This allows the frontend to specify any of the supported options as
long as no non-option command has been given. This way the
user does not have to include any frontend-specific options, but
instead she can rely on the frontend to tell fast-import what it
needs.
Also factor out parsing of argv and have it execute when we reach the
first non-option command, or after all commands have been read and
no non-option command has been encountered.
Signed-off-by: Sverre Rabbelier <srabbelier@xxxxxxxxx>
---
Squash of 2/4 and 3/4. Also moved argv parsing so that user
options override stream options. Fixed typos.
Documentation/git-fast-import.txt | 23 +++++++++++++++
fast-import.c | 56 ++++++++++++++++++++++++++++++------
2 files changed, 69 insertions(+), 10 deletions(-)
diff --git a/Documentation/git-fast-import.txt b/Documentation/git-fast-import.txt
index c2f483a..ed8bd0d 100644
--- a/Documentation/git-fast-import.txt
+++ b/Documentation/git-fast-import.txt
@@ -303,6 +303,11 @@ and control the current import process. More detailed discussion
standard output. This command is optional and is not needed
to perform an import.
+`option`::
+ Specify any of the options listed under OPTIONS to change
+ fast-import's behavior to suit the frontend's needs. This command
+ is optional and is not needed to perform an import.
+
`commit`
~~~~~~~~
Create or update a branch with a new commit, recording one logical
@@ -813,6 +818,24 @@ Placing a `progress` command immediately after a `checkpoint` will
inform the reader when the `checkpoint` has been completed and it
can safely access the refs that fast-import updated.
+`option`
+~~~~~~~~
+Processes the specified option so that git fast-import behaves in a
+way that suits the frontend's needs.
+Note that options specified by the frontend are overridden by any
+options the user may specify to git fast-import itself.
+
+....
+ 'option' SP <option> LF
+....
+
+The `<option>` part of the command may contain any of the options
+listed in the OPTIONS section, without the leading '--' and is
+treated in the same way.
+
+Option commands must be the first commands on the input, to give an
+option command after any non-option command is an error.
+
Crash Reports
-------------
If fast-import is supplied invalid input it will terminate with a
diff --git a/fast-import.c b/fast-import.c
index b904f20..12e63f3 100644
--- a/fast-import.c
+++ b/fast-import.c
@@ -292,6 +292,8 @@ static unsigned long branch_load_count;
static int failure;
static FILE *pack_edges;
static unsigned int show_stats = 1;
+static int global_argc;
+static const char **global_argv;
/* Memory pools */
static size_t mem_pool_alloc = 2*1024*1024 - sizeof(struct mem_pool);
@@ -348,6 +350,9 @@ static struct recent_command *rc_free;
static unsigned int cmd_save = 100;
static uintmax_t next_mark;
static struct strbuf new_data = STRBUF_INIT;
+static int seen_non_option_command;
+
+static void parse_argv(void);
static void write_branch_report(FILE *rpt, struct branch *b)
{
@@ -1663,6 +1668,12 @@ static int read_next_command(void)
if (stdin_eof)
return EOF;
+ if (!seen_non_option_command
+ && prefixcmp(command_buf.buf, "option ")) {
+ seen_non_option_command = 1;
+ parse_argv();
+ }
+
rc = rc_free;
if (rc)
rc_free = rc->next;
@@ -2443,6 +2454,16 @@ static void parse_one_option(const char *option)
}
}
+static void parse_option(void)
+{
+ char* option = command_buf.buf + 7;
+
+ if (seen_non_option_command)
+ die("Got option command '%s' after non-option command", option);
+
+ parse_one_option(option);
+}
+
static int git_pack_config(const char *k, const char *v, void *cb)
{
if (!strcmp(k, "pack.depth")) {
@@ -2467,6 +2488,22 @@ static int git_pack_config(const char *k, const char *v, void *cb)
static const char fast_import_usage[] =
"git fast-import [--date-format=f] [--max-pack-size=n] [--depth=n] [--active-branches=n] [--export-marks=marks.file]";
+static void parse_argv(void)
+{
+ unsigned int i;
+
+ for (i = 1; i < global_argc; i++) {
+ const char *a = global_argv[i];
+
+ if (*a != '-' || !strcmp(a, "--"))
+ break;
+
+ parse_one_option(a + 2);
+ }
+ if (i != global_argc)
+ usage(fast_import_usage);
+}
+
int main(int argc, const char **argv)
{
unsigned int i;
@@ -2485,16 +2522,8 @@ int main(int argc, const char **argv)
avail_tree_table = xcalloc(avail_tree_table_sz, sizeof(struct avail_tree_content*));
marks = pool_calloc(1, sizeof(struct mark_set));
- for (i = 1; i < argc; i++) {
- const char *a = argv[i];
-
- if (*a != '-' || !strcmp(a, "--"))
- break;
-
- parse_one_option(a + 2);
- }
- if (i != argc)
- usage(fast_import_usage);
+ global_argc = argc;
+ global_argv = argv;
rc_free = pool_alloc(cmd_save * sizeof(*rc_free));
for (i = 0; i < (cmd_save - 1); i++)
@@ -2517,9 +2546,16 @@ int main(int argc, const char **argv)
parse_checkpoint();
else if (!prefixcmp(command_buf.buf, "progress "))
parse_progress();
+ else if (!prefixcmp(command_buf.buf, "option "))
+ parse_option();
else
die("Unsupported command: %s", command_buf.buf);
}
+
+ // argv hasn't been parsed yet, do so
+ if (!seen_non_option_command)
+ parse_argv();
+
end_packfile();
dump_branches();
--
1.6.4.16.g72c66.dirty
--
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