From: Ramkumar Ramachandra <artagnon@gmail.com>
To: Git List <git@vger.kernel.org>
Cc: "Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>,
"Junio C Hamano" <gitster@pobox.com>
Subject: [PATCH 10/15] for-each-ref: introduce format specifier %>(*) and %<(*)
Date: Tue, 4 Jun 2013 18:05:32 +0530 [thread overview]
Message-ID: <1370349337-20938-11-git-send-email-artagnon@gmail.com> (raw)
In-Reply-To: <1370349337-20938-1-git-send-email-artagnon@gmail.com>
From: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Pretty placeholders %>(N) and %<(N) require a user provided width N,
which makes sense because the commit chain could be really long and the
user only needs to look at a few at the top, going to the end just to
calculate the best width wastes CPU cycles.
for-each-ref is different; the display set is small, and we display them
all at once. We even support sorting, which goes through all display
items anyway. This patch introduces new %>(*) and %<(*), which are
supposed to be followed immediately by %(fieldname) (i.e. original
for-each-ref specifiers, not ones coming from pretty.c). They calculate
the best width for the %(fieldname), ignoring ansi escape sequences if
any.
[rr: documentation]
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
---
Documentation/git-for-each-ref.txt | 7 +++++++
builtin/for-each-ref.c | 38 ++++++++++++++++++++++++++++++++++++++
2 files changed, 45 insertions(+)
diff --git a/Documentation/git-for-each-ref.txt b/Documentation/git-for-each-ref.txt
index 6135812..7d6db7f 100644
--- a/Documentation/git-for-each-ref.txt
+++ b/Documentation/git-for-each-ref.txt
@@ -47,6 +47,10 @@ OPTIONS
are hex digits interpolates to character with hex code
`xx`; for example `%00` interpolates to `\0` (NUL),
`%09` to `\t` (TAB) and `%0a` to `\n` (LF).
++
+Placeholders `%<(*)` and `%>(*)` work like `%<(<N>)` and `%>(<N>)`
+respectively, except that the width of the next placeholder is
+calculated.
<pretty>::
A format string with supporting placeholders described in the
@@ -67,6 +71,9 @@ Caveats:
3. Only the placeholders inherited from `<format>` will respect
quoting settings.
+3. Only the placeholders inherited from `<format>` will work with the
+ alignment placeholders `%<(*)` and '%>(*)`.
+
<pattern>...::
If one or more patterns are given, only refs are shown that
match against at least one pattern, either using fnmatch(3) or
diff --git a/builtin/for-each-ref.c b/builtin/for-each-ref.c
index f8a3880..053a622 100644
--- a/builtin/for-each-ref.c
+++ b/builtin/for-each-ref.c
@@ -9,6 +9,7 @@
#include "quote.h"
#include "parse-options.h"
#include "remote.h"
+#include "utf8.h"
/* Quoting styles */
#define QUOTE_NONE 0
@@ -966,10 +967,30 @@ static void show_refs(struct refinfo **refs, int maxcount,
}
struct format_one_atom_context {
+ struct refinfo **refs;
+ int maxcount;
+
struct refinfo *info;
int quote_style;
};
+static unsigned int get_atom_width(struct format_one_atom_context *ctx,
+ const char *start, const char *end)
+{
+ struct strbuf sb = STRBUF_INIT;
+ int i, atom = parse_atom(start, end);
+ unsigned int len = 0, sb_len;
+ for (i = 0; i < ctx->maxcount; i++) {
+ print_value(&sb, ctx->refs[i], atom, ctx->quote_style);
+ sb_len = utf8_strnwidth(sb.buf, sb.len, 1);
+ if (sb_len > len)
+ len = sb_len;
+ strbuf_reset(&sb);
+ }
+ strbuf_release(&sb);
+ return len;
+}
+
static size_t format_one_atom(struct strbuf *sb, const char *placeholder,
void *format_context, void *user_data,
struct strbuf *subst)
@@ -982,6 +1003,21 @@ static size_t format_one_atom(struct strbuf *sb, const char *placeholder,
return 1;
}
+ /*
+ * Substitute %>(*)%(atom) and friends with real width.
+ */
+ if (*placeholder == '>' || *placeholder == '<') {
+ const char *star = placeholder + 1;
+ if (!prefixcmp(star, "(*)%(") &&
+ ((ep = strchr(star + strlen("(*)%("), ')')) != NULL)) {
+ star++;
+ strbuf_addf(subst, "%c(%u)",
+ *placeholder,
+ get_atom_width(ctx, star + strlen("*)%("), ep));
+ return 1 + strlen("(*)");
+ }
+ }
+
if (*placeholder != '(')
return 0;
@@ -1003,6 +1039,8 @@ static void show_pretty_refs(struct refinfo **refs, int maxcount,
ctx.format = format_one_atom;
ctx.user_data = &fctx;
+ fctx.refs = refs;
+ fctx.maxcount = maxcount;
fctx.quote_style = quote_style;
for (i = 0; i < maxcount; i++) {
struct commit *commit = NULL;
--
1.8.3.GIT
next prev parent reply other threads:[~2013-06-04 12:34 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-04 12:35 [PATCH 00/15] Towards a more awesome git-branch Ramkumar Ramachandra
2013-06-04 12:35 ` [PATCH 01/15] for-each-ref, quote: convert *_quote_print -> *_quote_buf Ramkumar Ramachandra
2013-06-04 12:35 ` [PATCH 02/15] for-each-ref: don't print out elements directly Ramkumar Ramachandra
2013-06-04 23:13 ` Junio C Hamano
2013-06-04 23:44 ` Duy Nguyen
2013-06-04 12:35 ` [PATCH 03/15] tar-tree: remove dependency on sq_quote_print() Ramkumar Ramachandra
2013-06-04 12:35 ` [PATCH 04/15] quote: remove sq_quote_print() Ramkumar Ramachandra
2013-06-04 12:35 ` [PATCH 05/15] pretty: extend pretty_print_context with callback Ramkumar Ramachandra
2013-06-04 12:35 ` [PATCH 06/15] pretty: limit recursion in format_commit_one() Ramkumar Ramachandra
2013-06-04 12:35 ` [PATCH 07/15] pretty: allow passing NULL commit to format_commit_message() Ramkumar Ramachandra
2013-06-04 12:35 ` [PATCH 08/15] for-each-ref: get --pretty using format_commit_message Ramkumar Ramachandra
2013-06-04 21:12 ` Eric Sunshine
2013-06-05 13:21 ` Duy Nguyen
2013-06-05 17:09 ` Junio C Hamano
2013-06-06 0:07 ` Duy Nguyen
2013-06-04 12:35 ` [PATCH 09/15] for-each-ref: teach verify_format() about pretty's syntax Ramkumar Ramachandra
2013-06-04 12:35 ` Ramkumar Ramachandra [this message]
2013-06-04 12:54 ` [PATCH 10/15] for-each-ref: introduce format specifier %>(*) and %<(*) Duy Nguyen
2013-06-05 8:14 ` Ramkumar Ramachandra
2013-06-05 10:15 ` Duy Nguyen
2013-06-04 12:35 ` [PATCH 11/15] for-each-ref: introduce %(HEAD) marker Ramkumar Ramachandra
2013-06-04 12:35 ` [PATCH 12/15] for-each-ref: introduce %(upstream:track[short]) Ramkumar Ramachandra
2013-06-04 21:14 ` Eric Sunshine
2013-06-04 12:35 ` [PATCH 13/15] for-each-ref: improve responsiveness of %(upstream:track) Ramkumar Ramachandra
2013-06-04 12:35 ` [PATCH 14/15] pretty: introduce get_pretty_userformat Ramkumar Ramachandra
2013-06-04 12:35 ` [PATCH 15/15] for-each-ref: use get_pretty_userformat in --pretty Ramkumar Ramachandra
2013-06-04 12:57 ` Duy Nguyen
2013-06-04 21:15 ` Eric Sunshine
2013-06-04 12:49 ` [PATCH 00/15] Towards a more awesome git-branch Duy Nguyen
2013-06-05 8:11 ` Ramkumar Ramachandra
-- strict thread matches above, loose matches on Subject: below --
2013-07-09 10:32 [RESEND][PATCH 00/15] Towards a more awesome git branch Ramkumar Ramachandra
2013-07-09 10:32 ` [PATCH 10/15] for-each-ref: introduce format specifier %>(*) and %<(*) Ramkumar Ramachandra
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