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-rw-r--r--t/helper/.gitignore4
-rw-r--r--t/helper/test-config.c15
-rw-r--r--t/helper/test-lazy-init-name-hash.c264
-rw-r--r--t/helper/test-online-cpus.c8
-rw-r--r--t/helper/test-read-cache.c1
-rw-r--r--t/helper/test-ref-store.c277
-rw-r--r--t/helper/test-scrap-cache-tree.c2
-rw-r--r--t/helper/test-sha1-array.c20
-rw-r--r--t/helper/test-strcmp-offset.c22
-rw-r--r--t/helper/test-string-list.c25
10 files changed, 627 insertions, 11 deletions
diff --git a/t/helper/.gitignore b/t/helper/.gitignore
index d6e8b36798..721650256e 100644
--- a/t/helper/.gitignore
+++ b/t/helper/.gitignore
@@ -11,20 +11,24 @@
/test-genrandom
/test-hashmap
/test-index-version
+/test-lazy-init-name-hash
/test-line-buffer
/test-match-trees
/test-mergesort
/test-mktemp
+/test-online-cpus
/test-parse-options
/test-path-utils
/test-prio-queue
/test-read-cache
+/test-ref-store
/test-regex
/test-revision-walking
/test-run-command
/test-sha1
/test-sha1-array
/test-sigchain
+/test-strcmp-offset
/test-string-list
/test-submodule-config
/test-subprocess
diff --git a/t/helper/test-config.c b/t/helper/test-config.c
index 83a4f2ab86..8e3ed6a76c 100644
--- a/t/helper/test-config.c
+++ b/t/helper/test-config.c
@@ -66,6 +66,16 @@ static int iterate_cb(const char *var, const char *value, void *data)
return 0;
}
+static int early_config_cb(const char *var, const char *value, void *vdata)
+{
+ const char *key = vdata;
+
+ if (!strcmp(key, var))
+ printf("%s\n", value);
+
+ return 0;
+}
+
int cmd_main(int argc, const char **argv)
{
int i, val;
@@ -73,6 +83,11 @@ int cmd_main(int argc, const char **argv)
const struct string_list *strptr;
struct config_set cs;
+ if (argc == 3 && !strcmp(argv[1], "read_early_config")) {
+ read_early_config(early_config_cb, (void *)argv[2]);
+ return 0;
+ }
+
setup_git_directory();
git_configset_init(&cs);
diff --git a/t/helper/test-lazy-init-name-hash.c b/t/helper/test-lazy-init-name-hash.c
new file mode 100644
index 0000000000..6368a89345
--- /dev/null
+++ b/t/helper/test-lazy-init-name-hash.c
@@ -0,0 +1,264 @@
+#include "cache.h"
+#include "parse-options.h"
+
+static int single;
+static int multi;
+static int count = 1;
+static int dump;
+static int perf;
+static int analyze;
+static int analyze_step;
+
+/*
+ * Dump the contents of the "dir" and "name" hash tables to stdout.
+ * If you sort the result, you can compare it with the other type
+ * mode and verify that both single and multi produce the same set.
+ */
+static void dump_run(void)
+{
+ struct hashmap_iter iter_dir;
+ struct hashmap_iter iter_cache;
+
+ /* Stolen from name-hash.c */
+ struct dir_entry {
+ struct hashmap_entry ent;
+ struct dir_entry *parent;
+ int nr;
+ unsigned int namelen;
+ char name[FLEX_ARRAY];
+ };
+
+ struct dir_entry *dir;
+ struct cache_entry *ce;
+
+ read_cache();
+ if (single) {
+ test_lazy_init_name_hash(&the_index, 0);
+ } else {
+ int nr_threads_used = test_lazy_init_name_hash(&the_index, 1);
+ if (!nr_threads_used)
+ die("non-threaded code path used");
+ }
+
+ dir = hashmap_iter_first(&the_index.dir_hash, &iter_dir);
+ while (dir) {
+ printf("dir %08x %7d %s\n", dir->ent.hash, dir->nr, dir->name);
+ dir = hashmap_iter_next(&iter_dir);
+ }
+
+ ce = hashmap_iter_first(&the_index.name_hash, &iter_cache);
+ while (ce) {
+ printf("name %08x %s\n", ce->ent.hash, ce->name);
+ ce = hashmap_iter_next(&iter_cache);
+ }
+
+ discard_cache();
+}
+
+/*
+ * Run the single or multi threaded version "count" times and
+ * report on the time taken.
+ */
+static uint64_t time_runs(int try_threaded)
+{
+ uint64_t t0, t1, t2;
+ uint64_t sum = 0;
+ uint64_t avg;
+ int nr_threads_used;
+ int i;
+
+ for (i = 0; i < count; i++) {
+ t0 = getnanotime();
+ read_cache();
+ t1 = getnanotime();
+ nr_threads_used = test_lazy_init_name_hash(&the_index, try_threaded);
+ t2 = getnanotime();
+
+ sum += (t2 - t1);
+
+ if (try_threaded && !nr_threads_used)
+ die("non-threaded code path used");
+
+ if (nr_threads_used)
+ printf("%f %f %d multi %d\n",
+ ((double)(t1 - t0))/1000000000,
+ ((double)(t2 - t1))/1000000000,
+ the_index.cache_nr,
+ nr_threads_used);
+ else
+ printf("%f %f %d single\n",
+ ((double)(t1 - t0))/1000000000,
+ ((double)(t2 - t1))/1000000000,
+ the_index.cache_nr);
+ fflush(stdout);
+
+ discard_cache();
+ }
+
+ avg = sum / count;
+ if (count > 1)
+ printf("avg %f %s\n",
+ (double)avg/1000000000,
+ (try_threaded) ? "multi" : "single");
+
+ return avg;
+}
+
+/*
+ * Try a series of runs varying the "istate->cache_nr" and
+ * try to find a good value for the multi-threaded criteria.
+ */
+static void analyze_run(void)
+{
+ uint64_t t1s, t1m, t2s, t2m;
+ int cache_nr_limit;
+ int nr_threads_used;
+ int i;
+ int nr;
+
+ read_cache();
+ cache_nr_limit = the_index.cache_nr;
+ discard_cache();
+
+ nr = analyze;
+ while (1) {
+ uint64_t sum_single = 0;
+ uint64_t sum_multi = 0;
+ uint64_t avg_single;
+ uint64_t avg_multi;
+
+ if (nr > cache_nr_limit)
+ nr = cache_nr_limit;
+
+ for (i = 0; i < count; i++) {
+ read_cache();
+ the_index.cache_nr = nr; /* cheap truncate of index */
+ t1s = getnanotime();
+ test_lazy_init_name_hash(&the_index, 0);
+ t2s = getnanotime();
+ sum_single += (t2s - t1s);
+ the_index.cache_nr = cache_nr_limit;
+ discard_cache();
+
+ read_cache();
+ the_index.cache_nr = nr; /* cheap truncate of index */
+ t1m = getnanotime();
+ nr_threads_used = test_lazy_init_name_hash(&the_index, 1);
+ t2m = getnanotime();
+ sum_multi += (t2m - t1m);
+ the_index.cache_nr = cache_nr_limit;
+ discard_cache();
+
+ if (!nr_threads_used)
+ printf(" [size %8d] [single %f] non-threaded code path used\n",
+ nr, ((double)(t2s - t1s))/1000000000);
+ else
+ printf(" [size %8d] [single %f] %c [multi %f %d]\n",
+ nr,
+ ((double)(t2s - t1s))/1000000000,
+ (((t2s - t1s) < (t2m - t1m)) ? '<' : '>'),
+ ((double)(t2m - t1m))/1000000000,
+ nr_threads_used);
+ fflush(stdout);
+ }
+ if (count > 1) {
+ avg_single = sum_single / count;
+ avg_multi = sum_multi / count;
+ if (!nr_threads_used)
+ printf("avg [size %8d] [single %f]\n",
+ nr,
+ (double)avg_single/1000000000);
+ else
+ printf("avg [size %8d] [single %f] %c [multi %f %d]\n",
+ nr,
+ (double)avg_single/1000000000,
+ (avg_single < avg_multi ? '<' : '>'),
+ (double)avg_multi/1000000000,
+ nr_threads_used);
+ fflush(stdout);
+ }
+
+ if (nr >= cache_nr_limit)
+ return;
+ nr += analyze_step;
+ }
+}
+
+int cmd_main(int argc, const char **argv)
+{
+ const char *usage[] = {
+ "test-lazy-init-name-hash -d (-s | -m)",
+ "test-lazy-init-name-hash -p [-c c]",
+ "test-lazy-init-name-hash -a a [--step s] [-c c]",
+ "test-lazy-init-name-hash (-s | -m) [-c c]",
+ "test-lazy-init-name-hash -s -m [-c c]",
+ NULL
+ };
+ struct option options[] = {
+ OPT_BOOL('s', "single", &single, "run single-threaded code"),
+ OPT_BOOL('m', "multi", &multi, "run multi-threaded code"),
+ OPT_INTEGER('c', "count", &count, "number of passes"),
+ OPT_BOOL('d', "dump", &dump, "dump hash tables"),
+ OPT_BOOL('p', "perf", &perf, "compare single vs multi"),
+ OPT_INTEGER('a', "analyze", &analyze, "analyze different multi sizes"),
+ OPT_INTEGER(0, "step", &analyze_step, "analyze step factor"),
+ OPT_END(),
+ };
+ const char *prefix;
+ uint64_t avg_single, avg_multi;
+
+ prefix = setup_git_directory();
+
+ argc = parse_options(argc, argv, prefix, options, usage, 0);
+
+ /*
+ * istate->dir_hash is only created when ignore_case is set.
+ */
+ ignore_case = 1;
+
+ if (dump) {
+ if (perf || analyze > 0)
+ die("cannot combine dump, perf, or analyze");
+ if (count > 1)
+ die("count not valid with dump");
+ if (single && multi)
+ die("cannot use both single and multi with dump");
+ if (!single && !multi)
+ die("dump requires either single or multi");
+ dump_run();
+ return 0;
+ }
+
+ if (perf) {
+ if (analyze > 0)
+ die("cannot combine dump, perf, or analyze");
+ if (single || multi)
+ die("cannot use single or multi with perf");
+ avg_single = time_runs(0);
+ avg_multi = time_runs(1);
+ if (avg_multi > avg_single)
+ die("multi is slower");
+ return 0;
+ }
+
+ if (analyze) {
+ if (analyze < 500)
+ die("analyze must be at least 500");
+ if (!analyze_step)
+ analyze_step = analyze;
+ if (single || multi)
+ die("cannot use single or multi with analyze");
+ analyze_run();
+ return 0;
+ }
+
+ if (!single && !multi)
+ die("require either -s or -m or both");
+
+ if (single)
+ time_runs(0);
+ if (multi)
+ time_runs(1);
+
+ return 0;
+}
diff --git a/t/helper/test-online-cpus.c b/t/helper/test-online-cpus.c
new file mode 100644
index 0000000000..06c09c6b88
--- /dev/null
+++ b/t/helper/test-online-cpus.c
@@ -0,0 +1,8 @@
+#include "git-compat-util.h"
+#include "thread-utils.h"
+
+int cmd_main(int argc, const char **argv)
+{
+ printf("%d\n", online_cpus());
+ return 0;
+}
diff --git a/t/helper/test-read-cache.c b/t/helper/test-read-cache.c
index 2a7990efc3..48255eef31 100644
--- a/t/helper/test-read-cache.c
+++ b/t/helper/test-read-cache.c
@@ -5,6 +5,7 @@ int cmd_main(int argc, const char **argv)
int i, cnt = 1;
if (argc == 2)
cnt = strtol(argv[1], NULL, 0);
+ setup_git_directory();
for (i = 0; i < cnt; i++) {
read_cache();
discard_cache();
diff --git a/t/helper/test-ref-store.c b/t/helper/test-ref-store.c
new file mode 100644
index 0000000000..2d84c45ffe
--- /dev/null
+++ b/t/helper/test-ref-store.c
@@ -0,0 +1,277 @@
+#include "cache.h"
+#include "refs.h"
+
+static const char *notnull(const char *arg, const char *name)
+{
+ if (!arg)
+ die("%s required", name);
+ return arg;
+}
+
+static unsigned int arg_flags(const char *arg, const char *name)
+{
+ return atoi(notnull(arg, name));
+}
+
+static const char **get_store(const char **argv, struct ref_store **refs)
+{
+ const char *gitdir;
+
+ if (!argv[0]) {
+ die("ref store required");
+ } else if (!strcmp(argv[0], "main")) {
+ *refs = get_main_ref_store();
+ } else if (skip_prefix(argv[0], "submodule:", &gitdir)) {
+ struct strbuf sb = STRBUF_INIT;
+ int ret;
+
+ ret = strbuf_git_path_submodule(&sb, gitdir, "objects/");
+ if (ret)
+ die("strbuf_git_path_submodule failed: %d", ret);
+ add_to_alternates_memory(sb.buf);
+ strbuf_release(&sb);
+
+ *refs = get_submodule_ref_store(gitdir);
+ } else
+ die("unknown backend %s", argv[0]);
+
+ if (!*refs)
+ die("no ref store");
+
+ /* consume store-specific optional arguments if needed */
+
+ return argv + 1;
+}
+
+
+static int cmd_pack_refs(struct ref_store *refs, const char **argv)
+{
+ unsigned int flags = arg_flags(*argv++, "flags");
+
+ return refs_pack_refs(refs, flags);
+}
+
+static int cmd_peel_ref(struct ref_store *refs, const char **argv)
+{
+ const char *refname = notnull(*argv++, "refname");
+ unsigned char sha1[20];
+ int ret;
+
+ ret = refs_peel_ref(refs, refname, sha1);
+ if (!ret)
+ puts(sha1_to_hex(sha1));
+ return ret;
+}
+
+static int cmd_create_symref(struct ref_store *refs, const char **argv)
+{
+ const char *refname = notnull(*argv++, "refname");
+ const char *target = notnull(*argv++, "target");
+ const char *logmsg = *argv++;
+
+ return refs_create_symref(refs, refname, target, logmsg);
+}
+
+static int cmd_delete_refs(struct ref_store *refs, const char **argv)
+{
+ unsigned int flags = arg_flags(*argv++, "flags");
+ struct string_list refnames = STRING_LIST_INIT_NODUP;
+
+ while (*argv)
+ string_list_append(&refnames, *argv++);
+
+ return refs_delete_refs(refs, &refnames, flags);
+}
+
+static int cmd_rename_ref(struct ref_store *refs, const char **argv)
+{
+ const char *oldref = notnull(*argv++, "oldref");
+ const char *newref = notnull(*argv++, "newref");
+ const char *logmsg = *argv++;
+
+ return refs_rename_ref(refs, oldref, newref, logmsg);
+}
+
+static int each_ref(const char *refname, const struct object_id *oid,
+ int flags, void *cb_data)
+{
+ printf("%s %s 0x%x\n", oid_to_hex(oid), refname, flags);
+ return 0;
+}
+
+static int cmd_for_each_ref(struct ref_store *refs, const char **argv)
+{
+ const char *prefix = notnull(*argv++, "prefix");
+
+ return refs_for_each_ref_in(refs, prefix, each_ref, NULL);
+}
+
+static int cmd_resolve_ref(struct ref_store *refs, const char **argv)
+{
+ unsigned char sha1[20];
+ const char *refname = notnull(*argv++, "refname");
+ int resolve_flags = arg_flags(*argv++, "resolve-flags");
+ int flags;
+ const char *ref;
+
+ ref = refs_resolve_ref_unsafe(refs, refname, resolve_flags,
+ sha1, &flags);
+ printf("%s %s 0x%x\n", sha1_to_hex(sha1), ref, flags);
+ return ref ? 0 : 1;
+}
+
+static int cmd_verify_ref(struct ref_store *refs, const char **argv)
+{
+ const char *refname = notnull(*argv++, "refname");
+ struct strbuf err = STRBUF_INIT;
+ int ret;
+
+ ret = refs_verify_refname_available(refs, refname, NULL, NULL, &err);
+ if (err.len)
+ puts(err.buf);
+ return ret;
+}
+
+static int cmd_for_each_reflog(struct ref_store *refs, const char **argv)
+{
+ return refs_for_each_reflog(refs, each_ref, NULL);
+}
+
+static int each_reflog(struct object_id *old_oid, struct object_id *new_oid,
+ const char *committer, unsigned long timestamp,
+ int tz, const char *msg, void *cb_data)
+{
+ printf("%s %s %s %lu %d %s\n",
+ oid_to_hex(old_oid), oid_to_hex(new_oid),
+ committer, timestamp, tz, msg);
+ return 0;
+}
+
+static int cmd_for_each_reflog_ent(struct ref_store *refs, const char **argv)
+{
+ const char *refname = notnull(*argv++, "refname");
+
+ return refs_for_each_reflog_ent(refs, refname, each_reflog, refs);
+}
+
+static int cmd_for_each_reflog_ent_reverse(struct ref_store *refs, const char **argv)
+{
+ const char *refname = notnull(*argv++, "refname");
+
+ return refs_for_each_reflog_ent_reverse(refs, refname, each_reflog, refs);
+}
+
+static int cmd_reflog_exists(struct ref_store *refs, const char **argv)
+{
+ const char *refname = notnull(*argv++, "refname");
+
+ return !refs_reflog_exists(refs, refname);
+}
+
+static int cmd_create_reflog(struct ref_store *refs, const char **argv)
+{
+ const char *refname = notnull(*argv++, "refname");
+ int force_create = arg_flags(*argv++, "force-create");
+ struct strbuf err = STRBUF_INIT;
+ int ret;
+
+ ret = refs_create_reflog(refs, refname, force_create, &err);
+ if (err.len)
+ puts(err.buf);
+ return ret;
+}
+
+static int cmd_delete_reflog(struct ref_store *refs, const char **argv)
+{
+ const char *refname = notnull(*argv++, "refname");
+
+ return refs_delete_reflog(refs, refname);
+}
+
+static int cmd_reflog_expire(struct ref_store *refs, const char **argv)
+{
+ die("not supported yet");
+}
+
+static int cmd_delete_ref(struct ref_store *refs, const char **argv)
+{
+ const char *msg = notnull(*argv++, "msg");
+ const char *refname = notnull(*argv++, "refname");
+ const char *sha1_buf = notnull(*argv++, "old-sha1");
+ unsigned int flags = arg_flags(*argv++, "flags");
+ unsigned char old_sha1[20];
+
+ if (get_sha1_hex(sha1_buf, old_sha1))
+ die("not sha-1");
+
+ return refs_delete_ref(refs, msg, refname, old_sha1, flags);
+}
+
+static int cmd_update_ref(struct ref_store *refs, const char **argv)
+{
+ const char *msg = notnull(*argv++, "msg");
+ const char *refname = notnull(*argv++, "refname");
+ const char *new_sha1_buf = notnull(*argv++, "old-sha1");
+ const char *old_sha1_buf = notnull(*argv++, "old-sha1");
+ unsigned int flags = arg_flags(*argv++, "flags");
+ unsigned char old_sha1[20];
+ unsigned char new_sha1[20];
+
+ if (get_sha1_hex(old_sha1_buf, old_sha1) ||
+ get_sha1_hex(new_sha1_buf, new_sha1))
+ die("not sha-1");
+
+ return refs_update_ref(refs, msg, refname,
+ new_sha1, old_sha1,
+ flags, UPDATE_REFS_DIE_ON_ERR);
+}
+
+struct command {
+ const char *name;
+ int (*func)(struct ref_store *refs, const char **argv);
+};
+
+static struct command commands[] = {
+ { "pack-refs", cmd_pack_refs },
+ { "peel-ref", cmd_peel_ref },
+ { "create-symref", cmd_create_symref },
+ { "delete-refs", cmd_delete_refs },
+ { "rename-ref", cmd_rename_ref },
+ { "for-each-ref", cmd_for_each_ref },
+ { "resolve-ref", cmd_resolve_ref },
+ { "verify-ref", cmd_verify_ref },
+ { "for-each-reflog", cmd_for_each_reflog },
+ { "for-each-reflog-ent", cmd_for_each_reflog_ent },
+ { "for-each-reflog-ent-reverse", cmd_for_each_reflog_ent_reverse },
+ { "reflog-exists", cmd_reflog_exists },
+ { "create-reflog", cmd_create_reflog },
+ { "delete-reflog", cmd_delete_reflog },
+ { "reflog-expire", cmd_reflog_expire },
+ /*
+ * backend transaction functions can't be tested separately
+ */
+ { "delete-ref", cmd_delete_ref },
+ { "update-ref", cmd_update_ref },
+ { NULL, NULL }
+};
+
+int cmd_main(int argc, const char **argv)
+{
+ struct ref_store *refs;
+ const char *func;
+ struct command *cmd;
+
+ setup_git_directory();
+
+ argv = get_store(argv + 1, &refs);
+
+ func = *argv++;
+ if (!func)
+ die("ref function required");
+ for (cmd = commands; cmd->name; cmd++) {
+ if (!strcmp(func, cmd->name))
+ return cmd->func(refs, argv);
+ }
+ die("unknown function %s", func);
+ return 0;
+}
diff --git a/t/helper/test-scrap-cache-tree.c b/t/helper/test-scrap-cache-tree.c
index 27fe0405b8..d2a63bea43 100644
--- a/t/helper/test-scrap-cache-tree.c
+++ b/t/helper/test-scrap-cache-tree.c
@@ -8,7 +8,7 @@ static struct lock_file index_lock;
int cmd_main(int ac, const char **av)
{
setup_git_directory();
- hold_locked_index(&index_lock, 1);
+ hold_locked_index(&index_lock, LOCK_DIE_ON_ERROR);
if (read_cache() < 0)
die("unable to read index file");
active_cache_tree = NULL;
diff --git a/t/helper/test-sha1-array.c b/t/helper/test-sha1-array.c
index f7a53c4ad6..edfd52d82a 100644
--- a/t/helper/test-sha1-array.c
+++ b/t/helper/test-sha1-array.c
@@ -1,33 +1,33 @@
#include "cache.h"
#include "sha1-array.h"
-static int print_sha1(const unsigned char sha1[20], void *data)
+static int print_oid(const struct object_id *oid, void *data)
{
- puts(sha1_to_hex(sha1));
+ puts(oid_to_hex(oid));
return 0;
}
int cmd_main(int argc, const char **argv)
{
- struct sha1_array array = SHA1_ARRAY_INIT;
+ struct oid_array array = OID_ARRAY_INIT;
struct strbuf line = STRBUF_INIT;
while (strbuf_getline(&line, stdin) != EOF) {
const char *arg;
- unsigned char sha1[20];
+ struct object_id oid;
if (skip_prefix(line.buf, "append ", &arg)) {
- if (get_sha1_hex(arg, sha1))
+ if (get_oid_hex(arg, &oid))
die("not a hexadecimal SHA1: %s", arg);
- sha1_array_append(&array, sha1);
+ oid_array_append(&array, &oid);
} else if (skip_prefix(line.buf, "lookup ", &arg)) {
- if (get_sha1_hex(arg, sha1))
+ if (get_oid_hex(arg, &oid))
die("not a hexadecimal SHA1: %s", arg);
- printf("%d\n", sha1_array_lookup(&array, sha1));
+ printf("%d\n", oid_array_lookup(&array, &oid));
} else if (!strcmp(line.buf, "clear"))
- sha1_array_clear(&array);
+ oid_array_clear(&array);
else if (!strcmp(line.buf, "for_each_unique"))
- sha1_array_for_each_unique(&array, print_sha1, NULL);
+ oid_array_for_each_unique(&array, print_oid, NULL);
else
die("unknown command: %s", line.buf);
}
diff --git a/t/helper/test-strcmp-offset.c b/t/helper/test-strcmp-offset.c
new file mode 100644
index 0000000000..4a45a54e92
--- /dev/null
+++ b/t/helper/test-strcmp-offset.c
@@ -0,0 +1,22 @@
+#include "cache.h"
+
+int cmd_main(int argc, const char **argv)
+{
+ int result;
+ size_t offset;
+
+ if (!argv[1] || !argv[2])
+ die("usage: %s <string1> <string2>", argv[0]);
+
+ result = strcmp_offset(argv[1], argv[2], &offset);
+
+ /*
+ * Because differnt CRTs behave differently, only rely on signs
+ * of the result values.
+ */
+ result = (result < 0 ? -1 :
+ result > 0 ? 1 :
+ 0);
+ printf("%d %"PRIuMAX"\n", result, (uintmax_t)offset);
+ return 0;
+}
diff --git a/t/helper/test-string-list.c b/t/helper/test-string-list.c
index 4a68967bd1..c502fa16d3 100644
--- a/t/helper/test-string-list.c
+++ b/t/helper/test-string-list.c
@@ -97,6 +97,31 @@ int cmd_main(int argc, const char **argv)
return 0;
}
+ if (argc == 2 && !strcmp(argv[1], "sort")) {
+ struct string_list list = STRING_LIST_INIT_NODUP;
+ struct strbuf sb = STRBUF_INIT;
+ struct string_list_item *item;
+
+ strbuf_read(&sb, 0, 0);
+
+ /*
+ * Split by newline, but don't create a string_list item
+ * for the empty string after the last separator.
+ */
+ if (sb.buf[sb.len - 1] == '\n')
+ strbuf_setlen(&sb, sb.len - 1);
+ string_list_split_in_place(&list, sb.buf, '\n', -1);
+
+ string_list_sort(&list);
+
+ for_each_string_list_item(item, &list)
+ puts(item->string);
+
+ string_list_clear(&list, 0);
+ strbuf_release(&sb);
+ return 0;
+ }
+
fprintf(stderr, "%s: unknown function name: %s\n", argv[0],
argv[1] ? argv[1] : "(there was none)");
return 1;