view tests/test-diff-indent-heuristic.t @ 44311:2b72c4ff8ed1

nodemap: use an intermediate "docket" file to carry small metadata

This intermediate file will make mmapping, transaction and content validation
easier. (Most of this usefulness will arrive gradually in later changeset). In
particular it will become very useful to append new data are the end of raw file
instead of rewriting on the file on each transaction.

See in code comments for details.

Differential Revision: https://phab.mercurial-scm.org/D7838

#testcases bdiff xdiff

#if xdiff
#require xdiff
  $ cat >> $HGRCPATH <<EOF
  > [experimental]
  > xdiff = true
  > EOF
#endif

  $ hg init

  $ cat > a.c <<'EOF'
  > /*
  >  * This function returns 1.
  >  */
  > int f() {
  >   return 1;
  > }
  > /*
  >  * This function returns 2.
  >  */
  > int g() {
  >   return 2;
  > }
  > /*
  >  * This function returns 3.
  >  */
  > int h() {
  >   return 3;
  > }
  > EOF

  $ cat > b.c <<'EOF'
  > if (x) {
  >    do_something();
  > }
  > 
  > if (y) {
  >    do_something_else();
  > }
  > EOF

  $ cat > c.rb <<'EOF'
  > #!ruby
  > ["foo", "bar", "baz"].map do |i|
  >   i.upcase
  > end
  > EOF

  $ cat > d.py <<'EOF'
  > try:
  >     import foo
  > except ImportError:
  >     pass
  > try:
  >     import bar
  > except ImportError:
  >     pass
  > EOF

The below two files are taken from git: t/t4061-diff-indent.sh

  $ cat > spaces.txt <<'EOF'
  > 1
  > 2
  > a
  > 
  > b
  > 3
  > 4
  > EOF

  $ cat > functions.c <<'EOF'
  > 1
  > 2
  > /* function */
  > foo() {
  >     foo
  > }
  > 
  > 3
  > 4
  > EOF

  $ hg commit -m 1 -A . -q

  $ cat > a.c <<'EOF'
  > /*
  >  * This function returns 1.
  >  */
  > int f() {
  >   return 1;
  > }
  > /*
  >  * This function returns 3.
  >  */
  > int h() {
  >   return 3;
  > }
  > EOF

  $ cat > b.c <<'EOF'
  > if (x) {
  >    do_something();
  > }
  > 
  > if (y) {
  >    do_another_thing();
  > }
  > 
  > if (y) {
  >    do_something_else();
  > }
  > EOF

  $ cat > c.rb <<'EOF'
  > #!ruby
  > ["foo", "bar", "baz"].map do |i|
  >   i
  > end
  > ["foo", "bar", "baz"].map do |i|
  >   i.upcase
  > end
  > EOF

  $ cat > d.py <<'EOF'
  > try:
  >     import foo
  > except ImportError:
  >     pass
  > try:
  >     import baz
  > except ImportError:
  >     pass
  > try:
  >     import bar
  > except ImportError:
  >     pass
  > EOF

  $ cat > spaces.txt <<'EOF'
  > 1
  > 2
  > a
  > 
  > b
  > a
  > 
  > b
  > 3
  > 4
  > EOF

  $ cat > functions.c <<'EOF'
  > 1
  > 2
  > /* function */
  > bar() {
  >     foo
  > }
  > 
  > /* function */
  > foo() {
  >     foo
  > }
  > 
  > 3
  > 4
  > EOF

#if xdiff
  $ hg diff --git
  diff --git a/a.c b/a.c
  --- a/a.c
  +++ b/a.c
  @@ -4,12 +4,6 @@
   int f() {
     return 1;
   }
  -/*
  - * This function returns 2.
  - */
  -int g() {
  -  return 2;
  -}
   /*
    * This function returns 3.
    */
  diff --git a/b.c b/b.c
  --- a/b.c
  +++ b/b.c
  @@ -2,6 +2,10 @@
      do_something();
   }
   
  +if (y) {
  +   do_another_thing();
  +}
  +
   if (y) {
      do_something_else();
   }
  diff --git a/c.rb b/c.rb
  --- a/c.rb
  +++ b/c.rb
  @@ -1,4 +1,7 @@
   #!ruby
  +["foo", "bar", "baz"].map do |i|
  +  i
  +end
   ["foo", "bar", "baz"].map do |i|
     i.upcase
   end
  diff --git a/d.py b/d.py
  --- a/d.py
  +++ b/d.py
  @@ -2,6 +2,10 @@
       import foo
   except ImportError:
       pass
  +try:
  +    import baz
  +except ImportError:
  +    pass
   try:
       import bar
   except ImportError:
  diff --git a/functions.c b/functions.c
  --- a/functions.c
  +++ b/functions.c
  @@ -1,5 +1,10 @@
   1
   2
  +/* function */
  +bar() {
  +    foo
  +}
  +
   /* function */
   foo() {
       foo
  diff --git a/spaces.txt b/spaces.txt
  --- a/spaces.txt
  +++ b/spaces.txt
  @@ -2,6 +2,9 @@
   2
   a
   
  +b
  +a
  +
   b
   3
   4
#else
  $ hg diff --git
  diff --git a/a.c b/a.c
  --- a/a.c
  +++ b/a.c
  @@ -5,12 +5,6 @@
     return 1;
   }
   /*
  - * This function returns 2.
  - */
  -int g() {
  -  return 2;
  -}
  -/*
    * This function returns 3.
    */
   int h() {
  diff --git a/b.c b/b.c
  --- a/b.c
  +++ b/b.c
  @@ -3,5 +3,9 @@
   }
   
   if (y) {
  +   do_another_thing();
  +}
  +
  +if (y) {
      do_something_else();
   }
  diff --git a/c.rb b/c.rb
  --- a/c.rb
  +++ b/c.rb
  @@ -1,4 +1,7 @@
   #!ruby
   ["foo", "bar", "baz"].map do |i|
  +  i
  +end
  +["foo", "bar", "baz"].map do |i|
     i.upcase
   end
  diff --git a/d.py b/d.py
  --- a/d.py
  +++ b/d.py
  @@ -3,6 +3,10 @@
   except ImportError:
       pass
   try:
  +    import baz
  +except ImportError:
  +    pass
  +try:
       import bar
   except ImportError:
       pass
  diff --git a/functions.c b/functions.c
  --- a/functions.c
  +++ b/functions.c
  @@ -1,6 +1,11 @@
   1
   2
   /* function */
  +bar() {
  +    foo
  +}
  +
  +/* function */
   foo() {
       foo
   }
  diff --git a/spaces.txt b/spaces.txt
  --- a/spaces.txt
  +++ b/spaces.txt
  @@ -3,5 +3,8 @@
   a
   
   b
  +a
  +
  +b
   3
   4
#endif