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Add option to tune diff highlighting
The new option `diff-column-highlight` can be set to highlight all changed lines, only empty added/removed lines, or to not highlight in any special way. This option is only in effect when `diff-show-signs` is turned off. Default is to only highlight empty lines.
1 parent 1e9d807 commit 06e0edc

8 files changed

+139
-1
lines changed

‎doc/tigrc.5.adoc

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@@ -277,6 +277,16 @@ The following variables can be set:
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that disabling signs only makes sense when coloring is used to
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distinguish added and removed lines. On by default.
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'diff-column-highlight' (enum) [no|all|only-empty]::
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Highlight the left-most column in diff views visually when the option
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'diff-show-signs' is not in effect. All added/removed lines can be
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highlighted, or only empty lines. Changed lines are indicated in the
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first column by a space highlighted by the color `diff-add-highlight` or
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`diff-del-highlight`, respectively. Keeping the `standout` (reverse)
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property set for these is suggested, as white space is otherwise
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invisible. Default is to highlight only empty lines.
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'diff-highlight' (mixed)::
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Whether to highlight diffs using Git's 'diff-highlight' program. Defaults

‎include/tig/options.h

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@@ -38,6 +38,7 @@ typedef struct view_column *view_settings;
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_(diff_context, int, VIEW_DIFF_LIKE) \
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_(diff_noprefix, bool, VIEW_NO_FLAGS) \
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_(diff_show_signs, bool, VIEW_NO_FLAGS) \
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_(diff_column_highlight, enum diff_column_highlight, VIEW_NO_FLAGS) \
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_(diff_options, const char **, VIEW_DIFF_LIKE) \
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_(diff_highlight, const char *, VIEW_DIFF_LIKE) \
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_(diff_view, view_settings, VIEW_NO_FLAGS) \

‎include/tig/types.h

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@@ -161,6 +161,11 @@ bool map_enum_do(const struct enum_map_entry *map, size_t map_size, int *value,
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_(REFRESH_MODE, AFTER_COMMAND), \
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_(REFRESH_MODE, PERIODIC),
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#define DIFF_COLUMN_HIGHLIGHT_ENUM(_) \
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_(DIFF_COLUMN_HIGHLIGHT, NO), \
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_(DIFF_COLUMN_HIGHLIGHT, ALL), \
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_(DIFF_COLUMN_HIGHLIGHT, ONLY_EMPTY)
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#define ENUM_INFO(_) \
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_(author, AUTHOR_ENUM) \
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_(commit_order, COMMIT_ORDER_ENUM) \
@@ -176,6 +181,7 @@ bool map_enum_do(const struct enum_map_entry *map, size_t map_size, int *value,
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_(reference_type, REFERENCE_ENUM) \
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_(refresh_mode, REFRESH_MODE_ENUM) \
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_(status_label, STATUS_LABEL_ENUM) \
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_(diff_column_highlight, DIFF_COLUMN_HIGHLIGHT_ENUM) \
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#define DEFINE_ENUMS(name, macro) DEFINE_ENUM(name, macro)
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ENUM_INFO(DEFINE_ENUMS)

‎src/draw.c

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@@ -80,8 +80,29 @@ draw_chars(struct view *view, enum line_type type, const char *string, int lengt
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!opt_diff_show_signs &&
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view->col == 0 &&
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(type == LINE_DIFF_ADD || type == LINE_DIFF_DEL || type == LINE_DEFAULT) &&
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(string[0] == ' ' || string[0] == '+' || string[0] == '-')
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(string[0] == ' ' || string[0] == '+' || string[0] == '-')
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) {
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if (opt_diff_column_highlight == DIFF_COLUMN_HIGHLIGHT_ALL) {
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if (type == LINE_DIFF_ADD) {
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set_view_attr(view, LINE_DIFF_ADD_HIGHLIGHT);
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} else if (type == LINE_DIFF_DEL) {
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set_view_attr(view, LINE_DIFF_DEL_HIGHLIGHT);
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}
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waddch(view->win, ' ');
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set_view_attr(view, type);
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}
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else if (opt_diff_column_highlight == DIFF_COLUMN_HIGHLIGHT_ONLY_EMPTY && len == 1) {
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if (type == LINE_DIFF_ADD) {
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set_view_attr(view, LINE_DIFF_ADD_HIGHLIGHT);
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waddch(view->win, ' ');
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} else if (type == LINE_DIFF_DEL) {
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set_view_attr(view, LINE_DIFF_DEL_HIGHLIGHT);
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waddch(view->win, ' ');
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}
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set_view_attr(view, type);
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}
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waddnstr(view->win, string+1, len-1);
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} else {
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waddnstr(view->win, string, len);

‎test/diff/diff-hide-signs-highlight-all-test

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@@ -0,0 +1,49 @@
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#!/bin/sh
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. libtest.sh
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. libgit.sh
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tigrc <<EOF
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set diff-show-signs = false
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set diff-column-highlight = all
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EOF
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steps '
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:save-display diff-hide-signs.screen
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'
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in_work_dir create_repo_from_tgz "$base_dir/files/scala-js-benchmarks.tgz"
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test_tig show master^
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assert_equals 'diff-hide-signs.screen' '' <<EOF
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commit a1dcf1aaa11470978db1d5d8bcf9e16201eb70ff
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Author: Jonas Fonseca <[email protected]>
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AuthorDate: Sat Mar 1 15:59:02 2014 -0500
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Commit: Jonas Fonseca <[email protected]>
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CommitDate: Sat Mar 1 15:59:02 2014 -0500
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Add type parameter for js.Dynamic
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---
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common/src/main/scala/org/scalajs/benchmark/Benchmark.scala | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/common/src/main/scala/org/scalajs/benchmark/Benchmark.scala b/commo
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index 65f914a..3aa4320 100644
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--- a/common/src/main/scala/org/scalajs/benchmark/Benchmark.scala
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+++ b/common/src/main/scala/org/scalajs/benchmark/Benchmark.scala
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@@ -15,7 +15,7 @@ object Benchmark {
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val benchmarks = js.Array[Benchmark]()
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val benchmarkApps = js.Array[BenchmarkApp]()
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val global = js.Dynamic.global.asInstanceOf[js.Dictionary]
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val global = js.Dynamic.global.asInstanceOf[js.Dictionary[js.Any]]
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global("runScalaJSBenchmarks") = runBenchmarks _
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global("initScalaJSBenchmarkApps") = initBenchmarkApps _
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[diff] a1dcf1aaa11470978db1d5d8bcf9e16201eb70ff - line 1 of 24 100%
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EOF

‎test/diff/diff-hide-signs-highlight-only-empty-test

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#!/bin/sh
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. libtest.sh
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. libgit.sh
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tigrc <<EOF
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set diff-show-signs = false
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set diff-column-highlight = only-empty
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EOF
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steps '
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:save-display diff-hide-signs.screen
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'
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in_work_dir create_repo_from_tgz "$base_dir/files/scala-js-benchmarks.tgz"
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test_tig show master^
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assert_equals 'diff-hide-signs.screen' '' <<EOF
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commit a1dcf1aaa11470978db1d5d8bcf9e16201eb70ff
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Author: Jonas Fonseca <[email protected]>
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AuthorDate: Sat Mar 1 15:59:02 2014 -0500
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Commit: Jonas Fonseca <[email protected]>
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CommitDate: Sat Mar 1 15:59:02 2014 -0500
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Add type parameter for js.Dynamic
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---
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common/src/main/scala/org/scalajs/benchmark/Benchmark.scala | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/common/src/main/scala/org/scalajs/benchmark/Benchmark.scala b/commo
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index 65f914a..3aa4320 100644
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--- a/common/src/main/scala/org/scalajs/benchmark/Benchmark.scala
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+++ b/common/src/main/scala/org/scalajs/benchmark/Benchmark.scala
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@@ -15,7 +15,7 @@ object Benchmark {
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val benchmarks = js.Array[Benchmark]()
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val benchmarkApps = js.Array[BenchmarkApp]()
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val global = js.Dynamic.global.asInstanceOf[js.Dictionary]
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val global = js.Dynamic.global.asInstanceOf[js.Dictionary[js.Any]]
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global("runScalaJSBenchmarks") = runBenchmarks _
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global("initScalaJSBenchmarkApps") = initBenchmarkApps _
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[diff] a1dcf1aaa11470978db1d5d8bcf9e16201eb70ff - line 1 of 24 100%
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EOF

‎test/diff/diff-hide-signs-test

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@@ -5,6 +5,7 @@
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tigrc <<EOF
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set diff-show-signs = false
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set diff-column-hightlight = no
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EOF
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steps '

‎tigrc

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@@ -115,6 +115,7 @@ set show-notes = yes # When non-bool passed as `--show-notes=...` (diff)
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#set diff-highlight = true # String (or bool): Path to diff-highlight script,
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# defaults to `diff-highlight`.
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set diff-show-signs = yes # Show diff signs (+ and -) at the start of diff lines
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set diff-column-highlight = only-empty # Enum: no, all, only-empty
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#set blame-options = -C -C -C # User-defined options for `tig blame` (git-blame)
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#set log-options = --pretty=raw # User-defined options for `tig log` (git-log)
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#set main-options = -n 1000 # User-defined options for `tig` (git-log)

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