git-p4: allow submit to create shelved changelists.

Add a --shelve command line argument which invokes p4 shelve instead
of submitting changes. After shelving the changes are reverted from the
p4 workspace.

Signed-off-by: Vinicius Kursancew <viniciusalexandre@gmail.com>
Reviewed-by: Luke Diamand <luke@diamand.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Documentation/git-p4.txt

@@ -303,6 +303,11 @@ These options can be used to modify 'git p4 submit' behavior.
 	submit manually or revert.  This option always stops after the
 	first (oldest) commit.  Git tags are not exported to p4.
 
+--shelve::
+	Instead of submitting create a series of shelved changelists.
+	After creating each shelve, the relevant files are reverted/deleted.
+	If you have multiple commits pending multiple shelves will be created.
+
 --conflict=(ask|skip|quit)::
 	Conflicts can occur when applying a commit to p4.  When this
 	happens, the default behavior ("ask") is to prompt whether to

git-p4.py

@@ -1289,6 +1289,9 @@ def __init__(self):
                 optparse.make_option("--conflict", dest="conflict_behavior",
                                      choices=self.conflict_behavior_choices),
                 optparse.make_option("--branch", dest="branch"),
+                optparse.make_option("--shelve", dest="shelve", action="store_true",
+                                     help="Shelve instead of submit. Shelved files are reverted, "
+                                     "restoring the workspace to the state before the shelve"),
         ]
         self.description = "Submit changes from git to the perforce depot."
         self.usage += " [name of git branch to submit into perforce depot]"
@@ -1296,6 +1299,7 @@ def __init__(self):
         self.detectRenames = False
         self.preserveUser = gitConfigBool("git-p4.preserveUser")
         self.dry_run = False
+        self.shelve = False
         self.prepare_p4_only = False
         self.conflict_behavior = None
         self.isWindows = (platform.system() == "Windows")
@@ -1785,7 +1789,14 @@ def applyCommit(self, id):
                 if self.isWindows:
                     message = message.replace("\r\n", "\n")
                 submitTemplate = message[:message.index(separatorLine)]
-                p4_write_pipe(['submit', '-i'], submitTemplate)
+                if self.shelve:
+                    p4_write_pipe(['shelve', '-i'], submitTemplate)
+                else:
+                    p4_write_pipe(['submit', '-i'], submitTemplate)
+                    # The rename/copy happened by applying a patch that created a
+                    # new file.  This leaves it writable, which confuses p4.
+                    for f in pureRenameCopy:
+                        p4_sync(f, "-f")
 
                 if self.preserveUser:
                     if p4User:
@@ -1795,23 +1806,20 @@ def applyCommit(self, id):
                         changelist = self.lastP4Changelist()
                         self.modifyChangelistUser(changelist, p4User)
 
-                # The rename/copy happened by applying a patch that created a
-                # new file.  This leaves it writable, which confuses p4.
-                for f in pureRenameCopy:
-                    p4_sync(f, "-f")
                 submitted = True
 
         finally:
             # skip this patch
-            if not submitted:
-                print "Submission cancelled, undoing p4 changes."
-                for f in editedFiles:
+            if not submitted or self.shelve:
+                if self.shelve:
+                    print ("Reverting shelved files.")
+                else:
+                    print ("Submission cancelled, undoing p4 changes.")
+                for f in editedFiles | filesToDelete:
                     p4_revert(f)
                 for f in filesToAdd:
                     p4_revert(f)
                     os.remove(f)
-                for f in filesToDelete:
-                    p4_revert(f)
 
         os.remove(fileName)
         return submitted
@@ -2067,13 +2075,13 @@ def run(self, args):
                         break
 
         chdir(self.oldWorkingDirectory)
-
+        shelved_applied = "shelved" if self.shelve else "applied"
         if self.dry_run:
             pass
         elif self.prepare_p4_only:
             pass
         elif len(commits) == len(applied):
-            print "All commits applied!"
+            print ("All commits {0}!".format(shelved_applied))
 
             sync = P4Sync()
             if self.branch:
@@ -2085,9 +2093,9 @@ def run(self, args):
 
         else:
             if len(applied) == 0:
-                print "No commits applied."
+                print ("No commits {0}.".format(shelved_applied))
             else:
-                print "Applied only the commits marked with '*':"
+                print ("{0} only the commits marked with '*':".format(shelved_applied.capitalize()))
                 for c in commits:
                     if c in applied:
                         star = "*"

t/t9807-git-p4-submit.sh

@@ -413,6 +413,37 @@ test_expect_success 'submit --prepare-p4-only' '
 	)
 '
 
+test_expect_success 'submit --shelve' '
+	test_when_finished cleanup_git &&
+	git p4 clone --dest="$git" //depot &&
+	(
+		cd "$cli" &&
+		p4 revert ... &&
+		cd "$git" &&
+		git config git-p4.skipSubmitEdit true &&
+		test_commit "shelveme1" &&
+		git p4 submit --origin=HEAD^ &&
+
+		echo 654321 >shelveme2.t &&
+		echo 123456 >>shelveme1.t &&
+		git add shelveme* &&
+		git commit -m"shelvetest" &&
+		git p4 submit --shelve --origin=HEAD^ &&
+
+		test_path_is_file shelveme1.t &&
+		test_path_is_file shelveme2.t
+	) &&
+	(
+		cd "$cli" &&
+		change=$(p4 -G changes -s shelved -m 1 //depot/... | \
+			 marshal_dump change) &&
+		p4 describe -S $change | grep shelveme2 &&
+		p4 describe -S $change | grep 123456 &&
+		test_path_is_file shelveme1.t &&
+		test_path_is_missing shelveme2.t
+	)
+'
+
 test_expect_success 'kill p4d' '
 	kill_p4d
 '