Make tests work on Solaris:
- replacement for mktemp
- fall back if shell arithmetic doesn't work
- replacement for 'set -x' (which results look different with some shells)
- "FOO=bar; export FOO" instead of "export FOO=bar"
- don't use 'if ! ...'
+ cat
+ chmod +x merge
+ mkdir t
+ cd t
+ hg init
+ echo This is file a1
+ hg add a
+ hg commit -m 'commit #0' -d '0 0'
+ echo This is file b1
+ hg add b
+ hg commit -m 'commit #1' -d '0 0'
+ hg update 0
+ echo This is file c1
+ hg add c
+ hg commit -m 'commit #2' -d '0 0'
+ echo This is file b1
+ env HGMERGE=../merge hg update -m 1
+ cd ..
+ /bin/rm -rf t
+ mkdir t
+ cd t
+ hg init
+ echo This is file a1
+ hg add a
+ hg commit -m 'commit #0' -d '0 0'
+ echo This is file b1
+ hg add b
+ hg commit -m 'commit #1' -d '0 0'
+ hg update 0
+ echo This is file c1
+ hg add c
+ hg commit -m 'commit #2' -d '0 0'
+ echo This is file b2
+ env HGMERGE=../merge hg update -m 1
merging for b
merging b
+ cd ..
+ /bin/rm -rf t
+ mkdir t
+ cd t
+ hg init
+ echo This is file a1
+ hg add a
+ hg commit -m 'commit #0' -d '0 0'
+ echo This is file b1
+ hg add b
+ hg commit -m 'commit #1' -d '0 0'
+ echo This is file b22
+ hg commit -m 'commit #2' -d '0 0'
+ hg update 1
+ echo This is file c1
+ hg add c
+ hg commit -m 'commit #3' -d '0 0'
+ cat b
This is file b1
+ echo This is file b22
+ env HGMERGE=../merge hg update -m 2
merging for b
merging b
+ cd ..
+ /bin/rm -rf t
+ mkdir t
+ cd t
+ hg init
+ echo This is file a1
+ hg add a
+ hg commit -m 'commit #0' -d '0 0'
+ echo This is file b1
+ hg add b
+ hg commit -m 'commit #1' -d '0 0'
+ echo This is file b22
+ hg commit -m 'commit #2' -d '0 0'
+ hg update 1
+ echo This is file c1
+ hg add c
+ hg commit -m 'commit #3' -d '0 0'
+ echo This is file b33
+ env HGMERGE=../merge hg update -m 2
merging for b
merging b
+ cd ..
+ /bin/rm -rf t