Merge branch 'sb/diff-color-move'

"git diff" has been taught to optionally paint new lines that are
the same as deleted lines elsewhere differently from genuinely new
lines.

* sb/diff-color-move: (25 commits)
  diff: document the new --color-moved setting
  diff.c: add dimming to moved line detection
  diff.c: color moved lines differently, plain mode
  diff.c: color moved lines differently
  diff.c: buffer all output if asked to
  diff.c: emit_diff_symbol learns about DIFF_SYMBOL_SUMMARY
  diff.c: emit_diff_symbol learns about DIFF_SYMBOL_STAT_SEP
  diff.c: convert word diffing to use emit_diff_symbol
  diff.c: convert show_stats to use emit_diff_symbol
  diff.c: convert emit_binary_diff_body to use emit_diff_symbol
  submodule.c: migrate diff output to use emit_diff_symbol
  diff.c: emit_diff_symbol learns DIFF_SYMBOL_REWRITE_DIFF
  diff.c: emit_diff_symbol learns about DIFF_SYMBOL_BINARY_FILES
  diff.c: emit_diff_symbol learns DIFF_SYMBOL_HEADER
  diff.c: emit_diff_symbol learns DIFF_SYMBOL_FILEPAIR_{PLUS, MINUS}
  diff.c: emit_diff_symbol learns DIFF_SYMBOL_CONTEXT_INCOMPLETE
  diff.c: emit_diff_symbol learns DIFF_SYMBOL_WORDS[_PORCELAIN]
  diff.c: migrate emit_line_checked to use emit_diff_symbol
  diff.c: emit_diff_symbol learns DIFF_SYMBOL_NO_LF_EOF
  diff.c: emit_diff_symbol learns DIFF_SYMBOL_CONTEXT_FRAGINFO
  ...
This commit is contained in:
Junio C Hamano 2017-08-26 22:55:03 -07:00
commit b6c4058f97
9 changed files with 1624 additions and 322 deletions

View File

@ -1077,14 +1077,25 @@ This does not affect linkgit:git-format-patch[1] or the
'git-diff-{asterisk}' plumbing commands. Can be overridden on the
command line with the `--color[=<when>]` option.
diff.colorMoved::
If set to either a valid `<mode>` or a true value, moved lines
in a diff are colored differently, for details of valid modes
see '--color-moved' in linkgit:git-diff[1]. If simply set to
true the default color mode will be used. When set to false,
moved lines are not colored.
color.diff.<slot>::
Use customized color for diff colorization. `<slot>` specifies
which part of the patch to use the specified color, and is one
of `context` (context text - `plain` is a historical synonym),
`meta` (metainformation), `frag`
(hunk header), 'func' (function in hunk header), `old` (removed lines),
`new` (added lines), `commit` (commit headers), or `whitespace`
(highlighting whitespace errors).
`new` (added lines), `commit` (commit headers), `whitespace`
(highlighting whitespace errors), `oldMoved` (deleted lines),
`newMoved` (added lines), `oldMovedDimmed`, `oldMovedAlternative`,
`oldMovedAlternativeDimmed`, `newMovedDimmed`, `newMovedAlternative`
and `newMovedAlternativeDimmed` (See the '<mode>'
setting of '--color-moved' in linkgit:git-diff[1] for details).
color.decorate.<slot>::
Use customized color for 'git log --decorate' output. `<slot>` is one

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@ -231,6 +231,42 @@ ifdef::git-diff[]
endif::git-diff[]
It is the same as `--color=never`.
--color-moved[=<mode>]::
Moved lines of code are colored differently.
ifdef::git-diff[]
It can be changed by the `diff.colorMoved` configuration setting.
endif::git-diff[]
The <mode> defaults to 'no' if the option is not given
and to 'zebra' if the option with no mode is given.
The mode must be one of:
+
--
no::
Moved lines are not highlighted.
default::
Is a synonym for `zebra`. This may change to a more sensible mode
in the future.
plain::
Any line that is added in one location and was removed
in another location will be colored with 'color.diff.newMoved'.
Similarly 'color.diff.oldMoved' will be used for removed lines
that are added somewhere else in the diff. This mode picks up any
moved line, but it is not very useful in a review to determine
if a block of code was moved without permutation.
zebra::
Blocks of moved code are detected greedily. The detected blocks are
painted using either the 'color.diff.{old,new}Moved' color or
'color.diff.{old,new}MovedAlternative'. The change between
the two colors indicates that a new block was detected. If there
are fewer than 3 adjacent moved lines, they are not marked up
as moved, but the regular colors 'color.diff.{old,new}' will be
used.
dimmed_zebra::
Similar to 'zebra', but additional dimming of uninteresting parts
of moved code is performed. The bordering lines of two adjacent
blocks are considered interesting, the rest is uninteresting.
--
--word-diff[=<mode>]::
Show a word diff, using the <mode> to delimit changed words.
By default, words are delimited by whitespace; see

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@ -1955,6 +1955,8 @@ void shift_tree_by(const struct object_id *, const struct object_id *, struct ob
#define WS_TRAILING_SPACE (WS_BLANK_AT_EOL|WS_BLANK_AT_EOF)
#define WS_DEFAULT_RULE (WS_TRAILING_SPACE|WS_SPACE_BEFORE_TAB|8)
#define WS_TAB_WIDTH_MASK 077
/* All WS_* -- when extended, adapt diff.c emit_symbol */
#define WS_RULE_MASK 07777
extern unsigned whitespace_rule_cfg;
extern unsigned whitespace_rule(const char *);
extern unsigned parse_whitespace_rule(const char *);

View File

@ -42,6 +42,8 @@ struct strbuf;
#define GIT_COLOR_BG_BLUE "\033[44m"
#define GIT_COLOR_BG_MAGENTA "\033[45m"
#define GIT_COLOR_BG_CYAN "\033[46m"
#define GIT_COLOR_FAINT "\033[2m"
#define GIT_COLOR_FAINT_ITALIC "\033[2;3m"
/* A special value meaning "no color selected" */
#define GIT_COLOR_NIL "NIL"

1321
diff.c

File diff suppressed because it is too large Load Diff

39
diff.h
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@ -148,9 +148,9 @@ struct diff_options {
int abbrev;
int ita_invisible_in_index;
/* white-space error highlighting */
#define WSEH_NEW 1
#define WSEH_CONTEXT 2
#define WSEH_OLD 4
#define WSEH_NEW (1<<12)
#define WSEH_CONTEXT (1<<13)
#define WSEH_OLD (1<<14)
unsigned ws_error_highlight;
const char *prefix;
int prefix_length;
@ -186,8 +186,27 @@ struct diff_options {
void *output_prefix_data;
int diff_path_counter;
struct emitted_diff_symbols *emitted_symbols;
enum {
COLOR_MOVED_NO = 0,
COLOR_MOVED_PLAIN = 1,
COLOR_MOVED_ZEBRA = 2,
COLOR_MOVED_ZEBRA_DIM = 3,
} color_moved;
#define COLOR_MOVED_DEFAULT COLOR_MOVED_ZEBRA
#define COLOR_MOVED_MIN_BLOCK_LENGTH 3
};
void diff_emit_submodule_del(struct diff_options *o, const char *line);
void diff_emit_submodule_add(struct diff_options *o, const char *line);
void diff_emit_submodule_untracked(struct diff_options *o, const char *path);
void diff_emit_submodule_modified(struct diff_options *o, const char *path);
void diff_emit_submodule_header(struct diff_options *o, const char *header);
void diff_emit_submodule_error(struct diff_options *o, const char *err);
void diff_emit_submodule_pipethrough(struct diff_options *o,
const char *line, int len);
enum color_diff {
DIFF_RESET = 0,
DIFF_CONTEXT = 1,
@ -197,7 +216,15 @@ enum color_diff {
DIFF_FILE_NEW = 5,
DIFF_COMMIT = 6,
DIFF_WHITESPACE = 7,
DIFF_FUNCINFO = 8
DIFF_FUNCINFO = 8,
DIFF_FILE_OLD_MOVED = 9,
DIFF_FILE_OLD_MOVED_ALT = 10,
DIFF_FILE_OLD_MOVED_DIM = 11,
DIFF_FILE_OLD_MOVED_ALT_DIM = 12,
DIFF_FILE_NEW_MOVED = 13,
DIFF_FILE_NEW_MOVED_ALT = 14,
DIFF_FILE_NEW_MOVED_DIM = 15,
DIFF_FILE_NEW_MOVED_ALT_DIM = 16
};
const char *diff_get_color(int diff_use_color, enum color_diff ix);
#define diff_get_color_opt(o, ix) \
@ -396,8 +423,8 @@ extern int parse_rename_score(const char **cp_p);
extern long parse_algorithm_value(const char *value);
extern int print_stat_summary(FILE *fp, int files,
int insertions, int deletions);
extern void print_stat_summary(FILE *fp, int files,
int insertions, int deletions);
extern void setup_diff_pager(struct diff_options *);
#endif /* DIFF_H */

View File

@ -478,9 +478,7 @@ static int prepare_submodule_summary(struct rev_info *rev, const char *path,
return prepare_revision_walk(rev);
}
static void print_submodule_summary(struct rev_info *rev, FILE *f,
const char *line_prefix,
const char *del, const char *add, const char *reset)
static void print_submodule_summary(struct rev_info *rev, struct diff_options *o)
{
static const char format[] = " %m %s";
struct strbuf sb = STRBUF_INIT;
@ -491,18 +489,12 @@ static void print_submodule_summary(struct rev_info *rev, FILE *f,
ctx.date_mode = rev->date_mode;
ctx.output_encoding = get_log_output_encoding();
strbuf_setlen(&sb, 0);
strbuf_addstr(&sb, line_prefix);
if (commit->object.flags & SYMMETRIC_LEFT) {
if (del)
strbuf_addstr(&sb, del);
}
else if (add)
strbuf_addstr(&sb, add);
format_commit_message(commit, format, &sb, &ctx);
if (reset)
strbuf_addstr(&sb, reset);
strbuf_addch(&sb, '\n');
fprintf(f, "%s", sb.buf);
if (commit->object.flags & SYMMETRIC_LEFT)
diff_emit_submodule_del(o, sb.buf);
else
diff_emit_submodule_add(o, sb.buf);
}
strbuf_release(&sb);
}
@ -529,11 +521,9 @@ void prepare_submodule_repo_env(struct argv_array *out)
* attempt to lookup both the left and right commits and put them into the
* left and right pointers.
*/
static void show_submodule_header(FILE *f, const char *path,
const char *line_prefix,
static void show_submodule_header(struct diff_options *o, const char *path,
struct object_id *one, struct object_id *two,
unsigned dirty_submodule, const char *meta,
const char *reset,
unsigned dirty_submodule,
struct commit **left, struct commit **right,
struct commit_list **merge_bases)
{
@ -542,11 +532,10 @@ static void show_submodule_header(FILE *f, const char *path,
int fast_forward = 0, fast_backward = 0;
if (dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
fprintf(f, "%sSubmodule %s contains untracked content\n",
line_prefix, path);
diff_emit_submodule_untracked(o, path);
if (dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
fprintf(f, "%sSubmodule %s contains modified content\n",
line_prefix, path);
diff_emit_submodule_modified(o, path);
if (is_null_oid(one))
message = "(new submodule)";
@ -588,31 +577,29 @@ static void show_submodule_header(FILE *f, const char *path,
}
output_header:
strbuf_addf(&sb, "%s%sSubmodule %s ", line_prefix, meta, path);
strbuf_addf(&sb, "Submodule %s ", path);
strbuf_add_unique_abbrev(&sb, one->hash, DEFAULT_ABBREV);
strbuf_addstr(&sb, (fast_backward || fast_forward) ? ".." : "...");
strbuf_add_unique_abbrev(&sb, two->hash, DEFAULT_ABBREV);
if (message)
strbuf_addf(&sb, " %s%s\n", message, reset);
strbuf_addf(&sb, " %s\n", message);
else
strbuf_addf(&sb, "%s:%s\n", fast_backward ? " (rewind)" : "", reset);
fwrite(sb.buf, sb.len, 1, f);
strbuf_addf(&sb, "%s:\n", fast_backward ? " (rewind)" : "");
diff_emit_submodule_header(o, sb.buf);
strbuf_release(&sb);
}
void show_submodule_summary(FILE *f, const char *path,
const char *line_prefix,
void show_submodule_summary(struct diff_options *o, const char *path,
struct object_id *one, struct object_id *two,
unsigned dirty_submodule, const char *meta,
const char *del, const char *add, const char *reset)
unsigned dirty_submodule)
{
struct rev_info rev;
struct commit *left = NULL, *right = NULL;
struct commit_list *merge_bases = NULL;
show_submodule_header(f, path, line_prefix, one, two, dirty_submodule,
meta, reset, &left, &right, &merge_bases);
show_submodule_header(o, path, one, two, dirty_submodule,
&left, &right, &merge_bases);
/*
* If we don't have both a left and a right pointer, there is no
@ -624,11 +611,11 @@ void show_submodule_summary(FILE *f, const char *path,
/* Treat revision walker failure the same as missing commits */
if (prepare_submodule_summary(&rev, path, left, right, merge_bases)) {
fprintf(f, "%s(revision walker failed)\n", line_prefix);
diff_emit_submodule_error(o, "(revision walker failed)\n");
goto out;
}
print_submodule_summary(&rev, f, line_prefix, del, add, reset);
print_submodule_summary(&rev, o);
out:
if (merge_bases)
@ -637,21 +624,18 @@ out:
clear_commit_marks(right, ~0);
}
void show_submodule_inline_diff(FILE *f, const char *path,
const char *line_prefix,
void show_submodule_inline_diff(struct diff_options *o, const char *path,
struct object_id *one, struct object_id *two,
unsigned dirty_submodule, const char *meta,
const char *del, const char *add, const char *reset,
const struct diff_options *o)
unsigned dirty_submodule)
{
const struct object_id *old = &empty_tree_oid, *new = &empty_tree_oid;
struct commit *left = NULL, *right = NULL;
struct commit_list *merge_bases = NULL;
struct strbuf submodule_dir = STRBUF_INIT;
struct child_process cp = CHILD_PROCESS_INIT;
struct strbuf sb = STRBUF_INIT;
show_submodule_header(f, path, line_prefix, one, two, dirty_submodule,
meta, reset, &left, &right, &merge_bases);
show_submodule_header(o, path, one, two, dirty_submodule,
&left, &right, &merge_bases);
/* We need a valid left and right commit to display a difference */
if (!(left || is_null_oid(one)) ||
@ -663,16 +647,16 @@ void show_submodule_inline_diff(FILE *f, const char *path,
if (right)
new = two;
fflush(f);
cp.git_cmd = 1;
cp.dir = path;
cp.out = dup(fileno(f));
cp.out = -1;
cp.no_stdin = 1;
/* TODO: other options may need to be passed here. */
argv_array_pushl(&cp.args, "diff", "--submodule=diff", NULL);
argv_array_pushf(&cp.args, "--color=%s", want_color(o->use_color) ?
"always" : "never");
argv_array_pushf(&cp.args, "--line-prefix=%s", line_prefix);
if (DIFF_OPT_TST(o, REVERSE_DIFF)) {
argv_array_pushf(&cp.args, "--src-prefix=%s%s/",
o->b_prefix, path);
@ -695,11 +679,17 @@ void show_submodule_inline_diff(FILE *f, const char *path,
argv_array_push(&cp.args, oid_to_hex(new));
prepare_submodule_repo_env(&cp.env_array);
if (run_command(&cp))
fprintf(f, "(diff failed)\n");
if (start_command(&cp))
diff_emit_submodule_error(o, "(diff failed)\n");
while (strbuf_getwholeline_fd(&sb, cp.out, '\n') != EOF)
diff_emit_submodule_pipethrough(o, sb.buf, sb.len);
if (finish_command(&cp))
diff_emit_submodule_error(o, "(diff failed)\n");
done:
strbuf_release(&submodule_dir);
strbuf_release(&sb);
if (merge_bases)
free_commit_list(merge_bases);
if (left)

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@ -66,17 +66,12 @@ extern int parse_submodule_update_strategy(const char *value,
struct submodule_update_strategy *dst);
extern const char *submodule_strategy_to_string(const struct submodule_update_strategy *s);
extern void handle_ignore_submodules_arg(struct diff_options *, const char *);
extern void show_submodule_summary(FILE *f, const char *path,
const char *line_prefix,
extern void show_submodule_summary(struct diff_options *o, const char *path,
struct object_id *one, struct object_id *two,
unsigned dirty_submodule, const char *meta,
const char *del, const char *add, const char *reset);
extern void show_submodule_inline_diff(FILE *f, const char *path,
const char *line_prefix,
unsigned dirty_submodule);
extern void show_submodule_inline_diff(struct diff_options *o, const char *path,
struct object_id *one, struct object_id *two,
unsigned dirty_submodule, const char *meta,
const char *del, const char *add, const char *reset,
const struct diff_options *opt);
unsigned dirty_submodule);
/* Check if we want to update any submodule.*/
extern int should_update_submodules(void);
/*

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@ -972,4 +972,438 @@ test_expect_success 'option overrides diff.wsErrorHighlight' '
'
test_expect_success 'detect moved code, complete file' '
git reset --hard &&
cat <<-\EOF >test.c &&
#include<stdio.h>
main()
{
printf("Hello World");
}
EOF
git add test.c &&
git commit -m "add main function" &&
git mv test.c main.c &&
test_config color.diff.oldMoved "normal red" &&
test_config color.diff.newMoved "normal green" &&
git diff HEAD --color-moved=zebra --no-renames | test_decode_color >actual &&
cat >expected <<-\EOF &&
<BOLD>diff --git a/main.c b/main.c<RESET>
<BOLD>new file mode 100644<RESET>
<BOLD>index 0000000..a986c57<RESET>
<BOLD>--- /dev/null<RESET>
<BOLD>+++ b/main.c<RESET>
<CYAN>@@ -0,0 +1,5 @@<RESET>
<BGREEN>+<RESET><BGREEN>#include<stdio.h><RESET>
<BGREEN>+<RESET><BGREEN>main()<RESET>
<BGREEN>+<RESET><BGREEN>{<RESET>
<BGREEN>+<RESET><BGREEN>printf("Hello World");<RESET>
<BGREEN>+<RESET><BGREEN>}<RESET>
<BOLD>diff --git a/test.c b/test.c<RESET>
<BOLD>deleted file mode 100644<RESET>
<BOLD>index a986c57..0000000<RESET>
<BOLD>--- a/test.c<RESET>
<BOLD>+++ /dev/null<RESET>
<CYAN>@@ -1,5 +0,0 @@<RESET>
<BRED>-#include<stdio.h><RESET>
<BRED>-main()<RESET>
<BRED>-{<RESET>
<BRED>-printf("Hello World");<RESET>
<BRED>-}<RESET>
EOF
test_cmp expected actual
'
test_expect_success 'detect malicious moved code, inside file' '
test_config color.diff.oldMoved "normal red" &&
test_config color.diff.newMoved "normal green" &&
test_config color.diff.oldMovedAlternative "blue" &&
test_config color.diff.newMovedAlternative "yellow" &&
git reset --hard &&
cat <<-\EOF >main.c &&
#include<stdio.h>
int stuff()
{
printf("Hello ");
printf("World\n");
}
int secure_foo(struct user *u)
{
if (!u->is_allowed_foo)
return;
foo(u);
}
int main()
{
foo();
}
EOF
cat <<-\EOF >test.c &&
#include<stdio.h>
int bar()
{
printf("Hello World, but different\n");
}
int another_function()
{
bar();
}
EOF
git add main.c test.c &&
git commit -m "add main and test file" &&
cat <<-\EOF >main.c &&
#include<stdio.h>
int stuff()
{
printf("Hello ");
printf("World\n");
}
int main()
{
foo();
}
EOF
cat <<-\EOF >test.c &&
#include<stdio.h>
int bar()
{
printf("Hello World, but different\n");
}
int secure_foo(struct user *u)
{
foo(u);
if (!u->is_allowed_foo)
return;
}
int another_function()
{
bar();
}
EOF
git diff HEAD --no-renames --color-moved=zebra| test_decode_color >actual &&
cat <<-\EOF >expected &&
<BOLD>diff --git a/main.c b/main.c<RESET>
<BOLD>index 27a619c..7cf9336 100644<RESET>
<BOLD>--- a/main.c<RESET>
<BOLD>+++ b/main.c<RESET>
<CYAN>@@ -5,13 +5,6 @@<RESET> <RESET>printf("Hello ");<RESET>
printf("World\n");<RESET>
}<RESET>
<RESET>
<BRED>-int secure_foo(struct user *u)<RESET>
<BRED>-{<RESET>
<BLUE>-if (!u->is_allowed_foo)<RESET>
<BLUE>-return;<RESET>
<BRED>-foo(u);<RESET>
<BLUE>-}<RESET>
<BLUE>-<RESET>
int main()<RESET>
{<RESET>
foo();<RESET>
<BOLD>diff --git a/test.c b/test.c<RESET>
<BOLD>index 1dc1d85..2bedec9 100644<RESET>
<BOLD>--- a/test.c<RESET>
<BOLD>+++ b/test.c<RESET>
<CYAN>@@ -4,6 +4,13 @@<RESET> <RESET>int bar()<RESET>
printf("Hello World, but different\n");<RESET>
}<RESET>
<RESET>
<BGREEN>+<RESET><BGREEN>int secure_foo(struct user *u)<RESET>
<BGREEN>+<RESET><BGREEN>{<RESET>
<YELLOW>+<RESET><YELLOW>foo(u);<RESET>
<BGREEN>+<RESET><BGREEN>if (!u->is_allowed_foo)<RESET>
<BGREEN>+<RESET><BGREEN>return;<RESET>
<YELLOW>+<RESET><YELLOW>}<RESET>
<YELLOW>+<RESET>
int another_function()<RESET>
{<RESET>
bar();<RESET>
EOF
test_cmp expected actual
'
test_expect_success 'plain moved code, inside file' '
test_config color.diff.oldMoved "normal red" &&
test_config color.diff.newMoved "normal green" &&
test_config color.diff.oldMovedAlternative "blue" &&
test_config color.diff.newMovedAlternative "yellow" &&
# needs previous test as setup
git diff HEAD --no-renames --color-moved=plain| test_decode_color >actual &&
cat <<-\EOF >expected &&
<BOLD>diff --git a/main.c b/main.c<RESET>
<BOLD>index 27a619c..7cf9336 100644<RESET>
<BOLD>--- a/main.c<RESET>
<BOLD>+++ b/main.c<RESET>
<CYAN>@@ -5,13 +5,6 @@<RESET> <RESET>printf("Hello ");<RESET>
printf("World\n");<RESET>
}<RESET>
<RESET>
<BRED>-int secure_foo(struct user *u)<RESET>
<BRED>-{<RESET>
<BRED>-if (!u->is_allowed_foo)<RESET>
<BRED>-return;<RESET>
<BRED>-foo(u);<RESET>
<BRED>-}<RESET>
<BRED>-<RESET>
int main()<RESET>
{<RESET>
foo();<RESET>
<BOLD>diff --git a/test.c b/test.c<RESET>
<BOLD>index 1dc1d85..2bedec9 100644<RESET>
<BOLD>--- a/test.c<RESET>
<BOLD>+++ b/test.c<RESET>
<CYAN>@@ -4,6 +4,13 @@<RESET> <RESET>int bar()<RESET>
printf("Hello World, but different\n");<RESET>
}<RESET>
<RESET>
<BGREEN>+<RESET><BGREEN>int secure_foo(struct user *u)<RESET>
<BGREEN>+<RESET><BGREEN>{<RESET>
<BGREEN>+<RESET><BGREEN>foo(u);<RESET>
<BGREEN>+<RESET><BGREEN>if (!u->is_allowed_foo)<RESET>
<BGREEN>+<RESET><BGREEN>return;<RESET>
<BGREEN>+<RESET><BGREEN>}<RESET>
<BGREEN>+<RESET>
int another_function()<RESET>
{<RESET>
bar();<RESET>
EOF
test_cmp expected actual
'
test_expect_success 'detect permutations inside moved code -- dimmed_zebra' '
git reset --hard &&
cat <<-\EOF >lines.txt &&
line 1
line 2
line 3
line 4
line 5
line 6
line 7
line 8
line 9
line 10
line 11
line 12
line 13
line 14
line 15
line 16
EOF
git add lines.txt &&
git commit -m "add poetry" &&
cat <<-\EOF >lines.txt &&
line 4
line 5
line 6
line 7
line 8
line 9
line 1
line 2
line 3
line 14
line 15
line 16
line 10
line 11
line 12
line 13
EOF
test_config color.diff.oldMoved "magenta" &&
test_config color.diff.newMoved "cyan" &&
test_config color.diff.oldMovedAlternative "blue" &&
test_config color.diff.newMovedAlternative "yellow" &&
test_config color.diff.oldMovedDimmed "normal magenta" &&
test_config color.diff.newMovedDimmed "normal cyan" &&
test_config color.diff.oldMovedAlternativeDimmed "normal blue" &&
test_config color.diff.newMovedAlternativeDimmed "normal yellow" &&
git diff HEAD --no-renames --color-moved=dimmed_zebra| test_decode_color >actual &&
cat <<-\EOF >expected &&
<BOLD>diff --git a/lines.txt b/lines.txt<RESET>
<BOLD>index 47ea9c3..ba96a38 100644<RESET>
<BOLD>--- a/lines.txt<RESET>
<BOLD>+++ b/lines.txt<RESET>
<CYAN>@@ -1,16 +1,16 @@<RESET>
<BMAGENTA>-line 1<RESET>
<BMAGENTA>-line 2<RESET>
<BMAGENTA>-line 3<RESET>
line 4<RESET>
line 5<RESET>
line 6<RESET>
line 7<RESET>
line 8<RESET>
line 9<RESET>
<BCYAN>+<RESET><BCYAN>line 1<RESET>
<BCYAN>+<RESET><BCYAN>line 2<RESET>
<CYAN>+<RESET><CYAN>line 3<RESET>
<YELLOW>+<RESET><YELLOW>line 14<RESET>
<BYELLOW>+<RESET><BYELLOW>line 15<RESET>
<BYELLOW>+<RESET><BYELLOW>line 16<RESET>
line 10<RESET>
line 11<RESET>
line 12<RESET>
line 13<RESET>
<BMAGENTA>-line 14<RESET>
<BMAGENTA>-line 15<RESET>
<BMAGENTA>-line 16<RESET>
EOF
test_cmp expected actual
'
test_expect_success 'cmd option assumes configured colored-moved' '
test_config color.diff.oldMoved "magenta" &&
test_config color.diff.newMoved "cyan" &&
test_config color.diff.oldMovedAlternative "blue" &&
test_config color.diff.newMovedAlternative "yellow" &&
test_config color.diff.oldMovedDimmed "normal magenta" &&
test_config color.diff.newMovedDimmed "normal cyan" &&
test_config color.diff.oldMovedAlternativeDimmed "normal blue" &&
test_config color.diff.newMovedAlternativeDimmed "normal yellow" &&
test_config diff.colorMoved zebra &&
git diff HEAD --no-renames --color-moved| test_decode_color >actual &&
cat <<-\EOF >expected &&
<BOLD>diff --git a/lines.txt b/lines.txt<RESET>
<BOLD>index 47ea9c3..ba96a38 100644<RESET>
<BOLD>--- a/lines.txt<RESET>
<BOLD>+++ b/lines.txt<RESET>
<CYAN>@@ -1,16 +1,16 @@<RESET>
<MAGENTA>-line 1<RESET>
<MAGENTA>-line 2<RESET>
<MAGENTA>-line 3<RESET>
line 4<RESET>
line 5<RESET>
line 6<RESET>
line 7<RESET>
line 8<RESET>
line 9<RESET>
<CYAN>+<RESET><CYAN>line 1<RESET>
<CYAN>+<RESET><CYAN>line 2<RESET>
<CYAN>+<RESET><CYAN>line 3<RESET>
<YELLOW>+<RESET><YELLOW>line 14<RESET>
<YELLOW>+<RESET><YELLOW>line 15<RESET>
<YELLOW>+<RESET><YELLOW>line 16<RESET>
line 10<RESET>
line 11<RESET>
line 12<RESET>
line 13<RESET>
<MAGENTA>-line 14<RESET>
<MAGENTA>-line 15<RESET>
<MAGENTA>-line 16<RESET>
EOF
test_cmp expected actual
'
test_expect_success 'no effect from --color-moved with --word-diff' '
cat <<-\EOF >text.txt &&
Lorem Ipsum is simply dummy text of the printing and typesetting industry.
EOF
git add text.txt &&
git commit -a -m "clean state" &&
cat <<-\EOF >text.txt &&
simply Lorem Ipsum dummy is text of the typesetting and printing industry.
EOF
git diff --color-moved --word-diff >actual &&
git diff --word-diff >expect &&
test_cmp expect actual
'
test_expect_success 'move detection ignoring whitespace ' '
git reset --hard &&
cat <<\EOF >lines.txt &&
line 1
line 2
line 3
line 4
line 5
line 6
line 7
EOF
git add lines.txt &&
git commit -m "add poetry" &&
cat <<\EOF >lines.txt &&
line 5
line 6
line 7
line 1
line 2
line 3
line 4
EOF
test_config color.diff.oldMoved "magenta" &&
test_config color.diff.newMoved "cyan" &&
git diff HEAD --no-renames --color-moved| test_decode_color >actual &&
cat <<-\EOF >expected &&
<BOLD>diff --git a/lines.txt b/lines.txt<RESET>
<BOLD>index 734156d..eb89ead 100644<RESET>
<BOLD>--- a/lines.txt<RESET>
<BOLD>+++ b/lines.txt<RESET>
<CYAN>@@ -1,7 +1,7 @@<RESET>
<GREEN>+<RESET> <GREEN>line 5<RESET>
<GREEN>+<RESET> <GREEN>line 6<RESET>
<GREEN>+<RESET> <GREEN>line 7<RESET>
line 1<RESET>
line 2<RESET>
line 3<RESET>
line 4<RESET>
<RED>-line 5<RESET>
<RED>-line 6<RESET>
<RED>-line 7<RESET>
EOF
test_cmp expected actual &&
git diff HEAD --no-renames -w --color-moved| test_decode_color >actual &&
cat <<-\EOF >expected &&
<BOLD>diff --git a/lines.txt b/lines.txt<RESET>
<BOLD>index 734156d..eb89ead 100644<RESET>
<BOLD>--- a/lines.txt<RESET>
<BOLD>+++ b/lines.txt<RESET>
<CYAN>@@ -1,7 +1,7 @@<RESET>
<CYAN>+<RESET> <CYAN>line 5<RESET>
<CYAN>+<RESET> <CYAN>line 6<RESET>
<CYAN>+<RESET> <CYAN>line 7<RESET>
line 1<RESET>
line 2<RESET>
line 3<RESET>
line 4<RESET>
<MAGENTA>-line 5<RESET>
<MAGENTA>-line 6<RESET>
<MAGENTA>-line 7<RESET>
EOF
test_cmp expected actual
'
test_expect_success 'move detection with submodules' '
test_create_repo bananas &&
echo ripe >bananas/recipe &&
git -C bananas add recipe &&
test_commit fruit &&
test_commit -C bananas recipe &&
git submodule add ./bananas &&
git add bananas &&
git commit -a -m "bananas are like a heavy library?" &&
echo foul >bananas/recipe &&
echo ripe >fruit.t &&
git diff --submodule=diff --color-moved >actual &&
# no move detection as the moved line is across repository boundaries.
test_decode_color <actual >decoded_actual &&
! grep BGREEN decoded_actual &&
! grep BRED decoded_actual &&
# nor did we mess with it another way
git diff --submodule=diff | test_decode_color >expect &&
test_cmp expect decoded_actual
'
test_done