tests: check availability of pyflakes by trying to import pyflakes module
Since e397c6d74652, we use the pyflakes module instead of the pyflakes
executable. As was pointed out during the review, the hghave check can be
rewritten to try to import the pyflakes module instead of spawning a new
subprocess.
Set up repo
$ cat << EOF >> $HGRCPATH
> [ui]
> origbackuppath=.hg/origbackups
> [merge]
> checkunknown=warn
> EOF
$ hg init repo
$ cd repo
$ echo base > base
$ hg add base
$ hg commit -m "base"
Make a dir named b that contains a file, and a file named d
$ mkdir -p b
$ echo c1 > b/c
$ echo d1 > d
$ hg add b/c d
$ hg commit -m "c1"
$ hg bookmark c1
Peform an update that causes b/c to be backed up
$ hg up -q 0
$ mkdir -p b
$ echo c2 > b/c
$ hg up --verbose c1
resolving manifests
b/c: replacing untracked file
getting b/c
creating directory: $TESTTMP/repo/.hg/origbackups/b
getting d
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
(activating bookmark c1)
$ test -f .hg/origbackups/b/c
Make files named b and d
$ hg up -q 0
$ echo b1 > b
$ echo d2 > d
$ hg add b d
$ hg commit -m b1
created new head
$ hg bookmark b1
Perform an update that causes b to be backed up - it should replace the backup b dir
$ hg up -q 0
$ echo b2 > b
$ hg up --verbose b1
resolving manifests
b: replacing untracked file
getting b
removing conflicting directory: $TESTTMP/repo/.hg/origbackups/b
getting d
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
(activating bookmark b1)
$ test -f .hg/origbackups/b
Perform an update the causes b/c to be backed up again - it should replace the backup b file
$ hg up -q 0
$ mkdir b
$ echo c3 > b/c
$ hg up --verbose c1
resolving manifests
b/c: replacing untracked file
getting b/c
creating directory: $TESTTMP/repo/.hg/origbackups/b
removing conflicting file: $TESTTMP/repo/.hg/origbackups/b
getting d
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
(activating bookmark c1)
$ test -d .hg/origbackups/b
Cause two symlinks to be backed up that points to a valid location from the backup dir
$ hg up -q 0
$ mkdir ../sym-link-target
#if symlink
$ ln -s ../../../sym-link-target b
$ ln -s ../../../sym-link-target d
#else
$ touch b d
#endif
$ hg up b1
b: replacing untracked file
d: replacing untracked file
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
(activating bookmark b1)
#if symlink
$ readlink.py .hg/origbackups/b
.hg/origbackups/b -> ../../../sym-link-target
#endif
Perform an update that causes b/c and d to be backed up again - b/c should not go into the target dir
$ hg up -q 0
$ mkdir b
$ echo c4 > b/c
$ echo d3 > d
$ hg up --verbose c1
resolving manifests
b/c: replacing untracked file
d: replacing untracked file
getting b/c
creating directory: $TESTTMP/repo/.hg/origbackups/b
removing conflicting file: $TESTTMP/repo/.hg/origbackups/b
getting d
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
(activating bookmark c1)
$ cat .hg/origbackups/b/c
c4
$ cat .hg/origbackups/d
d3
$ ls ../sym-link-target
Incorrectly configure origbackuppath to be under a file
$ echo data > .hg/badorigbackups
$ hg up -q 0
$ mkdir b
$ echo c5 > b/c
$ hg up --verbose c1 --config ui.origbackuppath=.hg/badorigbackups
resolving manifests
b/c: replacing untracked file
getting b/c
creating directory: $TESTTMP/repo/.hg/badorigbackups/b
removing conflicting file: $TESTTMP/repo/.hg/badorigbackups
getting d
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
(activating bookmark c1)
$ ls .hg/badorigbackups/b
c