisc.filter_map (function
| [] -> None
| [s] -> (* backwards-compat *)
Some (OpamFilename.Attribute.of_string_list (OpamMisc.split s ' '))
| l ->
Some (OpamFilename.Attribute.of_string_list l)
) lines in
OpamFilename.Attribute.Set.of_list rs
let to_string filename t =
let lines =
List.rev_map
(fun r -> OpamFilename.Attribute.to_string_list r)
(OpamFilename.Attribute.Set.elements t) in
Lines.to_string filename lines
end
module URL = struct
let internal = "url"
type t = {
url : address;
mirrors : address list;
kind : repository_kind;
checksum: string option;
}
let create kind ?(mirrors=[]) url =
{
url; mirrors; kind; checksum = None;
}
let empty = {
url = "<none>", None;
mirrors = [];
kind = `local;
checksum= None;
}
let s_archive = "archive"
let s_src = "src"
let s_http = "http"
let s_checksum = "checksum"
let s_git = "git"
let s_darcs = "darcs"
let s_hg = "hg"
let s_local = "local"
let s_mirrors = "mirrors"
let valid_fields = [
Syntax.s_opam_version;
s_archive;
s_src;
s_http;
s_git;
s_darcs;
s_hg;
s_local;
s_checksum;
s_mirrors;
]
let url_and_kind ~src ~archive ~http ~git ~darcs ~hg ~local =
let extract =
match src, archive, http, git, darcs, hg, local with
| None , None , None , None , None , None , None -> None
| Some x, None , None , None , None , None , None
| None , Some x, None , None , None , None , None -> Some (x, None)
| None , None , Some x, None , None , None , None -> Some (x, Some `http)
| None , None , None , Some x, None , None , None -> Some (x, Some `git)
| None , None , None , None , Some x, None , None -> Some (x, Some `darcs)
| None , None , None , None , None , Some x, None -> Some (x, Some `hg)
| None , None , None , None , None , None , Some x -> Some (x, Some `local)
| _ -> OpamFormat.bad_format "Too many URLS"
in
match extract with
| None -> None
| Some (url, kind_opt) ->
try
let url, kind = parse_url url in
Some (url, OpamMisc.Option.default kind kind_opt)
with Invalid_argument s -> OpamFormat.bad_format "%s" s
let of_channel filename ic =
let s = Syntax.of_channel filename ic in
let permissive = Syntax.check ~versioned:false s valid_fields in
let get f =
try
OpamFormat.assoc_option s.file_contents f
(OpamFormat.parse_string @> address_of_string)
with OpamFormat.Bad_format _ when permissive -> None
in
let archive = get s_archive in
let http = get s_http in
let src = get s_src in
let git = get s_git in
let darcs = get s_darcs in
let hg = get s_hg in
let local = get s_local in
let mirrors =
OpamFormat.assoc_list s.file_contents s_mirrors
(OpamFormat.parse_list (OpamFormat.parse_string @> address_of_string)) in
let checksum =
OpamFormat.assoc_option s.file_contents s_checksum OpamFormat.parse_string in
let url, kind =
match url_and_kind ~src ~archive ~http ~git ~darcs ~hg ~local
with Some x -> x | None -> OpamFormat.bad_format "URL is missing" in
{ url; mirrors; kind; checksum }
let to_string filename t =
let url_name = string_of_repository_kind t.kind in
let s = {
file_format = OpamVersion.current;
file_name = OpamFilename.to_string filename;
file_contents = [
OpamFormat.make_variable (
url_name ,
OpamFormat.make_string (string_of_address t.url));
] @ (
if t.mirrors = [] then [] else
[OpamFormat.make_variable (s_mirrors ,
OpamFormat.make_list
(string_of_address @> OpamFormat.make_string)
t.mirrors)]
) @ match t.checksum with
| None -> []
| Some c -> [OpamFormat.make_variable (s_checksum, OpamFormat.make_string c)]
} in
Syntax.to_string s
let url t = t.url
let mirrors t = t.mirrors
let kind t = t.kind
let checksum t = t.checksum
let with_checksum t checksum = { t with checksum = Some checksum }
end
module Export = struct
let internal = "export"
type t = package_set * package_set * pin_option OpamPackage.Name.Map.t
let empty = (OpamPackage.Set.empty, OpamPackage.Set.empty, OpamPackage.Name.Map.empty)
let of_channel filename ic =
let lines = Lines.of_channel filename ic in
let state = function
| "root" -> `Root
| "noroot" | "installed" -> `Installed
| "uninstalled" -> `Uninstalled
| s ->
OpamGlobals.error_and_exit "Invalid installation status (col. 3) in %s: %S"
(OpamFilename.to_string filename) s
in
let add (installed,roots,pinned) n v state p =
let name = OpamPackage.Name.of_string n in
let nv = OpamPackage.create name (OpamPackage.Version.of_string v) in
let installed =
if state <> `Uninstalled then OpamPackage.Set.add nv installed
else installed in
let roots =
if state = `Root then OpamPackage.Set.add nv roots
else roots in
let pinned = match p with
| None -> pinned
| Some (kind,p) ->
OpamPackage.Name.Map.add name (pin_option_of_string ~kind p) pinned
in
installed, roots, pinned
in
List.fold_left (fun acc -> function
| [] -> acc
| [n; v] -> add acc n v `Root None
| [n; v; r] -> add acc n v (state r) None
| [n; v; r; pk; p] ->
add acc n v (state r) (Some (pin_kind_of_string pk,p))
| l ->
OpamGlobals.error_and_exit "Invalid line in %s: %S"
(OpamFilename.to_string filename)
(String.concat " " l)
)
(OpamPackage.Set.empty, OpamPackage.Set.empty, OpamPackage.Name.Map.empty)
lines
let to_string _ (installed, roots, pinned) =
let buf = Buffer.create 1024 in
let print_pin pin =
Printf.sprintf "\t%s\t%s"
(string_of_pin_kind (kind_of_pin_option pin))
(string_of_pin_option pin) in
OpamPackage.Set.iter (fun nv ->
let name = OpamPackage.name nv in
Printf.bprintf buf "%s\t%s\t%s%s\n"
(OpamPackage.Name.to_string (OpamPackage.name nv))
(OpamPackage.Version.to_string (OpamPackage.version nv))
(if OpamPackage.Set.mem nv roots then "root" else "installed")
(try print_pin (OpamPackage.Name.Map.find name pinned)
with Not_found -> "")
) installed;
let installed_names = OpamPackage.names_of_packages installed in
OpamPackage.Name.Map.iter (fun name pin ->
if not (OpamPackage.Name.Set.mem name installed_names) then
Printf.bprintf buf "%s\t--\tuninstalled\t%s\n"
(OpamPackage.Name.to_string name)
(print_pin pin)
) pinned;
Buffer.contents buf
end
module Installed = struct
let internal = "installed"
type t = package_set
let empty = OpamPackage.Set.empty
let check t =
let map = OpamPackage.to_map t in
OpamPackage.Name.Map.iter (fun n vs ->
if OpamPackage.Version.Set.cardinal vs <> 1 then
OpamGlobals.error_and_exit "Multiple versions installed for package %s: %s"
(OpamPackage.Name.to_string n) (OpamPackage.Version.Set.to_string vs)
) map
let of_channel filename ic =
let lines = Lines.of_channel filename ic in
let map,_ =
List.fold_left (fun (map,i) -> function
| [] -> map, i+1
| [name; version] ->
OpamPackage.Set.add
(OpamPackage.create
(OpamPackage.Name.of_string name)
(OpamPackage.Version.of_string version))
map,
i+1
| s ->
OpamGlobals.error "At %s:%d: skipped invalid line %S"
(OpamFilename.prettify filename) i (String.concat " " s);
map, i+1
) (empty,1) lines in
map
let to_string _ t =
check t;
let buf = Buffer.create 1024 in
OpamPackage.Set.iter
(fun nv ->
Printf.bprintf buf "%s %s\n"
(OpamPackage.Name.to_string (OpamPackage.name nv))
(OpamPackage.Version.to_string (OpamPackage.version nv)))
t;
Buffer.contents buf
end
module Installed_roots = struct
include Installed
let internal = "installed.roots"
end
module Reinstall = struct
include Installed
let internal = "reinstall"
end
module Repo_index (A : OpamMisc.ABSTRACT) = struct
let internal = "repo-index"
type t = (repository_name * string option) A.Map.t
let empty = A.Map.empty
let of_channel filename ic =
let lines = Lines.of_channel filename ic in
List.fold_left (fun map -> function
| [] | [_] -> map
| a_s :: repos_s :: prefix ->
let a = A.of_string a_s in
if A.Map.mem a map then
OpamGlobals.error_and_exit "multiple lines for %s" a_s
else
let repo_name = OpamRepositoryName.of_string repos_s in
let prefix = match prefix with
| [] -> None
| [p] -> Some p
| _ -> OpamGlobals.error_and_exit "Too many prefixes" in
A.Map.add a (repo_name, prefix) map
) A.Map.empty lines
let to_string filename map =
let lines = A.Map.fold (fun nv (repo_name, prefix) lines ->
let repo_s = OpamRepositoryName.to_string repo_name in
let prefix_s = match prefix with
| None -> []
| Some p -> [p] in
(A.to_string nv :: repo_s :: prefix_s) :: lines
) map [] in
Lines.to_string filename (List.rev lines)
end
module Package_index = Repo_index(OpamPackage)
module Compiler_index = Repo_index(OpamCompiler)
module Pinned = struct
let internal = "pinned"
type t = pin_option OpamPackage.Name.Map.t
let empty = OpamPackage.Name.Map.empty
let of_channel filename ic =
let lines = Lines.of_channel filename ic in
let add name_s pin map =
let name = OpamPackage.Name.of_string name_s in
if OpamPackage.Name.Map.mem name map then
OpamGlobals.error_and_exit "multiple lines for package %s" name_s
else
OpamPackage.Name.Map.add name pin map in
List.fold_left (fun map -> function
| [] -> map
| [name_s; x] -> add name_s (pin_option_of_string x) map
| [name_s;k;x] ->
let kind = Some (pin_kind_of_string k) in
add name_s (pin_option_of_string ?kind x) map
| _ -> OpamGlobals.error_and_exit "too many pinning options"
) OpamPackage.Name.Map.empty lines
let to_string filename map =
let lines = OpamPackage.Name.Map.fold (fun name pin lines ->
let kind = kind_of_pin_option pin in
let l = [
OpamPackage.Name.to_string name;
string_of_pin_kind kind;
string_of_pin_option pin
] in
l :: lines
) map [] in
Lines.to_string filename (List.rev lines)
end
module Repo_config = struct
let internal = "repo-config"
type t = repository
let empty = {
repo_name = OpamRepositoryName.of_string "<none>";
repo_address = ("<none>", None);
repo_root = OpamFilename.raw_dir "<none>";
repo_kind = `local;
repo_priority = 0;
}
let s_name = "name"
let s_kind = "kind"
let s_address = "address"
let s_priority = "priority"
let s_root = "root"
let of_channel filename ic =
let s = Syntax.of_channel filename ic in
let repo_name =
OpamFormat.assoc s.file_contents s_name
(OpamFormat.parse_string @> OpamRepositoryName.of_string) in
let repo_address =
OpamFormat.assoc s.file_contents s_address
(OpamFormat.parse_string @> address_of_string) in
let repo_kind =
OpamFormat.assoc s.file_contents s_kind
(OpamFormat.parse_string @> repository_kind_of_string) in
let repo_priority =
OpamFormat.assoc_default 0 s.file_contents s_priority OpamFormat.parse_int in
let repo_root =
match OpamFormat.assoc_option s.file_contents s_root
(OpamFormat.parse_string @> OpamFilename.raw_dir)
with None -> OpamPath.Repository.create (OpamPath.root ()) repo_name
| Some f -> f in
{ repo_name; repo_address; repo_kind; repo_priority; repo_root }
let to_string filename t =
let s = {
file_format = OpamVersion.current;
file_name = OpamFilename.to_string filename;
file_contents = [
OpamFormat.make_variable (s_name ,
OpamFormat.make_string (OpamRepositoryName.to_string t.repo_name));
OpamFormat.make_variable (s_address ,
OpamFormat.make_string (string_of_address t.repo_address));
OpamFormat.make_variable (s_kind ,
OpamFormat.make_string (string_of_repository_kind t.repo_kind));
OpamFormat.make_variable (s_priority,
OpamFormat.make_int t.repo_priority);
OpamFormat.make_variable (s_root,
OpamFormat.make_string (OpamFilename.Dir.to_string t.repo_root));
] } in
Syntax.to_string s
end
module Descr = struct
let internal = "descr"
type t = string * string
let empty = "", ""
let synopsis = fst
let body = snd
let full (x,y) = x ^ "\n" ^ y
let of_channel _ ic =
let x =
try input_line ic
with End_of_file | Sys_error _ -> "" in
let y =
try OpamSystem.string_of_channel ic
with End_of_file | Sys_error _ -> ""
in
x, y
let of_string str =
let head, tail =
match OpamMisc.cut_at str '\n' with
| None -> str, ""
| Some (h,t) -> h, t in
head, tail
let to_string _ = full
end
module Aliases = struct
let internal = "aliases"
type t = compiler switch_map
let empty = OpamSwitch.Map.empty
let to_string filename t =
let l =
OpamSwitch.Map.fold (fun switch compiler lines ->
[OpamSwitch.to_string switch; OpamCompiler.to_string compiler] :: lines
) t [] in
Lines.to_string filename l
let of_channel filename ic =
let l = Lines.of_channel filename ic in
List.fold_left (fun map -> function
| [] -> map
| [switch; comp] -> OpamSwitch.Map.add (OpamSwitch.of_string switch)
(OpamCompiler.of_string comp) map
| _ -> failwith "switches"
) OpamSwitch.Map.empty l
end
module Config = struct
let internal = "config"
type t = {
opam_version : opam_version;
repositories : repository_name list ;
switch : switch;
jobs : int;
dl_tool : arg list option;
dl_jobs : int;
criteria : (solver_criteria * string) list;
solver : arg list option;
}
let with_repositories t repositories = { t with repositories }
let with_switch t switch = { t with switch }
let with_current_opam_version t = { t with opam_version = OpamVersion.current_nopatch }
let with_criteria t criteria = { t with criteria }
let with_solver t solver = { t with solver }
let opam_version t = t.opam_version
let repositories t = t.repositories
let switch t = t.switch
let jobs t = t.jobs
let dl_tool t = t.dl_tool
let dl_jobs t = t.dl_jobs
let criteria t = t.criteria
let solver t = t.solver
let create switch repositories ?(criteria=[]) ?solver jobs ?download_tool dl_jobs =
{ opam_version = OpamVersion.current;
repositories ; switch ; jobs ; dl_tool = download_tool; dl_jobs ;
criteria ; solver }
let empty = {
opam_version = OpamVersion.current;
repositories = [];
switch = OpamSwitch.of_string "<empty>";
jobs = OpamGlobals.default_jobs;
dl_tool = None;
dl_jobs = OpamGlobals.default_dl_jobs;
criteria = [];
solver = None;
}
let s_opam_version = "opam-version"
let s_repositories = "repositories"
let s_switch = "switch"
let s_switch1 = "alias"
let s_switch2 = "ocaml-version"
let s_jobs = "jobs"
let s_dl_tool = "download-command"
let s_dl_jobs = "download-jobs"
let s_criteria = "solver-criteria"
let s_upgrade_criteria = "solver-upgrade-criteria"
let s_fixup_criteria = "solver-fixup-criteria"
let s_solver = "solver"
let s_cores = "cores"
let s_system_version1 = "system_ocaml-version"
let s_system_version2 = "system-ocaml-version"
let valid_fields = [
s_opam_version;
s_repositories;
s_switch;
s_jobs;
s_dl_tool;
s_dl_jobs;
s_criteria;
s_upgrade_criteria;
s_fixup_criteria;
s_solver;
(* these fields are no longer useful, but we keep them for backward
compatibility *)
s_switch1;
s_switch2;
s_system_version1;
s_system_version2;
s_cores;
]
let of_channel filename ic =
let s = Syntax.of_channel filename ic in
let permissive = Syntax.check s valid_fields in
let opam_version = OpamFormat.assoc s.file_contents s_opam_version
(OpamFormat.parse_string @> OpamVersion.of_string) in
let repositories =
try
OpamFormat.assoc_list s.file_contents s_repositories
(OpamFormat.parse_list
(OpamFormat.parse_string @> OpamRepositoryName.of_string))
with OpamFormat.Bad_format _ when permissive -> []
in
let mk_switch str =
OpamFormat.assoc_option s.file_contents str
(OpamFormat.parse_string @> OpamSwitch.of_string) in
let switch = mk_switch s_switch in
let switch1 = mk_switch s_switch1 in
let switch2 = mk_switch s_switch2 in
let switch =
match OpamMisc.Option.Op.(switch ++ switch1 ++ switch2) with
| Some v -> v
| None -> OpamGlobals.error_and_exit
"No current switch defined in %s."
(OpamFilename.to_string filename) in
let jobs =
try
let mk str =
OpamFormat.assoc_option s.file_contents str OpamFormat.parse_int in
match OpamMisc.Option.Op.(mk s_jobs ++ mk s_cores) with
| Some i -> i
| None -> OpamGlobals.default_jobs
with OpamFormat.Bad_format _ when permissive ->
OpamGlobals.default_jobs
in
let dl_tool =
try
OpamFormat.assoc_option s.file_contents s_dl_tool
OpamFormat.parse_single_command
with OpamFormat.Bad_format _ when permissive -> None
in
let dl_jobs =
try
match OpamFormat.assoc_option s.file_contents s_dl_jobs
OpamFormat.parse_int with
| Some i -> i
| None -> OpamGlobals.default_dl_jobs
with OpamFormat.Bad_format _ when permissive ->
OpamGlobals.default_dl_jobs
in
let criteria =
let crit kind fld acc =
match
OpamFormat.assoc_option s.file_contents fld OpamFormat.parse_string
with
| Some c -> (kind,c)::acc
| None -> acc in
[]
|> crit `Fixup s_fixup_criteria
|> crit `Upgrade s_upgrade_criteria
|> crit `Default s_criteria
in
let solver =
try
OpamFormat.assoc_option s.file_contents s_solver
OpamFormat.parse_single_command
with OpamFormat.Bad_format _ when permissive -> None
in
{ opam_version; repositories; switch; jobs; dl_tool; dl_jobs;
criteria; solver }
let to_string filename t =
let criteria =
let mk kind s acc =
try
let c = List.assoc kind t.criteria in
OpamFormat.make_variable (s, OpamFormat.make_string c) :: acc
with Not_found -> acc in
[]
|> mk `Fixup s_fixup_criteria
|> mk `Upgrade s_upgrade_criteria
|> mk `Default s_criteria
in
let solver = match t.solver with
| None -> []
| Some s ->
[OpamFormat.make_variable
(s_solver, OpamFormat.make_single_command s)]
in
let download_tool = match t.dl_tool with
| None -> []
| Some dlt ->
[OpamFormat.make_variable
(s_dl_tool, OpamFormat.make_single_command dlt)]
in
let s = {
file_format = OpamVersion.current;
file_name = OpamFilename.to_string filename;
file_contents = [
OpamFormat.make_variable (s_opam_version,
OpamFormat.make_string (OpamVersion.to_string t.opam_version));
OpamFormat.make_variable (s_repositories,
OpamFormat.make_list
(OpamRepositoryName.to_string @> OpamFormat.make_string)
t.repositories);
OpamFormat.make_variable (s_jobs , OpamFormat.make_int t.jobs);
OpamFormat.make_variable (s_dl_jobs , OpamFormat.make_int t.dl_jobs);
OpamFormat.make_variable (s_switch, OpamFormat.make_string (OpamSwitch.to_string t.switch))
] @ criteria
@ solver
@ download_tool
} in
Syntax.to_string s
end
module OPAM = struct
let internal = "opam"
type t = {
opam_version: opam_version;
name : OpamPackage.Name.t option;
version : OpamPackage.Version.t option;
maintainer : string list;
substs : basename list;
build_env : (string * string * string) list;
build : command list;
install : command list;
remove : command list;
depends : ext_formula;
depopts : ext_formula;
conflicts : formula;
features : (OpamVariable.t * string * filter) list;
libraries : (string * filter option) list;
syntax : (string * filter option) list;
patches : (basename * filter option) list;
ocaml_version: compiler_constraint option;
os : (bool * string) generic_formula;
available : filter;
homepage : string list;
author : string list;
license : string list;
doc : string list;
tags : string list;
build_test : command list;
build_doc : command list;
depexts : tags option;
messages : (string * filter option) list;
bug_reports : string list;
post_messages: (string * filter option) list;
flags : package_flag list;
dev_repo : pin_option option;
}
let empty = {
opam_version = OpamVersion.current_nopatch;
name = None;
version = None;
maintainer = [];
substs = [];
build_env = [];
build = [];
install = [];
remove = [];
depends = OpamFormula.Empty;
depopts = OpamFormula.Empty;
conflicts = OpamFormula.Empty;
features = [];
libraries = [];
syntax = [];
patches = [];
ocaml_version = None;
os = Empty;
available = FBool true;
homepage = [];
author = [];
license = [];
doc = [];
tags = [];
build_test = [];
build_doc = [];
depexts = None;
messages = [];
post_messages = [];
bug_reports = [];
flags = [];
dev_repo = None;
}