* [PATCHv1 1/1] git-p4: better error reporting when p4 fails
2018-06-05 8:55 [PATCHv1 0/1] git-p4: better error reporting Luke Diamand
@ 2018-06-05 8:55 ` Luke Diamand
[not found] ` <777690205.383623.1528195798488@mail.yahoo.com>
0 siblings, 1 reply; 4+ messages in thread
From: Luke Diamand @ 2018-06-05 8:55 UTC (permalink / raw)
To: git
Cc: SZEDER Gábor, Romain Merland, Miguel Torroja,
viniciusalexandre, Lars Schneider, Luke Diamand
Currently when p4 fails to run, git-p4 just crashes with an obscure
error message.
For example, if the P4 ticket has expired, you get:
Error: Cannot locate perforce checkout of <path> in client view
This change checks whether git-p4 can talk to the Perforce server when
the first P4 operation is attempted, and tries to print a meaningful
error message if it fails.
Signed-off-by: Luke Diamand <luke@diamand.org>
---
git-p4.py | 55 +++++++++++++++++++++++++++++++++
t/t9833-errors.sh | 78 +++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 133 insertions(+)
create mode 100755 t/t9833-errors.sh
diff --git a/git-p4.py b/git-p4.py
index b9e79f1d8b..66652f8280 100755
--- a/git-p4.py
+++ b/git-p4.py
@@ -50,6 +50,8 @@ def __str__(self):
# Grab changes in blocks of this many revisions, unless otherwise requested
defaultBlockSize = 512
+p4_access_checked = False
+
def p4_build_cmd(cmd):
"""Build a suitable p4 command line.
@@ -91,6 +93,13 @@ def p4_build_cmd(cmd):
real_cmd = ' '.join(real_cmd) + ' ' + cmd
else:
real_cmd += cmd
+
+ # now check that we can actually talk to the server
+ global p4_access_checked
+ if not p4_access_checked:
+ p4_access_checked = True
+ p4_check_access()
+
return real_cmd
def git_dir(path):
@@ -264,6 +273,52 @@ def p4_system(cmd):
if retcode:
raise CalledProcessError(retcode, real_cmd)
+def die_bad_access(s):
+ die("failure accessing depot: {0}".format(s.rstrip()))
+
+def p4_check_access(min_expiration=1):
+ """ Check if we can access Perforce - account still logged in
+ """
+ results = p4CmdList(["login", "-s"])
+
+ if len(results) == 0:
+ # should never get here: always get either some results, or a p4ExitCode
+ assert("could not parse response from perforce")
+
+ result = results[0]
+
+ if 'p4ExitCode' in result:
+ # p4 returned non-zero status, e.g. P4PORT invalid, or p4 not in path
+ die_bad_access("could not run p4")
+
+ code = result.get("code")
+ if not code:
+ # we get here if we couldn't connect and there was nothing to unmarshal
+ die_bad_access("could not connect")
+
+ elif code == "stat":
+ expiry = result.get("TicketExpiration")
+ if expiry:
+ expiry = int(expiry)
+ if expiry > min_expiration:
+ # ok to carry on
+ return
+ else:
+ die_bad_access("perforce ticket expires in {0} seconds".format(expiry))
+
+ else:
+ # account without a timeout - all ok
+ return
+
+ elif code == "error":
+ data = result.get("data")
+ if data:
+ die_bad_access("p4 error: {0}".format(data))
+ else:
+ die_bad_access("unknown error")
+ else:
+ die_bad_access("unknown error code {0}".format(code))
+
_p4_version_string = None
def p4_version_string():
"""Read the version string, showing just the last line, which
diff --git a/t/t9833-errors.sh b/t/t9833-errors.sh
new file mode 100755
index 0000000000..9ba892de7a
--- /dev/null
+++ b/t/t9833-errors.sh
@@ -0,0 +1,78 @@
+#!/bin/sh
+
+test_description='git p4 errors'
+
+. ./lib-git-p4.sh
+
+test_expect_success 'start p4d' '
+ start_p4d
+'
+
+test_expect_success 'add p4 files' '
+ (
+ cd "$cli" &&
+ echo file1 >file1 &&
+ p4 add file1 &&
+ p4 submit -d "file1"
+ )
+'
+
+# after this test, the default user requires a password
+test_expect_success 'error handling' '
+ git p4 clone --dest="$git" //depot@all &&
+ (
+ cd "$git" &&
+ P4PORT=: test_must_fail git p4 submit 2>errmsg
+ ) &&
+ p4 passwd -P newpassword &&
+ (
+ P4PASSWD=badpassword test_must_fail git p4 clone //depot/foo 2>errmsg &&
+ grep -q "failure accessing depot.*P4PASSWD" errmsg
+ )
+'
+
+test_expect_success 'ticket logged out' '
+ P4TICKETS="$cli/tickets" &&
+ echo "newpassword" | p4 login &&
+ (
+ cd "$git" &&
+ test_commit "ticket-auth-check" &&
+ p4 logout &&
+ test_must_fail git p4 submit 2>errmsg &&
+ grep -q "failure accessing depot" errmsg
+ )
+'
+
+test_expect_success 'create group with short ticket expiry' '
+ P4TICKETS="$cli/tickets" &&
+ echo "newpassword" | p4 login &&
+ p4_add_user short_expiry_user &&
+ p4 -u short_expiry_user passwd -P password &&
+ p4 group -i <<-EOF &&
+ Group: testgroup
+ Timeout: 3
+ Users: short_expiry_user
+ EOF
+
+ p4 users | grep short_expiry_user
+'
+
+test_expect_success 'git operation with expired ticket' '
+ P4TICKETS="$cli/tickets" &&
+ P4USER=short_expiry_user &&
+ echo "password" | p4 login &&
+ (
+ cd "$git" &&
+ git p4 sync &&
+ sleep 5 &&
+ test_must_fail git p4 sync 2>errmsg &&
+ grep "failure accessing depot" errmsg
+ )
+'
+
+test_expect_success 'kill p4d' '
+ kill_p4d
+'
+
+
+test_done
--
2.17.0.392.gdeb1a6e9b7
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