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authorLibravatar Elijah Newren <newren@gmail.com>2010-07-17 11:00:51 -0600
committerLibravatar Junio C Hamano <gitster@pobox.com>2010-07-19 11:12:22 -0700
commit7f40ab0916efd56943f55fde71d917433284fef8 (patch)
tree0d1900bf841e341102febfb371a29053a071ec88
parentfast-export: Fix dropping of files with --import-marks and path limiting (diff)
downloadtgif-7f40ab0916efd56943f55fde71d917433284fef8.tar.xz
fast-export: Add a --full-tree option
This option adds symmetry with fast-import, enabling it to also work with complete trees instead of just incremental changes. It works by issuing a 'deleteall' directive with each commit and then listing the full set of files that make up that commit, rather than just showing the list of files that have changed since the (first) parent commit. Note that this functionality is automatically turned on when using --import-marks together with path limiting in order to avoid dropping important but unchanged files. This functionality is desired when using hand-written filters along with 'fast-export | some-filter | fast-import' as it can be easier to write <some-filter> in terms of complete trees than incremental changes. We could avoid the need to add this option by simply always turning it on. While the end result would be identical, it would slow things down slightly by printing many more filenames per commit which goes somewhat against the 'fast' in 'fast-export'. Signed-off-by: Elijah Newren <newren@gmail.com> Acked-by: Sverre Rabbelier <srabbelier@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--Documentation/git-fast-export.txt6
-rw-r--r--builtin/fast-export.c4
-rwxr-xr-xt/t9350-fast-export.sh5
3 files changed, 14 insertions, 1 deletions
diff --git a/Documentation/git-fast-export.txt b/Documentation/git-fast-export.txt
index 98ec6b5871..8a6a3cb255 100644
--- a/Documentation/git-fast-export.txt
+++ b/Documentation/git-fast-export.txt
@@ -90,6 +90,12 @@ marks the same across runs.
resulting stream can only be used by a repository which
already contains the necessary objects.
+--full-tree::
+ This option will cause fast-export to issue a "deleteall"
+ directive for each commit followed by a full list of all files
+ in the commit (as opposed to just listing the files which are
+ different from the commit's first parent).
+
[git-rev-list-args...]::
A list of arguments, acceptable to 'git rev-parse' and
'git rev-list', that specifies the specific objects and references
diff --git a/builtin/fast-export.c b/builtin/fast-export.c
index 25d13a1f5a..8c7760279d 100644
--- a/builtin/fast-export.c
+++ b/builtin/fast-export.c
@@ -27,7 +27,7 @@ static enum { ABORT, VERBATIM, WARN, STRIP } signed_tag_mode = ABORT;
static enum { ERROR, DROP, REWRITE } tag_of_filtered_mode = ABORT;
static int fake_missing_tagger;
static int no_data;
-static int full_tree = 0;
+static int full_tree;
static int parse_opt_signed_tag_mode(const struct option *opt,
const char *arg, int unset)
@@ -588,6 +588,8 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix)
"Import marks from this file"),
OPT_BOOLEAN(0, "fake-missing-tagger", &fake_missing_tagger,
"Fake a tagger when tags lack one"),
+ OPT_BOOLEAN(0, "full-tree", &full_tree,
+ "Output full tree for each commit"),
{ OPTION_NEGBIT, 0, "data", &no_data, NULL,
"Skip output of blob data",
PARSE_OPT_NOARG | PARSE_OPT_NEGHELP, NULL, 1 },
diff --git a/t/t9350-fast-export.sh b/t/t9350-fast-export.sh
index 6069e1f831..d831404fba 100755
--- a/t/t9350-fast-export.sh
+++ b/t/t9350-fast-export.sh
@@ -364,6 +364,11 @@ test_expect_success 'path limiting with import-marks does not lose unmodified fi
git fast-export --import-marks=marks simple -- file file0 | grep file0
'
+test_expect_success 'full-tree re-shows unmodified files' '
+ git checkout -f simple &&
+ test $(git fast-export --full-tree simple | grep -c file0) -eq 3
+'
+
test_expect_success 'set-up a few more tags for tag export tests' '
git checkout -f master &&
HEAD_TREE=`git show -s --pretty=raw HEAD | grep tree | sed "s/tree //"` &&