SYNOPSIS
--------
-'git mktree' [-z]
+'git mktree' [-z] [--missing] [--batch]
DESCRIPTION
-----------
-Reads standard input in non-recursive `ls-tree` output format,
-and creates a tree object. The object name of the tree object
+Reads standard input in non-recursive `ls-tree` output format, and creates
+a tree object. The order of the tree entries is normalised by mktree so
+pre-sorting the input is not required. The object name of the tree object
built is written to the standard output.
OPTIONS
-z::
Read the NUL-terminated `ls-tree -z` output instead.
+--missing::
+ Allow missing objects. The default behaviour (without this option)
+ is to verify that each tree entry's sha1 identifies an existing
+ object. This option has no effect on the treatment of gitlink entries
+ (aka "submodules") which are always allowed to be missing.
+
+--batch::
+ Allow building of more than one tree object before exiting. Each
+ tree is separated by as single blank line. The final new-line is
+ optional. Note - if the '-z' option is used, lines are terminated
+ with NUL.
+
Author
------
Written by Junio C Hamano <gitster@pobox.com>
PROGRAMS += git-merge-index$X
PROGRAMS += git-merge-tree$X
PROGRAMS += git-mktag$X
-PROGRAMS += git-mktree$X
PROGRAMS += git-pack-redundant$X
PROGRAMS += git-patch-id$X
PROGRAMS += git-shell$X
BUILTIN_OBJS += builtin-merge-file.o
BUILTIN_OBJS += builtin-merge-ours.o
BUILTIN_OBJS += builtin-merge-recursive.o
+BUILTIN_OBJS += builtin-mktree.o
BUILTIN_OBJS += builtin-mv.o
BUILTIN_OBJS += builtin-name-rev.o
BUILTIN_OBJS += builtin-pack-objects.o
--- /dev/null
+/*
+ * GIT - the stupid content tracker
+ *
+ * Copyright (c) Junio C Hamano, 2006, 2009
+ */
+#include "builtin.h"
+#include "quote.h"
+#include "tree.h"
+#include "parse-options.h"
+
+static struct treeent {
+ unsigned mode;
+ unsigned char sha1[20];
+ int len;
+ char name[FLEX_ARRAY];
+} **entries;
+static int alloc, used;
+
+static void append_to_tree(unsigned mode, unsigned char *sha1, char *path)
+{
+ struct treeent *ent;
+ int len = strlen(path);
+ if (strchr(path, '/'))
+ die("path %s contains slash", path);
+
+ if (alloc <= used) {
+ alloc = alloc_nr(used);
+ entries = xrealloc(entries, sizeof(*entries) * alloc);
+ }
+ ent = entries[used++] = xmalloc(sizeof(**entries) + len + 1);
+ ent->mode = mode;
+ ent->len = len;
+ hashcpy(ent->sha1, sha1);
+ memcpy(ent->name, path, len+1);
+}
+
+static int ent_compare(const void *a_, const void *b_)
+{
+ struct treeent *a = *(struct treeent **)a_;
+ struct treeent *b = *(struct treeent **)b_;
+ return base_name_compare(a->name, a->len, a->mode,
+ b->name, b->len, b->mode);
+}
+
+static void write_tree(unsigned char *sha1)
+{
+ struct strbuf buf;
+ size_t size;
+ int i;
+
+ qsort(entries, used, sizeof(*entries), ent_compare);
+ for (size = i = 0; i < used; i++)
+ size += 32 + entries[i]->len;
+
+ strbuf_init(&buf, size);
+ for (i = 0; i < used; i++) {
+ struct treeent *ent = entries[i];
+ strbuf_addf(&buf, "%o %s%c", ent->mode, ent->name, '\0');
+ strbuf_add(&buf, ent->sha1, 20);
+ }
+
+ write_sha1_file(buf.buf, buf.len, tree_type, sha1);
+}
+
+static const char *mktree_usage[] = {
+ "git mktree [-z] [--missing] [--batch]",
+ NULL
+};
+
+static void mktree_line(char *buf, size_t len, int line_termination, int allow_missing)
+{
+ char *ptr, *ntr;
+ unsigned mode;
+ enum object_type mode_type; /* object type derived from mode */
+ enum object_type obj_type; /* object type derived from sha */
+ char *path;
+ unsigned char sha1[20];
+
+ ptr = buf;
+ /*
+ * Read non-recursive ls-tree output format:
+ * mode SP type SP sha1 TAB name
+ */
+ mode = strtoul(ptr, &ntr, 8);
+ if (ptr == ntr || !ntr || *ntr != ' ')
+ die("input format error: %s", buf);
+ ptr = ntr + 1; /* type */
+ ntr = strchr(ptr, ' ');
+ if (!ntr || buf + len <= ntr + 40 ||
+ ntr[41] != '\t' ||
+ get_sha1_hex(ntr + 1, sha1))
+ die("input format error: %s", buf);
+
+ /* It is perfectly normal if we do not have a commit from a submodule */
+ if (S_ISGITLINK(mode))
+ allow_missing = 1;
+
+
+ *ntr++ = 0; /* now at the beginning of SHA1 */
+
+ path = ntr + 41; /* at the beginning of name */
+ if (line_termination && path[0] == '"') {
+ struct strbuf p_uq = STRBUF_INIT;
+ if (unquote_c_style(&p_uq, path, NULL))
+ die("invalid quoting");
+ path = strbuf_detach(&p_uq, NULL);
+ }
+
+ /*
+ * Object type is redundantly derivable three ways.
+ * These should all agree.
+ */
+ mode_type = object_type(mode);
+ if (mode_type != type_from_string(ptr)) {
+ die("entry '%s' object type (%s) doesn't match mode type (%s)",
+ path, ptr, typename(mode_type));
+ }
+
+ /* Check the type of object identified by sha1 */
+ obj_type = sha1_object_info(sha1, NULL);
+ if (obj_type < 0) {
+ if (allow_missing) {
+ ; /* no problem - missing objects are presumed to be of the right type */
+ } else {
+ die("entry '%s' object %s is unavailable", path, sha1_to_hex(sha1));
+ }
+ } else {
+ if (obj_type != mode_type) {
+ /*
+ * The object exists but is of the wrong type.
+ * This is a problem regardless of allow_missing
+ * because the new tree entry will never be correct.
+ */
+ die("entry '%s' object %s is a %s but specified type was (%s)",
+ path, sha1_to_hex(sha1), typename(obj_type), typename(mode_type));
+ }
+ }
+
+ append_to_tree(mode, sha1, path);
+}
+
+int cmd_mktree(int ac, const char **av, const char *prefix)
+{
+ struct strbuf sb = STRBUF_INIT;
+ unsigned char sha1[20];
+ int line_termination = '\n';
+ int allow_missing = 0;
+ int is_batch_mode = 0;
+ int got_eof = 0;
+
+ const struct option option[] = {
+ OPT_SET_INT('z', NULL, &line_termination, "input is NUL terminated", '\0'),
+ OPT_SET_INT( 0 , "missing", &allow_missing, "allow missing objects", 1),
+ OPT_SET_INT( 0 , "batch", &is_batch_mode, "allow creation of more than one tree", 1),
+ OPT_END()
+ };
+
+ ac = parse_options(ac, av, option, mktree_usage, 0);
+
+ while (!got_eof) {
+ while (1) {
+ if (strbuf_getline(&sb, stdin, line_termination) == EOF) {
+ got_eof = 1;
+ break;
+ }
+ if (sb.buf[0] == '\0') {
+ /* empty lines denote tree boundaries in batch mode */
+ if (is_batch_mode)
+ break;
+ die("input format error: (blank line only valid in batch mode)");
+ }
+ mktree_line(sb.buf, sb.len, line_termination, allow_missing);
+ }
+ if (is_batch_mode && got_eof && used < 1) {
+ /*
+ * Execution gets here if the last tree entry is terminated with a
+ * new-line. The final new-line has been made optional to be
+ * consistent with the original non-batch behaviour of mktree.
+ */
+ ; /* skip creating an empty tree */
+ } else {
+ write_tree(sha1);
+ puts(sha1_to_hex(sha1));
+ fflush(stdout);
+ }
+ used=0; /* reset tree entry buffer for re-use in batch mode */
+ }
+ strbuf_release(&sb);
+ exit(0);
+}
extern int cmd_merge_ours(int argc, const char **argv, const char *prefix);
extern int cmd_merge_file(int argc, const char **argv, const char *prefix);
extern int cmd_merge_recursive(int argc, const char **argv, const char *prefix);
+extern int cmd_mktree(int argc, const char **argv, const char *prefix);
extern int cmd_mv(int argc, const char **argv, const char *prefix);
extern int cmd_name_rev(int argc, const char **argv, const char *prefix);
extern int cmd_pack_objects(int argc, const char **argv, const char *prefix);
{ "merge-ours", cmd_merge_ours, RUN_SETUP },
{ "merge-recursive", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE },
{ "merge-subtree", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE },
+ { "mktree", cmd_mktree, RUN_SETUP },
{ "mv", cmd_mv, RUN_SETUP | NEED_WORK_TREE },
{ "name-rev", cmd_name_rev, RUN_SETUP },
{ "pack-objects", cmd_pack_objects, RUN_SETUP },
+++ /dev/null
-/*
- * GIT - the stupid content tracker
- *
- * Copyright (c) Junio C Hamano, 2006
- */
-#include "cache.h"
-#include "quote.h"
-#include "tree.h"
-#include "exec_cmd.h"
-
-static struct treeent {
- unsigned mode;
- unsigned char sha1[20];
- int len;
- char name[FLEX_ARRAY];
-} **entries;
-static int alloc, used;
-
-static void append_to_tree(unsigned mode, unsigned char *sha1, char *path)
-{
- struct treeent *ent;
- int len = strlen(path);
- if (strchr(path, '/'))
- die("path %s contains slash", path);
-
- if (alloc <= used) {
- alloc = alloc_nr(used);
- entries = xrealloc(entries, sizeof(*entries) * alloc);
- }
- ent = entries[used++] = xmalloc(sizeof(**entries) + len + 1);
- ent->mode = mode;
- ent->len = len;
- hashcpy(ent->sha1, sha1);
- memcpy(ent->name, path, len+1);
-}
-
-static int ent_compare(const void *a_, const void *b_)
-{
- struct treeent *a = *(struct treeent **)a_;
- struct treeent *b = *(struct treeent **)b_;
- return base_name_compare(a->name, a->len, a->mode,
- b->name, b->len, b->mode);
-}
-
-static void write_tree(unsigned char *sha1)
-{
- struct strbuf buf;
- size_t size;
- int i;
-
- qsort(entries, used, sizeof(*entries), ent_compare);
- for (size = i = 0; i < used; i++)
- size += 32 + entries[i]->len;
-
- strbuf_init(&buf, size);
- for (i = 0; i < used; i++) {
- struct treeent *ent = entries[i];
- strbuf_addf(&buf, "%o %s%c", ent->mode, ent->name, '\0');
- strbuf_add(&buf, ent->sha1, 20);
- }
-
- write_sha1_file(buf.buf, buf.len, tree_type, sha1);
-}
-
-static const char mktree_usage[] = "git mktree [-z]";
-
-int main(int ac, char **av)
-{
- struct strbuf sb = STRBUF_INIT;
- struct strbuf p_uq = STRBUF_INIT;
- unsigned char sha1[20];
- int line_termination = '\n';
-
- git_extract_argv0_path(av[0]);
-
- setup_git_directory();
-
- while ((1 < ac) && av[1][0] == '-') {
- char *arg = av[1];
- if (!strcmp("-z", arg))
- line_termination = 0;
- else
- usage(mktree_usage);
- ac--;
- av++;
- }
-
- while (strbuf_getline(&sb, stdin, line_termination) != EOF) {
- char *ptr, *ntr;
- unsigned mode;
- enum object_type type;
- char *path;
-
- ptr = sb.buf;
- /* Input is non-recursive ls-tree output format
- * mode SP type SP sha1 TAB name
- */
- mode = strtoul(ptr, &ntr, 8);
- if (ptr == ntr || !ntr || *ntr != ' ')
- die("input format error: %s", sb.buf);
- ptr = ntr + 1; /* type */
- ntr = strchr(ptr, ' ');
- if (!ntr || sb.buf + sb.len <= ntr + 40 ||
- ntr[41] != '\t' ||
- get_sha1_hex(ntr + 1, sha1))
- die("input format error: %s", sb.buf);
- type = sha1_object_info(sha1, NULL);
- if (type < 0)
- die("object %s unavailable", sha1_to_hex(sha1));
- *ntr++ = 0; /* now at the beginning of SHA1 */
- if (type != type_from_string(ptr))
- die("object type %s mismatch (%s)", ptr, typename(type));
-
- path = ntr + 41; /* at the beginning of name */
- if (line_termination && path[0] == '"') {
- strbuf_reset(&p_uq);
- if (unquote_c_style(&p_uq, path, NULL)) {
- die("invalid quoting");
- }
- path = p_uq.buf;
- }
-
- append_to_tree(mode, sha1, path);
- }
- strbuf_release(&p_uq);
- strbuf_release(&sb);
-
- write_tree(sha1);
- puts(sha1_to_hex(sha1));
- exit(0);
-}
--- /dev/null
+#!/bin/sh
+
+test_description='git mktree'
+
+. ./test-lib.sh
+
+test_expect_success setup '
+ for d in a a. a0
+ do
+ mkdir "$d" && echo "$d/one" >"$d/one" &&
+ git add "$d"
+ done &&
+ echo zero >one &&
+ git update-index --add --info-only one &&
+ git write-tree --missing-ok >tree.missing &&
+ git ls-tree $(cat tree.missing) >top.missing &&
+ git ls-tree -r $(cat tree.missing) >all.missing &&
+ echo one >one &&
+ git add one &&
+ git write-tree >tree &&
+ git ls-tree $(cat tree) >top &&
+ git ls-tree -r $(cat tree) >all &&
+ test_tick &&
+ git commit -q -m one &&
+ H=$(git rev-parse HEAD) &&
+ git update-index --add --cacheinfo 160000 $H sub &&
+ test_tick &&
+ git commit -q -m two &&
+ git rev-parse HEAD^{tree} >tree.withsub &&
+ git ls-tree HEAD >top.withsub &&
+ git ls-tree -r HEAD >all.withsub
+'
+
+test_expect_success 'ls-tree piped to mktree (1)' '
+ git mktree <top >actual &&
+ test_cmp tree actual
+'
+
+test_expect_success 'ls-tree piped to mktree (2)' '
+ git mktree <top.withsub >actual &&
+ test_cmp tree.withsub actual
+'
+
+test_expect_success 'ls-tree output in wrong order given to mktree (1)' '
+ perl -e "print reverse <>" <top |
+ git mktree >actual &&
+ test_cmp tree actual
+'
+
+test_expect_success 'ls-tree output in wrong order given to mktree (2)' '
+ perl -e "print reverse <>" <top.withsub |
+ git mktree >actual &&
+ test_cmp tree.withsub actual
+'
+
+test_expect_success 'allow missing object with --missing' '
+ git mktree --missing <top.missing >actual &&
+ test_cmp tree.missing actual
+'
+
+test_expect_failure 'mktree reads ls-tree -r output (1)' '
+ git mktree <all >actual &&
+ test_cmp tree actual
+'
+
+test_expect_failure 'mktree reads ls-tree -r output (2)' '
+ git mktree <all.withsub >actual &&
+ test_cmp tree.withsub actual
+'
+
+test_done
projects / thirdparty / git.git / commitdiff
