checknlink: return False if .hgtmp file preexists (issue2517)
If os_link fails on Windows, errno is always errno.EINVAL,
so we can't really say if the testlink could not be created
because (a) the FS doesn't support hardlinks or (b) there
is a leaked .hgtmp file lying around from a previous crashed
run.
So let's err on the safe side, keep the code simple and assume
we can't detect hardlinks in both cases.
$ cat >> $HGRCPATH <<EOF
> [extensions]
> graphlog=
>
> [alias]
> myinit = init
> cleanstatus = status -c
> unknown = bargle
> ambiguous = s
> recursive = recursive
> nodefinition =
> no--cwd = status --cwd elsewhere
> no-R = status -R elsewhere
> no--repo = status --repo elsewhere
> no--repository = status --repository elsewhere
> mylog = log
> lognull = log -r null
> shortlog = log --template '{rev} {node|short} | {date|isodate}\n'
> dln = lognull --debug
> nousage = rollback
> put = export -r 0 -o "\$FOO/%R.diff"
> blank = !echo
> self = !echo '\$0'
> echo = !echo '\$@'
> echo1 = !echo '\$1'
> echo2 = !echo '\$2'
> echo13 = !echo '\$1' '\$3'
> count = !hg log -r '\$@' --template='.' | wc -c | sed -e 's/ //g'
> mcount = !hg log \$@ --template='.' | wc -c | sed -e 's/ //g'
> rt = root
> tglog = glog --template "{rev}:{node|short}: '{desc}' {branches}\n"
> idalias = id
> idaliaslong = id
> idaliasshell = !echo test
> parentsshell1 = !echo one
> parentsshell2 = !echo two
>
> [defaults]
> mylog = -q
> lognull = -q
> log = -v
> EOF
basic
$ hg myinit alias
unknown
$ hg unknown
alias 'unknown' resolves to unknown command 'bargle'
$ hg help unknown
alias 'unknown' resolves to unknown command 'bargle'
ambiguous
$ hg ambiguous
alias 'ambiguous' resolves to ambiguous command 's'
$ hg help ambiguous
alias 'ambiguous' resolves to ambiguous command 's'
recursive
$ hg recursive
alias 'recursive' resolves to unknown command 'recursive'
$ hg help recursive
alias 'recursive' resolves to unknown command 'recursive'
no definition
$ hg nodef
no definition for alias 'nodefinition'
$ hg help nodef
no definition for alias 'nodefinition'
invalid options
$ hg no--cwd
error in definition for alias 'no--cwd': --cwd may only be given on the command line
$ hg help no--cwd
error in definition for alias 'no--cwd': --cwd may only be given on the command line
$ hg no-R
error in definition for alias 'no-R': -R may only be given on the command line
$ hg help no-R
error in definition for alias 'no-R': -R may only be given on the command line
$ hg no--repo
error in definition for alias 'no--repo': --repo may only be given on the command line
$ hg help no--repo
error in definition for alias 'no--repo': --repo may only be given on the command line
$ hg no--repository
error in definition for alias 'no--repository': --repository may only be given on the command line
$ hg help no--repository
error in definition for alias 'no--repository': --repository may only be given on the command line
$ cd alias
no usage
$ hg nousage
no rollback information available
$ echo foo > foo
$ hg ci -Amfoo
adding foo
with opts
$ hg cleanst
C foo
with opts and whitespace
$ hg shortlog
0 e63c23eaa88a | 1970-01-01 00:00 +0000
interaction with defaults
$ hg mylog
0:e63c23eaa88a
$ hg lognull
-1:000000000000
properly recursive
$ hg dln
changeset: -1:0000000000000000000000000000000000000000
parent: -1:0000000000000000000000000000000000000000
parent: -1:0000000000000000000000000000000000000000
manifest: -1:0000000000000000000000000000000000000000
user:
date: Thu Jan 01 00:00:00 1970 +0000
extra: branch=default
path expanding
$ FOO=`pwd` hg put
$ cat 0.diff
# HG changeset patch
# User test
# Date 0 0
# Node ID e63c23eaa88ae77967edcf4ea194d31167c478b0
# Parent 0000000000000000000000000000000000000000
foo
diff -r 000000000000 -r e63c23eaa88a foo
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/foo Thu Jan 01 00:00:00 1970 +0000
@@ -0,0 +1,1 @@
+foo
simple shell aliases
$ hg blank
$ hg blank foo
$ hg self
self
$ hg echo
$ hg echo foo
foo
$ hg echo 'test $2' foo
test $2 foo
$ hg echo1 foo bar baz
foo
$ hg echo2 foo bar baz
bar
$ hg echo13 foo bar baz test
foo baz
$ hg echo2 foo
$ echo bar > bar
$ hg ci -qA -m bar
$ hg count .
1
$ hg count 'branch(default)'
2
$ hg mcount -r '"branch(default)"'
2
$ hg tglog
@ 1:7e7f92de180e: 'bar'
|
o 0:e63c23eaa88a: 'foo'
shadowing
$ hg i
hg: command 'i' is ambiguous:
idalias idaliaslong idaliasshell identify import incoming init
[255]
$ hg id
7e7f92de180e tip
$ hg ida
hg: command 'ida' is ambiguous:
idalias idaliaslong idaliasshell
[255]
$ hg idalias
7e7f92de180e tip
$ hg idaliasl
7e7f92de180e tip
$ hg idaliass
test
$ hg parentsshell
hg: command 'parentsshell' is ambiguous:
parentsshell1 parentsshell2
[255]
$ hg parentsshell1
one
$ hg parentsshell2
two
shell aliases with global options
$ hg init sub
$ cd sub
$ hg count 'branch(default)'
0
$ hg -v count 'branch(default)'
0
$ hg -R .. count 'branch(default)'
0
$ hg --cwd .. count 'branch(default)'
2
$ hg echo --cwd ..
--cwd ..
repo specific shell aliases
$ cat >> .hg/hgrc <<EOF
> [alias]
> subalias = !echo sub \$@
> EOF
$ cat >> ../.hg/hgrc <<EOF
> [alias]
> mainalias = !echo main \$@
> EOF
shell alias defined in current repo
$ hg subalias
sub
$ hg --cwd .. subalias > /dev/null
hg: unknown command 'subalias'
[255]
$ hg -R .. subalias > /dev/null
hg: unknown command 'subalias'
[255]
shell alias defined in other repo
$ hg mainalias > /dev/null
hg: unknown command 'mainalias'
[255]
$ hg -R .. mainalias
main
$ hg --cwd .. mainalias
main
invalid arguments
$ hg rt foo
hg rt: invalid arguments
hg rt
alias for: hg root
print the root (top) of the current working directory
Print the root directory of the current repository.
Returns 0 on success.
use "hg -v help rt" to show global options
[255]
invalid global arguments for normal commands, aliases, and shell aliases
$ hg --invalid root
hg: option --invalid not recognized
Mercurial Distributed SCM
basic commands:
add add the specified files on the next commit
annotate show changeset information by line for each file
clone make a copy of an existing repository
commit commit the specified files or all outstanding changes
diff diff repository (or selected files)
export dump the header and diffs for one or more changesets
forget forget the specified files on the next commit
init create a new repository in the given directory
log show revision history of entire repository or files
merge merge working directory with another revision
pull pull changes from the specified source
push push changes to the specified destination
remove remove the specified files on the next commit
serve start stand-alone webserver
status show changed files in the working directory
summary summarize working directory state
update update working directory (or switch revisions)
use "hg help" for the full list of commands or "hg -v" for details
[255]
$ hg --invalid mylog
hg: option --invalid not recognized
Mercurial Distributed SCM
basic commands:
add add the specified files on the next commit
annotate show changeset information by line for each file
clone make a copy of an existing repository
commit commit the specified files or all outstanding changes
diff diff repository (or selected files)
export dump the header and diffs for one or more changesets
forget forget the specified files on the next commit
init create a new repository in the given directory
log show revision history of entire repository or files
merge merge working directory with another revision
pull pull changes from the specified source
push push changes to the specified destination
remove remove the specified files on the next commit
serve start stand-alone webserver
status show changed files in the working directory
summary summarize working directory state
update update working directory (or switch revisions)
use "hg help" for the full list of commands or "hg -v" for details
[255]
$ hg --invalid blank
hg: option --invalid not recognized
Mercurial Distributed SCM
basic commands:
add add the specified files on the next commit
annotate show changeset information by line for each file
clone make a copy of an existing repository
commit commit the specified files or all outstanding changes
diff diff repository (or selected files)
export dump the header and diffs for one or more changesets
forget forget the specified files on the next commit
init create a new repository in the given directory
log show revision history of entire repository or files
merge merge working directory with another revision
pull pull changes from the specified source
push push changes to the specified destination
remove remove the specified files on the next commit
serve start stand-alone webserver
status show changed files in the working directory
summary summarize working directory state
update update working directory (or switch revisions)
use "hg help" for the full list of commands or "hg -v" for details
[255]