Continue where ae021d87 (use skip_prefix to avoid magic numbers) left off
and use skip_prefix() in more places for determining the lengths of prefix
strings to avoid using dependent constants and other indirect methods.
Signed-off-by: Rene Scharfe <l.s.r@xxxxxx>
---
builtin/apply.c | 2 +-
builtin/branch.c | 29 +++++++++++------------
builtin/cat-file.c | 5 ++--
builtin/checkout.c | 6 ++---
builtin/clean.c | 7 +++---
builtin/commit.c | 18 +++++++--------
builtin/get-tar-commit-id.c | 5 ++--
builtin/log.c | 6 +++--
builtin/remote-ext.c | 10 ++++----
pretty.c | 56 +++++++++++++++++++++------------------------
10 files changed, 69 insertions(+), 75 deletions(-)
diff --git a/builtin/apply.c b/builtin/apply.c
index 8714a88..97f7e8e 100644
--- a/builtin/apply.c
+++ b/builtin/apply.c
@@ -435,7 +435,7 @@ static unsigned long linelen(const char *buffer, unsigned long size)
static int is_dev_null(const char *str)
{
- return !memcmp("/dev/null", str, 9) && isspace(str[9]);
+ return skip_prefix(str, "/dev/null", &str) && isspace(*str);
}
#define TERM_SPACE 1
diff --git a/builtin/branch.c b/builtin/branch.c
index 9e4666f..6785097 100644
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -81,14 +81,16 @@ static int parse_branch_color_slot(const char *var, int ofs)
static int git_branch_config(const char *var, const char *value, void *cb)
{
+ const char *slot_name;
+
if (starts_with(var, "column."))
return git_column_config(var, value, "branch", &colopts);
if (!strcmp(var, "color.branch")) {
branch_use_color = git_config_colorbool(var, value);
return 0;
}
- if (starts_with(var, "color.branch.")) {
- int slot = parse_branch_color_slot(var, 13);
+ if (skip_prefix(var, "color.branch.", &slot_name)) {
+ int slot = parse_branch_color_slot(var, slot_name - var);
if (slot < 0)
return 0;
if (!value)
@@ -335,20 +337,18 @@ static int append_ref(const char *refname, const unsigned char *sha1, int flags,
static struct {
int kind;
const char *prefix;
- int pfxlen;
} ref_kind[] = {
- { REF_LOCAL_BRANCH, "refs/heads/", 11 },
- { REF_REMOTE_BRANCH, "refs/remotes/", 13 },
+ { REF_LOCAL_BRANCH, "refs/heads/" },
+ { REF_REMOTE_BRANCH, "refs/remotes/" },
};
/* Detect kind */
for (i = 0; i < ARRAY_SIZE(ref_kind); i++) {
prefix = ref_kind[i].prefix;
- if (strncmp(refname, prefix, ref_kind[i].pfxlen))
- continue;
- kind = ref_kind[i].kind;
- refname += ref_kind[i].pfxlen;
- break;
+ if (skip_prefix(refname, prefix, &refname)) {
+ kind = ref_kind[i].kind;
+ break;
+ }
}
if (ARRAY_SIZE(ref_kind) <= i)
return 0;
@@ -872,13 +872,10 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
head = resolve_refdup("HEAD", head_sha1, 0, NULL);
if (!head)
die(_("Failed to resolve HEAD as a valid ref."));
- if (!strcmp(head, "HEAD")) {
+ if (!strcmp(head, "HEAD"))
detached = 1;
- } else {
- if (!starts_with(head, "refs/heads/"))
- die(_("HEAD not found below refs/heads!"));
- head += 11;
- }
+ else if (!skip_prefix(head, "refs/heads/", &head))
+ die(_("HEAD not found below refs/heads!"));
hashcpy(merge_filter_ref, head_sha1);
diff --git a/builtin/cat-file.c b/builtin/cat-file.c
index 7073304..f8d8129 100644
--- a/builtin/cat-file.c
+++ b/builtin/cat-file.c
@@ -82,8 +82,9 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name)
enum object_type type;
unsigned long size;
char *buffer = read_sha1_file(sha1, &type, &size);
- if (memcmp(buffer, "object ", 7) ||
- get_sha1_hex(buffer + 7, blob_sha1))
+ const char *target;
+ if (!skip_prefix(buffer, "object ", &target) ||
+ get_sha1_hex(target, blob_sha1))
die("%s not a valid tag", sha1_to_hex(sha1));
free(buffer);
} else
diff --git a/builtin/checkout.c b/builtin/checkout.c
index 8afdf2b..cef1996 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -1150,10 +1150,8 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
const char *argv0 = argv[0];
if (!argc || !strcmp(argv0, "--"))
die (_("--track needs a branch name"));
- if (starts_with(argv0, "refs/"))
- argv0 += 5;
- if (starts_with(argv0, "remotes/"))
- argv0 += 8;
+ skip_prefix(argv0, "refs/", &argv0);
+ skip_prefix(argv0, "remotes/", &argv0);
argv0 = strchr(argv0, '/');
if (!argv0 || !argv0[1])
die (_("Missing branch name; try -b"));
diff --git a/builtin/clean.c b/builtin/clean.c
index 3beeea6..c35505e 100644
--- a/builtin/clean.c
+++ b/builtin/clean.c
@@ -100,6 +100,8 @@ static int parse_clean_color_slot(const char *var)
static int git_clean_config(const char *var, const char *value, void *cb)
{
+ const char *slot_name;
+
if (starts_with(var, "column."))
return git_column_config(var, value, "clean", &colopts);
@@ -109,9 +111,8 @@ static int git_clean_config(const char *var, const char *value, void *cb)
clean_use_color = git_config_colorbool(var, value);
return 0;
}
- if (starts_with(var, "color.interactive.")) {
- int slot = parse_clean_color_slot(var +
- strlen("color.interactive."));
+ if (skip_prefix(var, "color.interactive.", &slot_name)) {
+ int slot = parse_clean_color_slot(slot_name);
if (slot < 0)
return 0;
if (!value)
diff --git a/builtin/commit.c b/builtin/commit.c
index b0fe784..cff7802 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -1294,6 +1294,7 @@ static int parse_status_slot(const char *var, int offset)
static int git_status_config(const char *k, const char *v, void *cb)
{
struct wt_status *s = cb;
+ const char *slot_name;
if (starts_with(k, "column."))
return git_column_config(k, v, "status", &s->colopts);
@@ -1323,8 +1324,9 @@ static int git_status_config(const char *k, const char *v, void *cb)
s->display_comment_prefix = git_config_bool(k, v);
return 0;
}
- if (starts_with(k, "status.color.") || starts_with(k, "color.status.")) {
- int slot = parse_status_slot(k, 13);
+ if (skip_prefix(k, "status.color.", &slot_name) ||
+ skip_prefix(k, "color.status.", &slot_name)) {
+ int slot = parse_status_slot(k, slot_name - k);
if (slot < 0)
return 0;
if (!v)
@@ -1513,13 +1515,11 @@ static void print_summary(const char *prefix, const unsigned char *sha1,
diff_setup_done(&rev.diffopt);
head = resolve_ref_unsafe("HEAD", junk_sha1, 0, NULL);
- printf("[%s%s ",
- starts_with(head, "refs/heads/") ?
- head + 11 :
- !strcmp(head, "HEAD") ?
- _("detached HEAD") :
- head,
- initial_commit ? _(" (root-commit)") : "");
+ if (!strcmp(head, "HEAD"))
+ head = _("detached HEAD");
+ else
+ skip_prefix(head, "refs/heads/", &head);
+ printf("[%s%s ", head, initial_commit ? _(" (root-commit)") : "");
if (!log_tree_commit(&rev, commit)) {
rev.always_show_header = 1;
diff --git a/builtin/get-tar-commit-id.c b/builtin/get-tar-commit-id.c
index aa72596..6f4147a 100644
--- a/builtin/get-tar-commit-id.c
+++ b/builtin/get-tar-commit-id.c
@@ -19,6 +19,7 @@ int cmd_get_tar_commit_id(int argc, const char **argv, const char *prefix)
char buffer[HEADERSIZE];
struct ustar_header *header = (struct ustar_header *)buffer;
char *content = buffer + RECORDSIZE;
+ const char *comment;
ssize_t n;
if (argc != 1)
@@ -29,10 +30,10 @@ int cmd_get_tar_commit_id(int argc, const char **argv, const char *prefix)
die("git get-tar-commit-id: read error");
if (header->typeflag[0] != 'g')
return 1;
- if (memcmp(content, "52 comment=", 11))
+ if (!skip_prefix(content, "52 comment=", &comment))
return 1;
- n = write_in_full(1, content + 11, 41);
+ n = write_in_full(1, comment, 41);
if (n < 41)
die_errno("git get-tar-commit-id: write error");
diff --git a/builtin/log.c b/builtin/log.c
index 2fb34c7..1202eba 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -368,6 +368,8 @@ static int cmd_log_walk(struct rev_info *rev)
static int git_log_config(const char *var, const char *value, void *cb)
{
+ const char *slot_name;
+
if (!strcmp(var, "format.pretty"))
return git_config_string(&fmt_pretty, var, value);
if (!strcmp(var, "format.subjectprefix"))
@@ -388,8 +390,8 @@ static int git_log_config(const char *var, const char *value, void *cb)
default_show_root = git_config_bool(var, value);
return 0;
}
- if (starts_with(var, "color.decorate."))
- return parse_decorate_color_config(var, 15, value);
+ if (skip_prefix(var, "color.decorate.", &slot_name))
+ return parse_decorate_color_config(var, slot_name - var, value);
if (!strcmp(var, "log.mailmap")) {
use_mailmap_config = git_config_bool(var, value);
return 0;
diff --git a/builtin/remote-ext.c b/builtin/remote-ext.c
index d699d28..3b8c22c 100644
--- a/builtin/remote-ext.c
+++ b/builtin/remote-ext.c
@@ -30,16 +30,14 @@ static char *strip_escapes(const char *str, const char *service,
size_t rpos = 0;
int escape = 0;
char special = 0;
- size_t psoff = 0;
+ const char *service_noprefix = service;
struct strbuf ret = STRBUF_INIT;
- /* Calculate prefix length for \s and lengths for \s and \S */
- if (!strncmp(service, "git-", 4))
- psoff = 4;
+ skip_prefix(service_noprefix, "git-", &service_noprefix);
/* Pass the service to command. */
setenv("GIT_EXT_SERVICE", service, 1);
- setenv("GIT_EXT_SERVICE_NOPREFIX", service + psoff, 1);
+ setenv("GIT_EXT_SERVICE_NOPREFIX", service_noprefix, 1);
/* Scan the length of argument. */
while (str[rpos] && (escape || str[rpos] != ' ')) {
@@ -85,7 +83,7 @@ static char *strip_escapes(const char *str, const char *service,
strbuf_addch(&ret, str[rpos]);
break;
case 's':
- strbuf_addstr(&ret, service + psoff);
+ strbuf_addstr(&ret, service_noprefix);
break;
case 'S':
strbuf_addstr(&ret, service);
diff --git a/pretty.c b/pretty.c
index 5fd9de6..a181ac6 100644
--- a/pretty.c
+++ b/pretty.c
@@ -73,10 +73,9 @@ static int git_pretty_formats_config(const char *var, const char *value, void *c
if (git_config_string(&fmt, var, value))
return -1;
- if (starts_with(fmt, "format:") || starts_with(fmt, "tformat:")) {
- commit_format->is_tformat = fmt[0] == 't';
- fmt = strchr(fmt, ':') + 1;
- } else if (strchr(fmt, '%'))
+ if (skip_prefix(fmt, "format:", &fmt))
+ commit_format->is_tformat = 0;
+ else if (skip_prefix(fmt, "tformat:", &fmt) || strchr(fmt, '%'))
commit_format->is_tformat = 1;
else
commit_format->is_alias = 1;
@@ -157,12 +156,12 @@ void get_commit_format(const char *arg, struct rev_info *rev)
rev->commit_format = CMIT_FMT_DEFAULT;
return;
}
- if (starts_with(arg, "format:") || starts_with(arg, "tformat:")) {
- save_user_format(rev, strchr(arg, ':') + 1, arg[0] == 't');
+ if (skip_prefix(arg, "format:", &arg)) {
+ save_user_format(rev, arg, 0);
return;
}
- if (!*arg || strchr(arg, '%')) {
+ if (!*arg || skip_prefix(arg, "tformat:", &arg) || strchr(arg, '%')) {
save_user_format(rev, arg, 1);
return;
}
@@ -809,18 +808,19 @@ static void parse_commit_header(struct format_commit_context *context)
int i;
for (i = 0; msg[i]; i++) {
+ const char *name;
int eol;
for (eol = i; msg[eol] && msg[eol] != '\n'; eol++)
; /* do nothing */
if (i == eol) {
break;
- } else if (starts_with(msg + i, "author ")) {
- context->author.off = i + 7;
- context->author.len = eol - i - 7;
- } else if (starts_with(msg + i, "committer ")) {
- context->committer.off = i + 10;
- context->committer.len = eol - i - 10;
+ } else if (skip_prefix(msg + i, "author ", &name)) {
+ context->author.off = name - msg;
+ context->author.len = msg + eol - name;
+ } else if (skip_prefix(msg + i, "committer ", &name)) {
+ context->committer.off = name - msg;
+ context->committer.len = msg + eol - name;
}
i = eol;
}
@@ -951,6 +951,8 @@ static size_t parse_color(struct strbuf *sb, /* in UTF-8 */
const char *placeholder,
struct format_commit_context *c)
{
+ const char *rest = placeholder;
+
if (placeholder[1] == '(') {
const char *begin = placeholder + 2;
const char *end = strchr(begin, ')');
@@ -958,10 +960,9 @@ static size_t parse_color(struct strbuf *sb, /* in UTF-8 */
if (!end)
return 0;
- if (starts_with(begin, "auto,")) {
+ if (skip_prefix(begin, "auto,", &begin)) {
if (!want_color(c->pretty_ctx->color))
return end - placeholder + 1;
- begin += 5;
}
color_parse_mem(begin,
end - begin,
@@ -969,20 +970,15 @@ static size_t parse_color(struct strbuf *sb, /* in UTF-8 */
strbuf_addstr(sb, color);
return end - placeholder + 1;
}
- if (starts_with(placeholder + 1, "red")) {
+ if (skip_prefix(placeholder + 1, "red", &rest))
strbuf_addstr(sb, GIT_COLOR_RED);
- return 4;
- } else if (starts_with(placeholder + 1, "green")) {
+ else if (skip_prefix(placeholder + 1, "green", &rest))
strbuf_addstr(sb, GIT_COLOR_GREEN);
- return 6;
- } else if (starts_with(placeholder + 1, "blue")) {
+ else if (skip_prefix(placeholder + 1, "blue", &rest))
strbuf_addstr(sb, GIT_COLOR_BLUE);
- return 5;
- } else if (starts_with(placeholder + 1, "reset")) {
+ else if (skip_prefix(placeholder + 1, "reset", &rest))
strbuf_addstr(sb, GIT_COLOR_RESET);
- return 6;
- } else
- return 0;
+ return rest - placeholder;
}
static size_t parse_padding_placeholder(struct strbuf *sb,
@@ -1522,7 +1518,7 @@ static void pp_header(struct pretty_print_context *pp,
int parents_shown = 0;
for (;;) {
- const char *line = *msg_p;
+ const char *name, *line = *msg_p;
int linelen = get_one_line(*msg_p);
if (!linelen)
@@ -1557,14 +1553,14 @@ static void pp_header(struct pretty_print_context *pp,
* FULL shows both authors but not dates.
* FULLER shows both authors and dates.
*/
- if (starts_with(line, "author ")) {
+ if (skip_prefix(line, "author ", &name)) {
strbuf_grow(sb, linelen + 80);
- pp_user_info(pp, "Author", sb, line + 7, encoding);
+ pp_user_info(pp, "Author", sb, name, encoding);
}
- if (starts_with(line, "committer ") &&
+ if (skip_prefix(line, "committer ", &name) &&
(pp->fmt == CMIT_FMT_FULL || pp->fmt == CMIT_FMT_FULLER)) {
strbuf_grow(sb, linelen + 80);
- pp_user_info(pp, "Commit", sb, line + 10, encoding);
+ pp_user_info(pp, "Commit", sb, name, encoding);
}
}
}
--
2.1.2
--
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