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authorChristian Couder <christian.couder@gmail.com>2020-07-16 14:19:40 +0200
committerJunio C Hamano <gitster@pobox.com>2020-07-16 10:46:55 -0700
commitb6839fda6809b1de8d528837dfc99d0837f77c9d (patch)
treed5976950efb3a324cb8a47c670ea829fea75ed60 /ref-filter.c
parent6e2ef8eb06456e288a0a3cc451134479173cebc5 (diff)
downloadgit-b6839fda6809b1de8d528837dfc99d0837f77c9d.tar.gz
ref-filter: add support for %(contents:size)
It's useful and efficient to be able to get the size of the contents directly without having to pipe through `wc -c`. Also the result of the following: `git for-each-ref --format='%(contents)' refs/heads/my-branch | wc -c` is off by one as `git for-each-ref` appends a newline character after the contents, which can be seen by comparing its output with the output from `git cat-file`. As with %(contents), %(contents:size) is silently ignored, if a ref points to something other than a commit or a tag: ``` $ git update-ref refs/mytrees/first HEAD^{tree} $ git for-each-ref --format='%(contents)' refs/mytrees/first $ git for-each-ref --format='%(contents:size)' refs/mytrees/first ``` Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'ref-filter.c')
-rw-r--r--ref-filter.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/ref-filter.c b/ref-filter.c
index 8447cb09be..73d8bfa86d 100644
--- a/ref-filter.c
+++ b/ref-filter.c
@@ -127,7 +127,8 @@ static struct used_atom {
unsigned int nobracket : 1, push : 1, push_remote : 1;
} remote_ref;
struct {
- enum { C_BARE, C_BODY, C_BODY_DEP, C_LINES, C_SIG, C_SUB, C_TRAILERS } option;
+ enum { C_BARE, C_BODY, C_BODY_DEP, C_LENGTH,
+ C_LINES, C_SIG, C_SUB, C_TRAILERS } option;
struct process_trailer_options trailer_opts;
unsigned int nlines;
} contents;
@@ -338,6 +339,8 @@ static int contents_atom_parser(const struct ref_format *format, struct used_ato
atom->u.contents.option = C_BARE;
else if (!strcmp(arg, "body"))
atom->u.contents.option = C_BODY;
+ else if (!strcmp(arg, "size"))
+ atom->u.contents.option = C_LENGTH;
else if (!strcmp(arg, "signature"))
atom->u.contents.option = C_SIG;
else if (!strcmp(arg, "subject"))
@@ -1253,6 +1256,8 @@ static void grab_sub_body_contents(struct atom_value *val, int deref, void *buf)
v->s = copy_subject(subpos, sublen);
else if (atom->u.contents.option == C_BODY_DEP)
v->s = xmemdupz(bodypos, bodylen);
+ else if (atom->u.contents.option == C_LENGTH)
+ v->s = xstrfmt("%"PRIuMAX, (uintmax_t)strlen(subpos));
else if (atom->u.contents.option == C_BODY)
v->s = xmemdupz(bodypos, nonsiglen);
else if (atom->u.contents.option == C_SIG)