git/pager.c, branch v1.8.2.2

Move setup_diff_pager to libgit.a

2012-10-29T07:08:30Z

This is used by diff-no-index.c, part of libgit.a while it stays in builtin/diff.c. Move it to diff.c so that we won't get undefined reference if a program that uses libgit.a happens to pull it in. While at it, move check_pager from git.c to pager.c. It makes more sense there and pager.c is also part of libgit.a Signed-off-by: Nguyễn Thái Ngọc Duy Signed-off-by: Jeff King

pager: drop "wait for output to run less" hack

2012-06-05T16:38:00Z

Commit 35ce862 (pager: Work around window resizing bug in 'less', 2007-01-24) causes git's pager sub-process to wait to receive input after forking but before exec-ing the pager. To handle this, run-command had to grow a "pre-exec callback" feature. Unfortunately, this feature does not work at all on Windows (where we do not fork), and interacts poorly with run-command's parent notification system. Its use should be discouraged. The bug in less was fixed in version 406, which was released in June 2007. It is probably safe at this point to remove our workaround. That lets us rip out the preexec_cb feature entirely. Signed-off-by: Jeff King Signed-off-by: Junio C Hamano

Stop starting pager recursively

2012-04-27T16:26:38Z

git-column can be used as a pager for other git commands, something like this: GIT_PAGER="git -p column --mode='dense color'" git -p branch The problem with this is that "git -p column" also has $GIT_PAGER set so the pager runs itself again as another pager. The end result is an infinite loop of forking. Other git commands have the same problem if being abused this way. Check if $GIT_PAGER is already set and stop launching another pager. Signed-off-by: Nguyễn Thái Ngọc Duy Signed-off-by: Junio C Hamano

Merge branch 'zj/decimal-width'

2012-02-20T08:15:11Z

* zj/decimal-width: make lineno_width() from blame reusable for others Conflicts: cache.h pager.c

make lineno_width() from blame reusable for others

2012-02-15T00:16:19Z

builtin/blame.c has a helper function to compute how many columns we need to show a line-number, whose implementation is reusable as a more generic helper function to count the number of columns necessary to show any cardinal number. Rename it to decimal_width(), move it to pager.c and export it for use by future callers. Signed-off-by: Zbigniew Jędrzejewski-Szmek Signed-off-by: Junio C Hamano

pager: find out the terminal width before spawning the pager

2012-02-13T23:08:47Z

term_columns() checks for terminal width via ioctl(2) on the standard output, but we spawn the pager too early for this check to be useful. The effect of this buglet can be observed by opening a wide terminal and running "git -p help --all", which still shows 80-column output, while "git help --all" uses the full terminal width. Run the check before we spawn the pager to fix this. While at it, move term_columns() to pager.c and export it from cache.h so that callers other than the help subsystem can use it. Signed-off-by: Zbigniew Jędrzejewski-Szmek Signed-off-by: Junio C Hamano

setup_pager: set GIT_PAGER_IN_USE

2011-08-18T21:17:12Z

We have always set a global "spawned_pager" variable when we start the pager. This lets us make the auto-color decision later in the program as as "we are outputting to a terminal, or to a pager which can handle colors". Commit 6e9af86 added support for the GIT_PAGER_IN_USE environment variable. An external program calling git (e.g., git-svn) could set this variable to indicate that it had already started the pager, and that the decision about auto-coloring should take that into account. However, 6e9af86 failed to do the reverse, which is to tell external programs when git itself has started the pager. Thus a git command implemented as an external script that has the pager turned on (e.g., "git -p stash show") would not realize it was going to a pager, and would suppress colors. This patch remedies that; we always set GIT_PAGER_IN_USE when we start the pager, and the value is respected by both this program and any spawned children. Signed-off-by: Jeff King Signed-off-by: Junio C Hamano

Make 'git var GIT_PAGER' always print the configured pager

2010-02-15T02:23:17Z

Scripted commands that want to use git’s configured pager know better than ‘git var’ does whether stdout is going to be a tty at the appropriate time. Checking isatty(1) as git_pager() does now won’t cut it, since the output of git var itself is almost never a terminal. The symptom is that when used by humans, ‘git var GIT_PAGER’ behaves as it should, but when used by scripts, it always returns ‘cat’! So avoid tricks with isatty() and just always print the configured pager. This does not fix the callers to check isatty(1) themselves yet. Nevertheless, this patch alone is enough to fix 'am --interactive'. Thanks to Sebastian Celis for the report and Jeff King for the analysis. Reported-by: Sebastian Celis Signed-off-by: Jonathan Nieder Signed-off-by: Junio C Hamano

run-command: convert simple callsites to use_shell

2010-01-06T07:41:50Z

Now that we have the use_shell feature, these callsites can all be converted with small changes. Signed-off-by: Jeff King Signed-off-by: Junio C Hamano

Provide a build time default-pager setting

2009-11-13T20:20:56Z

Provide a DEFAULT_PAGER knob so packagers can set the fallback pager to something appropriate during the build. Examples: On (old) solaris systems, /usr/bin/less (typically the first less found) doesn't understand the default arguments (FXRS), which forces users to alter their environment (PATH, GIT_PAGER, LESS, etc) or have a local or global gitconfig before paging works as expected. On Debian systems, by policy packages must fall back to the 'pager' command, so that changing the target of the /usr/bin/pager symlink changes the default pager for all packages at once. Signed-off-by: Jonathan Nieder Signed-off-by: Ben Walton Signed-off-by: Jonathan Nieder Signed-off-by: Junio C Hamano