Like the callsites in the previous commit, logmsg_reencode
already falls back to read_sha1_file when necessary.
However, I split its conversion out into its own commit
because it's a bit more complex.
We return either:
1. The original commit->buffer
2. A newly allocated buffer from read_sha1_file
3. A reencoded buffer (based on either 1 or 2 above).
while trying to do as few extra reads/allocations as
possible. Callers currently free the result with
logmsg_free, but we can simplify this by pointing them
straight to unuse_commit_buffer. This is a slight layering
violation, in that we may be passing a buffer from (3).
However, since the end result is to free() anything except
(1), which is unlikely to change, and because this makes the
interface much simpler, it's a reasonable bending of the
rules.
Signed-off-by: Jeff King <peff@xxxxxxxx>
---
builtin/blame.c | 4 ++--
builtin/reset.c | 2 +-
commit.h | 1 -
pretty.c | 40 +++++++++++-----------------------------
revision.c | 2 +-
sequencer.c | 2 +-
6 files changed, 16 insertions(+), 35 deletions(-)
diff --git a/builtin/blame.c b/builtin/blame.c
index 0af3a18..cde19eb 100644
--- a/builtin/blame.c
+++ b/builtin/blame.c
@@ -1666,7 +1666,7 @@ static void get_commit_info(struct commit *commit,
&ret->author_time, &ret->author_tz);
if (!detailed) {
- logmsg_free(message, commit);
+ unuse_commit_buffer(commit, message);
return;
}
@@ -1680,7 +1680,7 @@ static void get_commit_info(struct commit *commit,
else
strbuf_addf(&ret->summary, "(%s)", sha1_to_hex(commit->object.sha1));
- logmsg_free(message, commit);
+ unuse_commit_buffer(commit, message);
}
/*
diff --git a/builtin/reset.c b/builtin/reset.c
index 7ebee07..850d532 100644
--- a/builtin/reset.c
+++ b/builtin/reset.c
@@ -109,7 +109,7 @@ static void print_new_head_line(struct commit *commit)
}
else
printf("\n");
- logmsg_free(msg, commit);
+ unuse_commit_buffer(commit, msg);
}
static void update_index_from_diff(struct diff_queue_struct *q,
diff --git a/commit.h b/commit.h
index 259c0ae..5ce5ce7 100644
--- a/commit.h
+++ b/commit.h
@@ -156,7 +156,6 @@ struct rev_info; /* in revision.h, it circularly uses enum cmit_fmt */
extern const char *logmsg_reencode(const struct commit *commit,
char **commit_encoding,
const char *output_encoding);
-extern void logmsg_free(const char *msg, const struct commit *commit);
extern void get_commit_format(const char *arg, struct rev_info *);
extern const char *format_subject(struct strbuf *sb, const char *msg,
const char *line_separator);
diff --git a/pretty.c b/pretty.c
index d152de2..8fd60cd 100644
--- a/pretty.c
+++ b/pretty.c
@@ -613,22 +613,9 @@ const char *logmsg_reencode(const struct commit *commit,
static const char *utf8 = "UTF-8";
const char *use_encoding;
char *encoding;
- char *msg = commit->buffer;
+ const char *msg = get_commit_buffer(commit);
char *out;
- if (!msg) {
- enum object_type type;
- unsigned long size;
-
- msg = read_sha1_file(commit->object.sha1, &type, &size);
- if (!msg)
- die("Cannot read commit object %s",
- sha1_to_hex(commit->object.sha1));
- if (type != OBJ_COMMIT)
- die("Expected commit for '%s', got %s",
- sha1_to_hex(commit->object.sha1), typename(type));
- }
-
if (!output_encoding || !*output_encoding) {
if (commit_encoding)
*commit_encoding =
@@ -652,12 +639,13 @@ const char *logmsg_reencode(const struct commit *commit,
* Otherwise, we still want to munge the encoding header in the
* result, which will be done by modifying the buffer. If we
* are using a fresh copy, we can reuse it. But if we are using
- * the cached copy from commit->buffer, we need to duplicate it
- * to avoid munging commit->buffer.
+ * the cached copy from get_commit_buffer, we need to duplicate it
+ * to avoid munging the cached copy.
*/
- out = msg;
- if (out == commit->buffer)
- out = xstrdup(out);
+ if (msg == get_cached_commit_buffer(commit))
+ out = xstrdup(msg);
+ else
+ out = (char *)msg;
}
else {
/*
@@ -667,8 +655,8 @@ const char *logmsg_reencode(const struct commit *commit,
* copy, we can free it.
*/
out = reencode_string(msg, output_encoding, use_encoding);
- if (out && msg != commit->buffer)
- free(msg);
+ if (out)
+ unuse_commit_buffer(commit, msg);
}
/*
@@ -687,12 +675,6 @@ const char *logmsg_reencode(const struct commit *commit,
return out ? out : msg;
}
-void logmsg_free(const char *msg, const struct commit *commit)
-{
- if (msg != commit->buffer)
- free((void *)msg);
-}
-
static int mailmap_name(const char **email, size_t *email_len,
const char **name, size_t *name_len)
{
@@ -1531,7 +1513,7 @@ void format_commit_message(const struct commit *commit,
}
free(context.commit_encoding);
- logmsg_free(context.message, commit);
+ unuse_commit_buffer(commit, context.message);
free(context.signature_check.gpg_output);
free(context.signature_check.signer);
}
@@ -1767,7 +1749,7 @@ void pretty_print_commit(struct pretty_print_context *pp,
if (pp->fmt == CMIT_FMT_EMAIL && sb->len <= beginning_of_body)
strbuf_addch(sb, '\n');
- logmsg_free(reencoded, commit);
+ unuse_commit_buffer(commit, reencoded);
}
void pp_commit_easy(enum cmit_fmt fmt, const struct commit *commit,
diff --git a/revision.c b/revision.c
index be151ef..1cc91e5 100644
--- a/revision.c
+++ b/revision.c
@@ -2844,7 +2844,7 @@ static int commit_match(struct commit *commit, struct rev_info *opt)
retval = grep_buffer(&opt->grep_filter,
(char *)message, strlen(message));
strbuf_release(&buf);
- logmsg_free(message, commit);
+ unuse_commit_buffer(commit, message);
return retval;
}
diff --git a/sequencer.c b/sequencer.c
index 3fcab4d..4632f7d 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -154,7 +154,7 @@ static int get_message(struct commit *commit, struct commit_message *out)
static void free_message(struct commit *commit, struct commit_message *msg)
{
free(msg->parent_label);
- logmsg_free(msg->message, commit);
+ unuse_commit_buffer(commit, msg->message);
}
static void write_cherry_pick_head(struct commit *commit, const char *pseudoref)
--
2.0.0.729.g520999f
--
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