Re: [PATCH] Bug fix: ensure P4 "err" is displayed when exception is raised.
- From
Karthik Nayak <karthik.188@gmail.com>
- Date
- May 6, 2024, 12:01 UTC
- Message-ID
- <CAOLa=ZQUEHO0oCcccgHQqzvgXkK-gMOqhpCQ2fGTLLMBPB+Pag@mail.gmail.com>
- In-Reply-To
- <pull.1668.git.git.1714802221671.gitgitgadget@gmail.com>
Hello Fahad,
"Fahad Alrashed via GitGitGadget" <gitgitgadget@gmail.com> writes:
> From: Fahad Alrashed <fahad@keylock.net> > > Bug fix: During "git p4 clone" if p4 process returns
Nit: I haven't seen us use a prefix for the commit message. Also we use a max line length of 72 characters (see .editorconfig). The commit message seems to be wrapped at a much lower threshold.
> an error from the server, it will store it in variable
perhaps `in the 'err' variable` or `in a variable 'err'`.
> "err". The it will send a text command "die-now" to
s/The/Then
Show 63 quoted lines
> git-fast-import. However, git-fast-import raises an
> exception: "fatal: Unsupported command: die-now"
> and err is never displayed. This patch ensures that
> err is dispayed using "finally:"
>
> Signed-off-by: Fahad Alrashed <fahad@keylock.net>
> ---
> In git p4, git fast-import fails from die-now command and err (from
> Perforce) is not shown
>
> When importing from Perforce using git p4 clone <depot location>,
> cloning works fine until Perforce command p4 raises an error. This error
> message is stored in err variable then git-fast-import is sent a die-now
> command to kill it. An exception is raised fatal: Unsupported command:
> die-now.
>
> This patch forces python to call die() with the err message returned
> from Perforce.
>
> This commit fixes the root cause of a bug that took me hours to find.
> I'm sure many faced the cryptic error and declared that git-p4 is not
> working for them.
>
> Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-git-1668%2Falrashedf%2Fmaster-v1
> Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-git-1668/alrashedf/master-v1
> Pull-Request: https://github.com/git/git/pull/1668
>
> git-p4.py | 24 +++++++++++++-----------
> 1 file changed, 13 insertions(+), 11 deletions(-)
>
> diff --git a/git-p4.py b/git-p4.py
> index 28ab12c72b6..f1ab31d5403 100755
> --- a/git-p4.py
> +++ b/git-p4.py
> @@ -3253,17 +3253,19 @@ def streamP4FilesCb(self, marshalled):
> if self.stream_have_file_info:
> if "depotFile" in self.stream_file:
> f = self.stream_file["depotFile"]
> - # force a failure in fast-import, else an empty
> - # commit will be made
> - self.gitStream.write("\n")
> - self.gitStream.write("die-now\n")
> - self.gitStream.close()
> - # ignore errors, but make sure it exits first
> - self.importProcess.wait()
> - if f:
> - die("Error from p4 print for %s: %s" % (f, err))
> - else:
> - die("Error from p4 print: %s" % err)
> + try:
> + # force a failure in fast-import, else an empty
> + # commit will be made
> + self.gitStream.write("\n")
> + self.gitStream.write("die-now\n")
> + self.gitStream.close()
> + # ignore errors, but make sure it exits first
> + self.importProcess.wait()
> + finally:
> + if f:
> + die("Error from p4 print for %s: %s" % (f, err))
> + else:
> + die("Error from p4 print: %s" % err)
>This part looks good.
Show 6 quoted lines
> if 'depotFile' in marshalled and self.stream_have_file_info: > # start of a new file - output the old one first > > base-commit: 235986be822c9f8689be2e9a0b7804d0b1b6d821 > -- > gitgitgadget
Thanks, Karthik