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Merge branch 'cp/textconv-cat-file'

* cp/textconv-cat-file:
  git-cat-file.txt: Document --textconv
  t/t8007: test textconv support for cat-file
  textconv: support for cat_file
  sha1_name: add get_sha1_with_context()
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2 parents 6aa2064 + 9f77fe0 commit cf4403a01070f03e5c5cc65b52c1351d20ff4e91 @gitster gitster committed Jun 27, 2010
Showing with 155 additions and 15 deletions.
  1. +8 −2 Documentation/git-cat-file.txt
  2. +2 −0 builtin.h
  3. +4 −4 builtin/blame.c
  4. +34 −4 builtin/cat-file.c
  5. +11 −0 cache.h
  6. +26 −5 sha1_name.c
  7. +70 −0 t/t8007-cat-file-textconv.sh
View
10 Documentation/git-cat-file.txt
@@ -9,14 +9,15 @@ git-cat-file - Provide content or type and size information for repository objec
SYNOPSIS
--------
[verse]
-'git cat-file' (-t | -s | -e | -p | <type>) <object>
+'git cat-file' (-t | -s | -e | -p | <type> | --textconv ) <object>
'git cat-file' (--batch | --batch-check) < <list-of-objects>
DESCRIPTION
-----------
In its first form, the command provides the content or the type of an object in
the repository. The type is required unless '-t' or '-p' is used to find the
-object type, or '-s' is used to find the object size.
+object type, or '-s' is used to find the object size, or '--textconv' is used
+(which implies type "blob").
In the second form, a list of objects (separated by linefeeds) is provided on
stdin, and the SHA1, type, and size of each object is printed on stdout.
@@ -51,6 +52,11 @@ OPTIONS
or to ask for a "blob" with <object> being a tag object that
points at it.
+--textconv::
+ Show the content as transformed by a textconv filter. In this case,
+ <object> has be of the form <treeish>:<path>, or :<path> in order
+ to apply the filter to the content recorded in the index at <path>.
+
--batch::
Print the SHA1, type, size, and contents of each object provided on
stdin. May not be combined with any other options or arguments.
View
2 builtin.h
@@ -37,6 +37,8 @@ void finish_copy_notes_for_rewrite(struct notes_rewrite_cfg *c);
extern int check_pager_config(const char *cmd);
+extern int textconv_object(const char *path, const unsigned char *sha1, char **buf, unsigned long *buf_size);
+
extern int cmd_add(int argc, const char **argv, const char *prefix);
extern int cmd_annotate(int argc, const char **argv, const char *prefix);
extern int cmd_apply(int argc, const char **argv, const char *prefix);
View
8 builtin/blame.c
@@ -91,10 +91,10 @@ struct origin {
* if the textconv driver exists.
* Return 1 if the conversion succeeds, 0 otherwise.
*/
-static int textconv_object(const char *path,
- const unsigned char *sha1,
- char **buf,
- unsigned long *buf_size)
+int textconv_object(const char *path,
+ const unsigned char *sha1,
+ char **buf,
+ unsigned long *buf_size)
{
struct diff_filespec *df;
struct userdiff_driver *textconv;
View
38 builtin/cat-file.c
@@ -9,6 +9,8 @@
#include "tree.h"
#include "builtin.h"
#include "parse-options.h"
+#include "diff.h"
+#include "userdiff.h"
#define BATCH 1
#define BATCH_CHECK 2
@@ -84,10 +86,11 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name)
{
unsigned char sha1[20];
enum object_type type;
- void *buf;
+ char *buf;
unsigned long size;
+ struct object_context obj_context;
- if (get_sha1(obj_name, sha1))
+ if (get_sha1_with_context(obj_name, sha1, &obj_context))
die("Not a valid object name %s", obj_name);
buf = NULL;
@@ -134,6 +137,17 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name)
/* otherwise just spit out the data */
break;
+
+ case 'c':
+ if (!obj_context.path[0])
+ die("git cat-file --textconv %s: <object> must be <sha1:path>",
+ obj_name);
+
+ if (!textconv_object(obj_context.path, sha1, &buf, &size))
+ die("git cat-file --textconv: unable to run textconv on %s",
+ obj_name);
+ break;
+
case 0:
buf = read_object_with_reference(sha1, exp_type, &size, NULL);
break;
@@ -203,11 +217,25 @@ static int batch_objects(int print_contents)
}
static const char * const cat_file_usage[] = {
- "git cat-file (-t|-s|-e|-p|<type>) <object>",
+ "git cat-file (-t|-s|-e|-p|<type>|--textconv) <object>",
"git cat-file (--batch|--batch-check) < <list_of_objects>",
NULL
};
+static int git_cat_file_config(const char *var, const char *value, void *cb)
+{
+ switch (userdiff_config(var, value)) {
+ case 0:
+ break;
+ case -1:
+ return -1;
+ default:
+ return 0;
+ }
+
+ return git_default_config(var, value, cb);
+}
+
int cmd_cat_file(int argc, const char **argv, const char *prefix)
{
int opt = 0, batch = 0;
@@ -220,6 +248,8 @@ int cmd_cat_file(int argc, const char **argv, const char *prefix)
OPT_SET_INT('e', NULL, &opt,
"exit with zero when there's no error", 'e'),
OPT_SET_INT('p', NULL, &opt, "pretty-print object's content", 'p'),
+ OPT_SET_INT(0, "textconv", &opt,
+ "for blob objects, run textconv on object's content", 'c'),
OPT_SET_INT(0, "batch", &batch,
"show info and content of objects fed from the standard input",
BATCH),
@@ -229,7 +259,7 @@ int cmd_cat_file(int argc, const char **argv, const char *prefix)
OPT_END()
};
- git_config(git_default_config, NULL);
+ git_config(git_cat_file_config, NULL);
if (argc != 3 && argc != 2)
usage_with_options(cat_file_usage, options);
View
11 cache.h
@@ -750,12 +750,23 @@ static inline unsigned int hexval(unsigned char c)
#define MINIMUM_ABBREV 4
#define DEFAULT_ABBREV 7
+struct object_context {
+ unsigned char tree[20];
+ char path[PATH_MAX];
+ unsigned mode;
+};
+
extern int get_sha1(const char *str, unsigned char *sha1);
extern int get_sha1_with_mode_1(const char *str, unsigned char *sha1, unsigned *mode, int gently, const char *prefix);
static inline int get_sha1_with_mode(const char *str, unsigned char *sha1, unsigned *mode)
{
return get_sha1_with_mode_1(str, sha1, mode, 1, NULL);
}
+extern int get_sha1_with_context_1(const char *name, unsigned char *sha1, struct object_context *orc, int gently, const char *prefix);
+static inline int get_sha1_with_context(const char *str, unsigned char *sha1, struct object_context *orc)
+{
+ return get_sha1_with_context_1(str, sha1, orc, 1, NULL);
+}
extern int get_sha1_hex(const char *hex, unsigned char *sha1);
extern char *sha1_to_hex(const unsigned char *sha1); /* static buffer result! */
extern int read_ref(const char *filename, unsigned char *sha1);
View
31 sha1_name.c
@@ -939,8 +939,8 @@ int interpret_branch_name(const char *name, struct strbuf *buf)
*/
int get_sha1(const char *name, unsigned char *sha1)
{
- unsigned unused;
- return get_sha1_with_mode(name, sha1, &unused);
+ struct object_context unused;
+ return get_sha1_with_context(name, sha1, &unused);
}
/* Must be called only when object_name:filename doesn't exist. */
@@ -1038,11 +1038,23 @@ static void diagnose_invalid_index_path(int stage,
int get_sha1_with_mode_1(const char *name, unsigned char *sha1, unsigned *mode, int gently, const char *prefix)
{
+ struct object_context oc;
+ int ret;
+ ret = get_sha1_with_context_1(name, sha1, &oc, gently, prefix);
+ *mode = oc.mode;
+ return ret;
+}
+
+int get_sha1_with_context_1(const char *name, unsigned char *sha1,
+ struct object_context *oc,
+ int gently, const char *prefix)
+{
int ret, bracket_depth;
int namelen = strlen(name);
const char *cp;
- *mode = S_IFINVALID;
+ memset(oc, 0, sizeof(*oc));
+ oc->mode = S_IFINVALID;
ret = get_sha1_1(name, namelen, sha1);
if (!ret)
return ret;
@@ -1065,6 +1077,11 @@ int get_sha1_with_mode_1(const char *name, unsigned char *sha1, unsigned *mode,
cp = name + 3;
}
namelen = namelen - (cp - name);
+
+ strncpy(oc->path, cp,
+ sizeof(oc->path));
+ oc->path[sizeof(oc->path)-1] = '\0';
+
if (!active_cache)
read_cache();
pos = cache_name_pos(cp, namelen);
@@ -1077,7 +1094,6 @@ int get_sha1_with_mode_1(const char *name, unsigned char *sha1, unsigned *mode,
break;
if (ce_stage(ce) == stage) {
hashcpy(sha1, ce->sha1);
- *mode = ce->ce_mode;
return 0;
}
pos++;
@@ -1104,12 +1120,17 @@ int get_sha1_with_mode_1(const char *name, unsigned char *sha1, unsigned *mode,
}
if (!get_sha1_1(name, cp-name, tree_sha1)) {
const char *filename = cp+1;
- ret = get_tree_entry(tree_sha1, filename, sha1, mode);
+ ret = get_tree_entry(tree_sha1, filename, sha1, &oc->mode);
if (!gently) {
diagnose_invalid_sha1_path(prefix, filename,
tree_sha1, object_name);
free(object_name);
}
+ hashcpy(oc->tree, tree_sha1);
+ strncpy(oc->path, filename,
+ sizeof(oc->path));
+ oc->path[sizeof(oc->path)-1] = '\0';
+
return ret;
} else {
if (!gently)
View
70 t/t8007-cat-file-textconv.sh
@@ -0,0 +1,70 @@
+#!/bin/sh
+
+test_description='git cat-file textconv support'
+. ./test-lib.sh
+
+cat >helper <<'EOF'
+#!/bin/sh
+sed 's/^/converted: /' "$@"
+EOF
+chmod +x helper
+
+test_expect_success 'setup ' '
+ echo test >one.bin &&
+ git add . &&
+ GIT_AUTHOR_NAME=Number1 git commit -a -m First --date="2010-01-01 18:00:00" &&
+ echo test version 2 >one.bin &&
+ GIT_AUTHOR_NAME=Number2 git commit -a -m Second --date="2010-01-01 20:00:00"
+'
+
+cat >expected <<EOF
+fatal: git cat-file --textconv: unable to run textconv on :one.bin
+EOF
+
+test_expect_success 'no filter specified' '
+ git cat-file --textconv :one.bin 2>result
+ test_cmp expected result
+'
+
+test_expect_success 'setup textconv filters' '
+ echo "*.bin diff=test" >.gitattributes &&
+ git config diff.test.textconv ./helper &&
+ git config diff.test.cachetextconv false
+'
+
+cat >expected <<EOF
+test version 2
+EOF
+
+test_expect_success 'cat-file without --textconv' '
+ git cat-file blob :one.bin >result &&
+ test_cmp expected result
+'
+
+cat >expected <<EOF
+test
+EOF
+
+test_expect_success 'cat-file without --textconv on previous commit' '
+ git cat-file -p HEAD^:one.bin >result &&
+ test_cmp expected result
+'
+
+cat >expected <<EOF
+converted: test version 2
+EOF
+
+test_expect_success 'cat-file --textconv on last commit' '
+ git cat-file --textconv :one.bin >result &&
+ test_cmp expected result
+'
+
+cat >expected <<EOF
+converted: test
+EOF
+
+test_expect_success 'cat-file --textconv on previous commit' '
+ git cat-file --textconv HEAD^:one.bin >result &&
+ test_cmp expected result
+'
+test_done

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