diff options
| -rw-r--r-- | .gitignore | 1 | ||||
| -rw-r--r-- | Documentation/technical/api-revision-walking.txt | 5 | ||||
| -rw-r--r-- | Makefile | 1 | ||||
| -rw-r--r-- | object.c | 11 | ||||
| -rw-r--r-- | object.h | 2 | ||||
| -rw-r--r-- | revision.c | 5 | ||||
| -rw-r--r-- | revision.h | 1 | ||||
| -rw-r--r-- | submodule.c | 2 | ||||
| -rwxr-xr-x | t/t0062-revision-walking.sh | 33 | ||||
| -rw-r--r-- | test-revision-walking.c | 66 |
10 files changed, 127 insertions, 0 deletions
diff --git a/.gitignore b/.gitignore index 87fcc5f6ff..382481cd4d 100644 --- a/.gitignore +++ b/.gitignore @@ -183,6 +183,7 @@ /test-mktemp /test-parse-options /test-path-utils +/test-revision-walking /test-run-command /test-sha1 /test-sigchain diff --git a/Documentation/technical/api-revision-walking.txt b/Documentation/technical/api-revision-walking.txt index 996da0503a..b7d0d9a8a7 100644 --- a/Documentation/technical/api-revision-walking.txt +++ b/Documentation/technical/api-revision-walking.txt @@ -56,6 +56,11 @@ function. returning a `struct commit *` each time you call it. The end of the revision list is indicated by returning a NULL pointer. +`reset_revision_walk`:: + + Reset the flags used by the revision walking api. You can use + this to do multiple sequencial revision walks. + Data structures --------------- @@ -479,6 +479,7 @@ TEST_PROGRAMS_NEED_X += test-match-trees TEST_PROGRAMS_NEED_X += test-mktemp TEST_PROGRAMS_NEED_X += test-parse-options TEST_PROGRAMS_NEED_X += test-path-utils +TEST_PROGRAMS_NEED_X += test-revision-walking TEST_PROGRAMS_NEED_X += test-run-command TEST_PROGRAMS_NEED_X += test-sha1 TEST_PROGRAMS_NEED_X += test-sigchain @@ -275,3 +275,14 @@ void object_array_remove_duplicates(struct object_array *array) array->nr = dst; } } + +void clear_object_flags(unsigned flags) +{ + int i; + + for (i=0; i < obj_hash_size; i++) { + struct object *obj = obj_hash[i]; + if (obj) + obj->flags &= ~flags; + } +} @@ -76,4 +76,6 @@ void add_object_array(struct object *obj, const char *name, struct object_array void add_object_array_with_mode(struct object *obj, const char *name, struct object_array *array, unsigned mode); void object_array_remove_duplicates(struct object_array *); +void clear_object_flags(unsigned flags); + #endif /* OBJECT_H */ diff --git a/revision.c b/revision.c index c97d834484..4fbc14b6b4 100644 --- a/revision.c +++ b/revision.c @@ -2061,6 +2061,11 @@ static void set_children(struct rev_info *revs) } } +void reset_revision_walk(void) +{ + clear_object_flags(SEEN | ADDED | SHOWN); +} + int prepare_revision_walk(struct rev_info *revs) { int nr = revs->pending.nr; diff --git a/revision.h b/revision.h index b8e9223954..eb87fd1e2f 100644 --- a/revision.h +++ b/revision.h @@ -192,6 +192,7 @@ extern void parse_revision_opt(struct rev_info *revs, struct parse_opt_ctx_t *ct const char * const usagestr[]); extern int handle_revision_arg(const char *arg, struct rev_info *revs,int flags,int cant_be_filename); +extern void reset_revision_walk(void); extern int prepare_revision_walk(struct rev_info *revs); extern struct commit *get_revision(struct rev_info *revs); extern char *get_revision_mark(const struct rev_info *revs, const struct commit *commit); diff --git a/submodule.c b/submodule.c index 9a28060679..645ff5db0f 100644 --- a/submodule.c +++ b/submodule.c @@ -404,6 +404,7 @@ int check_submodule_needs_pushing(unsigned char new_sha1[20], const char *remote while ((commit = get_revision(&rev)) && !needs_pushing) commit_need_pushing(commit, &needs_pushing); + reset_revision_walk(); free(sha1_copy); strbuf_release(&remotes_arg); @@ -741,6 +742,7 @@ static int find_first_merges(struct object_array *result, const char *path, if (in_merge_bases(b, &commit, 1)) add_object_array(o, NULL, &merges); } + reset_revision_walk(); /* Now we've got all merges that contain a and b. Prune all * merges that contain another found merge and save them in diff --git a/t/t0062-revision-walking.sh b/t/t0062-revision-walking.sh new file mode 100755 index 0000000000..3d98eb847f --- /dev/null +++ b/t/t0062-revision-walking.sh @@ -0,0 +1,33 @@ +#!/bin/sh +# +# Copyright (c) 2012 Heiko Voigt +# + +test_description='Test revision walking api' + +. ./test-lib.sh + +cat >run_twice_expected <<-EOF +1st + > add b + > add a +2nd + > add b + > add a +EOF + +test_expect_success 'setup' ' + echo a > a && + git add a && + git commit -m "add a" && + echo b > b && + git add b && + git commit -m "add b" +' + +test_expect_success 'revision walking can be done twice' ' + test-revision-walking run-twice > run_twice_actual + test_cmp run_twice_expected run_twice_actual +' + +test_done diff --git a/test-revision-walking.c b/test-revision-walking.c new file mode 100644 index 0000000000..3ade02c72d --- /dev/null +++ b/test-revision-walking.c @@ -0,0 +1,66 @@ +/* + * test-revision-walking.c: test revision walking API. + * + * (C) 2012 Heiko Voigt <hvoigt@hvoigt.net> + * + * This code is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include "cache.h" +#include "commit.h" +#include "diff.h" +#include "revision.h" + +static void print_commit(struct commit *commit) +{ + struct strbuf sb = STRBUF_INIT; + struct pretty_print_context ctx = {0}; + ctx.date_mode = DATE_NORMAL; + format_commit_message(commit, " %m %s", &sb, &ctx); + printf("%s\n", sb.buf); + strbuf_release(&sb); +} + +static int run_revision_walk(void) +{ + struct rev_info rev; + struct commit *commit; + const char *argv[] = {NULL, "--all", NULL}; + int argc = ARRAY_SIZE(argv) - 1; + int got_revision = 0; + + init_revisions(&rev, NULL); + setup_revisions(argc, argv, &rev, NULL); + if (prepare_revision_walk(&rev)) + die("revision walk setup failed"); + + while ((commit = get_revision(&rev)) != NULL) { + print_commit(commit); + got_revision = 1; + } + + reset_revision_walk(); + return got_revision; +} + +int main(int argc, char **argv) +{ + if (argc < 2) + return 1; + + if (!strcmp(argv[1], "run-twice")) { + printf("1st\n"); + if (!run_revision_walk()) + return 1; + printf("2nd\n"); + if (!run_revision_walk()) + return 1; + + return 0; + } + + fprintf(stderr, "check usage\n"); + return 1; +} |