threads / patch / 26739

patch, 3 partsgit-p4: Teach gitConfig method about arguments.

Subject: [PATCH 1/3] git-p4: Teach gitConfig method about arguments.

## tl;dr

4 messages between Mar 15, 2011 and Mar 15, 2011. Diffs are folded; open one to read it.

replies: 3people: 2as markdown or json

Tor Arvid Lund· Mar 15, 2011, 12:08 UTC · lore

With this patch, it is possible to call the gitConfig method with an optional argument string, which will be passed to the "git config" executable. For instance:

gitConfig("core.ignorecase", "--bool")

will ensure that you get the value "true", and won't have to check the returned value for [1, true, on, yes].

Signed-off-by: Tor Arvid Lund <torarvid@gmail.com>
---
 contrib/fast-import/git-p4 |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)
Show changes to contrib/fast-import/git-p4 +6 −2
diff --git a/contrib/fast-import/git-p4 b/contrib/fast-import/git-p4
index 7cb479c..4425220 100755
--- a/contrib/fast-import/git-p4
+++ b/contrib/fast-import/git-p4
@@ -333,9 +333,13 @@ def gitBranchExists(branch):
     return proc.wait() == 0;
 
 _gitConfig = {}
-def gitConfig(key):
+def gitConfig(key, args = None): # set args to "--bool", for instance
     if not _gitConfig.has_key(key):
-        _gitConfig[key] = read_pipe("git config %s" % key, ignore_error=True).strip()
+        argsFilter = ""
+        if args != None:
+            argsFilter = "%s " % args
+        cmd = "git config %s%s" % (argsFilter, key)
+        _gitConfig[key] = read_pipe(cmd, ignore_error=True).strip()
     return _gitConfig[key]
 
 def p4BranchesInGit(branchesAreInRemotes = True):
-- 
1.7.3.1.68.g06779.dirty
Tor Arvid Lund· Mar 15, 2011, 12:08 UTC · re: Tor Arvid Lund · lore

[PATCH 2/3] Teach git-p4 to ignore case in perforce filenames if configured.

When files are added to perforce, the path to that file has whichever case configuration that exists on the machine of the user who added the file. What does that mean? It means that when Alice adds a file

//depot/DirA/FileA.txt
... and Bob adds:
//depot/dirA/FileB.txt

... we may or may not get a problem. If a user sets the config variable git-p4.ignorecase to "true", we will consider //depot/DirA and //depot/dirA to be the same directory.

Signed-off-by: Tor Arvid Lund <torarvid@gmail.com>
---
 contrib/fast-import/git-p4 |   27 ++++++++++++++++++++-------
 1 files changed, 20 insertions(+), 7 deletions(-)
Show changes to contrib/fast-import/git-p4 +20 −7
diff --git a/contrib/fast-import/git-p4 b/contrib/fast-import/git-p4
index 4425220..d47596f 100755
--- a/contrib/fast-import/git-p4
+++ b/contrib/fast-import/git-p4
@@ -456,6 +456,19 @@ def p4ChangesForPaths(depotPaths, changeRange):
     changelist.sort()
     return changelist
 
+def p4PathStartsWith(path, prefix):
+    # This method tries to remedy a potential mixed-case issue:
+    #
+    # If UserA adds  //depot/DirA/file1
+    # and UserB adds //depot/dira/file2
+    #
+    # we may or may not have a problem. If you have core.ignorecase=true,
+    # we treat DirA and dira as the same directory
+    ignorecase = gitConfig("core.ignorecase", "--bool") == "true"
+    if ignorecase:
+        return path.lower().startswith(prefix.lower())
+    return path.startswith(prefix)
+
 class Command:
     def __init__(self):
         self.usage = "usage: %prog [options]"
@@ -603,7 +616,7 @@ class P4Submit(Command):
                     lastTab = path.rfind("\t")
                     if lastTab != -1:
                         path = path[:lastTab]
-                        if not path.startswith(self.depotPath):
+                        if not p4PathStartsWith(path, self.depotPath):
                             continue
                 else:
                     inFilesSection = False
@@ -941,11 +954,11 @@ class P4Sync(Command):
             path =  commit["depotFile%s" % fnum]
 
             if [p for p in self.cloneExclude
-                if path.startswith (p)]:
+                if p4PathStartsWith(path, p)]:
                 found = False
             else:
                 found = [p for p in self.depotPaths
-                         if path.startswith (p)]
+                         if p4PathStartsWith(path, p)]
             if not found:
                 fnum = fnum + 1
                 continue
@@ -980,7 +993,7 @@ class P4Sync(Command):
             prefixes = [re.sub("^(//[^/]+/).*", r'\1', prefixes[0])]
 
         for p in prefixes:
-            if path.startswith(p):
+            if p4PathStartsWith(path, p):
                 path = path[len(p):]
 
         return path
@@ -991,7 +1004,7 @@ class P4Sync(Command):
         while commit.has_key("depotFile%s" % fnum):
             path =  commit["depotFile%s" % fnum]
             found = [p for p in self.depotPaths
-                     if path.startswith (p)]
+                     if p4PathStartsWith(path, p)]
             if not found:
                 fnum = fnum + 1
                 continue
@@ -1144,7 +1157,7 @@ class P4Sync(Command):
         # create a commit.
         new_files = []
         for f in files:
-            if [p for p in branchPrefixes if f['path'].startswith(p)]:
+            if [p for p in branchPrefixes if p4PathStartsWith(f['path'], p)]:
                 new_files.append (f)
             else:
                 sys.stderr.write("Ignoring file outside of prefix: %s\n" % path)
@@ -1308,7 +1321,7 @@ class P4Sync(Command):
                 source = paths[0]
                 destination = paths[1]
                 ## HACK
-                if source.startswith(self.depotPaths[0]) and destination.startswith(self.depotPaths[0]):
+                if p4PathStartsWith(source, self.depotPaths[0]) and p4PathStartsWith(destination, self.depotPaths[0]):
                     source = source[len(self.depotPaths[0]):-4]
                     destination = destination[len(self.depotPaths[0]):-4]
 
-- 
1.7.3.1.68.g06779.dirty
Tor Arvid Lund· Mar 15, 2011, 12:08 UTC · re: Tor Arvid Lund · lore

[PATCH 3/3] git-p4: Fix error message crash in P4Sync.commit.

There is an error message that crashes the script because of an invalid ref to the non-existing "path" variable. It is almost never printed, which would explain why nobody encountered this problem before... But anyway, this oneliner fixes it.

Signed-off-by: Tor Arvid Lund <torarvid@gmail.com>
---
 contrib/fast-import/git-p4 |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
Show changes to contrib/fast-import/git-p4 +1 −1
diff --git a/contrib/fast-import/git-p4 b/contrib/fast-import/git-p4
index d47596f..47ba7ad 100755
--- a/contrib/fast-import/git-p4
+++ b/contrib/fast-import/git-p4
@@ -1160,7 +1160,7 @@ class P4Sync(Command):
             if [p for p in branchPrefixes if p4PathStartsWith(f['path'], p)]:
                 new_files.append (f)
             else:
-                sys.stderr.write("Ignoring file outside of prefix: %s\n" % path)
+                sys.stderr.write("Ignoring file outside of prefix: %s\n" % f['path'])
 
         self.gitStream.write("commit %s\n" % branch)
 #        gitStream.write("mark :%s\n" % details["change"])
-- 
1.7.3.1.68.g06779.dirty

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