It's a common idiom to match a prefix and then skip past it
with a magic number, like:
if (starts_with(foo, "bar"))
foo += 3;
This is easy to get wrong, since you have to count the
prefix string yourself, and there's no compiler check if the
string changes. We can use skip_prefix to avoid the magic
numbers here.
Note that some of these conversions could be much shorter.
For example:
if (starts_with(arg, "--foo=")) {
bar = arg + 6;
continue;
}
could become:
if (skip_prefix(arg, "--foo=", &bar))
continue;
However, I have left it as:
if (skip_prefix(arg, "--foo=", &v)) {
bar = v;
continue;
}
to visually match nearby cases which need to actually
process the string. Like:
if (skip_prefix(arg, "--foo=", &v)) {
bar = atoi(v);
continue;
}
Signed-off-by: Jeff King <peff@xxxxxxxx>
---
alias.c | 3 ++-
connect.c | 11 +++++----
convert.c | 4 ++--
daemon.c | 73 ++++++++++++++++++++++++++++++----------------------------
diff.c | 65 ++++++++++++++++++++++++++-------------------------
fast-import.c | 69 +++++++++++++++++++++++++++++-------------------------
fetch-pack.c | 9 ++++----
git.c | 18 +++++++--------
help.c | 6 +++--
http-backend.c | 11 +++++----
http-push.c | 11 +++++----
11 files changed, 149 insertions(+), 131 deletions(-)
diff --git a/alias.c b/alias.c
index 5efc3d6..758c867 100644
--- a/alias.c
+++ b/alias.c
@@ -5,7 +5,8 @@ static char *alias_val;
static int alias_lookup_cb(const char *k, const char *v, void *cb)
{
- if (starts_with(k, "alias.") && !strcmp(k + 6, alias_key)) {
+ const char *name;
+ if (skip_prefix(k, "alias.", &name) && !strcmp(name, alias_key)) {
if (!v)
return config_error_nonbool(k);
alias_val = xstrdup(v);
diff --git a/connect.c b/connect.c
index 94a6650..37ff018 100644
--- a/connect.c
+++ b/connect.c
@@ -129,6 +129,7 @@ struct ref **get_remote_heads(int in, char *src_buf, size_t src_len,
char *name;
int len, name_len;
char *buffer = packet_buffer;
+ const char *arg;
len = packet_read(in, &src_buf, &src_len,
packet_buffer, sizeof(packet_buffer),
@@ -140,12 +141,12 @@ struct ref **get_remote_heads(int in, char *src_buf, size_t src_len,
if (!len)
break;
- if (len > 4 && starts_with(buffer, "ERR "))
- die("remote error: %s", buffer + 4);
+ if (len > 4 && skip_prefix(buffer, "ERR ", &arg))
+ die("remote error: %s", arg);
- if (len == 48 && starts_with(buffer, "shallow ")) {
- if (get_sha1_hex(buffer + 8, old_sha1))
- die("protocol error: expected shallow sha-1, got '%s'", buffer + 8);
+ if (len == 48 && skip_prefix(buffer, "shallow ", &arg)) {
+ if (get_sha1_hex(arg, old_sha1))
+ die("protocol error: expected shallow sha-1, got '%s'", arg);
if (!shallow_points)
die("repository on the other end cannot be shallow");
sha1_array_append(shallow_points, old_sha1);
diff --git a/convert.c b/convert.c
index ab80b72..cb5fbb4 100644
--- a/convert.c
+++ b/convert.c
@@ -1121,9 +1121,9 @@ static int is_foreign_ident(const char *str)
{
int i;
- if (!starts_with(str, "$Id: "))
+ if (!skip_prefix(str, "$Id: ", &str))
return 0;
- for (i = 5; str[i]; i++) {
+ for (i = 0; str[i]; i++) {
if (isspace(str[i]) && str[i+1] != '$')
return 1;
}
diff --git a/daemon.c b/daemon.c
index 18818c3..6d25828 100644
--- a/daemon.c
+++ b/daemon.c
@@ -235,8 +235,10 @@ static int service_enabled;
static int git_daemon_config(const char *var, const char *value, void *cb)
{
- if (starts_with(var, "daemon.") &&
- !strcmp(var + 7, service_looking_at->config_name)) {
+ const char *service;
+
+ if (skip_prefix(var, "daemon.", &service) &&
+ !strcmp(service, service_looking_at->config_name)) {
service_enabled = git_config_bool(var, value);
return 0;
}
@@ -1133,16 +1135,17 @@ int main(int argc, char **argv)
for (i = 1; i < argc; i++) {
char *arg = argv[i];
+ const char *v;
- if (starts_with(arg, "--listen=")) {
- string_list_append(&listen_addr, xstrdup_tolower(arg + 9));
+ if (skip_prefix(arg, "--listen=", &v)) {
+ string_list_append(&listen_addr, xstrdup_tolower(v));
continue;
}
- if (starts_with(arg, "--port=")) {
+ if (skip_prefix(arg, "--port=", &v)) {
char *end;
unsigned long n;
- n = strtoul(arg+7, &end, 0);
- if (arg[7] && !*end) {
+ n = strtoul(v, &end, 0);
+ if (*v && !*end) {
listen_port = n;
continue;
}
@@ -1168,20 +1171,20 @@ int main(int argc, char **argv)
export_all_trees = 1;
continue;
}
- if (starts_with(arg, "--access-hook=")) {
- access_hook = arg + 14;
+ if (skip_prefix(arg, "--access-hook=", &v)) {
+ access_hook = v;
continue;
}
- if (starts_with(arg, "--timeout=")) {
- timeout = atoi(arg+10);
+ if (skip_prefix(arg, "--timeout=", &v)) {
+ timeout = atoi(v);
continue;
}
- if (starts_with(arg, "--init-timeout=")) {
- init_timeout = atoi(arg+15);
+ if (skip_prefix(arg, "--init-timeout=", &v)) {
+ init_timeout = atoi(v);
continue;
}
- if (starts_with(arg, "--max-connections=")) {
- max_connections = atoi(arg+18);
+ if (skip_prefix(arg, "--max-connections=", &v)) {
+ max_connections = atoi(v);
if (max_connections < 0)
max_connections = 0; /* unlimited */
continue;
@@ -1190,16 +1193,16 @@ int main(int argc, char **argv)
strict_paths = 1;
continue;
}
- if (starts_with(arg, "--base-path=")) {
- base_path = arg+12;
+ if (skip_prefix(arg, "--base-path=", &v)) {
+ base_path = v;
continue;
}
if (!strcmp(arg, "--base-path-relaxed")) {
base_path_relaxed = 1;
continue;
}
- if (starts_with(arg, "--interpolated-path=")) {
- interpolated_path = arg+20;
+ if (skip_prefix(arg, "--interpolated-path=", &v)) {
+ interpolated_path = v;
continue;
}
if (!strcmp(arg, "--reuseaddr")) {
@@ -1210,12 +1213,12 @@ int main(int argc, char **argv)
user_path = "";
continue;
}
- if (starts_with(arg, "--user-path=")) {
- user_path = arg + 12;
+ if (skip_prefix(arg, "--user-path=", &v)) {
+ user_path = v;
continue;
}
- if (starts_with(arg, "--pid-file=")) {
- pid_file = arg + 11;
+ if (skip_prefix(arg, "--pid-file=", &v)) {
+ pid_file = v;
continue;
}
if (!strcmp(arg, "--detach")) {
@@ -1223,28 +1226,28 @@ int main(int argc, char **argv)
log_syslog = 1;
continue;
}
- if (starts_with(arg, "--user=")) {
- user_name = arg + 7;
+ if (skip_prefix(arg, "--user=", &v)) {
+ user_name = v;
continue;
}
- if (starts_with(arg, "--group=")) {
- group_name = arg + 8;
+ if (skip_prefix(arg, "--group=", &v)) {
+ group_name = v;
continue;
}
- if (starts_with(arg, "--enable=")) {
- enable_service(arg + 9, 1);
+ if (skip_prefix(arg, "--enable=", &v)) {
+ enable_service(v, 1);
continue;
}
- if (starts_with(arg, "--disable=")) {
- enable_service(arg + 10, 0);
+ if (skip_prefix(arg, "--disable=", &v)) {
+ enable_service(v, 0);
continue;
}
- if (starts_with(arg, "--allow-override=")) {
- make_service_overridable(arg + 17, 1);
+ if (skip_prefix(arg, "--allow-override=", &v)) {
+ make_service_overridable(v, 1);
continue;
}
- if (starts_with(arg, "--forbid-override=")) {
- make_service_overridable(arg + 18, 0);
+ if (skip_prefix(arg, "--forbid-override=", &v)) {
+ make_service_overridable(v, 0);
continue;
}
if (!strcmp(arg, "--informative-errors")) {
diff --git a/diff.c b/diff.c
index 77c5eb4..97db932 100644
--- a/diff.c
+++ b/diff.c
@@ -231,6 +231,8 @@ int git_diff_ui_config(const char *var, const char *value, void *cb)
int git_diff_basic_config(const char *var, const char *value, void *cb)
{
+ const char *name;
+
if (!strcmp(var, "diff.renamelimit")) {
diff_rename_limit_default = git_config_int(var, value);
return 0;
@@ -239,8 +241,9 @@ int git_diff_basic_config(const char *var, const char *value, void *cb)
if (userdiff_config(var, value) < 0)
return -1;
- if (starts_with(var, "diff.color.") || starts_with(var, "color.diff.")) {
- int slot = parse_diff_color_slot(var + 11);
+ if (skip_prefix(var, "diff.color.", &name) ||
+ skip_prefix(var, "color.diff.", &name)) {
+ int slot = parse_diff_color_slot(name);
if (slot < 0)
return 0;
if (!value)
@@ -2341,6 +2344,7 @@ static void builtin_diff(const char *name_a,
} else {
/* Crazy xdl interfaces.. */
const char *diffopts = getenv("GIT_DIFF_OPTS");
+ const char *v;
xpparam_t xpp;
xdemitconf_t xecfg;
struct emit_callback ecbdata;
@@ -2379,10 +2383,10 @@ static void builtin_diff(const char *name_a,
xdiff_set_find_func(&xecfg, pe->pattern, pe->cflags);
if (!diffopts)
;
- else if (starts_with(diffopts, "--unified="))
- xecfg.ctxlen = strtoul(diffopts + 10, NULL, 10);
- else if (starts_with(diffopts, "-u"))
- xecfg.ctxlen = strtoul(diffopts + 2, NULL, 10);
+ else if (skip_prefix(diffopts, "--unified=", &v))
+ xecfg.ctxlen = strtoul(v, NULL, 10);
+ else if (skip_prefix(diffopts, "-u", &v))
+ xecfg.ctxlen = strtoul(v, NULL, 10);
if (o->word_diff)
init_diff_words_data(&ecbdata, o, one, two);
xdi_diff_outf(&mf1, &mf2, fn_out_consume, &ecbdata,
@@ -3609,17 +3613,17 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
options->output_format |= DIFF_FORMAT_SHORTSTAT;
else if (!strcmp(arg, "-X") || !strcmp(arg, "--dirstat"))
return parse_dirstat_opt(options, "");
- else if (starts_with(arg, "-X"))
- return parse_dirstat_opt(options, arg + 2);
- else if (starts_with(arg, "--dirstat="))
- return parse_dirstat_opt(options, arg + 10);
+ else if (skip_prefix(arg, "-X", &arg))
+ return parse_dirstat_opt(options, arg);
+ else if (skip_prefix(arg, "--dirstat=", &arg))
+ return parse_dirstat_opt(options, arg);
else if (!strcmp(arg, "--cumulative"))
return parse_dirstat_opt(options, "cumulative");
else if (!strcmp(arg, "--dirstat-by-file"))
return parse_dirstat_opt(options, "files");
- else if (starts_with(arg, "--dirstat-by-file=")) {
+ else if (skip_prefix(arg, "--dirstat-by-file=", &arg)) {
parse_dirstat_opt(options, "files");
- return parse_dirstat_opt(options, arg + 18);
+ return parse_dirstat_opt(options, arg);
}
else if (!strcmp(arg, "--check"))
options->output_format |= DIFF_FORMAT_CHECKDIFF;
@@ -3669,9 +3673,9 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
DIFF_OPT_CLR(options, RENAME_EMPTY);
else if (!strcmp(arg, "--relative"))
DIFF_OPT_SET(options, RELATIVE_NAME);
- else if (starts_with(arg, "--relative=")) {
+ else if (skip_prefix(arg, "--relative=", &arg)) {
DIFF_OPT_SET(options, RELATIVE_NAME);
- options->prefix = arg + 11;
+ options->prefix = arg;
}
/* xdiff options */
@@ -3722,8 +3726,8 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
DIFF_OPT_CLR(options, FOLLOW_RENAMES);
else if (!strcmp(arg, "--color"))
options->use_color = 1;
- else if (starts_with(arg, "--color=")) {
- int value = git_config_colorbool(NULL, arg+8);
+ else if (skip_prefix(arg, "--color=", &arg)) {
+ int value = git_config_colorbool(NULL, arg);
if (value < 0)
return error("option `color' expects \"always\", \"auto\", or \"never\"");
options->use_color = value;
@@ -3734,29 +3738,28 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
options->use_color = 1;
options->word_diff = DIFF_WORDS_COLOR;
}
- else if (starts_with(arg, "--color-words=")) {
+ else if (skip_prefix(arg, "--color-words=", &arg)) {
options->use_color = 1;
options->word_diff = DIFF_WORDS_COLOR;
- options->word_regex = arg + 14;
+ options->word_regex = arg;
}
else if (!strcmp(arg, "--word-diff")) {
if (options->word_diff == DIFF_WORDS_NONE)
options->word_diff = DIFF_WORDS_PLAIN;
}
- else if (starts_with(arg, "--word-diff=")) {
- const char *type = arg + 12;
- if (!strcmp(type, "plain"))
+ else if (skip_prefix(arg, "--word-diff=", &arg)) {
+ if (!strcmp(arg, "plain"))
options->word_diff = DIFF_WORDS_PLAIN;
- else if (!strcmp(type, "color")) {
+ else if (!strcmp(arg, "color")) {
options->use_color = 1;
options->word_diff = DIFF_WORDS_COLOR;
}
- else if (!strcmp(type, "porcelain"))
+ else if (!strcmp(arg, "porcelain"))
options->word_diff = DIFF_WORDS_PORCELAIN;
- else if (!strcmp(type, "none"))
+ else if (!strcmp(arg, "none"))
options->word_diff = DIFF_WORDS_NONE;
else
- die("bad --word-diff argument: %s", type);
+ die("bad --word-diff argument: %s", arg);
}
else if ((argcount = parse_long_opt("word-diff-regex", av, &optarg))) {
if (options->word_diff == DIFF_WORDS_NONE)
@@ -3779,13 +3782,13 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
else if (!strcmp(arg, "--ignore-submodules")) {
DIFF_OPT_SET(options, OVERRIDE_SUBMODULE_CONFIG);
handle_ignore_submodules_arg(options, "all");
- } else if (starts_with(arg, "--ignore-submodules=")) {
+ } else if (skip_prefix(arg, "--ignore-submodules=", &arg)) {
DIFF_OPT_SET(options, OVERRIDE_SUBMODULE_CONFIG);
- handle_ignore_submodules_arg(options, arg + 20);
+ handle_ignore_submodules_arg(options, arg);
} else if (!strcmp(arg, "--submodule"))
DIFF_OPT_SET(options, SUBMODULE_LOG);
- else if (starts_with(arg, "--submodule="))
- return parse_submodule_opt(options, arg + 12);
+ else if (skip_prefix(arg, "--submodule=", &arg))
+ return parse_submodule_opt(options, arg);
/* misc options */
else if (!strcmp(arg, "-z"))
@@ -3820,8 +3823,8 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
}
else if (!strcmp(arg, "--abbrev"))
options->abbrev = DEFAULT_ABBREV;
- else if (starts_with(arg, "--abbrev=")) {
- options->abbrev = strtoul(arg + 9, NULL, 10);
+ else if (skip_prefix(arg, "--abbrev=", &arg)) {
+ options->abbrev = strtoul(arg, NULL, 10);
if (options->abbrev < MINIMUM_ABBREV)
options->abbrev = MINIMUM_ABBREV;
else if (40 < options->abbrev)
diff --git a/fast-import.c b/fast-import.c
index b2030cc..a3ffe30 100644
--- a/fast-import.c
+++ b/fast-import.c
@@ -1912,8 +1912,9 @@ static void skip_optional_lf(void)
static void parse_mark(void)
{
- if (starts_with(command_buf.buf, "mark :")) {
- next_mark = strtoumax(command_buf.buf + 6, NULL, 10);
+ const char *v;
+ if (skip_prefix(command_buf.buf, "mark :", &v)) {
+ next_mark = strtoumax(v, NULL, 10);
read_next_command();
}
else
@@ -1922,14 +1923,15 @@ static void parse_mark(void)
static int parse_data(struct strbuf *sb, uintmax_t limit, uintmax_t *len_res)
{
+ const char *data;
strbuf_reset(sb);
- if (!starts_with(command_buf.buf, "data "))
+ if (!skip_prefix(command_buf.buf, "data ", &data))
die("Expected 'data n' command, found: %s", command_buf.buf);
- if (starts_with(command_buf.buf + 5, "<<")) {
- char *term = xstrdup(command_buf.buf + 5 + 2);
- size_t term_len = command_buf.len - 5 - 2;
+ if (skip_prefix(data, "<<", &data)) {
+ char *term = xstrdup(data);
+ size_t term_len = command_buf.len - (data - command_buf.buf);
strbuf_detach(&command_buf, NULL);
for (;;) {
@@ -1944,7 +1946,7 @@ static int parse_data(struct strbuf *sb, uintmax_t limit, uintmax_t *len_res)
free(term);
}
else {
- uintmax_t len = strtoumax(command_buf.buf + 5, NULL, 10);
+ uintmax_t len = strtoumax(data, NULL, 10);
size_t n = 0, length = (size_t)len;
if (limit && limit < len) {
@@ -2676,6 +2678,7 @@ static void parse_new_commit(void)
struct hash_list *merge_list = NULL;
unsigned int merge_count;
unsigned char prev_fanout, new_fanout;
+ const char *v;
/* Obtain the branch name from the rest of our command */
sp = strchr(command_buf.buf, ' ') + 1;
@@ -2685,12 +2688,12 @@ static void parse_new_commit(void)
read_next_command();
parse_mark();
- if (starts_with(command_buf.buf, "author ")) {
- author = parse_ident(command_buf.buf + 7);
+ if (skip_prefix(command_buf.buf, "author ", &v)) {
+ author = parse_ident(v);
read_next_command();
}
- if (starts_with(command_buf.buf, "committer ")) {
- committer = parse_ident(command_buf.buf + 10);
+ if (skip_prefix(command_buf.buf, "committer ", &v)) {
+ committer = parse_ident(v);
read_next_command();
}
if (!committer)
@@ -2777,6 +2780,7 @@ static void parse_new_tag(void)
uintmax_t from_mark = 0;
unsigned char sha1[20];
enum object_type type;
+ const char *v;
/* Obtain the new tag name from the rest of our command */
sp = strchr(command_buf.buf, ' ') + 1;
@@ -2819,8 +2823,8 @@ static void parse_new_tag(void)
read_next_command();
/* tagger ... */
- if (starts_with(command_buf.buf, "tagger ")) {
- tagger = parse_ident(command_buf.buf + 7);
+ if (skip_prefix(command_buf.buf, "tagger ", &v)) {
+ tagger = parse_ident(v);
read_next_command();
} else
tagger = NULL;
@@ -3207,9 +3211,9 @@ static void option_export_pack_edges(const char *edges)
static int parse_one_option(const char *option)
{
- if (starts_with(option, "max-pack-size=")) {
+ if (skip_prefix(option, "max-pack-size=", &option)) {
unsigned long v;
- if (!git_parse_ulong(option + 14, &v))
+ if (!git_parse_ulong(option, &v))
return 0;
if (v < 8192) {
warning("max-pack-size is now in bytes, assuming --max-pack-size=%lum", v);
@@ -3219,17 +3223,17 @@ static int parse_one_option(const char *option)
v = 1024 * 1024;
}
max_packsize = v;
- } else if (starts_with(option, "big-file-threshold=")) {
+ } else if (skip_prefix(option, "big-file-threshold=", &option)) {
unsigned long v;
- if (!git_parse_ulong(option + 19, &v))
+ if (!git_parse_ulong(option, &v))
return 0;
big_file_threshold = v;
- } else if (starts_with(option, "depth=")) {
- option_depth(option + 6);
- } else if (starts_with(option, "active-branches=")) {
- option_active_branches(option + 16);
- } else if (starts_with(option, "export-pack-edges=")) {
- option_export_pack_edges(option + 18);
+ } else if (skip_prefix(option, "depth=", &option)) {
+ option_depth(option);
+ } else if (skip_prefix(option, "active-branches=", &option)) {
+ option_active_branches(option);
+ } else if (skip_prefix(option, "export-pack-edges=", &option)) {
+ option_export_pack_edges(option);
} else if (starts_with(option, "quiet")) {
show_stats = 0;
} else if (starts_with(option, "stats")) {
@@ -3243,15 +3247,16 @@ static int parse_one_option(const char *option)
static int parse_one_feature(const char *feature, int from_stream)
{
- if (starts_with(feature, "date-format=")) {
- option_date_format(feature + 12);
- } else if (starts_with(feature, "import-marks=")) {
- option_import_marks(feature + 13, from_stream, 0);
- } else if (starts_with(feature, "import-marks-if-exists=")) {
- option_import_marks(feature + strlen("import-marks-if-exists="),
- from_stream, 1);
- } else if (starts_with(feature, "export-marks=")) {
- option_export_marks(feature + 13);
+ const char *arg;
+
+ if (skip_prefix(feature, "date-format=", &arg)) {
+ option_date_format(arg);
+ } else if (skip_prefix(feature, "import-marks=", &arg)) {
+ option_import_marks(arg, from_stream, 0);
+ } else if (skip_prefix(feature, "import-marks-if-exists=", &arg)) {
+ option_import_marks(arg, from_stream, 1);
+ } else if (skip_prefix(feature, "export-marks=", &arg)) {
+ option_export_marks(arg);
} else if (!strcmp(feature, "cat-blob")) {
; /* Don't die - this feature is supported */
} else if (!strcmp(feature, "relative-marks")) {
diff --git a/fetch-pack.c b/fetch-pack.c
index eeee2bb..3de3bd5 100644
--- a/fetch-pack.c
+++ b/fetch-pack.c
@@ -319,18 +319,19 @@ static int find_common(struct fetch_pack_args *args,
if (args->depth > 0) {
char *line;
+ const char *arg;
unsigned char sha1[20];
send_request(args, fd[1], &req_buf);
while ((line = packet_read_line(fd[0], NULL))) {
- if (starts_with(line, "shallow ")) {
- if (get_sha1_hex(line + 8, sha1))
+ if (skip_prefix(line, "shallow ", &arg)) {
+ if (get_sha1_hex(arg, sha1))
die("invalid shallow line: %s", line);
register_shallow(sha1);
continue;
}
- if (starts_with(line, "unshallow ")) {
- if (get_sha1_hex(line + 10, sha1))
+ if (skip_prefix(line, "unshallow ", &arg)) {
+ if (get_sha1_hex(arg, sha1))
die("invalid unshallow line: %s", line);
if (!lookup_object(sha1))
die("object not found: %s", line);
diff --git a/git.c b/git.c
index 7780572..b2bb09e 100644
--- a/git.c
+++ b/git.c
@@ -54,8 +54,7 @@ static int handle_options(const char ***argv, int *argc, int *envchanged)
/*
* Check remaining flags.
*/
- if (starts_with(cmd, "--exec-path")) {
- cmd += 11;
+ if (skip_prefix(cmd, "--exec-path", &cmd)) {
if (*cmd == '=')
git_set_argv_exec_path(cmd + 1);
else {
@@ -92,8 +91,8 @@ static int handle_options(const char ***argv, int *argc, int *envchanged)
*envchanged = 1;
(*argv)++;
(*argc)--;
- } else if (starts_with(cmd, "--git-dir=")) {
- setenv(GIT_DIR_ENVIRONMENT, cmd + 10, 1);
+ } else if (skip_prefix(cmd, "--git-dir=", &cmd)) {
+ setenv(GIT_DIR_ENVIRONMENT, cmd, 1);
if (envchanged)
*envchanged = 1;
} else if (!strcmp(cmd, "--namespace")) {
@@ -106,8 +105,8 @@ static int handle_options(const char ***argv, int *argc, int *envchanged)
*envchanged = 1;
(*argv)++;
(*argc)--;
- } else if (starts_with(cmd, "--namespace=")) {
- setenv(GIT_NAMESPACE_ENVIRONMENT, cmd + 12, 1);
+ } else if (skip_prefix(cmd, "--namespace=", &cmd)) {
+ setenv(GIT_NAMESPACE_ENVIRONMENT, cmd, 1);
if (envchanged)
*envchanged = 1;
} else if (!strcmp(cmd, "--work-tree")) {
@@ -120,8 +119,8 @@ static int handle_options(const char ***argv, int *argc, int *envchanged)
*envchanged = 1;
(*argv)++;
(*argc)--;
- } else if (starts_with(cmd, "--work-tree=")) {
- setenv(GIT_WORK_TREE_ENVIRONMENT, cmd + 12, 1);
+ } else if (skip_prefix(cmd, "--work-tree=", &cmd)) {
+ setenv(GIT_WORK_TREE_ENVIRONMENT, cmd, 1);
if (envchanged)
*envchanged = 1;
} else if (!strcmp(cmd, "--bare")) {
@@ -578,8 +577,7 @@ int main(int argc, char **av)
* So we just directly call the builtin handler, and die if
* that one cannot handle it.
*/
- if (starts_with(cmd, "git-")) {
- cmd += 4;
+ if (skip_prefix(cmd, "git-", &cmd)) {
argv[0] = cmd;
handle_builtin(argc, argv);
die("cannot handle %s as a builtin", cmd);
diff --git a/help.c b/help.c
index b266b09..b0f1a69 100644
--- a/help.c
+++ b/help.c
@@ -251,11 +251,13 @@ static struct cmdnames aliases;
static int git_unknown_cmd_config(const char *var, const char *value, void *cb)
{
+ const char *p;
+
if (!strcmp(var, "help.autocorrect"))
autocorrect = git_config_int(var,value);
/* Also use aliases for command lookup */
- if (starts_with(var, "alias."))
- add_cmdname(&aliases, var + 6, strlen(var + 6));
+ if (skip_prefix(var, "alias.", &p))
+ add_cmdname(&aliases, p, strlen(p));
return git_default_config(var, value, cb);
}
diff --git a/http-backend.c b/http-backend.c
index d2c0a62..57290d9 100644
--- a/http-backend.c
+++ b/http-backend.c
@@ -221,17 +221,19 @@ static void get_idx_file(char *name)
static int http_config(const char *var, const char *value, void *cb)
{
+ const char *p;
+
if (!strcmp(var, "http.getanyfile")) {
getanyfile = git_config_bool(var, value);
return 0;
}
- if (starts_with(var, "http.")) {
+ if (skip_prefix(var, "http.", &p)) {
int i;
for (i = 0; i < ARRAY_SIZE(rpc_service); i++) {
struct rpc_service *svc = &rpc_service[i];
- if (!strcmp(var + 5, svc->config_name)) {
+ if (!strcmp(p, svc->config_name)) {
svc->enabled = git_config_bool(var, value);
return 0;
}
@@ -244,15 +246,16 @@ static int http_config(const char *var, const char *value, void *cb)
static struct rpc_service *select_service(const char *name)
{
+ const char *svc_name;
struct rpc_service *svc = NULL;
int i;
- if (!starts_with(name, "git-"))
+ if (!skip_prefix(name, "git-", &svc_name))
forbidden("Unsupported service: '%s'", name);
for (i = 0; i < ARRAY_SIZE(rpc_service); i++) {
struct rpc_service *s = &rpc_service[i];
- if (!strcmp(s->name, name + 4)) {
+ if (!strcmp(s->name, svc_name)) {
svc = s;
break;
}
diff --git a/http-push.c b/http-push.c
index de00d16..26dfa67 100644
--- a/http-push.c
+++ b/http-push.c
@@ -770,9 +770,9 @@ static void handle_new_lock_ctx(struct xml_ctx *ctx, int tag_closed)
lock->owner = xmalloc(strlen(ctx->cdata) + 1);
strcpy(lock->owner, ctx->cdata);
} else if (!strcmp(ctx->name, DAV_ACTIVELOCK_TIMEOUT)) {
- if (starts_with(ctx->cdata, "Second-"))
- lock->timeout =
- strtol(ctx->cdata + 7, NULL, 10);
+ const char *arg;
+ if (skip_prefix(ctx->cdata, "Second-", &arg))
+ lock->timeout = strtol(arg, NULL, 10);
} else if (!strcmp(ctx->name, DAV_ACTIVELOCK_TOKEN)) {
lock->token = xmalloc(strlen(ctx->cdata) + 1);
strcpy(lock->token, ctx->cdata);
@@ -1561,6 +1561,7 @@ static void fetch_symref(const char *path, char **symref, unsigned char *sha1)
{
char *url;
struct strbuf buffer = STRBUF_INIT;
+ const char *name;
url = xmalloc(strlen(repo->url) + strlen(path) + 1);
sprintf(url, "%s%s", repo->url, path);
@@ -1578,8 +1579,8 @@ static void fetch_symref(const char *path, char **symref, unsigned char *sha1)
return;
/* If it's a symref, set the refname; otherwise try for a sha1 */
- if (starts_with((char *)buffer.buf, "ref: ")) {
- *symref = xmemdupz((char *)buffer.buf + 5, buffer.len - 6);
+ if (skip_prefix(buffer.buf, "ref: ", &name)) {
+ *symref = xmemdupz(name, buffer.len - (name - buffer.buf));
} else {
get_sha1_hex(buffer.buf, sha1);
}
--
2.0.0.566.gfe3e6b2
--
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