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Subject[PATCH v3] scripts/dtc: dtx_diff - add color output support
Date
Add new -c/--color options, to enhance the diff output with color, and
improve the user's experience.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Frank Rowand <frank.rowand@sony.com>
Tested-by: Frank Rowand <frank.rowand@sony.com>
---
v3:
- Add Reviewed-by, Tested-by,

v2:
- Document that -c/--color requires a diff command with color support,
- Ignore -c/--color if diff command lacks color support.
---
scripts/dtc/dtx_diff | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/scripts/dtc/dtx_diff b/scripts/dtc/dtx_diff
index e9ad7834a22d9459..d3422ee15e300bc7 100755
--- a/scripts/dtc/dtx_diff
+++ b/scripts/dtc/dtx_diff
@@ -20,6 +20,8 @@ Usage:


--annotate synonym for -T
+ --color synonym for -c (requires diff with --color support)
+ -c enable colored output
-f print full dts in diff (--unified=99999)
-h synonym for --help
-help synonym for --help
@@ -178,6 +180,7 @@ compile_to_dts() {
annotate=""
cmd_diff=0
diff_flags="-u"
+diff_color=""
dtx_file_1=""
dtx_file_2=""
dtc_sort="-s"
@@ -189,6 +192,13 @@ while [ $# -gt 0 ] ; do

case $1 in

+ -c | --color )
+ if diff --color /dev/null /dev/null 2>/dev/null ; then
+ diff_color="--color=always"
+ fi
+ shift
+ ;;
+
-f )
diff_flags="--unified=999999"
shift
@@ -344,7 +354,7 @@ DTC="\

if (( ${cmd_diff} )) ; then

- diff ${diff_flags} --label "${dtx_file_1}" --label "${dtx_file_2}" \
+ diff ${diff_flags} ${diff_color} --label "${dtx_file_1}" --label "${dtx_file_2}" \
<(compile_to_dts "${dtx_file_1}" "${dtx_path_1_dtc_include}") \
<(compile_to_dts "${dtx_file_2}" "${dtx_path_2_dtc_include}")

--
2.17.1
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