revlog: support reading generaldelta revlogs
Generaldelta is a new revlog global flag. When it's turned on, the base field
of each revision entry holds the deltaparent instead of the base revision of
the current delta chain.
This allows for great potential flexibility when generating deltas, as any
revision can serve as deltaparent. Previously, the deltaparent for revision r
was hardcoded to be r - 1.
The base revision of the delta chain can still be accessed as before, since it
is now computed in an iterative fashion, following the deltaparents backwards.
$ hg init t
$ cd t
$ echo import > port
$ hg add port
$ hg commit -m 0 -u spam -d '0 0'
$ echo export >> port
$ hg commit -m 1 -u eggs -d '1 0'
$ echo export > port
$ echo vaportight >> port
$ echo 'import/export' >> port
$ hg commit -m 2 -u spam -d '2 0'
$ echo 'import/export' >> port
$ hg commit -m 3 -u eggs -d '3 0'
$ head -n 3 port > port1
$ mv port1 port
$ hg commit -m 4 -u spam -d '4 0'
pattern error
$ hg grep '**test**'
grep: invalid match pattern: nothing to repeat
[1]
simple
$ hg grep port port
port:4:export
port:4:vaportight
port:4:import/export
simple with color
$ hg --config extensions.color= grep --config color.mode=ansi \
> --color=always port port
port:4:ex\x1b[0;31;1mport\x1b[0m (esc)
port:4:va\x1b[0;31;1mport\x1b[0might (esc)
port:4:im\x1b[0;31;1mport\x1b[0m/export (esc)
all
$ hg grep --traceback --all -nu port port
port:4:4:-:spam:import/export
port:3:4:+:eggs:import/export
port:2:1:-:spam:import
port:2:2:-:spam:export
port:2:1:+:spam:export
port:2:2:+:spam:vaportight
port:2:3:+:spam:import/export
port:1:2:+:eggs:export
port:0:1:+:spam:import
other
$ hg grep import port
port:4:import/export
$ hg cp port port2
$ hg commit -m 4 -u spam -d '5 0'
follow
$ hg grep --traceback -f 'import$' port2
port:0:import
$ echo deport >> port2
$ hg commit -m 5 -u eggs -d '6 0'
$ hg grep -f --all -nu port port2
port2:6:4:+:eggs:deport
port:4:4:-:spam:import/export
port:3:4:+:eggs:import/export
port:2:1:-:spam:import
port:2:2:-:spam:export
port:2:1:+:spam:export
port:2:2:+:spam:vaportight
port:2:3:+:spam:import/export
port:1:2:+:eggs:export
port:0:1:+:spam:import
$ cd ..
$ hg init t2
$ cd t2
$ hg grep foobar foo
[1]
$ hg grep foobar
[1]
$ echo blue >> color
$ echo black >> color
$ hg add color
$ hg ci -m 0
$ echo orange >> color
$ hg ci -m 1
$ echo black > color
$ hg ci -m 2
$ echo orange >> color
$ echo blue >> color
$ hg ci -m 3
$ hg grep orange
color:3:orange
$ hg grep --all orange
color:3:+:orange
color:2:-:orange
color:1:+:orange
match in last "line" without newline
$ python -c 'fp = open("noeol", "wb"); fp.write("no infinite loop"); fp.close();'
$ hg ci -Amnoeol
adding noeol
last character omitted in output to avoid infinite loop
$ hg grep loop
noeol:4:no infinite loo
$ cd ..
Issue685: trackback in grep -r after rename
Got a traceback when using grep on a single
revision with renamed files.
$ hg init issue685
$ cd issue685
$ echo octarine > color
$ hg ci -Amcolor
adding color
$ hg rename color colour
$ hg ci -Am rename
$ hg grep octarine
colour:1:octarine
color:0:octarine
Used to crash here
$ hg grep -r 1 octarine
colour:1:octarine
$ cd ..
Issue337: test that grep follows parent-child relationships instead
of just using revision numbers.
$ hg init issue337
$ cd issue337
$ echo white > color
$ hg commit -A -m "0 white"
adding color
$ echo red > color
$ hg commit -A -m "1 red"
$ hg update 0
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo black > color
$ hg commit -A -m "2 black"
created new head
$ hg update --clean 1
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo blue > color
$ hg commit -A -m "3 blue"
$ hg grep --all red
color:3:-:red
color:1:+:red
$ hg init a
$ cd a
$ cp $TESTDIR/binfile.bin .
$ hg add binfile.bin
$ hg ci -m 'add binfile.bin'
$ hg grep "MaCam" --all
binfile.bin:0:+: Binary file matches