view tests/test-parents.out @ 9851:9e7b2c49d25d

Make it possible to debug failed hook imports via use of --traceback

Prior to this change, if a Python hook module failed to load (e.g. due
to an import error or path problem), it was impossible to figure out
why the error occurred, because the ImportErrors that got raised were
caught but never displayed.

If run with --traceback or ui.traceback=True, hg now prints tracebacks
of both of the ImportError instances that get raised before it bails.

% no working directory
adding a
adding b
adding c
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
adding c
created new head
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
% hg parents
changeset:   3:02d851b7e549
user:        test
date:        Thu Jan 01 00:00:03 1970 +0000
summary:     c

% hg parents a
changeset:   1:d786049f033a
user:        test
date:        Thu Jan 01 00:00:01 1970 +0000
summary:     a

% hg parents c, single revision
changeset:   3:02d851b7e549
user:        test
date:        Thu Jan 01 00:00:03 1970 +0000
summary:     c

% hg parents -r 3 c
abort: 'c' not found in manifest!
% hg parents -r 2
changeset:   1:d786049f033a
user:        test
date:        Thu Jan 01 00:00:01 1970 +0000
summary:     a

% hg parents -r 2 a
changeset:   1:d786049f033a
user:        test
date:        Thu Jan 01 00:00:01 1970 +0000
summary:     a

% hg parents -r 2 ../a
abort: ../a not under root
% cd dir; hg parents -r 2 ../a
changeset:   1:d786049f033a
user:        test
date:        Thu Jan 01 00:00:01 1970 +0000
summary:     a

% hg parents -r 2 path:a
changeset:   1:d786049f033a
user:        test
date:        Thu Jan 01 00:00:01 1970 +0000
summary:     a

% hg parents -r 2 glob:a
abort: can only specify an explicit filename
% merge working dir with 2 parents, hg parents c
merging c
0 files updated, 1 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
changeset:   3:02d851b7e549
user:        test
date:        Thu Jan 01 00:00:03 1970 +0000
summary:     c

changeset:   4:48cee28d4b4e
tag:         tip
parent:      1:d786049f033a
user:        test
date:        Thu Jan 01 00:00:04 1970 +0000
summary:     c2

% merge working dir with 1 parent, hg parents
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
changeset:   2:6cfac479f009
user:        test
date:        Thu Jan 01 00:00:02 1970 +0000
summary:     b

changeset:   4:48cee28d4b4e
tag:         tip
parent:      1:d786049f033a
user:        test
date:        Thu Jan 01 00:00:04 1970 +0000
summary:     c2

% merge working dir with 1 parent, hg parents c
changeset:   4:48cee28d4b4e
tag:         tip
parent:      1:d786049f033a
user:        test
date:        Thu Jan 01 00:00:04 1970 +0000
summary:     c2