upstream/mercurial-mirror Files · tests/test-revset-outgoing.t

posix: always seek to EOF when opening a file in append mode...

posix: always seek to EOF when opening a file in append mode Python 3 already does this, so skip it there. Consider the program: #include <stdio.h> int main() { FILE *f = fopen("narf", "w"); fprintf(f, "narf\n"); fclose(f); f = fopen("narf", "a"); printf("%ld\n", ftell(f)); fprintf(f, "troz\n"); printf("%ld\n", ftell(f)); return 0; } on macOS, FreeBSD, and Linux with glibc, this program prints 5 10 but on musl libc (Alpine Linux and probably others) this prints 0 10 By my reading of https://pubs.opengroup.org/onlinepubs/009695399/functions/fopen.html this is technically correct, specifically: > Opening a file with append mode (a as the first character in the > mode argument) shall cause all subsequent writes to the file to be > forced to the then current end-of-file, regardless of intervening > calls to fseek(). in other words, the file position doesn't really matter in append-mode files, and we can't depend on it being at all meaningful unless we perform a seek() before tell() after open(..., 'a'). Experimentally after a .write() we can do a .tell() and it'll always be reasonable, but I'm unclear from reading the specification if that's a smart thing to rely on. This matches what we do on Windows and what Python 3 does for free, so let's just be consistent. Thanks to Yuya for the idea.

Rishabh Madan - - Load All Authors

File last commit:

r31064:4431add9 stable


                r43163:97ada9b8

5.0.2 stable

Download file

             test-revset-outgoing.t
        
                    115 lines
            
             | 2.4 KiB
            
                | text/troff
            
             |
                Tads3Lexer
            
             / tests / test-revset-outgoing.t
          
                    History
                
                 |
                  Annotation
                 | Raw
                 |Copy content
                 |Copy permalink

        $ cat >> $HGRCPATH <<EOF

        > [alias]

        > tlog = log --template "{rev}:{node|short}: '{desc}' {branches}\n"

        > tglog = tlog -G

        > tout = out --template "{rev}:{node|short}: '{desc}' {branches}\n"

        > EOF

        $ hg init a

        $ cd a

        $ echo a > a

        $ hg ci -Aqm0

        $ echo foo >> a

        $ hg ci -Aqm1

        $ hg up -q 0

        $ hg branch stable

        marked working directory as branch stable

        (branches are permanent and global, did you want a bookmark?)

        $ echo bar >> a

        $ hg ci -qm2

        $ hg tglog

        @  2:7bee6c3bea3a: '2' stable

        |

        | o  1:3560197d8331: '1'

        |/

        o  0:f7b1eb17ad24: '0'

        $ cd ..

        $ hg clone -q a#stable b

        $ cd b

        $ cat .hg/hgrc

        # example repository config (see 'hg help config' for more info)

        [paths]

        default = $TESTTMP/a#stable

        # path aliases to other clones of this repo in URLs or filesystem paths

        # (see 'hg help config.paths' for more info)

        #

        # default:pushurl = ssh://jdoe@example.net/hg/jdoes-fork

        # my-fork         = ssh://jdoe@example.net/hg/jdoes-fork

        # my-clone        = /home/jdoe/jdoes-clone

        [ui]

        # name and email (local to this repository, optional), e.g.

        # username = Jane Doe <jdoe@example.com>

        $ echo red >> a

        $ hg ci -qm3

        $ hg up -q default

        $ echo blue >> a

        $ hg ci -qm4

        $ hg tglog

        @  3:f0461977a3db: '4'

        |

        | o  2:1d4099801a4e: '3' stable

        | |

        | o  1:7bee6c3bea3a: '2' stable

        |/

        o  0:f7b1eb17ad24: '0'

        $ hg tout

        comparing with $TESTTMP/a

        searching for changes

        2:1d4099801a4e: '3' stable

        $ hg tlog -r 'outgoing()'

        2:1d4099801a4e: '3' stable

        $ hg tout ../a#default

        comparing with ../a

        searching for changes

        3:f0461977a3db: '4' 

        $ hg tlog -r 'outgoing("../a#default")'

        3:f0461977a3db: '4' 

        $ echo "green = ../a#default" >> .hg/hgrc

        $ cat .hg/hgrc

        # example repository config (see 'hg help config' for more info)

        [paths]

        default = $TESTTMP/a#stable

        # path aliases to other clones of this repo in URLs or filesystem paths

        # (see 'hg help config.paths' for more info)

        #

        # default:pushurl = ssh://jdoe@example.net/hg/jdoes-fork

        # my-fork         = ssh://jdoe@example.net/hg/jdoes-fork

        # my-clone        = /home/jdoe/jdoes-clone

        [ui]

        # name and email (local to this repository, optional), e.g.

        # username = Jane Doe <jdoe@example.com>

        green = ../a#default

        $ hg tout green

        abort: repository green does not exist!

        [255]

        $ hg tlog -r 'outgoing("green")'

        abort: repository green does not exist!

        [255]

        $ cd ..

	Site-wide shortcuts
/	Use quick search box
g h	Goto home page
g g	Goto my private gists page
g G	Goto my public gists page
g 0-9	Goto bookmarked items from 0-9
n r	New repository page
n g	New gist page

	Repositories
g s	Goto summary page
g c	Goto changelog page
g f	Goto files page
g F	Goto files page with file search activated
g p	Goto pull requests page
g o	Goto repository settings
g O	Goto repository access permissions settings
t s	Toggle sidebar on some pages

				$ cat >> $HGRCPATH <<EOF
				> [alias]
				> tlog = log --template "{rev}:{node\|short}: '{desc}' {branches}\n"
				> tglog = tlog -G
				> tout = out --template "{rev}:{node\|short}: '{desc}' {branches}\n"
				> EOF

				$ hg init a
				$ cd a

				$ echo a > a
				$ hg ci -Aqm0

				$ echo foo >> a
				$ hg ci -Aqm1

				$ hg up -q 0

				$ hg branch stable
				marked working directory as branch stable
				(branches are permanent and global, did you want a bookmark?)
				$ echo bar >> a
				$ hg ci -qm2

				$ hg tglog
				@ 2:7bee6c3bea3a: '2' stable
				\|
				\| o 1:3560197d8331: '1'
				\|/
				o 0:f7b1eb17ad24: '0'


				$ cd ..

				$ hg clone -q a#stable b

				$ cd b
				$ cat .hg/hgrc
				# example repository config (see 'hg help config' for more info)
				[paths]
				default = $TESTTMP/a#stable

				# path aliases to other clones of this repo in URLs or filesystem paths
				# (see 'hg help config.paths' for more info)
				#
				# default:pushurl = ssh://jdoe@example.net/hg/jdoes-fork
				# my-fork = ssh://jdoe@example.net/hg/jdoes-fork
				# my-clone = /home/jdoe/jdoes-clone

				[ui]
				# name and email (local to this repository, optional), e.g.
				# username = Jane Doe <jdoe@example.com>

				$ echo red >> a
				$ hg ci -qm3

				$ hg up -q default

				$ echo blue >> a
				$ hg ci -qm4

				$ hg tglog
				@ 3:f0461977a3db: '4'
				\|
				\| o 2:1d4099801a4e: '3' stable
				\| \|
				\| o 1:7bee6c3bea3a: '2' stable
				\|/
				o 0:f7b1eb17ad24: '0'


				$ hg tout
				comparing with $TESTTMP/a
				searching for changes
				2:1d4099801a4e: '3' stable

				$ hg tlog -r 'outgoing()'
				2:1d4099801a4e: '3' stable

				$ hg tout ../a#default
				comparing with ../a
				searching for changes
				3:f0461977a3db: '4'

				$ hg tlog -r 'outgoing("../a#default")'
				3:f0461977a3db: '4'

				$ echo "green = ../a#default" >> .hg/hgrc

				$ cat .hg/hgrc
				# example repository config (see 'hg help config' for more info)
				[paths]
				default = $TESTTMP/a#stable

				# path aliases to other clones of this repo in URLs or filesystem paths
				# (see 'hg help config.paths' for more info)
				#
				# default:pushurl = ssh://jdoe@example.net/hg/jdoes-fork
				# my-fork = ssh://jdoe@example.net/hg/jdoes-fork
				# my-clone = /home/jdoe/jdoes-clone

				[ui]
				# name and email (local to this repository, optional), e.g.
				# username = Jane Doe <jdoe@example.com>
				green = ../a#default

				$ hg tout green
				abort: repository green does not exist!
				[255]

				$ hg tlog -r 'outgoing("green")'
				abort: repository green does not exist!
				[255]

				$ cd ..