sapling/tests/test-diff-reverse

#!/bin/sh

hg init
cat > a <<EOF
a
b
c
EOF
hg ci -Am adda

cat > a <<EOF
d
e
f
EOF
hg ci -m moda

hg diff --reverse -r0 -r1

cat >> a <<EOF
g
h
EOF
hg diff --reverse --nodates
diff: add --inverse option Most of the time, one can reverse a diff by swapping the revisions passed with -r but it happens that if you use the global -R, and diff against the tip of the current repo, you can't swap the revisions. One use-case for that is reviewing changes from a bundle before unbundling. One could also pipe the output of `hg diff` to a command line filter that reverses the diff, but that would remove the benefit from color diffs. Therefore, having an option in `hg diff` to reverse a diff is a good thing. The option flag selection was tricky. GNU patch uses -R/--reverse but -R is already used as a global option and --reverse would make --rev ambiguous. 2009-11-05 17:18:56 +03:00			`#!/bin/sh`

			`hg init`
			`cat > a <<EOF`
			`a`
			`b`
			`c`
			`EOF`
			`hg ci -Am adda`

			`cat > a <<EOF`
			`d`
			`e`
			`f`
			`EOF`
			`hg ci -m moda`

diff: change --inverse to --reverse This fixes an incompatibility with patch(1), which also uses --reverse for reversed diffs. The --inverse flag was added in 0f0383897d54. That name was chosen over --reverse since it was thought that --reverse would make --rev ambiguous. It turns out that both flags can co-exist, with the cost that --rev can no longer be shortened to --r and --re. Since one can always use the short -r option, this is not a real problem. 2009-11-14 16:21:53 +03:00			`hg diff --reverse -r0 -r1`
diff: add --inverse option Most of the time, one can reverse a diff by swapping the revisions passed with -r but it happens that if you use the global -R, and diff against the tip of the current repo, you can't swap the revisions. One use-case for that is reviewing changes from a bundle before unbundling. One could also pipe the output of `hg diff` to a command line filter that reverses the diff, but that would remove the benefit from color diffs. Therefore, having an option in `hg diff` to reverse a diff is a good thing. The option flag selection was tricky. GNU patch uses -R/--reverse but -R is already used as a global option and --reverse would make --rev ambiguous. 2009-11-05 17:18:56 +03:00
			`cat >> a <<EOF`
			`g`
			`h`
			`EOF`
diff: change --inverse to --reverse This fixes an incompatibility with patch(1), which also uses --reverse for reversed diffs. The --inverse flag was added in 0f0383897d54. That name was chosen over --reverse since it was thought that --reverse would make --rev ambiguous. It turns out that both flags can co-exist, with the cost that --rev can no longer be shortened to --r and --re. Since one can always use the short -r option, this is not a real problem. 2009-11-14 16:21:53 +03:00			`hg diff --reverse --nodates`