comparison tests/test-diffstat.t @ 32320:0e29ce16ec38

diffstat: properly count lines starting in '--' or '++' (issue5479)

Lines that start in '--' or '++' were previously not counted
as deletions or additions in diffstat, resulting in incorrect
addition/deletion counts.  The bug was present if the start
of the line, combined with the diff character resulted
in '---' or '+++'.

diffstatdata will now track, for each file, if it has moved
pas the header section by looking for a line beginning with
'@@'.  Once that has happened, lines beginning with '-'
or '+' will be counted for deletions and additions.  Once a
line beginning with 'diff' is found, the process starts over.

32319:d3177aecac01

  warning: ../dir2 not inside relative root . (glob)

  $ hg diff --stat --root . -I old

  $ cd ..

32320:0e29ce16ec38

  warning: ../dir2 not inside relative root . (glob)

  $ hg diff --stat --root . -I old

  $ cd ..

Files with lines beginning with '--' or '++' should be properly counted in diffstat

  $ hg up -Cr tip
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ rm dir1/new
  $ rm dir2/new
  $ rm "file with spaces"
  $ cat > file << EOF
  > line 1
  > line 2
  > line 3
  > EOF
  $ hg commit -Am file
  adding file

Lines added starting with '--' should count as additions
  $ cat > file << EOF
  > line 1
  > -- line 2, with dashes
  > line 3
  > EOF

  $ hg diff --root .
  diff -r be1569354b24 file
  --- a/file	Thu Jan 01 00:00:00 1970 +0000
  +++ b/file	* (glob)
  @@ -1,3 +1,3 @@
   line 1
  -line 2
  +-- line 2, with dashes
   line 3

  $ hg diff --root . --stat
   file |  2 +-
   1 files changed, 1 insertions(+), 1 deletions(-)

Lines changed starting with '--' should count as deletions
  $ hg commit -m filev2
  $ cat > file << EOF
  > line 1
  > -- line 2, with dashes, changed again
  > line 3
  > EOF

  $ hg diff --root .
  diff -r 160f7c034df6 file
  --- a/file	Thu Jan 01 00:00:00 1970 +0000
  +++ b/file	* (glob)
  @@ -1,3 +1,3 @@
   line 1
  --- line 2, with dashes
  +-- line 2, with dashes, changed again
   line 3

  $ hg diff --root . --stat
   file |  2 +-
   1 files changed, 1 insertions(+), 1 deletions(-)

Lines changed starting with '--' should count as deletions
and starting with '++' should count as additions
  $ cat > file << EOF
  > line 1
  > ++ line 2, switched dashes to plusses
  > line 3
  > EOF

  $ hg diff --root .
  diff -r 160f7c034df6 file
  --- a/file	Thu Jan 01 00:00:00 1970 +0000
  +++ b/file	* (glob)
  @@ -1,3 +1,3 @@
   line 1
  --- line 2, with dashes
  +++ line 2, switched dashes to plusses
   line 3

  $ hg diff --root . --stat
   file |  2 +-
   1 files changed, 1 insertions(+), 1 deletions(-)