From 10129bd4211423a79e261d4d0ce58af159c0b2af Mon Sep 17 00:00:00 2001
From: Art Wild <wildart@gmail.com>
Date: Tue, 19 May 2015 19:29:22 -0400
Subject: [PATCH] added `push`, transitioned `pull_request`

---
 base/pkg/entry.jl              | 40 +++++++++++++++++++++-------------
 base/pkg/libgit2.jl            | 11 ++++++++++
 base/pkg/libgit2/remote.jl     | 13 +++++++++++
 base/pkg/libgit2/repository.jl |  5 +----
 base/pkg/libgit2/types.jl      |  6 +++++
 5 files changed, 56 insertions(+), 19 deletions(-)

diff --git a/base/pkg/entry.jl b/base/pkg/entry.jl
index 27c4094f57207..ceaa896b784da 100644
--- a/base/pkg/entry.jl
+++ b/base/pkg/entry.jl
@@ -323,21 +323,31 @@ function update(branch::AbstractString)
 end
 
 function pull_request(dir::AbstractString, commit::AbstractString="", url::AbstractString="")
-    commit = isempty(commit) ? Git.head(dir=dir) :
-        Git.readchomp(`rev-parse --verify $commit`, dir=dir)
-    isempty(url) && (url = Git.readchomp(`config remote.origin.url`, dir=dir))
-    m = match(Git.GITHUB_REGEX, url)
-    m == nothing && throw(PkgError("not a GitHub repo URL, can't make a pull request: $url"))
-    owner, repo = m.captures[2:3]
-    user = GitHub.user()
-    info("Forking $owner/$repo to $user")
-    response = GitHub.fork(owner,repo)
-    fork = response["ssh_url"]
-    branch = "pull-request/$(commit[1:8])"
-    info("Pushing changes as branch $branch")
-    Git.run(`push -q $fork $commit:refs/heads/$branch`, dir=dir)
-    pr_url = "$(response["html_url"])/compare/$branch"
-    @osx? run(`open $pr_url`) : info("To create a pull-request, open:\n\n  $pr_url\n")
+    with(GitRepo, dir) do repo
+        if isempty(commit)
+            commit = string(LibGit2.head_oid(repo))
+        else
+            !LibGit2.iscommit(commit, repo) && throw(PkgError("Cannot find pull commit: $commit"))
+        end
+        if isempty(url)
+            with(GitConfig, repo) do cfg
+                url = LibGit2.get(cfg, "remote.origin.url", "")
+            end
+        end
+
+        m = match(LibGit2.GITHUB_REGEX, url)
+        m == nothing && throw(PkgError("not a GitHub repo URL, can't make a pull request: $url"))
+        owner, repo = m.captures[2:3]
+        user = GitHub.user()
+        info("Forking $owner/$repo to $user")
+        response = GitHub.fork(owner,repo)
+        fork = response["ssh_url"]
+        branch = "pull-request/$(commit[1:8])"
+        info("Pushing changes as branch $branch")
+        LibGit2.push(repo, fork, "$commit:refs/heads/$branch")
+        pr_url = "$(response["html_url"])/compare/$branch"
+        @osx? run(`open $pr_url`) : info("To create a pull-request, open:\n\n  $pr_url\n")
+    end
 end
 
 function submit(pkg::AbstractString, commit::AbstractString="")
diff --git a/base/pkg/libgit2.jl b/base/pkg/libgit2.jl
index 315ac5fa90fe2..761edee4fc0e5 100644
--- a/base/pkg/libgit2.jl
+++ b/base/pkg/libgit2.jl
@@ -2,6 +2,8 @@
 
 module LibGit2
 
+import ...Pkg.PkgError
+
 export with, with_warn
 export GitRepo, GitConfig, GitIndex
 
@@ -345,6 +347,15 @@ function cat{T<:GitObject}(repo::GitRepo, ::Type{T}, object::AbstractString)
     end
 end
 
+""" git push <url> [<refspecs>]"""
+function push(repo::GitRepo, url::AbstractString, refspecs::AbstractString="")
+    with(GitRemoteAnon(repo, url, refspecs)) do rmt
+        with(default_signature(repo)) do sig
+            push(rmt, sig)
+        end
+    end
+end
+
 """ Returns all commit authors """
 function authors(repo::GitRepo)
     athrs = map(
diff --git a/base/pkg/libgit2/remote.jl b/base/pkg/libgit2/remote.jl
index 6a82056f7aabd..194b9a93743b6 100644
--- a/base/pkg/libgit2/remote.jl
+++ b/base/pkg/libgit2/remote.jl
@@ -33,3 +33,16 @@ function url(rmt::GitRemote)
     url_ptr == C_NULL && return ""
     return  bytestring(url_ptr)
 end
+
+function push(rmt::GitRemote, sig::GitSignature, refspecs::AbstractString="";
+              msg::AbstractString="")
+    push_opts = PushOptionsStruct()
+    !isempty(refspecs) && (sa = StrArrayStruct(pathspecs...))
+    try
+        @check ccall((:git_remote_push, :libgit2), Cint,
+            (Ptr{Void}, Ptr{StrArrayStruct}, Ptr{PushOptionsStruct}, Ptr{Void}, Ptr{UInt8}),
+             rmt.ptr, !isempty(refspecs) ? Ref(sa) : C_NULL, Ref(push_opts), sig.ptr, isempty(msg) ? C_NULL : msg)
+    finally
+        !isempty(refspecs) && finalize(sa)
+    end
+end
diff --git a/base/pkg/libgit2/repository.jl b/base/pkg/libgit2/repository.jl
index bbea90db1d3c9..2a4383a81fbd3 100644
--- a/base/pkg/libgit2/repository.jl
+++ b/base/pkg/libgit2/repository.jl
@@ -146,15 +146,12 @@ function fetch(repo::GitRepo, rmt::GitRemote; msg::AbstractString="")
 end
 
 function reset!(repo::GitRepo, obj::Nullable{GitAnyObject}, pathspecs::AbstractString...)
-    sa = StrArrayStruct(pathspecs...)
-    try
+    with(StrArrayStruct(pathspecs...)) do sa
         @check ccall((:git_reset_default, :libgit2), Cint,
                 (Ptr{Void}, Ptr{Void}, Ptr{StrArrayStruct}),
                 repo.ptr,
                 isnull(obj) ? C_NULL: Base.get(obj).ptr,
                 Ref(sa))
-    finally
-        finalize(sa)
     end
 end
 
diff --git a/base/pkg/libgit2/types.jl b/base/pkg/libgit2/types.jl
index 892dac4aed62d..a07ea16c75f94 100644
--- a/base/pkg/libgit2/types.jl
+++ b/base/pkg/libgit2/types.jl
@@ -227,6 +227,12 @@ MergeOptionsStruct(; flags::Cint = Cint(0),
                       file_favor
                     )
 
+immutable PushOptionsStruct
+    version::Cuint
+    parallelism::Cint
+end
+PushOptionsStruct() = PushOptionsStruct(one(Cuint),one(Cuint))
+
 immutable IndexTime
     seconds::Int64
     nanoseconds::Cuint