When the local convention of the project is to use tab width that is
not 8, it may make sense to allow "git log --expand-tabs=<n>" to
tweak the output to match it.
Signed-off-by: Junio C Hamano <gitster@xxxxxxxxx>
---
Documentation/pretty-options.txt | 9 ++++++---
commit.h | 2 +-
pretty.c | 15 ++++++++-------
revision.c | 9 +++++++--
4 files changed, 22 insertions(+), 13 deletions(-)
diff --git a/Documentation/pretty-options.txt b/Documentation/pretty-options.txt
index edbb02f..93ad1cd 100644
--- a/Documentation/pretty-options.txt
+++ b/Documentation/pretty-options.txt
@@ -42,16 +42,19 @@ people using 80-column terminals.
verbatim; this means that invalid sequences in the original
commit may be copied to the output.
+--expand-tabs=<n>::
--expand-tabs::
--no-expand-tabs::
Perform a tab expansion (replace each tab with enough spaces
- to fill to the next display column that is multiple of 8)
+ to fill to the next display column that is multiple of '<n>')
in the log message before showing it in the output.
+ `--expand-tabs` is a short-hand for `--expand-tabs=8`, and
+ `--no-expand-tabs` is a short-hand for `--expand-tabs=0`,
+ which disables tab expansion.
+
By default, tabs are expanded in pretty formats that indent the log
message by 4 spaces (i.e. 'medium', which is the default, 'full',
-and 'fuller'). `--no-expand-tabs` option can be used to disable
-this.
+and 'fuller').
ifndef::git-rev-list[]
--notes[=<ref>]::
diff --git a/commit.h b/commit.h
index a7ef682..b06db4d 100644
--- a/commit.h
+++ b/commit.h
@@ -147,7 +147,7 @@ struct pretty_print_context {
int preserve_subject;
struct date_mode date_mode;
unsigned date_mode_explicit:1;
- unsigned expand_tabs_in_log:1;
+ int expand_tabs_in_log;
int need_8bit_cte;
char *notes_message;
struct reflog_walk_info *reflog_info;
diff --git a/pretty.c b/pretty.c
index b7938e0..87c4497 100644
--- a/pretty.c
+++ b/pretty.c
@@ -89,11 +89,11 @@ static void setup_commit_formats(void)
{
struct cmt_fmt_map builtin_formats[] = {
{ "raw", CMIT_FMT_RAW, 0, 0 },
- { "medium", CMIT_FMT_MEDIUM, 0, 1 },
+ { "medium", CMIT_FMT_MEDIUM, 0, 8 },
{ "short", CMIT_FMT_SHORT, 0, 0 },
{ "email", CMIT_FMT_EMAIL, 0, 0 },
- { "fuller", CMIT_FMT_FULLER, 0, 1 },
- { "full", CMIT_FMT_FULL, 0, 1 },
+ { "fuller", CMIT_FMT_FULLER, 0, 8 },
+ { "full", CMIT_FMT_FULL, 0, 8 },
{ "oneline", CMIT_FMT_ONELINE, 1, 0 }
};
commit_formats_len = ARRAY_SIZE(builtin_formats);
@@ -1645,7 +1645,7 @@ static int pp_utf8_width(const char *start, const char *end)
return width;
}
-static void strbuf_add_tabexpand(struct strbuf *sb,
+static void strbuf_add_tabexpand(struct strbuf *sb, int tabwidth,
const char *line, int linelen)
{
const char *tab;
@@ -1666,7 +1666,7 @@ static void strbuf_add_tabexpand(struct strbuf *sb,
strbuf_add(sb, line, tab - line);
/* .. and the de-tabified tab */
- strbuf_addchars(sb, ' ', 8 - (width % 8));
+ strbuf_addchars(sb, ' ', tabwidth - (width % tabwidth));
/* Skip over the printed part .. */
linelen -= tab + 1 - line;
@@ -1692,7 +1692,7 @@ static void pp_handle_indent(struct pretty_print_context *pp,
{
strbuf_addchars(sb, ' ', indent);
if (pp->expand_tabs_in_log)
- strbuf_add_tabexpand(sb, line, linelen);
+ strbuf_add_tabexpand(sb, pp->expand_tabs_in_log, line, linelen);
else
strbuf_add(sb, line, linelen);
}
@@ -1723,7 +1723,8 @@ void pp_remainder(struct pretty_print_context *pp,
if (indent)
pp_handle_indent(pp, sb, indent, line, linelen);
else if (pp->expand_tabs_in_log)
- strbuf_add_tabexpand(sb, line, linelen);
+ strbuf_add_tabexpand(sb, pp->expand_tabs_in_log,
+ line, linelen);
else
strbuf_add(sb, line, linelen);
strbuf_addch(sb, '\n');
diff --git a/revision.c b/revision.c
index da53b6c..47e9ee7 100644
--- a/revision.c
+++ b/revision.c
@@ -1415,7 +1415,7 @@ void init_revisions(struct rev_info *revs, const char *prefix)
revs->expand_tabs_in_log = -1;
revs->commit_format = CMIT_FMT_DEFAULT;
- revs->expand_tabs_in_log_default = 1;
+ revs->expand_tabs_in_log_default = 8;
init_grep_defaults();
grep_init(&revs->grep_filter, prefix);
@@ -1918,9 +1918,14 @@ static int handle_revision_opt(struct rev_info *revs, int argc, const char **arg
revs->pretty_given = 1;
get_commit_format(arg+9, revs);
} else if (!strcmp(arg, "--expand-tabs")) {
- revs->expand_tabs_in_log = 1;
+ revs->expand_tabs_in_log = 8;
} else if (!strcmp(arg, "--no-expand-tabs")) {
revs->expand_tabs_in_log = 0;
+ } else if (skip_prefix(arg, "--expand-tabs=", &arg)) {
+ int val;
+ if (strtol_i(arg, 10, &val) < 0 || val < 0)
+ die("'%s': not a non-negative integer", arg);
+ revs->expand_tabs_in_log = val;
} else if (!strcmp(arg, "--show-notes") || !strcmp(arg, "--notes")) {
revs->show_notes = 1;
revs->show_notes_given = 1;
--
2.8.1-251-g9997610
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