Source file vcs.ml
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open Bos_setup
module Tag = struct
type t = string
let pp = Fmt.string
let equal = String.equal
let to_string x = x
let of_string x = x
end
type commit_ish = string
module Tag_or_commit_ish = struct
type t = Tag of Tag.t | Commit_ish of commit_ish
let to_commit_ish = function Tag c | Commit_ish c -> c
end
type kind = [ `Git | `Hg ]
let dirtify id = id ^ "-dirty"
type t = kind * Cmd.t * Fpath.t
let git =
let git = Cmd.v (OS.Env.opt_var "DUNE_RELEASE_GIT" ~absent:"git") in
lazy (OS.Cmd.exists git >>= fun exists -> Ok (exists, git))
let hg =
let hg = Cmd.v (OS.Env.opt_var "DUNE_RELEASE_HG" ~absent:"hg") in
lazy (OS.Cmd.exists hg >>= fun exists -> Ok (exists, hg))
let vcs_cmd kind cmd dir =
match kind with
| `Git -> Cmd.(cmd % "--git-dir" % dir)
| `Hg -> Cmd.(cmd % "--repository" % dir)
let v k cmd ~dir = (k, cmd, dir)
let dir (_, _, dir) = dir
let cmd (kind, cmd, dir) = vcs_cmd kind cmd Fpath.(to_string dir)
let git_work_tree (_, _, dir) = Cmd.(v "--work-tree" % p Fpath.(parent dir))
let find_git () =
Lazy.force git >>= function
| false, _ -> Ok None
| true, git -> (
let git_dir = Cmd.(git % "rev-parse" % "--git-dir") in
OS.Cmd.(run_out ~err:err_null git_dir |> out_string) >>= function
| dir, (_, `Exited 0) -> Ok (Some (v `Git git ~dir:Fpath.(v dir)))
| _ -> Ok None)
module Default = struct
let string = Sos.out ""
let unit = Sos.out ()
let list = Sos.out []
end
let run_git ~dry_run ?force ~default r args out =
let git = Cmd.(cmd r %% args) in
Sos.run_out_err ~dry_run ~sandbox:false ?force git ~default out
>>= fun response ->
match response.status with
| `Exited 0 -> Ok response.output
| `Exited 128
when String.is_prefix response.err_msg
~affix:"git@github.com: Permission denied" ->
let hint =
"\n\
Hint from dune-release: the reason for the Permission denied error is \
probably a failing ssh connection. For more information, see \
https://github.com/ocamllabs/dune-release#publish-troubleshooting ."
in
Sos.cmd_error git (Some (response.err_msg ^ hint)) response.status
| _ -> Sos.cmd_error git (Some response.err_msg) response.status
let run_git_quiet ~dry_run ?force r args =
run_git ~dry_run ?force ~default:Default.unit r args OS.Cmd.out_null
let run_git_string ~dry_run ?force ~default r args =
run_git ~dry_run ?force ~default r args OS.Cmd.out_string
let git_is_dirty r =
let status_cmd = Cmd.(cmd r %% git_work_tree r % "status" % "--porcelain") in
Sos.run_out_err ~dry_run:false status_cmd ~default:Default.string
OS.Cmd.out_string
>>= function
| { output = ""; status = `Exited 0; _ } -> Ok false
| { status = `Exited 0; _ } -> Ok true
| { err_msg; status; _ } -> Sos.cmd_error status_cmd (Some err_msg) status
let dirtify_if ~dirty r id =
match dirty with
| false -> Ok id
| true ->
git_is_dirty r >>= fun is_dirty ->
Ok (if is_dirty then dirtify id else id)
let git_commit_id ~dirty r commit_ish =
let dirty = dirty && commit_ish = "HEAD" in
let id = Cmd.(v "rev-parse" % "--verify" % (commit_ish ^ "^0")) in
run_git_string ~dry_run:false r id ~default:Default.string >>= fun id ->
dirtify_if ~dirty r id
let git_commit_ptime_s ~dry_run r commit_ish =
let commit_ish = commit_ish ^ "^0" in
let time = Cmd.(v "show" % "-s" % "--format=%ct" % commit_ish) in
run_git_string ~dry_run ~force:true r time ~default:Default.string
>>= fun ptime ->
try Ok (Int64.of_string ptime)
with Failure e ->
R.error_msgf "Could not parse timestamp from %S: %s" ptime e
let git_describe ~dirty r commit_ish =
let dirty = dirty && commit_ish = "HEAD" in
let git_describe =
Cmd.(
git_work_tree r % "describe" % "--always" % "--tags"
%% on dirty (v "--dirty")
%% on (not dirty) (v commit_ish))
in
run_git_string ~dry_run:false r git_describe ~default:Default.string
let git_tag_exists ~dry_run r tag =
let tag_rev = "refs/tags/" ^ tag in
match run_git_quiet ~dry_run r Cmd.(v "rev-parse" % "--verify" % tag_rev) with
| Ok () -> true
| _ -> false
let git_branch_exists ~dry_run r br =
let cmd =
Cmd.(v "show-ref" % "--verify" % "--quiet" % ("refs/heads/" ^ br))
in
match run_git_quiet ~dry_run r cmd with Ok () -> true | _ -> false
let git_clone ~dry_run ?force ?branch ~dir:d r =
let branch =
match branch with None -> Cmd.empty | Some b -> Cmd.(v "-b" % b)
in
let clone = Cmd.(v "clone" % "--local" %% branch % p (dir r) % p d) in
run_git ~dry_run ?force r clone ~default:Default.unit OS.Cmd.out_stdout
>>= fun () -> Ok ()
let git_checkout ~dry_run r ~branch ~commit_ish =
let branch =
match branch with None -> Cmd.empty | Some branch -> Cmd.(v "-b" % branch)
in
run_git_string ~dry_run ~force:true r
Cmd.(git_work_tree r % "checkout" % "--quiet" %% branch % commit_ish)
~default:Default.string
>>= fun _ -> Ok ()
let git_change_branch ~dry_run r ~branch =
run_git_string ~dry_run ~force:true r
Cmd.(git_work_tree r % "checkout" % branch)
~default:Default.string
>>= fun _ -> Ok ()
let git_tag ~dry_run r ~force ~sign ~msg ~commit_ish tag =
let msg = match msg with None -> Cmd.empty | Some m -> Cmd.(v "-m" % m) in
let flags = Cmd.(on force (v "-f") %% on sign (v "-s")) in
run_git ~dry_run r
Cmd.(v "tag" % "-a" %% flags %% msg % tag % commit_ish)
~default:Default.unit OS.Cmd.out_stdout
let git_delete_tag ~dry_run r tag =
run_git_quiet ~dry_run r Cmd.(v "tag" % "-d" % tag)
let git_ls_remote ~dry_run r ~kind ~filter upstream =
let rec parse_ls_remote acc = function
| [] -> Ok (List.rev acc)
| line :: tl -> (
match String.fields ~empty:false line with
| [ rev; ref ] -> parse_ls_remote ((rev, ref) :: acc) tl
| _ -> R.error_msgf "Could not parse output of git ls-remote")
in
let kind_arg =
match kind with
| `All -> Cmd.empty
| `Branch -> Cmd.v "--heads"
| `Tag -> Cmd.v "--tags"
and filter_arg =
match filter with Some filter -> Cmd.v filter | None -> Cmd.empty
in
run_git ~dry_run r
Cmd.(v "ls-remote" % "--quiet" %% kind_arg % upstream %% filter_arg)
~default:Default.list OS.Cmd.out_lines
>>= parse_ls_remote []
let git_submodule_update ~dry_run r =
run_git_quiet ~dry_run r Cmd.(v "submodule" % "update" % "--init")
let git_escape_tag t = String.map (function '~' -> '_' | c -> c) t
let git_unescape_tag t = String.map (function '_' -> '~' | c -> c) t
let hg_escape_tag t = t
let hg_unescape_tag t = t
let hg_rev commit_ish = match commit_ish with "HEAD" -> "tip" | c -> c
let find_hg () =
Lazy.force hg >>= function
| false, _ -> Ok None
| true, hg -> (
let hg_root = Cmd.(hg % "root") in
OS.Cmd.(run_out ~err:err_null hg_root |> out_string) >>= function
| dir, (_, `Exited 0) -> Ok (Some (v `Hg hg ~dir:Fpath.(v dir)))
| _ -> Ok None)
let run_hg r args out =
let hg = Cmd.(cmd r %% args) in
OS.Cmd.(run_out hg |> out) >>= function
| v, (_, `Exited 0) -> Ok v
| _, (_, st) -> Sos.cmd_error hg None st
let hg_id r ~rev =
run_hg r Cmd.(v "id" % "-i" % "--rev" % rev) OS.Cmd.out_string >>= fun id ->
let len = String.length id in
let is_dirty = String.length id > 0 && id.[len - 1] = '+' in
let id = if is_dirty then String.with_range id ~len:(len - 1) else id in
Ok (id, is_dirty)
let hg_is_dirty r = hg_id r ~rev:"tip" >>= function _, is_dirty -> Ok is_dirty
let hg_commit_id ~dirty r ~rev =
hg_id r ~rev >>= fun (id, is_dirty) ->
Ok (if is_dirty && dirty then dirtify id else id)
let hg_commit_ptime_s r ~rev =
let time =
Cmd.(v "log" % "--template" % "'{date(date, \"%s\")}'" % "--rev" % rev)
in
run_hg r time OS.Cmd.out_string >>= fun ptime ->
try Ok (Int64.of_string ptime)
with Failure _ -> R.error_msgf "Could not parse timestamp from %S" ptime
let hg_describe ~dirty r ~rev =
let get_distance s =
try Ok (Int64.of_string s)
with Failure _ ->
R.error_msgf "%a: Could not parse hg tag distance." Fpath.pp (dir r)
in
let parent t =
run_hg r
Cmd.(v "parent" % "--rev" % rev % "--template" % t)
OS.Cmd.out_string
in
(parent "{latesttagdistance}" >>= get_distance >>= function
| 1L -> parent "{latesttag}"
| _ -> parent "{latesttag}-{latesttagdistance}-{node|short}")
>>= fun descr ->
match dirty with
| false -> Ok descr
| true ->
hg_id ~rev:"tip" r >>= fun (_, is_dirty) ->
Ok (if is_dirty then dirtify descr else descr)
let hg_clone r ~dir:d =
let clone = Cmd.(v "clone" % p (dir r) % p d) in
run_hg r clone OS.Cmd.out_stdout
let hg_checkout r ~branch ~rev =
run_hg r Cmd.(v "update" % "--rev" % rev) OS.Cmd.out_string >>= fun _ ->
match branch with
| None -> Ok ()
| Some branch ->
run_hg r Cmd.(v "branch" % branch) OS.Cmd.out_string >>= fun _ -> Ok ()
let hg_change_branch r ~branch =
run_hg r Cmd.(v "update" % branch) OS.Cmd.out_string >>= fun _ -> Ok ()
let hg_tag r ~force ~sign ~msg ~rev tag =
if sign then R.error_msgf "Tag signing is not supported by hg"
else
let msg = match msg with None -> Cmd.empty | Some m -> Cmd.(v "-m" % m) in
run_hg r
Cmd.(v "tag" %% on force (v "-f") %% msg % "--rev" % rev % tag)
OS.Cmd.out_stdout
let hg_delete_tag r tag =
run_hg r Cmd.(v "tag" % "--remove" % tag) OS.Cmd.out_stdout
let find ?dir () =
match dir with
| None -> (
find_git () >>= function Some _ as v -> Ok v | None -> find_hg ())
| Some dir -> (
let git_dir = Fpath.(dir / ".git") in
OS.Dir.exists git_dir >>= function
| true -> (
Lazy.force git >>= function
| _, cmd -> Ok (Some (v `Git cmd ~dir:git_dir)))
| false -> (
let hg_dir = Fpath.(dir / ".hg") in
OS.Dir.exists hg_dir >>= function
| false -> Ok None
| true -> (
Lazy.force hg >>= function
| _, cmd -> Ok (Some (v `Hg cmd ~dir:hg_dir)))))
let get ?dir () =
find ?dir () >>= function
| Some r -> Ok r
| None -> (
let dir =
match dir with None -> OS.Dir.current () | Some dir -> Ok dir
in
dir >>= function
| dir -> R.error_msgf "%a: No VCS repository found" Fpath.pp dir)
let is_dirty = function
| (`Git, _, _) as r -> git_is_dirty r
| (`Hg, _, _) as r -> hg_is_dirty r
let commit_id ?(dirty = true) ?(commit_ish = "HEAD") = function
| (`Git, _, _) as r -> git_commit_id ~dirty r commit_ish
| (`Hg, _, _) as r -> hg_commit_id ~dirty r ~rev:(hg_rev commit_ish)
let commit_ptime_s ~dry_run ?(commit_ish = Tag_or_commit_ish.Commit_ish "HEAD")
t =
let commit_ish = Tag_or_commit_ish.to_commit_ish commit_ish in
match t with
| (`Git, _, _) as r -> git_commit_ptime_s ~dry_run r commit_ish
| (`Hg, _, _) as r -> hg_commit_ptime_s r ~rev:(hg_rev commit_ish)
let describe ?(dirty = true) ?(commit_ish = "HEAD") = function
| (`Git, _, _) as r -> git_describe ~dirty r commit_ish
| (`Hg, _, _) as r -> hg_describe ~dirty r ~rev:(hg_rev commit_ish)
let get_tag vcs = describe ~dirty:false vcs
let tag_exists ~dry_run r tag =
match r with
| (`Git, _, _) as r -> git_tag_exists r ~dry_run tag
| `Hg, _, _ -> failwith "TODO"
let tag_points_to r tag =
commit_id ~dirty:false ~commit_ish:tag r |> R.to_option
let branch_exists ~dry_run r tag =
match r with
| (`Git, _, _) as r -> git_branch_exists r ~dry_run tag
| `Hg, _, _ -> failwith "TODO"
let clone ~dry_run ?force ?branch ~dir r =
match r with
| (`Git, _, _) as r -> git_clone ~dry_run ?force ?branch ~dir r
| (`Hg, _, _) as r -> hg_clone r ~dir
let checkout ~dry_run ?branch r ~commit_ish =
let commit_ish = Tag_or_commit_ish.to_commit_ish commit_ish in
match r with
| (`Git, _, _) as r -> git_checkout ~dry_run r ~branch ~commit_ish
| (`Hg, _, _) as r -> hg_checkout r ~branch ~rev:(hg_rev commit_ish)
let change_branch ~dry_run ~branch r =
match r with
| (`Git, _, _) as r -> git_change_branch ~dry_run r ~branch
| (`Hg, _, _) as r -> hg_change_branch r ~branch
let tag ~dry_run ?(force = false) ?(sign = false) ?msg ?(commit_ish = "HEAD") r
tag =
match r with
| (`Git, _, _) as r -> git_tag ~dry_run r ~force ~sign ~msg ~commit_ish tag
| (`Hg, _, _) as r -> hg_tag r ~force ~sign ~msg ~rev:(hg_rev commit_ish) tag
let delete_tag ~dry_run r tag =
match r with
| (`Git, _, _) as r -> git_delete_tag ~dry_run r tag
| (`Hg, _, _) as r -> hg_delete_tag r tag
let ls_remote ~dry_run r ?(kind = `All) ?filter upstream =
match r with
| (`Git, _, _) as r -> git_ls_remote ~dry_run r ~kind ~filter upstream
| `Hg, _, _ -> R.error_msgf "ls_remote is only implemented for Git"
let submodule_update ~dry_run r =
match r with
| (`Git, _, _) as r -> git_submodule_update ~dry_run r
| `Hg, _, _ -> R.error_msgf "submodule update is not supported with mercurial"
let escape_tag = function
| `Git, _, _ -> git_escape_tag
| `Hg, _, _ -> hg_escape_tag
let unescape_tag = function
| `Git, _, _ -> git_unescape_tag
| `Hg, _, _ -> hg_unescape_tag