[PATCH v2 2/7] git-p4: match branches case insensitively if configured

["Mazo, Andrey" <amazo@xxxxxxxxxxxxxx>]

git-p4 knows how to handle case insensitivity in file paths
if core.ignorecase is set.
However, when determining a branch for a file,
it still does a case-sensitive prefix match.
This may result in some file changes to be lost on import.

For example, given the following commits
 1. add //depot/main/file1
 2. add //depot/DirA/file2
 3. add //depot/dira/file3
 4. add //depot/DirA/file4
and "branchList = main:DirA" branch mapping,
commit 3 will be lost.

So, do branch search case insensitively if running with core.ignorecase set.
Teach splitFilesIntoBranches() to use the p4PathStartsWith() function
for path prefix matches instead of always case-sensitive match.

Signed-off-by: Andrey Mazo <amazo@xxxxxxxxxxxxxx>
---
 git-p4.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/git-p4.py b/git-p4.py
index c0a3068b6f..91c610f960 100755
--- a/git-p4.py
+++ b/git-p4.py
@@ -2721,11 +2721,11 @@ def splitFilesIntoBranches(self, commit):
                 relPath = self.stripRepoPath(path, self.depotPaths)
 
             for branch in self.knownBranches.keys():
                 # add a trailing slash so that a commit into qt/4.2foo
                 # doesn't end up in qt/4.2, e.g.
-                if relPath.startswith(branch + "/"):
+                if p4PathStartsWith(relPath, branch + "/"):
                     if branch not in branches:
                         branches[branch] = []
                     branches[branch].append(file)
                     break
 
-- 
2.19.2