Merge branch 'sh/p4-multi-depot'

"git p4" when interacting with multiple depots at the same time
used to incorrectly drop changes.

* sh/p4-multi-depot:
  git-p4: reduce number of server queries for fetches
  git-p4: support multiple depot paths in p4 submit
  git-p4: failing test case for skipping changes with multiple depots

Author: gitster

git-p4.py

@@ -822,39 +822,37 @@ def p4ChangesForPaths(depotPaths, changeRange, requestedBlockSize):
                 die("cannot use --changes-block-size with non-numeric revisions")
             block_size = None
 
-    # Accumulate change numbers in a dictionary to avoid duplicates
-    changes = {}
+    changes = []
 
-    for p in depotPaths:
-        # Retrieve changes a block at a time, to prevent running
-        # into a MaxResults/MaxScanRows error from the server.
+    # Retrieve changes a block at a time, to prevent running
+    # into a MaxResults/MaxScanRows error from the server.
 
-        while True:
-            cmd = ['changes']
+    while True:
+        cmd = ['changes']
 
-            if block_size:
-                end = min(changeEnd, changeStart + block_size)
-                revisionRange = "%d,%d" % (changeStart, end)
-            else:
-                revisionRange = "%s,%s" % (changeStart, changeEnd)
+        if block_size:
+            end = min(changeEnd, changeStart + block_size)
+            revisionRange = "%d,%d" % (changeStart, end)
+        else:
+            revisionRange = "%s,%s" % (changeStart, changeEnd)
 
+        for p in depotPaths:
             cmd += ["%s...@%s" % (p, revisionRange)]
 
-            for line in p4_read_pipe_lines(cmd):
-                changeNum = int(line.split(" ")[1])
-                changes[changeNum] = True
+        # Insert changes in chronological order
+        for line in reversed(p4_read_pipe_lines(cmd)):
+            changes.append(int(line.split(" ")[1]))
 
-            if not block_size:
-                break
+        if not block_size:
+            break
 
-            if end >= changeEnd:
-                break
+        if end >= changeEnd:
+            break
 
-            changeStart = end + 1
+        changeStart = end + 1
 
-    changelist = changes.keys()
-    changelist.sort()
-    return changelist
+    changes = sorted(changes)
+    return changes
 
 def p4PathStartsWith(path, prefix):
     # This method tries to remedy a potential mixed-case issue:
@@ -1458,6 +1456,8 @@ def prepareSubmitTemplate(self):
            Remove lines in the Files section that show changes to files
            outside the depot path we're committing into."""
 
+        [upstream, settings] = findUpstreamBranchPoint()
+
         template = ""
         inFilesSection = False
         for line in p4_read_pipe_lines(['change', '-o']):
@@ -1470,8 +1470,13 @@ def prepareSubmitTemplate(self):
                     lastTab = path.rfind("\t")
                     if lastTab != -1:
                         path = path[:lastTab]
-                        if not p4PathStartsWith(path, self.depotPath):
-                            continue
+                        if settings.has_key('depot-paths'):
+                            if not [p for p in settings['depot-paths']
+                                    if p4PathStartsWith(path, p)]:
+                                continue
+                        else:
+                            if not p4PathStartsWith(path, self.depotPath):
+                                continue
                 else:
                     inFilesSection = False
             else:

t/t9818-git-p4-block.sh

@@ -84,7 +84,7 @@ p4_add_file() {
 	(cd "$cli" &&
 		>$1 &&
 		p4 add $1 &&
-		p4 submit -d "Added a file" $1
+		p4 submit -d "Added file $1" $1
 	)
 }
 
@@ -112,6 +112,32 @@ test_expect_success 'Syncing files' '
 	)
 '
 
+# Handling of multiple depot paths:
+#    git p4 clone //depot/pathA //depot/pathB
+#
+test_expect_success 'Create a repo with multiple depot paths' '
+	client_view "//depot/pathA/... //client/pathA/..." \
+		    "//depot/pathB/... //client/pathB/..." &&
+	mkdir -p "$cli/pathA" "$cli/pathB" &&
+	for p in pathA pathB
+	do
+		for i in $(test_seq 1 10)
+		do
+			p4_add_file "$p/file$p$i"
+		done
+	done
+'
+
+test_expect_success 'Clone repo with multiple depot paths' '
+	(
+		cd "$git" &&
+		git p4 clone --changes-block-size=4 //depot/pathA@all //depot/pathB@all \
+			--destination=dest &&
+		ls -1 dest >log &&
+		test_line_count = 20 log
+	)
+'
+
 test_expect_success 'kill p4d' '
 	kill_p4d
 '