mirror of
https://github.com/facebook/sapling.git
synced 2024-10-10 00:45:18 +03:00
ed1d8b7e7a
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.
107 lines
1.2 KiB
Plaintext
107 lines
1.2 KiB
Plaintext
% init
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% commit
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adding base
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% qnew mqbase
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% qrefresh
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% qdiff
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diff -r 67e992f2c4f3 base
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--- a/base
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+++ b/base
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@@ -1,1 +1,1 @@
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-base
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+patched
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% qdiff dirname
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diff -r 67e992f2c4f3 base
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--- a/base
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+++ b/base
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@@ -1,1 +1,1 @@
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-base
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+patched
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% qdiff filename
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diff -r 67e992f2c4f3 base
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--- a/base
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+++ b/base
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@@ -1,1 +1,1 @@
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-base
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+patched
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% revert
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% qpop
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popping mqbase
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patch queue now empty
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% qdelete mqbase
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% commit 2
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adding lines
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% qnew 2
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% qdiff -U 1
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diff -r 35fb829491c1 lines
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--- a/lines
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+++ b/lines
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@@ -1,1 +1,3 @@
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+
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+
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1
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@@ -4,4 +6,4 @@
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4
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-hello world
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-goodbye world
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+hello world
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+ goodbye world
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7
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% qdiff -b
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diff -r 35fb829491c1 lines
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--- a/lines
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+++ b/lines
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@@ -1,9 +1,11 @@
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+
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+
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1
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2
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3
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4
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-hello world
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-goodbye world
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+hello world
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+ goodbye world
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7
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8
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9
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% qdiff -U 1 -B
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diff -r 35fb829491c1 lines
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--- a/lines
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+++ b/lines
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@@ -4,4 +6,4 @@
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4
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-hello world
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-goodbye world
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+hello world
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+ goodbye world
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7
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% qdiff -w
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diff -r 35fb829491c1 lines
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--- a/lines
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+++ b/lines
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@@ -1,3 +1,5 @@
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+
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+
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1
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2
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3
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% qdiff --inverse
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diff -r 35fb829491c1 lines
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--- a/lines
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+++ b/lines
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@@ -1,11 +1,9 @@
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-
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-
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1
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2
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3
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4
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-hello world
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- goodbye world
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+hello world
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+goodbye world
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7
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8
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9
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