When we read a color value either from a config file or from
the command line, we use git_config_colorbool to convert it
from the tristate always/never/auto into a single yes/no
boolean value.
This has some timing implications with respect to starting
a pager.
If we start (or decide not to start) the pager before
checking the colorbool, everything is fine. Either isatty(1)
will give us the right information, or we will properly
check for pager_in_use().
However, if we decide to start a pager after we have checked
the colorbool, things are not so simple. If stdout is a tty,
then we will have already decided to use color. However, the
user may also have configured color.pager not to use color
with the pager. In this case, we need to actually turn off
color. Unfortunately, the pager code has no idea which color
variables were turned on (and there are many of them
throughout the code, and they may even have been manipulated
after the colorbool selection by something like "--color" on
the command line).
This bug can be seen any time a pager is started after
config and command line options are checked. This has
affected "git diff" since 89d07f7 (diff: don't run pager if
user asked for a diff style exit code, 2007-08-12). It has
also affect the log family since 1fda91b (Fix 'git log'
early pager startup error case, 2010-08-24).
This patch splits the notion of parsing a colorbool and
actually checking the configuration. The "use_color"
variables now have an additional possible value,
GIT_COLOR_AUTO. Users of the variable should use the new
"want_color()" wrapper, which will lazily determine and
cache the auto-color decision.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This lets us store more than just a bit flag for whether we
want color; we can also store whether we want automatic
colors. This can be useful for making the automatic-color
decision closer to the point of use.
This mostly just involves replacing DIFF_OPT_* calls with
manipulations of the flag. The biggest exception is that
calls to DIFF_OPT_TST must check for "o->use_color > 0",
which lets an "unknown" value (i.e., the default) stay at
"no color". In the previous code, a value of "-1" was not
propagated at all.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This also adds the new colors to show-branch that were added a while
back for graph output.
Signed-off-by: Dan McGee <dpmcgee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Currently, we have identical code for generating revision marks ('<',
'>', '-') in 5 places.
Factor out the code to a single function get_revision_mark() for easier
maintenance and extensibility.
Note that the check for !!revs in graph.c (which gets removed
effectively by this patch) is superfluous.
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Currently, the graph code is hardcoded to use ANSI color escapes for
coloring the column characters in the generated graphs. This patch
allows a custom scheme of colors to be set at runtime, allowing
different types of color escapes to be used.
A new function - graph_set_column_colors() - is added to the graph.h API,
which allows a custom column_colors array (and column_colors_max value)
to replace the builtin ANSI array (and _max value). The new function -
if used - must be called before graph_init() is called.
Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In order to successfully use the graph API from a context other than the
stdout/command-line scenario (where the graph_show_* functions are
suitable), we need direct access to graph_next_line(), to drive the
graph drawing process.
Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
It will look better if the 'git log --graph' print
the graph pading lines before the diff output just
like what it does for commit message.
And this patch leverage the new diff prefix callback
function to achieve this.
Signed-off-by: Bo Yang <struggleyb.nku@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add GIT_COLOR_BOLD_* macros to set both bold and the color in one
sequence. This saves two characters of output ("ESC [ m", minus ";")
and makes the code more readable.
Add the remaining GIT_COLOR_BG_* macros to make the list complete.
The white and black colors are not included since they look bad on most
terminals.
Signed-off-by: Mark Lodato <lodatom@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Previously, graph_is_interesting() did not behave quite the same way as
the code in get_revision(). As a result, it would sometimes think
commits were uninteresting, even though get_revision() would return
them. This resulted in incorrect lines in the graph output.
This change creates a get_commit_action() function, which
graph_is_interesting() and simplify_commit() both now use to determine
if a commit will be shown. It is identical to the old simplify_commit()
behavior, except that it never calls rewrite_parents().
This problem was reported by Santi Béjar. The following command
would exhibit the problem before, but now works correctly:
git log --graph --simplify-by-decoration --oneline v1.6.3.3
Previously git graph did not display the output for this command
correctly between f29ac4f and 66996ec, among other places.
Signed-off-by: Adam Simpkins <simpkins@facebook.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Use a new color for commits that don't have any previously printed
children. The following command demonstrates the changes:
git log --graph --pretty=tformat:'%h %s%n' -7 481c7a618b0793
Now the two independent lines of development are displayed with
different colors, instead of both using the same color.
Signed-off-by: Adam Simpkins <simpkins@facebook.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Brought to you thanks to coccinelle:
---8<----
@@
expression *E;
@@
(
E ==
- 0
+ NULL
|
E !=
- 0
+ NULL
|
E =
- 0
+ NULL
)
@@
identifier f;
type T;
@@
T *f(...) {
<...
- return 0;
+ return NULL;
...>
}
--->8----
There are a lot more hits in compat/nedmallox and compat/regex but these
are borrowed code we rather do not want to maintain our own forks for,
and this patch refrains from touching them.
Signed-off-by: Pierre Habouzit <madcoder@debian.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Use horizontal lines instead of long diagonal lines during the
collapsing state of graph rendering. For example what used to be:
| | | | |
| | | |/
| | |/|
| |/| |
|/| | |
| | | |
is now
| | | | |
| |_|_|/
|/| | |
| | | |
This results in more compact and legible graphs.
Signed-off-by: Allan Caffee <allan.caffee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
An off by one error was causing octopus merges with 3 parents to not be
rendered correctly. This regression was introduced by 427fc5.
Signed-off-by: Allan Caffee <allan.caffee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
An extra space is being inserted between the "commit" column and all of
the successive edges. Remove this space. This regression was
introduced by 427fc5b.
Signed-off-by: Allan Caffee <allan.caffee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Modified the graph drawing logic to colorize edges based on parent-child
relationships similiarly to gitk.
Signed-off-by: Allan Caffee <allan.caffee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Many call sites use strbuf_init(&foo, 0) to initialize local
strbuf variable "foo" which has not been accessed since its
declaration. These can be replaced with a static initialization
using the STRBUF_INIT macro which is just as readable, saves a
function call, and takes up fewer lines.
Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
These function are not used anywhere. Also removes graph_release()
that is never called.
Signed-off-by: Nanako Shiraishi <nanako3@lavabit.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Previously, merge commits were printed with 'M' instead of '*'. This
had the potential to confuse users when not all parents of the merge
commit were included in the log output.
As Junio has pointed out, merge commits can almost always be easily
identified from the log message, anyway.
Signed-off-by: Adam Simpkins <adam@adamsimpkins.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This change teaches the graph API that only the first parent of each
commit is interesting when "--first-parent" was specified.
This change also consolidates the graph parent walking logic into two
new internal functions, first_interesting_parent() and
next_interesting_parent(). A simpler fix would have been to simply
break at the end of the 2 existing for loops when
graph->revs->first_parent_only is set. However, this change seems
nicer, especially if we ever need to add any new loops over the parent
list in the future.
Signed-off-by: Adam Simpkins <adam@adamsimpkins.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When an octopus merge is printed, several lines are printed before it to
move over existing branch lines to its right. This is needed to make
room for the children of the octopus merge. For example:
| | | |
| | \ \
| | \ \
| | \ \
| M---. \ \
| |\ \ \ \ \
However, this step isn't necessary if there are no branch lines to the
right of the octopus merge. Therefore, skip this step when it is not
needed, to avoid printing extra lines that don't really serve any
purpose.
Signed-off-by: Adam Simpkins <adam@adamsimpkins.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This change improves the way merge commits are displayed, to eliminate a
few visual artifacts. Previously, merge commits were displayed as:
| M \
| |\ |
As pointed out by Teemu Likonen, this didn't look nice if the rightmost
branch line was displayed as '\' on the previous line, as it then
appeared to have an extra space in it:
| |\
| M \
| |\ |
This change updates the code so that branch lines to the right of merge
commits are printed slightly differently depending on how the previous
line was displayed:
| |\ | | | | | /
| M \ | M | | M |
| |\ \ | |\ \ | |\ \
Signed-off-by: Adam Simpkins <adam@adamsimpkins.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Now get_revision() sorts the boundary commits when topo_order is set.
Since sort_in_topological_order() takes a struct commit_list, it first
places the boundary commits into revs->commits.
Signed-off-by: Adam Simpkins <adam@adamsimpkins.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Previously the graphing API wasn't aware of the revs->boundary flag, and
it always assumed that commits marked UNINTERESTING would not be
displayed. As a result, the boundary commits were printed at the end of
the log output, but they didn't have any branch lines connecting them to
their children in the graph.
There was also another bug in the get_revision() code that caused
graph_update() to be called twice on the first boundary commit. This
caused the graph API to think that a commit had been skipped, and print
a "..." line in the output.
Signed-off-by: Adam Simpkins <adam@adamsimpkins.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
With the --graph option, the graph already outputs 'o' instead of '*'
for boundary commits. Make it emit '<' or '>' when --left-right is
specified.
(This change also disables the '^' prefix for UNINTERESTING commits.
The graph code currently doesn't print anything special for these
commits, since it assumes no UNINTERESTING, non-BOUNDARY commits are
displayed. This is potentially a bug if UNINTERESTING non-BOUNDARY
commits can actually be displayed via some code path.)
[jc: squashed the left-right change from Dscho and Adam's fixup into one]
Signed-off-by: Adam Simpkins <adam@adamsimpkins.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Previously, the graphing code printed lines coming out of a merge commit
for all of its parents, even if some of them were uninteresting. Now it
only prints lines for interesting commits.
For example, for a merge commit where only the first parent is
interesting, the code now prints:
* merge commit
* interesting child
instead of:
M merge commit
|\
* interesting child
Signed-off-by: Adam Simpkins <adam@adamsimpkins.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The graphing code had a bug that caused it to output branch lines
incorrectly after ignoring an uninteresting commit. When computing how
to match up the branch lines from the current commit to the next one, it
forgot to take into account that it needed to initially start with 2
empty spaces where the missing commit would have gone.
So, instead of drawing this,
| * | <- Commit with uninteresting parent
| /
* |
It used to incorrectly draw this:
| * | <- Commit with uninteresting parent
* |
Signed-off-by: Adam Simpkins <adam@adamsimpkins.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This change improves the calculation of the amount of horizontal
padding, so that there is always exactly 1 space of padding.
Previously, most commits had 3 spaces of padding, but commits that
didn't have any children in the graph had only 1 space of padding.
Signed-off-by: Adam Simpkins <adam@adamsimpkins.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This new API allows the commit history to be displayed as a text-based
graphical representation.
Signed-off-by: Adam Simpkins <adam@adamsimpkins.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jeff King
Dan McGee
Michael J Gruber
Junio C Hamano
Ralf Wildenhues
Johan Herland
Bo Yang
Mark Lodato
Adam Simpkins
Pierre Habouzit
Mike Ralphson
Allan Caffee
Brandon Casey
Nanako Shiraishi
Adam Simpkins