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2008-02-17sending errors to stdout under $PAGERLibravatar Junio C Hamano1-0/+1
If you do this (and you are not an Emacs user who uses PAGER=cat in your *shell* buffer): $ git init Initialized empty Git repository in .git/ $ echo hello world >foo $ H=$(git hash-object -w foo) $ git tag -a foo-tag -m "Tags $H" $H $ echo $H 3b18e512dba79e4c8300dd08aeb37f8e728b8dad $ rm -f .git/objects/3b/18e5* $ git show foo-tag tag foo-tag Tagger: Junio C Hamano <gitster@pobox.com> Date: Sat Feb 16 10:43:23 2008 -0800 Tags 3b18e512dba79e4c8300dd08aeb37f8e728b8dad you do not get any indication of error. If you are careful, you would notice that no contents from the tagged object is displayed, but that is about it. If you run the "show" command without pager, however, you will see the error: $ git --no-pager show foo-tag tag foo-tag Tagger: Junio C Hamano <gitster@pobox.com> Date: Sat Feb 16 10:43:23 2008 -0800 Tags 3b18e512dba79e4c8300dd08aeb37f8e728b8dad error: Could not read object 3b18e512dba79e4c8300dd08aeb37f8e728b8dad Because we spawn the pager as the foreground process and feed its input via pipe from the real command, we cannot affect the exit status the shell sees from git command when the pager is in use (I think there is not much gain we can have by working it around, though). But at least it may make sense to show the error message to the user sitting in front of the pager. [jc: Edgar Toernig suggested a much nicer implementation than what I originally posted, which I took.] Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-11Support GIT_PAGER_IN_USE environment variableLibravatar Jeff King1-1/+14
When deciding whether or not to turn on automatic color support, git_config_colorbool checks whether stdout is a tty. However, because we run a pager, if stdout is not a tty, we must check whether it is because we started the pager. This used to be done by checking the pager_in_use variable. This variable was set only when the git program being run started the pager; there was no way for an external program running git indicate that it had already started a pager. This patch allows a program to set GIT_PAGER_IN_USE to a true value to indicate that even though stdout is not a tty, it is because a pager is being used. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-14Move #include <sys/select.h> and <sys/ioctl.h> to git-compat-util.h.Libravatar Johannes Sixt1-2/+0
... since all system headers are pulled in via git-compat-util.h Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-06pager: find out pager setting from configurationLibravatar Junio C Hamano1-1/+4
It was very unfortunate that we added core.pager setting to the configuration file; even when the underlying command does not care if there is no git repository is involved (think "git diff --no-index"), the user would now rightfully want the configuration setting to be honored, which means we would need to read the configuration file before we launch the pager. This is a minimum change in the sense that it restores the old behaviour of not even reading config in setup_git_directory(), but have the core.pager honored when we know it matters. Note that this does not cover "git -p --git-dir where command"; the -p option immediately trigger the pager settings before we even see --git-dir to learn where the configuration file is, so we will end up reading the configuration from the place where we would _normally_ find the git repository. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-07-04Add core.pager config variable.Libravatar Brian Gernhardt1-0/+2
This adds a configuration variable that performs the same function as, but is overridden by, GIT_PAGER. Signed-off-by: Brian Gernhardt <benji@silverinsanity.com> Acked-by: Johannes E. Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-02-05pager: Work around window resizing bug in 'less'Libravatar Linus Torvalds1-0/+12
If you resize the terminal while less is waiting for input, less will exit entirely without even showing the output. This is very noticeable if you do something like "git diff" on a big and cold-cache tree and git takes a few seconds to think, and then you resize the window while it's preparing. Boom. No output AT ALL. The way to reproduce the problem is to do some pager operation that takes a while in git, and resizing the window while git is thinking about the output. Try git diff --stat v2.6.12.. in the kernel tree to do something where it takes a while for git to start outputting information. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-10-22pager: default to LESS=FRSX not LESS=FRSLibravatar Junio C Hamano1-1/+1
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-10-20pager: default to LESS=FRSLibravatar Junio C Hamano1-1/+1
Recent change to paginate "git diff" by default is often irritating when you do not have any change (or very small change) in your working tree. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-31pager: environment variable GIT_PAGER to override PAGERLibravatar Matthias Lederhofer1-1/+3
Signed-off-by: Matthias Lederhofer <matled@gmx.net> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-10Fix linking for not-so-clever linkers.Libravatar Johannes Schindelin1-2/+0
On one of my systems, the linker is not intelligent enough to link with pager.o (in libgit.a) when only the variable pager_in_use is needed. The consequence is that the linker complains about an undefined variable. So, put the variable into environment.o, where it is linked always. Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-09"git -p cmd" to page anywhereLibravatar Junio C Hamano1-0/+4
This allows you to say: git -p diff v2.6.16-rc5.. and the command pipes the output of any git command to your pager. [jc: this resurrects a month old RFC patch with improvement suggested by Linus to call it --paginate instead of --less.] Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-06-17diff options: add --colorLibravatar Johannes Schindelin1-1/+1
This patch is a slightly adjusted version of Junio's patch: http://www.gelato.unsw.edu.au/archives/git/0604/19354.html However, instead of using a config variable, this patch makes it available as a diff option. Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-04-21Merge branch 'fix'Libravatar Junio C Hamano1-0/+2
* fix: git-log produces no output
2006-04-21git-log produces no outputLibravatar Linus Torvalds1-0/+2
When $PAGER is set to 'less -i', we used to fail because we assumed the $PAGER is a command and simply exec'ed it. Try exec first, and then run it through shell if it fails. This allows even funkier PAGERs like these ;-): PAGER='sed -e "s/^/`date`: /" | more' PAGER='contrib/colordiff.perl | less -RS' Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-04-16Do not fork PAGER=catLibravatar Junio C Hamano1-1/+1
Unless the user has a nonstandard "cat" command that does not meow like a cat, this should not break anything and would save an extra pipe. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-04-16pager: do not fork a pager if PAGER is set to empty.Libravatar Johannes Schindelin1-7/+10
This skips an extra pipe, and helps debugging tremendously. [jc: PAGER=cat is a questionable hack and should be done as a separate patch. ] Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-28Introduce trivial new pager.c helper infrastructureLibravatar Linus Torvalds1-0/+48
This introduces the new function void setup_pager(void); to set up output to be written through a pager applocation. All in preparation for doing the simple scripts in C. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
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