diff options
| -rw-r--r-- | Documentation/git-fast-import.txt | 4 | ||||
| -rw-r--r-- | fast-import.c | 28 | ||||
| -rwxr-xr-x | t/t9300-fast-import.sh | 66 |
3 files changed, 86 insertions, 12 deletions
diff --git a/Documentation/git-fast-import.txt b/Documentation/git-fast-import.txt index 5d8f60c79..534b2519b 100644 --- a/Documentation/git-fast-import.txt +++ b/Documentation/git-fast-import.txt @@ -912,6 +912,10 @@ output uses the same format as `git cat-file --batch`: <contents> LF ==== +This command can be used anywhere in the stream that comments are +accepted. In particular, the `cat-blob` command can be used in the +middle of a commit but not in the middle of a `data` command. + `feature` ~~~~~~~~~ Require that fast-import supports the specified feature, or abort if diff --git a/fast-import.c b/fast-import.c index dd58f517b..f71ea3e7b 100644 --- a/fast-import.c +++ b/fast-import.c @@ -55,8 +55,6 @@ Format of STDIN stream: ('from' sp committish lf)? lf?; - cat_blob ::= 'cat-blob' sp (hexsha1 | idnum) lf; - checkpoint ::= 'checkpoint' lf lf?; @@ -134,14 +132,17 @@ Format of STDIN stream: ts ::= # time since the epoch in seconds, ascii base10 notation; tz ::= # GIT style timezone; - # note: comments may appear anywhere in the input, except - # within a data command. Any form of the data command - # always escapes the related input from comment processing. + # note: comments and cat requests may appear anywhere + # in the input, except within a data command. Any form + # of the data command always escapes the related input + # from comment processing. # # In case it is not clear, the '#' that starts the comment # must be the first character on that line (an lf # preceded it). # + cat_blob ::= 'cat-blob' sp (hexsha1 | idnum) lf; + comment ::= '#' not_lf* lf; not_lf ::= # Any byte that is not ASCII newline (LF); */ @@ -367,6 +368,7 @@ static int seen_data_command; static int cat_blob_fd = STDOUT_FILENO; static void parse_argv(void); +static void parse_cat_blob(void); static void write_branch_report(FILE *rpt, struct branch *b) { @@ -1785,7 +1787,6 @@ static void read_marks(void) fclose(f); } - static int read_next_command(void) { static int stdin_eof = 0; @@ -1795,7 +1796,7 @@ static int read_next_command(void) return EOF; } - do { + for (;;) { if (unread_command_buf) { unread_command_buf = 0; } else { @@ -1828,9 +1829,14 @@ static int read_next_command(void) rc->prev->next = rc; cmd_tail = rc; } - } while (command_buf.buf[0] == '#'); - - return 0; + if (!prefixcmp(command_buf.buf, "cat-blob ")) { + parse_cat_blob(); + continue; + } + if (command_buf.buf[0] == '#') + continue; + return 0; + } } static void skip_optional_lf(void) @@ -3066,8 +3072,6 @@ int main(int argc, const char **argv) parse_new_tag(); else if (!prefixcmp(command_buf.buf, "reset ")) parse_reset_branch(); - else if (!prefixcmp(command_buf.buf, "cat-blob ")) - parse_cat_blob(); else if (!strcmp("checkpoint", command_buf.buf)) parse_checkpoint(); else if (!prefixcmp(command_buf.buf, "progress ")) diff --git a/t/t9300-fast-import.sh b/t/t9300-fast-import.sh index a0162b73d..d615d04a3 100755 --- a/t/t9300-fast-import.sh +++ b/t/t9300-fast-import.sh @@ -1823,6 +1823,72 @@ test_expect_success PIPE 'R: copy using cat-file' ' test_cmp big actual ' +test_expect_success PIPE 'R: print blob mid-commit' ' + rm -f blobs && + echo "A blob from _before_ the commit." >expect && + mkfifo blobs && + ( + exec 3<blobs && + cat <<-EOF && + feature cat-blob + blob + mark :1 + data <<BLOB + A blob from _before_ the commit. + BLOB + commit refs/heads/temporary + committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE + data <<COMMIT + Empty commit + COMMIT + cat-blob :1 + EOF + + read blob_id type size <&3 && + dd if=/dev/stdin of=actual bs=$size count=1 <&3 && + read newline <&3 && + + echo + ) | + git fast-import --cat-blob-fd=3 3>blobs && + test_cmp expect actual +' + +test_expect_success PIPE 'R: print staged blob within commit' ' + rm -f blobs && + echo "A blob from _within_ the commit." >expect && + mkfifo blobs && + ( + exec 3<blobs && + cat <<-EOF && + feature cat-blob + commit refs/heads/within + committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE + data <<COMMIT + Empty commit + COMMIT + M 644 inline within + data <<BLOB + A blob from _within_ the commit. + BLOB + EOF + + to_get=$( + echo "A blob from _within_ the commit." | + git hash-object --stdin + ) && + echo "cat-blob $to_get" && + + read blob_id type size <&3 && + dd if=/dev/stdin of=actual bs=$size count=1 <&3 && + read newline <&3 && + + echo deleteall + ) | + git fast-import --cat-blob-fd=3 3>blobs && + test_cmp expect actual +' + cat >input << EOF option git quiet blob |