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From: "Ben Keene via GitGitGadget" <gitgitgadget@gmail.com>
To: git@vger.kernel.org
Cc: Ben Keene <seraphire@gmail.com>, Ben Keene <seraphire@gmail.com>
Subject: [PATCH v3 4/5] git-p4: restructure code in submit
Date: Thu, 06 Feb 2020 15:15:47 +0000	[thread overview]
Message-ID: <662b864d70fe29ed12f585a57ca9bd6a9e226aa4.1581002149.git.gitgitgadget@gmail.com> (raw)
In-Reply-To: <pull.698.v3.git.git.1581002149.gitgitgadget@gmail.com>

From: Ben Keene <seraphire@gmail.com>

In preparation for adding new hooks to the submit method of git-p4,
restructure the applyCommit function in the P4Submit class.  Make the
following changes:

* Move all the code after the definition of submitted = False into the
  Try-Finally block. This ensures that any error that occurs will
  properly recover.  This is not necessary with the current code because
  none of it should throw an exception, however the next set of changes
  will introduce exceptional code.

  Existing flow control can remain as defined - the if-block for
  prepare-p4-only sets the local variable "submitted" to True and exits
  the function. New early exits, leave submitted set to False so the
  Finally block will undo changes to the P4 workspace.

* Make the small usability change of adding an empty string to the
  print statements displayed to the user when the prepare-p4-only option
  is selected.  On Windows, the command print() may display a set of
  parentheses "()" to the user when the print() function is called with
  no parameters. By supplying an empty string, the intended blank line
  will print as expected.

* Fix a small bug when the submittedTemplate is edited by the user
  and all content in the file is removed. The existing code will throw
  an exception if the separateLine is not found in the file. Change this
  code to test for the separator line using a find() test first and only
  split on the separator if it is found.

* Additionally, add the new behavior that if the changelist file has
  been completely emptied that the Submit action for this changelist
  will be aborted.

Signed-off-by: Ben Keene <seraphire@gmail.com>
---
 git-p4.py | 92 ++++++++++++++++++++++++++++++-------------------------
 1 file changed, 51 insertions(+), 41 deletions(-)

diff --git a/git-p4.py b/git-p4.py
index b377484464..1d15ea7464 100755
--- a/git-p4.py
+++ b/git-p4.py
@@ -2101,47 +2101,47 @@ def applyCommit(self, id):
         tmpFile.write(submitTemplate)
         tmpFile.close()
 
-        if self.prepare_p4_only:
-            #
-            # Leave the p4 tree prepared, and the submit template around
-            # and let the user decide what to do next
-            #
-            print()
-            print("P4 workspace prepared for submission.")
-            print("To submit or revert, go to client workspace")
-            print("  " + self.clientPath)
-            print()
-            print("To submit, use \"p4 submit\" to write a new description,")
-            print("or \"p4 submit -i <%s\" to use the one prepared by" \
-                  " \"git p4\"." % fileName)
-            print("You can delete the file \"%s\" when finished." % fileName)
-
-            if self.preserveUser and p4User and not self.p4UserIsMe(p4User):
-                print("To preserve change ownership by user %s, you must\n" \
-                      "do \"p4 change -f <change>\" after submitting and\n" \
-                      "edit the User field.")
-            if pureRenameCopy:
-                print("After submitting, renamed files must be re-synced.")
-                print("Invoke \"p4 sync -f\" on each of these files:")
-                for f in pureRenameCopy:
-                    print("  " + f)
-
-            print()
-            print("To revert the changes, use \"p4 revert ...\", and delete")
-            print("the submit template file \"%s\"" % fileName)
-            if filesToAdd:
-                print("Since the commit adds new files, they must be deleted:")
-                for f in filesToAdd:
-                    print("  " + f)
-            print()
-            return True
-
-        #
-        # Let the user edit the change description, then submit it.
-        #
         submitted = False
 
         try:
+
+            if self.prepare_p4_only:
+                #
+                # Leave the p4 tree prepared, and the submit template around
+                # and let the user decide what to do next
+                #
+                submitted = True
+                print("")
+                print("P4 workspace prepared for submission.")
+                print("To submit or revert, go to client workspace")
+                print("  " + self.clientPath)
+                print("")
+                print("To submit, use \"p4 submit\" to write a new description,")
+                print("or \"p4 submit -i <%s\" to use the one prepared by" \
+                      " \"git p4\"." % fileName)
+                print("You can delete the file \"%s\" when finished." % fileName)
+
+                if self.preserveUser and p4User and not self.p4UserIsMe(p4User):
+                    print("To preserve change ownership by user %s, you must\n" \
+                          "do \"p4 change -f <change>\" after submitting and\n" \
+                          "edit the User field.")
+                if pureRenameCopy:
+                    print("After submitting, renamed files must be re-synced.")
+                    print("Invoke \"p4 sync -f\" on each of these files:")
+                    for f in pureRenameCopy:
+                        print("  " + f)
+
+                print("")
+                print("To revert the changes, use \"p4 revert ...\", and delete")
+                print("the submit template file \"%s\"" % fileName)
+                if filesToAdd:
+                    print("Since the commit adds new files, they must be deleted:")
+                    for f in filesToAdd:
+                        print("  " + f)
+                print("")
+                sys.stdout.flush()
+                return True
+
             if self.edit_template(fileName):
                 # read the edited message and submit
                 tmpFile = open(fileName, "rb")
@@ -2149,7 +2149,15 @@ def applyCommit(self, id):
                 tmpFile.close()
                 if self.isWindows:
                     message = message.replace("\r\n", "\n")
-                submitTemplate = message[:message.index(separatorLine)]
+                if message.find(separatorLine) <> -1:
+                    submitTemplate = message[:message.index(separatorLine)]
+                else:
+                    submitTemplate = message
+
+                if len(submitTemplate.strip()) == 0:
+                    print("Changelist is empty, aborting this changelist.")
+                    sys.stdout.flush()
+                    return False
 
                 if update_shelve:
                     p4_write_pipe(['shelve', '-r', '-i'], submitTemplate)
@@ -2173,19 +2181,21 @@ def applyCommit(self, id):
                 submitted = True
 
         finally:
-            # skip this patch
+            # Revert changes if we skip this patch
             if not submitted or self.shelve:
                 if self.shelve:
                     print ("Reverting shelved files.")
                 else:
                     print ("Submission cancelled, undoing p4 changes.")
+                sys.stdout.flush()
                 for f in editedFiles | filesToDelete:
                     p4_revert(f)
                 for f in filesToAdd:
                     p4_revert(f)
                     os.remove(f)
 
-        os.remove(fileName)
+            if not self.prepare_p4_only:
+                os.remove(fileName)
         return submitted
 
     # Export git tags as p4 labels. Create a p4 label and then tag
-- 
gitgitgadget


  parent reply	other threads:[~2020-02-06 15:15 UTC|newest]

Thread overview: 57+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-20 21:17 [PATCH] git-p4: Add hook p4-pre-pedit-changelist Ben Keene via GitGitGadget
2020-01-21 23:05 ` Junio C Hamano
2020-01-29 10:13   ` Luke Diamand
2020-01-29 19:05     ` Junio C Hamano
2020-01-29 21:23       ` Luke Diamand
2020-01-30  1:37       ` Junio C Hamano
2020-01-30 14:20         ` Ben Keene
2020-01-30 18:39           ` Junio C Hamano
2020-01-30  1:51 ` Bryan Turner
2020-01-30 13:45   ` Ben Keene
2020-01-31 21:58 ` [PATCH v2 0/4] git-p4: add hook p4-pre-edit-changelist Ben Keene via GitGitGadget
2020-01-31 21:58   ` [PATCH v2 1/4] git-p4: rewrite prompt to be Windows compatible Ben Keene via GitGitGadget
2020-01-31 21:58   ` [PATCH v2 2/4] git-p4: create new method gitRunHook Ben Keene via GitGitGadget
2020-02-04 20:40     ` Junio C Hamano
2020-02-05 19:56       ` Ben Keene
2020-02-05 21:42         ` Junio C Hamano
2020-02-06 14:00           ` Ben Keene
2020-02-06 18:26             ` Junio C Hamano
2020-01-31 21:58   ` [PATCH v2 3/4] git-p4: add hook p4-pre-edit-changelist Ben Keene via GitGitGadget
2020-01-31 21:58   ` [PATCH v2 4/4] git-p4: add p4 submit hooks Ben Keene via GitGitGadget
2020-02-04 20:50     ` Junio C Hamano
2020-02-06 15:15   ` [PATCH v3 0/5] git-p4: add hook p4-pre-edit-changelist Ben Keene via GitGitGadget
2020-02-06 15:15     ` [PATCH v3 1/5] git-p4: rewrite prompt to be Windows compatible Ben Keene via GitGitGadget
2020-02-06 19:28       ` Junio C Hamano
2020-02-10 15:49         ` Ben Keene
2020-02-06 15:15     ` [PATCH v3 2/5] git-p4: create new function run_git_hook Ben Keene via GitGitGadget
2020-02-06 19:42       ` Junio C Hamano
2020-02-10 19:03         ` Ben Keene
2020-02-06 15:15     ` [PATCH v3 3/5] git-p4: add --no-verify option Ben Keene via GitGitGadget
2020-02-06 19:42       ` Junio C Hamano
2020-02-10 16:21         ` Ben Keene
2020-02-06 15:15     ` Ben Keene via GitGitGadget [this message]
2020-02-06 15:15     ` [PATCH v3 5/5] git-p4: add p4 submit hooks Ben Keene via GitGitGadget
2020-02-10 22:06     ` [PATCH v4 0/6] git-p4: add hooks for p4-changelist Ben Keene via GitGitGadget
2020-02-10 22:06       ` [PATCH v4 1/6] git-p4: rewrite prompt to be Windows compatible Ben Keene via GitGitGadget
2020-02-10 22:06       ` [PATCH v4 2/6] git-p4: create new function run_git_hook Ben Keene via GitGitGadget
2020-02-10 22:24         ` Junio C Hamano
2020-02-10 22:06       ` [PATCH v4 3/6] git-p4: add --no-verify option Ben Keene via GitGitGadget
2020-02-10 22:06       ` [PATCH v4 4/6] git-p4: restructure code in submit Ben Keene via GitGitGadget
2020-02-10 22:06       ` [PATCH v4 5/6] git-p4: add p4 submit hooks Ben Keene via GitGitGadget
2020-02-10 22:06       ` [PATCH v4 6/6] git-4: add RCS keyword status message Ben Keene via GitGitGadget
2020-02-11 18:57       ` [PATCH v5 0/7] git-p4: add hooks for p4-changelist Ben Keene via GitGitGadget
2020-02-11 18:57         ` [PATCH v5 1/7] git-p4: rewrite prompt to be Windows compatible Ben Keene via GitGitGadget
2020-02-11 18:57         ` [PATCH v5 2/7] git-p4: create new function run_git_hook Ben Keene via GitGitGadget
2020-02-11 18:58         ` [PATCH v5 3/7] git-p4: add p4-pre-submit exit text Ben Keene via GitGitGadget
2020-02-11 18:58         ` [PATCH v5 4/7] git-p4: add --no-verify option Ben Keene via GitGitGadget
2020-02-11 18:58         ` [PATCH v5 5/7] git-p4: restructure code in submit Ben Keene via GitGitGadget
2020-02-11 18:58         ` [PATCH v5 6/7] git-p4: add p4 submit hooks Ben Keene via GitGitGadget
2020-02-11 18:58         ` [PATCH v5 7/7] git-p4: add RCS keyword status message Ben Keene via GitGitGadget
2020-02-14 14:44         ` [PATCH v6 0/7] git-p4: add hooks for p4-changelist Ben Keene via GitGitGadget
2020-02-14 14:44           ` [PATCH v6 1/7] git-p4: rewrite prompt to be Windows compatible Ben Keene via GitGitGadget
2020-02-14 14:44           ` [PATCH v6 2/7] git-p4: create new function run_git_hook Ben Keene via GitGitGadget
2020-02-14 14:44           ` [PATCH v6 3/7] git-p4: add p4-pre-submit exit text Ben Keene via GitGitGadget
2020-02-14 14:44           ` [PATCH v6 4/7] git-p4: add --no-verify option Ben Keene via GitGitGadget
2020-02-14 14:44           ` [PATCH v6 5/7] git-p4: restructure code in submit Ben Keene via GitGitGadget
2020-02-14 14:44           ` [PATCH v6 6/7] git-p4: add p4 submit hooks Ben Keene via GitGitGadget
2020-02-14 14:44           ` [PATCH v6 7/7] git-p4: add RCS keyword status message Ben Keene via GitGitGadget

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