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authorJeff King <peff@peff.net>2017-07-13 11:08:46 -0400
committerJunio C Hamano <gitster@pobox.com>2017-07-13 12:42:51 -0700
commit18fb7ffc3dc9df081c241d6b7105b4058d5746d3 (patch)
tree260ba52308d914a9dd7464aeb92348cd370e3ced /Documentation/pretty-formats.txt
parentd75dfb1089d471501f6042341bed647525f6e293 (diff)
downloadgit-18fb7ffc3dc9df081c241d6b7105b4058d5746d3.tar.gz
pretty: respect color settings for %C placeholders
The color placeholders have traditionally been unconditional, showing colors even when git is not otherwise configured to do so. This was not so bad for their original use, which was on the command-line (and the user could decide at that moment whether to add colors or not). But these days we have configured formats via pretty.*, and those should operate correctly in multiple contexts. In 3082517 (log --format: teach %C(auto,black) to respect color config, 2012-12-17), we gave an extended placeholder that could be used to accomplish this. But it's rather clunky to use, because you have to specify it individually for each color (and their matching resets) in the format. We shied away from just switching the default to auto, because it is technically breaking backwards compatibility. However, there's not really a use case for unconditional colors. The most plausible reason you would want them is to redirect "git log" output to a file. But there, the right answer is --color=always, as it does the right thing both with custom user-format colors and git-generated colors. So let's switch to the more useful default. In the off-chance that somebody really does find a use for unconditional colors without wanting to enable the rest of git's colors, we provide a new %C(always,...) to enable the old behavior. And we can remind them of --color=always in the documentation. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'Documentation/pretty-formats.txt')
-rw-r--r--Documentation/pretty-formats.txt18
1 files changed, 11 insertions, 7 deletions
diff --git a/Documentation/pretty-formats.txt b/Documentation/pretty-formats.txt
index 4d6dac5770..973d19606b 100644
--- a/Documentation/pretty-formats.txt
+++ b/Documentation/pretty-formats.txt
@@ -173,13 +173,17 @@ endif::git-rev-list[]
- '%Cblue': switch color to blue
- '%Creset': reset color
- '%C(...)': color specification, as described under Values in the
- "CONFIGURATION FILE" section of linkgit:git-config[1];
- adding `auto,` at the beginning (e.g. `%C(auto,red)`) will emit
- color only when colors are enabled for log output (by `color.diff`,
- `color.ui`, or `--color`, and respecting the `auto` settings of the
- former if we are going to a terminal). `auto` alone (i.e.
- `%C(auto)`) will turn on auto coloring on the next placeholders
- until the color is switched again.
+ "CONFIGURATION FILE" section of linkgit:git-config[1].
+ By default, colors are shown only when enabled for log output (by
+ `color.diff`, `color.ui`, or `--color`, and respecting the `auto`
+ settings of the former if we are going to a terminal). `%C(auto,...)`
+ is accepted as a historical synonym for the default (e.g.,
+ `%C(auto,red)`). Specifying `%C(always,...) will show the colors
+ even when color is not otherwise enabled (though consider
+ just using `--color=always` to enable color for the whole output,
+ including this format and anything else git might color). `auto`
+ alone (i.e. `%C(auto)`) will turn on auto coloring on the next
+ placeholders until the color is switched again.
- '%m': left (`<`), right (`>`) or boundary (`-`) mark
- '%n': newline
- '%%': a raw '%'