hgweb: code selection without line numbers in file source view
All the source lines are put in a <pre> tag, which gives correct display and
copy&paste in both Chromium (WebKit) and FireFox: line numbers are not copied,
all the tabs and spaces are kept. This doesn't change the visual appearance
of the view compared to current hgweb version and doesn't use any JS code.
Also, stripes in this view are now generated clientside with CSS.
This implementation is chosen because other variants have important issues:
Strategy FF Chrome
current D,LT,E,T,L D,L
pre S,NW S,NW
pre/div/nbsp LT,E,T,TS,NW TS,NW
pre/div/br LT,E,T,NW NW
ol/li/nbsp LT,E,T,TS,AJ TS,AJ
ol/li/br LT,E,T,AJ AJ
pre/span LV LV
Legend
Strategies:
- current: implemented in hgweb before this patch, i.e. divs for each line,
and line numbers links in the div too
- pre: the whole code in one pre tag with newlines, all line numbers
in another one with 'float: left'
- pre/div/{nbsp,br}: same as just 'pre', but separate divs for each line and
or <br> instead of empty lines (otherwise they are not copied at all)
- ol/li/{nbsp,br}: a single ol with li's and divs for each line,
or <br> same as in previous strategy
- pre/span: this patch
Problems:
D = (very minor) display problems, like wrong width of leading tabs
LT = loses leading/trailing whitespace
E = loses embedded whitespace
B = loses blank lines
T = loses tabs
L = selects line numbers
LV = (only) visually selects line numbers
LVE = (only) visually selects line numbers at empty lines
S = no stripes (and no ability to easily highlight
lines-which-are-linked-at in the future)
TS = space copied instead of empty line
AJ = get anchor links only with JS (they work even without)
NW = no linewrap easily possible (in future)
As for browser versions compatibility, the CSS tricks used are supported in
(according to caniuse.com):
a) line numbers generation with 'content:' property and CSS counters:
IE 8+, all other popular browsers (in pre-WebKit Opera numbers are being copied)
b) stripes ('nth-child' selector):
IE 8+, FF 3.5+, Safari 3.2+, Opera 9.5+, all other popular browsers
c) line numbers are not visually selected ('user-select:' property):
IE 10+, Opera 15.0+, all other popular browsers
This patch is based on a demo implementation by
Martin Geisler <martin@geisler.net>.
$ remove() {
> hg rm $@
> echo "exit code: $?"
> hg st
> # do not use ls -R, which recurses in .hg subdirs on Mac OS X 10.5
> find . -name .hg -prune -o -type f -print | sort
> hg up -C
> }
$ hg init a
$ cd a
$ echo a > foo
file not managed
$ remove foo
not removing foo: file is untracked
exit code: 1
? foo
./foo
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg add foo
$ hg commit -m1
the table cases
00 state added, options none
$ echo b > bar
$ hg add bar
$ remove bar
not removing bar: file has been marked for add (use forget to undo)
exit code: 1
A bar
./bar
./foo
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
01 state clean, options none
$ remove foo
exit code: 0
R foo
? bar
./bar
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
02 state modified, options none
$ echo b >> foo
$ remove foo
not removing foo: file is modified (use -f to force removal)
exit code: 1
M foo
? bar
./bar
./foo
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
03 state missing, options none
$ rm foo
$ remove foo
exit code: 0
R foo
? bar
./bar
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
10 state added, options -f
$ echo b > bar
$ hg add bar
$ remove -f bar
exit code: 0
? bar
./bar
./foo
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ rm bar
11 state clean, options -f
$ remove -f foo
exit code: 0
R foo
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
12 state modified, options -f
$ echo b >> foo
$ remove -f foo
exit code: 0
R foo
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
13 state missing, options -f
$ rm foo
$ remove -f foo
exit code: 0
R foo
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
20 state added, options -A
$ echo b > bar
$ hg add bar
$ remove -A bar
not removing bar: file still exists
exit code: 1
A bar
./bar
./foo
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
21 state clean, options -A
$ remove -A foo
not removing foo: file still exists
exit code: 1
? bar
./bar
./foo
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
22 state modified, options -A
$ echo b >> foo
$ remove -A foo
not removing foo: file still exists
exit code: 1
M foo
? bar
./bar
./foo
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
23 state missing, options -A
$ rm foo
$ remove -A foo
exit code: 0
R foo
? bar
./bar
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
30 state added, options -Af
$ echo b > bar
$ hg add bar
$ remove -Af bar
exit code: 0
? bar
./bar
./foo
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ rm bar
31 state clean, options -Af
$ remove -Af foo
exit code: 0
R foo
./foo
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
32 state modified, options -Af
$ echo b >> foo
$ remove -Af foo
exit code: 0
R foo
./foo
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
33 state missing, options -Af
$ rm foo
$ remove -Af foo
exit code: 0
R foo
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
test some directory stuff
$ mkdir test
$ echo a > test/foo
$ echo b > test/bar
$ hg ci -Am2
adding test/bar
adding test/foo
dir, options none
$ rm test/bar
$ remove test
removing test/bar (glob)
removing test/foo (glob)
exit code: 0
R test/bar
R test/foo
./foo
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
dir, options -f
$ rm test/bar
$ remove -f test
removing test/bar (glob)
removing test/foo (glob)
exit code: 0
R test/bar
R test/foo
./foo
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
dir, options -A
$ rm test/bar
$ remove -A test
not removing test/foo: file still exists (glob)
removing test/bar (glob)
exit code: 1
R test/bar
./foo
./test/foo
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
dir, options -Af
$ rm test/bar
$ remove -Af test
removing test/bar (glob)
removing test/foo (glob)
exit code: 0
R test/bar
R test/foo
./foo
./test/foo
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
test remove dropping empty trees (issue1861)
$ mkdir -p issue1861/b/c
$ echo x > issue1861/x
$ echo y > issue1861/b/c/y
$ hg ci -Am add
adding issue1861/b/c/y
adding issue1861/x
$ hg rm issue1861/b
removing issue1861/b/c/y (glob)
$ hg ci -m remove
$ ls issue1861
x
test that commit does not crash if the user removes a newly added file
$ touch f1
$ hg add f1
$ rm f1
$ hg ci -A -mx
removing f1
nothing changed
[1]
handling of untracked directories and missing files
$ mkdir d1
$ echo a > d1/a
$ hg rm --after d1
not removing d1: no tracked files
[1]
$ hg add d1/a
$ rm d1/a
$ hg rm --after d1
removing d1/a (glob)
#if windows
$ hg rm --after nosuch
nosuch: * (glob)
[1]
#else
$ hg rm --after nosuch
nosuch: No such file or directory
[1]
#endif