* [PATCH v2 08/16] pathspec: always show mnemonic and name in unsupported_magic
From: Brandon Williams @ 2016-12-08 18:59 UTC (permalink / raw)
To: git; +Cc: Brandon Williams, sbeller, pclouds, gitster
In-Reply-To: <1481223550-65277-1-git-send-email-bmwill@google.com>
For better clarity, always show the mnemonic and name of the unsupported
magic being used. This lets users have a more clear understanding of
what magic feature isn't supported. And if they supplied a mnemonic,
the user will be told what its corresponding name is which will allow
them to more easily search the man pages for that magic type.
This also avoids passing an extra parameter around the pathspec
initialization code.
Signed-off-by: Brandon Williams <bmwill@google.com>
---
pathspec.c | 23 ++++++++---------------
1 file changed, 8 insertions(+), 15 deletions(-)
diff --git a/pathspec.c b/pathspec.c
index ec0d590..a360193 100644
--- a/pathspec.c
+++ b/pathspec.c
@@ -68,7 +68,7 @@ static struct pathspec_magic {
const char *name;
} pathspec_magic[] = {
{ PATHSPEC_FROMTOP, '/', "top" },
- { PATHSPEC_LITERAL, 0, "literal" },
+ { PATHSPEC_LITERAL,'\0', "literal" },
{ PATHSPEC_GLOB, '\0', "glob" },
{ PATHSPEC_ICASE, '\0', "icase" },
{ PATHSPEC_EXCLUDE, '!', "exclude" },
@@ -101,9 +101,7 @@ static void prefix_short_magic(struct strbuf *sb, int prefixlen,
* the prefix part must always match literally, and a single stupid
* string cannot express such a case.
*/
-static unsigned prefix_pathspec(struct pathspec_item *item,
- unsigned *p_short_magic,
- unsigned flags,
+static unsigned prefix_pathspec(struct pathspec_item *item, unsigned flags,
const char *prefix, int prefixlen,
const char *elt)
{
@@ -210,7 +208,6 @@ static unsigned prefix_pathspec(struct pathspec_item *item,
}
magic |= short_magic;
- *p_short_magic = short_magic;
/* --noglob-pathspec adds :(literal) _unless_ :(glob) is specified */
if (noglob_global && !(magic & PATHSPEC_GLOB))
@@ -329,8 +326,7 @@ static int pathspec_item_cmp(const void *a_, const void *b_)
}
static void NORETURN unsupported_magic(const char *pattern,
- unsigned magic,
- unsigned short_magic)
+ unsigned magic)
{
struct strbuf sb = STRBUF_INIT;
int i;
@@ -340,8 +336,9 @@ static void NORETURN unsupported_magic(const char *pattern,
continue;
if (sb.len)
strbuf_addch(&sb, ' ');
- if (short_magic & m->bit)
- strbuf_addf(&sb, "'%c'", m->mnemonic);
+
+ if (m->mnemonic)
+ strbuf_addf(&sb, "'(%c)%s'", m->mnemonic, m->name);
else
strbuf_addf(&sb, "'%s'", m->name);
}
@@ -413,11 +410,9 @@ void parse_pathspec(struct pathspec *pathspec,
prefixlen = prefix ? strlen(prefix) : 0;
for (i = 0; i < n; i++) {
- unsigned short_magic;
entry = argv[i];
- item[i].magic = prefix_pathspec(item + i, &short_magic,
- flags,
+ item[i].magic = prefix_pathspec(item + i, flags,
prefix, prefixlen, entry);
if ((flags & PATHSPEC_LITERAL_PATH) &&
!(magic_mask & PATHSPEC_LITERAL))
@@ -425,9 +420,7 @@ void parse_pathspec(struct pathspec *pathspec,
if (item[i].magic & PATHSPEC_EXCLUDE)
nr_exclude++;
if (item[i].magic & magic_mask)
- unsupported_magic(entry,
- item[i].magic & magic_mask,
- short_magic);
+ unsupported_magic(entry, item[i].magic & magic_mask);
if ((flags & PATHSPEC_SYMLINK_LEADING_PATH) &&
has_symlink_leading_path(item[i].match, item[i].len)) {
--
2.8.0.rc3.226.g39d4020
^ permalink raw reply related
* [PATCH v2 14/16] pathspec: create strip submodule slash helpers
From: Brandon Williams @ 2016-12-08 18:59 UTC (permalink / raw)
To: git; +Cc: Brandon Williams, sbeller, pclouds, gitster
In-Reply-To: <1481223550-65277-1-git-send-email-bmwill@google.com>
Factor out the logic responsible for stripping the trailing slash on
pathspecs referencing submodules into its own function.
Signed-off-by: Brandon Williams <bmwill@google.com>
---
pathspec.c | 68 ++++++++++++++++++++++++++++++++++++++------------------------
1 file changed, 42 insertions(+), 26 deletions(-)
diff --git a/pathspec.c b/pathspec.c
index f37f887..cf88390 100644
--- a/pathspec.c
+++ b/pathspec.c
@@ -258,6 +258,44 @@ static const char *parse_element_magic(unsigned *magic, int *prefix_len,
return parse_short_magic(magic, elem);
}
+static void strip_submodule_slash_cheap(struct pathspec_item *item)
+{
+ int i;
+
+ if ((item->len >= 1 && item->match[item->len - 1] == '/') &&
+ (i = cache_name_pos(item->match, item->len - 1)) >= 0 &&
+ S_ISGITLINK(active_cache[i]->ce_mode)) {
+ item->len--;
+ item->match[item->len] = '\0';
+ }
+}
+
+static void strip_submodule_slash_expensive(struct pathspec_item *item)
+{
+ int i;
+
+ for (i = 0; i < active_nr; i++) {
+ struct cache_entry *ce = active_cache[i];
+ int ce_len = ce_namelen(ce);
+
+ if (!S_ISGITLINK(ce->ce_mode))
+ continue;
+
+ if (item->len <= ce_len || item->match[ce_len] != '/' ||
+ memcmp(ce->name, item->match, ce_len))
+ continue;
+
+ if (item->len == ce_len + 1) {
+ /* strip trailing slash */
+ item->len--;
+ item->match[item->len] = '\0';
+ } else {
+ die (_("Pathspec '%s' is in submodule '%.*s'"),
+ item->original, ce_len, ce->name);
+ }
+ }
+}
+
/*
* Take an element of a pathspec and check for magic signatures.
* Append the result to the prefix. Return the magic bitmap.
@@ -278,7 +316,7 @@ static unsigned prefix_pathspec(struct pathspec_item *item, unsigned flags,
unsigned magic = 0, element_magic = 0;
const char *copyfrom = elt;
char *match;
- int i, pathspec_prefix = -1;
+ int pathspec_prefix = -1;
/* PATHSPEC_LITERAL_PATH ignores magic */
if (flags & PATHSPEC_LITERAL_PATH) {
@@ -329,33 +367,11 @@ static unsigned prefix_pathspec(struct pathspec_item *item, unsigned flags,
item->len = strlen(item->match);
item->prefix = prefixlen;
- if ((flags & PATHSPEC_STRIP_SUBMODULE_SLASH_CHEAP) &&
- (item->len >= 1 && item->match[item->len - 1] == '/') &&
- (i = cache_name_pos(item->match, item->len - 1)) >= 0 &&
- S_ISGITLINK(active_cache[i]->ce_mode)) {
- item->len--;
- match[item->len] = '\0';
- }
+ if (flags & PATHSPEC_STRIP_SUBMODULE_SLASH_CHEAP)
+ strip_submodule_slash_cheap(item);
if (flags & PATHSPEC_STRIP_SUBMODULE_SLASH_EXPENSIVE)
- for (i = 0; i < active_nr; i++) {
- struct cache_entry *ce = active_cache[i];
- int ce_len = ce_namelen(ce);
-
- if (!S_ISGITLINK(ce->ce_mode))
- continue;
-
- if (item->len <= ce_len || match[ce_len] != '/' ||
- memcmp(ce->name, match, ce_len))
- continue;
- if (item->len == ce_len + 1) {
- /* strip trailing slash */
- item->len--;
- match[item->len] = '\0';
- } else
- die (_("Pathspec '%s' is in submodule '%.*s'"),
- elt, ce_len, ce->name);
- }
+ strip_submodule_slash_expensive(item);
if (magic & PATHSPEC_LITERAL)
item->nowildcard_len = item->len;
--
2.8.0.rc3.226.g39d4020
^ permalink raw reply related
* [PATCH v2 15/16] pathspec: small readability changes
From: Brandon Williams @ 2016-12-08 18:59 UTC (permalink / raw)
To: git; +Cc: Brandon Williams, sbeller, pclouds, gitster
In-Reply-To: <1481223550-65277-1-git-send-email-bmwill@google.com>
A few small changes to improve readability. This is done by grouping related
assignments, adding blank lines, ensuring lines are <80 characters, and
adding additional comments.
Signed-off-by: Brandon Williams <bmwill@google.com>
---
pathspec.c | 15 ++++++++++-----
1 file changed, 10 insertions(+), 5 deletions(-)
diff --git a/pathspec.c b/pathspec.c
index cf88390..4686298 100644
--- a/pathspec.c
+++ b/pathspec.c
@@ -336,6 +336,7 @@ static unsigned prefix_pathspec(struct pathspec_item *item, unsigned flags,
if ((magic & PATHSPEC_LITERAL) && (magic & PATHSPEC_GLOB))
die(_("%s: 'literal' and 'glob' are incompatible"), elt);
+ /* Create match string which will be used for pathspec matching */
if (pathspec_prefix >= 0) {
match = xstrdup(copyfrom);
prefixlen = pathspec_prefix;
@@ -343,11 +344,16 @@ static unsigned prefix_pathspec(struct pathspec_item *item, unsigned flags,
match = xstrdup(copyfrom);
prefixlen = 0;
} else {
- match = prefix_path_gently(prefix, prefixlen, &prefixlen, copyfrom);
+ match = prefix_path_gently(prefix, prefixlen,
+ &prefixlen, copyfrom);
if (!match)
die(_("%s: '%s' is outside repository"), elt, copyfrom);
}
+
item->match = match;
+ item->len = strlen(item->match);
+ item->prefix = prefixlen;
+
/*
* Prefix the pathspec (keep all magic) and assign to
* original. Useful for passing to another command.
@@ -364,8 +370,6 @@ static unsigned prefix_pathspec(struct pathspec_item *item, unsigned flags,
} else {
item->original = xstrdup(elt);
}
- item->len = strlen(item->match);
- item->prefix = prefixlen;
if (flags & PATHSPEC_STRIP_SUBMODULE_SLASH_CHEAP)
strip_submodule_slash_cheap(item);
@@ -373,13 +377,14 @@ static unsigned prefix_pathspec(struct pathspec_item *item, unsigned flags,
if (flags & PATHSPEC_STRIP_SUBMODULE_SLASH_EXPENSIVE)
strip_submodule_slash_expensive(item);
- if (magic & PATHSPEC_LITERAL)
+ if (magic & PATHSPEC_LITERAL) {
item->nowildcard_len = item->len;
- else {
+ } else {
item->nowildcard_len = simple_length(item->match);
if (item->nowildcard_len < prefixlen)
item->nowildcard_len = prefixlen;
}
+
item->flags = 0;
if (magic & PATHSPEC_GLOB) {
/*
--
2.8.0.rc3.226.g39d4020
^ permalink raw reply related
* [PATCH v2 13/16] pathspec: create parse_element_magic helper
From: Brandon Williams @ 2016-12-08 18:59 UTC (permalink / raw)
To: git; +Cc: Brandon Williams, sbeller, pclouds, gitster
In-Reply-To: <1481223550-65277-1-git-send-email-bmwill@google.com>
Factor out the logic responsible for the magic in a pathspec element
into its own function.
Also avoid calling into the parsing functions when
`PATHSPEC_LITERAL_PATH` is specified since it causes magic to be
ignored and all paths to be treated as literals.
Signed-off-by: Brandon Williams <bmwill@google.com>
---
pathspec.c | 37 ++++++++++++++++++++-----------------
1 file changed, 20 insertions(+), 17 deletions(-)
diff --git a/pathspec.c b/pathspec.c
index 6e9555e..f37f887 100644
--- a/pathspec.c
+++ b/pathspec.c
@@ -245,6 +245,19 @@ static const char *parse_short_magic(unsigned *magic, const char *elem)
return pos;
}
+static const char *parse_element_magic(unsigned *magic, int *prefix_len,
+ const char *elem)
+{
+ if (elem[0] != ':' || get_literal_global())
+ return elem; /* nothing to do */
+ else if (elem[1] == '(')
+ /* longhand */
+ return parse_long_magic(magic, prefix_len, elem);
+ else
+ /* shorthand */
+ return parse_short_magic(magic, elem);
+}
+
/*
* Take an element of a pathspec and check for magic signatures.
* Append the result to the prefix. Return the magic bitmap.
@@ -267,26 +280,16 @@ static unsigned prefix_pathspec(struct pathspec_item *item, unsigned flags,
char *match;
int i, pathspec_prefix = -1;
- if (elt[0] != ':' || get_literal_global() ||
- (flags & PATHSPEC_LITERAL_PATH)) {
- ; /* nothing to do */
- } else if (elt[1] == '(') {
- /* longhand */
- copyfrom = parse_long_magic(&element_magic,
- &pathspec_prefix,
- elt);
- } else {
- /* shorthand */
- copyfrom = parse_short_magic(&element_magic, elt);
- }
-
- magic |= element_magic;
-
/* PATHSPEC_LITERAL_PATH ignores magic */
- if (flags & PATHSPEC_LITERAL_PATH)
+ if (flags & PATHSPEC_LITERAL_PATH) {
magic = PATHSPEC_LITERAL;
- else
+ } else {
+ copyfrom = parse_element_magic(&element_magic,
+ &pathspec_prefix,
+ elt);
+ magic |= element_magic;
magic |= get_global_magic(element_magic);
+ }
if (pathspec_prefix >= 0 &&
(prefixlen || (prefix && *prefix)))
--
2.8.0.rc3.226.g39d4020
^ permalink raw reply related
* [PATCH v2 16/16] pathspec: rename prefix_pathspec to init_pathspec_item
From: Brandon Williams @ 2016-12-08 18:59 UTC (permalink / raw)
To: git; +Cc: Brandon Williams, sbeller, pclouds, gitster
In-Reply-To: <1481223550-65277-1-git-send-email-bmwill@google.com>
Give a more relevant name to the prefix_pathspec function as it does
more than just prefix a pathspec element.
Signed-off-by: Brandon Williams <bmwill@google.com>
---
pathspec.c | 24 +++++++-----------------
1 file changed, 7 insertions(+), 17 deletions(-)
diff --git a/pathspec.c b/pathspec.c
index 4686298..08abdd3 100644
--- a/pathspec.c
+++ b/pathspec.c
@@ -297,21 +297,11 @@ static void strip_submodule_slash_expensive(struct pathspec_item *item)
}
/*
- * Take an element of a pathspec and check for magic signatures.
- * Append the result to the prefix. Return the magic bitmap.
- *
- * For now, we only parse the syntax and throw out anything other than
- * "top" magic.
- *
- * NEEDSWORK: This needs to be rewritten when we start migrating
- * get_pathspec() users to use the "struct pathspec" interface. For
- * example, a pathspec element may be marked as case-insensitive, but
- * the prefix part must always match literally, and a single stupid
- * string cannot express such a case.
+ * Perform the initialization of a pathspec_item based on a pathspec element.
*/
-static unsigned prefix_pathspec(struct pathspec_item *item, unsigned flags,
- const char *prefix, int prefixlen,
- const char *elt)
+static void init_pathspec_item(struct pathspec_item *item, unsigned flags,
+ const char *prefix, int prefixlen,
+ const char *elt)
{
unsigned magic = 0, element_magic = 0;
const char *copyfrom = elt;
@@ -329,6 +319,8 @@ static unsigned prefix_pathspec(struct pathspec_item *item, unsigned flags,
magic |= get_global_magic(element_magic);
}
+ item->magic = magic;
+
if (pathspec_prefix >= 0 &&
(prefixlen || (prefix && *prefix)))
die("BUG: 'prefix' magic is supposed to be used at worktree's root");
@@ -401,7 +393,6 @@ static unsigned prefix_pathspec(struct pathspec_item *item, unsigned flags,
/* sanity checks, pathspec matchers assume these are sane */
assert(item->nowildcard_len <= item->len &&
item->prefix <= item->len);
- return magic;
}
static int pathspec_item_cmp(const void *a_, const void *b_)
@@ -500,8 +491,7 @@ void parse_pathspec(struct pathspec *pathspec,
for (i = 0; i < n; i++) {
entry = argv[i];
- item[i].magic = prefix_pathspec(item + i, flags,
- prefix, prefixlen, entry);
+ init_pathspec_item(item + i, flags, prefix, prefixlen, entry);
if (item[i].magic & PATHSPEC_EXCLUDE)
nr_exclude++;
--
2.8.0.rc3.226.g39d4020
^ permalink raw reply related
* [PATCH v2 12/16] pathspec: create parse_long_magic function
From: Brandon Williams @ 2016-12-08 18:59 UTC (permalink / raw)
To: git; +Cc: Brandon Williams, sbeller, pclouds, gitster
In-Reply-To: <1481223550-65277-1-git-send-email-bmwill@google.com>
Factor out the logic responsible for parsing long magic into its own
function. As well as hoist the prefix check logic outside of the inner
loop as there isn't anything that needs to be done after matching
"prefix:".
Signed-off-by: Brandon Williams <bmwill@google.com>
---
pathspec.c | 92 ++++++++++++++++++++++++++++++++++++++------------------------
1 file changed, 57 insertions(+), 35 deletions(-)
diff --git a/pathspec.c b/pathspec.c
index 29054d2..6e9555e 100644
--- a/pathspec.c
+++ b/pathspec.c
@@ -157,6 +157,60 @@ static int get_global_magic(int element_magic)
}
/*
+ * Parse the pathspec element looking for long magic
+ *
+ * saves all magic in 'magic'
+ * if prefix magic is used, save the prefix length in 'prefix_len'
+ * returns the position in 'elem' after all magic has been parsed
+ */
+static const char *parse_long_magic(unsigned *magic, int *prefix_len,
+ const char *elem)
+{
+ const char *pos;
+ const char *nextat;
+
+ for (pos = elem + 2; *pos && *pos != ')'; pos = nextat) {
+ size_t len = strcspn(pos, ",)");
+ int i;
+
+ if (pos[len] == ',')
+ nextat = pos + len + 1; /* handle ',' */
+ else
+ nextat = pos + len; /* handle ')' and '\0' */
+
+ if (!len)
+ continue;
+
+ if (starts_with(pos, "prefix:")) {
+ char *endptr;
+ *prefix_len = strtol(pos + 7, &endptr, 10);
+ if (endptr - pos != len)
+ die(_("invalid parameter for pathspec magic 'prefix'"));
+ continue;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(pathspec_magic); i++) {
+ if (strlen(pathspec_magic[i].name) == len &&
+ !strncmp(pathspec_magic[i].name, pos, len)) {
+ *magic |= pathspec_magic[i].bit;
+ break;
+ }
+ }
+
+ if (ARRAY_SIZE(pathspec_magic) <= i)
+ die(_("Invalid pathspec magic '%.*s' in '%s'"),
+ (int) len, pos, elem);
+ }
+
+ if (*pos != ')')
+ die(_("Missing ')' at the end of pathspec magic in '%s'"),
+ elem);
+ pos++;
+
+ return pos;
+}
+
+/*
* Parse the pathspec element looking for short magic
*
* saves all magic in 'magic'
@@ -218,41 +272,9 @@ static unsigned prefix_pathspec(struct pathspec_item *item, unsigned flags,
; /* nothing to do */
} else if (elt[1] == '(') {
/* longhand */
- const char *nextat;
- for (copyfrom = elt + 2;
- *copyfrom && *copyfrom != ')';
- copyfrom = nextat) {
- size_t len = strcspn(copyfrom, ",)");
- if (copyfrom[len] == ',')
- nextat = copyfrom + len + 1;
- else
- /* handle ')' and '\0' */
- nextat = copyfrom + len;
- if (!len)
- continue;
- for (i = 0; i < ARRAY_SIZE(pathspec_magic); i++) {
- if (strlen(pathspec_magic[i].name) == len &&
- !strncmp(pathspec_magic[i].name, copyfrom, len)) {
- element_magic |= pathspec_magic[i].bit;
- break;
- }
- if (starts_with(copyfrom, "prefix:")) {
- char *endptr;
- pathspec_prefix = strtol(copyfrom + 7,
- &endptr, 10);
- if (endptr - copyfrom != len)
- die(_("invalid parameter for pathspec magic 'prefix'"));
- /* "i" would be wrong, but it does not matter */
- break;
- }
- }
- if (ARRAY_SIZE(pathspec_magic) <= i)
- die(_("Invalid pathspec magic '%.*s' in '%s'"),
- (int) len, copyfrom, elt);
- }
- if (*copyfrom != ')')
- die(_("Missing ')' at the end of pathspec magic in '%s'"), elt);
- copyfrom++;
+ copyfrom = parse_long_magic(&element_magic,
+ &pathspec_prefix,
+ elt);
} else {
/* shorthand */
copyfrom = parse_short_magic(&element_magic, elt);
--
2.8.0.rc3.226.g39d4020
^ permalink raw reply related
* [PATCH v2 09/16] pathspec: simpler logic to prefix original pathspec elements
From: Brandon Williams @ 2016-12-08 18:59 UTC (permalink / raw)
To: git; +Cc: Brandon Williams, sbeller, pclouds, gitster
In-Reply-To: <1481223550-65277-1-git-send-email-bmwill@google.com>
The logic used to prefix an original pathspec element with 'prefix'
magic is more general purpose and can be used for more than just short
magic. Remove the extra code paths and rename 'prefix_short_magic' to
'prefix_magic' to better indicate that it can be used in more general
situations.
Also, slightly change the logic which decides when to prefix the
original element in order to prevent a pathspec of "." from getting
converted to "" (empty string).
Signed-off-by: Brandon Williams <bmwill@google.com>
---
pathspec.c | 33 +++++++++++++--------------------
1 file changed, 13 insertions(+), 20 deletions(-)
diff --git a/pathspec.c b/pathspec.c
index a360193..49adea4 100644
--- a/pathspec.c
+++ b/pathspec.c
@@ -74,13 +74,12 @@ static struct pathspec_magic {
{ PATHSPEC_EXCLUDE, '!', "exclude" },
};
-static void prefix_short_magic(struct strbuf *sb, int prefixlen,
- unsigned short_magic)
+static void prefix_magic(struct strbuf *sb, int prefixlen, unsigned magic)
{
int i;
strbuf_addstr(sb, ":(");
for (i = 0; i < ARRAY_SIZE(pathspec_magic); i++)
- if (short_magic & pathspec_magic[i].bit) {
+ if (magic & pathspec_magic[i].bit) {
if (sb->buf[sb->len - 1] != '(')
strbuf_addch(sb, ',');
strbuf_addstr(sb, pathspec_magic[i].name);
@@ -109,8 +108,8 @@ static unsigned prefix_pathspec(struct pathspec_item *item, unsigned flags,
static int glob_global = -1;
static int noglob_global = -1;
static int icase_global = -1;
- unsigned magic = 0, short_magic = 0, global_magic = 0;
- const char *copyfrom = elt, *long_magic_end = NULL;
+ unsigned magic = 0, element_magic = 0, global_magic = 0;
+ const char *copyfrom = elt;
char *match;
int i, pathspec_prefix = -1;
@@ -164,7 +163,7 @@ static unsigned prefix_pathspec(struct pathspec_item *item, unsigned flags,
for (i = 0; i < ARRAY_SIZE(pathspec_magic); i++) {
if (strlen(pathspec_magic[i].name) == len &&
!strncmp(pathspec_magic[i].name, copyfrom, len)) {
- magic |= pathspec_magic[i].bit;
+ element_magic |= pathspec_magic[i].bit;
break;
}
if (starts_with(copyfrom, "prefix:")) {
@@ -183,7 +182,6 @@ static unsigned prefix_pathspec(struct pathspec_item *item, unsigned flags,
}
if (*copyfrom != ')')
die(_("Missing ')' at the end of pathspec magic in '%s'"), elt);
- long_magic_end = copyfrom;
copyfrom++;
} else {
/* shorthand */
@@ -196,7 +194,7 @@ static unsigned prefix_pathspec(struct pathspec_item *item, unsigned flags,
break;
for (i = 0; i < ARRAY_SIZE(pathspec_magic); i++)
if (pathspec_magic[i].mnemonic == ch) {
- short_magic |= pathspec_magic[i].bit;
+ element_magic |= pathspec_magic[i].bit;
break;
}
if (ARRAY_SIZE(pathspec_magic) <= i)
@@ -207,7 +205,7 @@ static unsigned prefix_pathspec(struct pathspec_item *item, unsigned flags,
copyfrom++;
}
- magic |= short_magic;
+ magic |= element_magic;
/* --noglob-pathspec adds :(literal) _unless_ :(glob) is specified */
if (noglob_global && !(magic & PATHSPEC_GLOB))
@@ -242,18 +240,13 @@ static unsigned prefix_pathspec(struct pathspec_item *item, unsigned flags,
* Prefix the pathspec (keep all magic) and assign to
* original. Useful for passing to another command.
*/
- if (flags & PATHSPEC_PREFIX_ORIGIN) {
+ if ((flags & PATHSPEC_PREFIX_ORIGIN) &&
+ prefixlen && !literal_global) {
struct strbuf sb = STRBUF_INIT;
- if (prefixlen && !literal_global) {
- /* Preserve the actual prefix length of each pattern */
- if (short_magic)
- prefix_short_magic(&sb, prefixlen, short_magic);
- else if (long_magic_end) {
- strbuf_add(&sb, elt, long_magic_end - elt);
- strbuf_addf(&sb, ",prefix:%d)", prefixlen);
- } else
- strbuf_addf(&sb, ":(prefix:%d)", prefixlen);
- }
+
+ /* Preserve the actual prefix length of each pattern */
+ prefix_magic(&sb, prefixlen, element_magic);
+
strbuf_addstr(&sb, match);
item->original = strbuf_detach(&sb, NULL);
} else {
--
2.8.0.rc3.226.g39d4020
^ permalink raw reply related
* [PATCH v2 10/16] pathspec: factor global magic into its own function
From: Brandon Williams @ 2016-12-08 18:59 UTC (permalink / raw)
To: git; +Cc: Brandon Williams, sbeller, pclouds, gitster
In-Reply-To: <1481223550-65277-1-git-send-email-bmwill@google.com>
Create helper functions to read the global magic environment variables
in additon to factoring out the global magic gathering logic into its
own function.
Signed-off-by: Brandon Williams <bmwill@google.com>
---
pathspec.c | 127 +++++++++++++++++++++++++++++++++++++------------------------
1 file changed, 78 insertions(+), 49 deletions(-)
diff --git a/pathspec.c b/pathspec.c
index 49adea4..523d7bf 100644
--- a/pathspec.c
+++ b/pathspec.c
@@ -87,6 +87,75 @@ static void prefix_magic(struct strbuf *sb, int prefixlen, unsigned magic)
strbuf_addf(sb, ",prefix:%d)", prefixlen);
}
+static inline int get_literal_global(void)
+{
+ static int literal = -1;
+
+ if (literal < 0)
+ literal = git_env_bool(GIT_LITERAL_PATHSPECS_ENVIRONMENT, 0);
+
+ return literal;
+}
+
+static inline int get_glob_global(void)
+{
+ static int glob = -1;
+
+ if (glob < 0)
+ glob = git_env_bool(GIT_GLOB_PATHSPECS_ENVIRONMENT, 0);
+
+ return glob;
+}
+
+static inline int get_noglob_global(void)
+{
+ static int noglob = -1;
+
+ if (noglob < 0)
+ noglob = git_env_bool(GIT_NOGLOB_PATHSPECS_ENVIRONMENT, 0);
+
+ return noglob;
+}
+
+static inline int get_icase_global(void)
+{
+ static int icase = -1;
+
+ if (icase < 0)
+ icase = git_env_bool(GIT_ICASE_PATHSPECS_ENVIRONMENT, 0);
+
+ return icase;
+}
+
+static int get_global_magic(int element_magic)
+{
+ int global_magic = 0;
+
+ if (get_literal_global())
+ global_magic |= PATHSPEC_LITERAL;
+
+ /* --glob-pathspec is overridden by :(literal) */
+ if (get_glob_global() && !(element_magic & PATHSPEC_LITERAL))
+ global_magic |= PATHSPEC_GLOB;
+
+ if (get_glob_global() && get_noglob_global())
+ die(_("global 'glob' and 'noglob' pathspec settings are incompatible"));
+
+ if (get_icase_global())
+ global_magic |= PATHSPEC_ICASE;
+
+ if ((global_magic & PATHSPEC_LITERAL) &&
+ (global_magic & ~PATHSPEC_LITERAL))
+ die(_("global 'literal' pathspec setting is incompatible "
+ "with all other global pathspec settings"));
+
+ /* --noglob-pathspec adds :(literal) _unless_ :(glob) is specified */
+ if (get_noglob_global() && !(element_magic & PATHSPEC_GLOB))
+ global_magic |= PATHSPEC_LITERAL;
+
+ return global_magic;
+}
+
/*
* Take an element of a pathspec and check for magic signatures.
* Append the result to the prefix. Return the magic bitmap.
@@ -104,46 +173,12 @@ static unsigned prefix_pathspec(struct pathspec_item *item, unsigned flags,
const char *prefix, int prefixlen,
const char *elt)
{
- static int literal_global = -1;
- static int glob_global = -1;
- static int noglob_global = -1;
- static int icase_global = -1;
- unsigned magic = 0, element_magic = 0, global_magic = 0;
+ unsigned magic = 0, element_magic = 0;
const char *copyfrom = elt;
char *match;
int i, pathspec_prefix = -1;
- if (literal_global < 0)
- literal_global = git_env_bool(GIT_LITERAL_PATHSPECS_ENVIRONMENT, 0);
- if (literal_global)
- global_magic |= PATHSPEC_LITERAL;
-
- if (glob_global < 0)
- glob_global = git_env_bool(GIT_GLOB_PATHSPECS_ENVIRONMENT, 0);
- if (glob_global)
- global_magic |= PATHSPEC_GLOB;
-
- if (noglob_global < 0)
- noglob_global = git_env_bool(GIT_NOGLOB_PATHSPECS_ENVIRONMENT, 0);
-
- if (glob_global && noglob_global)
- die(_("global 'glob' and 'noglob' pathspec settings are incompatible"));
-
-
- if (icase_global < 0)
- icase_global = git_env_bool(GIT_ICASE_PATHSPECS_ENVIRONMENT, 0);
- if (icase_global)
- global_magic |= PATHSPEC_ICASE;
-
- if ((global_magic & PATHSPEC_LITERAL) &&
- (global_magic & ~PATHSPEC_LITERAL))
- die(_("global 'literal' pathspec setting is incompatible "
- "with all other global pathspec settings"));
-
- if (flags & PATHSPEC_LITERAL_PATH)
- global_magic = 0;
-
- if (elt[0] != ':' || literal_global ||
+ if (elt[0] != ':' || get_literal_global() ||
(flags & PATHSPEC_LITERAL_PATH)) {
; /* nothing to do */
} else if (elt[1] == '(') {
@@ -207,15 +242,11 @@ static unsigned prefix_pathspec(struct pathspec_item *item, unsigned flags,
magic |= element_magic;
- /* --noglob-pathspec adds :(literal) _unless_ :(glob) is specified */
- if (noglob_global && !(magic & PATHSPEC_GLOB))
- global_magic |= PATHSPEC_LITERAL;
-
- /* --glob-pathspec is overridden by :(literal) */
- if ((global_magic & PATHSPEC_GLOB) && (magic & PATHSPEC_LITERAL))
- global_magic &= ~PATHSPEC_GLOB;
-
- magic |= global_magic;
+ /* PATHSPEC_LITERAL_PATH ignores magic */
+ if (flags & PATHSPEC_LITERAL_PATH)
+ magic = PATHSPEC_LITERAL;
+ else
+ magic |= get_global_magic(element_magic);
if (pathspec_prefix >= 0 &&
(prefixlen || (prefix && *prefix)))
@@ -241,7 +272,7 @@ static unsigned prefix_pathspec(struct pathspec_item *item, unsigned flags,
* original. Useful for passing to another command.
*/
if ((flags & PATHSPEC_PREFIX_ORIGIN) &&
- prefixlen && !literal_global) {
+ prefixlen && !get_literal_global()) {
struct strbuf sb = STRBUF_INIT;
/* Preserve the actual prefix length of each pattern */
@@ -407,9 +438,7 @@ void parse_pathspec(struct pathspec *pathspec,
item[i].magic = prefix_pathspec(item + i, flags,
prefix, prefixlen, entry);
- if ((flags & PATHSPEC_LITERAL_PATH) &&
- !(magic_mask & PATHSPEC_LITERAL))
- item[i].magic |= PATHSPEC_LITERAL;
+
if (item[i].magic & PATHSPEC_EXCLUDE)
nr_exclude++;
if (item[i].magic & magic_mask)
--
2.8.0.rc3.226.g39d4020
^ permalink raw reply related
* [PATCH v2 11/16] pathspec: create parse_short_magic function
From: Brandon Williams @ 2016-12-08 18:59 UTC (permalink / raw)
To: git; +Cc: Brandon Williams, sbeller, pclouds, gitster
In-Reply-To: <1481223550-65277-1-git-send-email-bmwill@google.com>
Factor out the logic responsible for parsing short magic into its own
function.
Signed-off-by: Brandon Williams <bmwill@google.com>
---
pathspec.c | 54 ++++++++++++++++++++++++++++++++++++------------------
1 file changed, 36 insertions(+), 18 deletions(-)
diff --git a/pathspec.c b/pathspec.c
index 523d7bf..29054d2 100644
--- a/pathspec.c
+++ b/pathspec.c
@@ -157,6 +157,41 @@ static int get_global_magic(int element_magic)
}
/*
+ * Parse the pathspec element looking for short magic
+ *
+ * saves all magic in 'magic'
+ * returns the position in 'elem' after all magic has been parsed
+ */
+static const char *parse_short_magic(unsigned *magic, const char *elem)
+{
+ const char *pos;
+
+ for (pos = elem + 1; *pos && *pos != ':'; pos++) {
+ char ch = *pos;
+ int i;
+
+ if (!is_pathspec_magic(ch))
+ break;
+
+ for (i = 0; i < ARRAY_SIZE(pathspec_magic); i++) {
+ if (pathspec_magic[i].mnemonic == ch) {
+ *magic |= pathspec_magic[i].bit;
+ break;
+ }
+ }
+
+ if (ARRAY_SIZE(pathspec_magic) <= i)
+ die(_("Unimplemented pathspec magic '%c' in '%s'"),
+ ch, elem);
+ }
+
+ if (*pos == ':')
+ pos++;
+
+ return pos;
+}
+
+/*
* Take an element of a pathspec and check for magic signatures.
* Append the result to the prefix. Return the magic bitmap.
*
@@ -220,24 +255,7 @@ static unsigned prefix_pathspec(struct pathspec_item *item, unsigned flags,
copyfrom++;
} else {
/* shorthand */
- for (copyfrom = elt + 1;
- *copyfrom && *copyfrom != ':';
- copyfrom++) {
- char ch = *copyfrom;
-
- if (!is_pathspec_magic(ch))
- break;
- for (i = 0; i < ARRAY_SIZE(pathspec_magic); i++)
- if (pathspec_magic[i].mnemonic == ch) {
- element_magic |= pathspec_magic[i].bit;
- break;
- }
- if (ARRAY_SIZE(pathspec_magic) <= i)
- die(_("Unimplemented pathspec magic '%c' in '%s'"),
- ch, elt);
- }
- if (*copyfrom == ':')
- copyfrom++;
+ copyfrom = parse_short_magic(&element_magic, elt);
}
magic |= element_magic;
--
2.8.0.rc3.226.g39d4020
^ permalink raw reply related
* [PATCH v2 06/16] pathspec: copy and free owned memory
From: Brandon Williams @ 2016-12-08 18:59 UTC (permalink / raw)
To: git; +Cc: Brandon Williams, sbeller, pclouds, gitster
In-Reply-To: <1481223550-65277-1-git-send-email-bmwill@google.com>
The 'original' string entry in a pathspec_item is only duplicated some
of the time, instead always make a copy of the original and take
ownership of the memory.
Since both 'match' and 'original' string entries in a pathspec_item are
owned by the pathspec struct, they need to be freed when clearing the
pathspec struct (in 'clear_pathspec()') and duplicated when copying the
pathspec struct (in 'copy_pathspec()').
Also change the type of 'match' and 'original' to 'char *' in order to
more explicitly show the ownership of the memory.
Signed-off-by: Brandon Williams <bmwill@google.com>
---
pathspec.c | 22 ++++++++++++++++++----
pathspec.h | 4 ++--
2 files changed, 20 insertions(+), 6 deletions(-)
diff --git a/pathspec.c b/pathspec.c
index 1f918cb..8f367f0 100644
--- a/pathspec.c
+++ b/pathspec.c
@@ -259,8 +259,9 @@ static unsigned prefix_pathspec(struct pathspec_item *item,
}
strbuf_addstr(&sb, match);
item->original = strbuf_detach(&sb, NULL);
- } else
- item->original = elt;
+ } else {
+ item->original = xstrdup(elt);
+ }
item->len = strlen(item->match);
item->prefix = prefixlen;
@@ -388,8 +389,8 @@ void parse_pathspec(struct pathspec *pathspec,
die("BUG: PATHSPEC_PREFER_CWD requires arguments");
pathspec->items = item = xcalloc(1, sizeof(*item));
- item->match = prefix;
- item->original = prefix;
+ item->match = xstrdup(prefix);
+ item->original = xstrdup(prefix);
item->nowildcard_len = item->len = strlen(prefix);
item->prefix = item->len;
pathspec->nr = 1;
@@ -453,13 +454,26 @@ void parse_pathspec(struct pathspec *pathspec,
void copy_pathspec(struct pathspec *dst, const struct pathspec *src)
{
+ int i;
+
*dst = *src;
ALLOC_ARRAY(dst->items, dst->nr);
COPY_ARRAY(dst->items, src->items, dst->nr);
+
+ for (i = 0; i < dst->nr; i++) {
+ dst->items[i].match = xstrdup(src->items[i].match);
+ dst->items[i].original = xstrdup(src->items[i].original);
+ }
}
void clear_pathspec(struct pathspec *pathspec)
{
+ int i;
+
+ for (i = 0; i < pathspec->nr; i++) {
+ free(pathspec->items[i].match);
+ free(pathspec->items[i].original);
+ }
free(pathspec->items);
pathspec->items = NULL;
}
diff --git a/pathspec.h b/pathspec.h
index 70a592e..49fd823 100644
--- a/pathspec.h
+++ b/pathspec.h
@@ -25,8 +25,8 @@ struct pathspec {
unsigned magic;
int max_depth;
struct pathspec_item {
- const char *match;
- const char *original;
+ char *match;
+ char *original;
unsigned magic;
int len, prefix;
int nowildcard_len;
--
2.8.0.rc3.226.g39d4020
^ permalink raw reply related
* [PATCH v2 03/16] dir: convert fill_directory to use the pathspec struct interface
From: Brandon Williams @ 2016-12-08 18:58 UTC (permalink / raw)
To: git; +Cc: Brandon Williams, sbeller, pclouds, gitster
In-Reply-To: <1481223550-65277-1-git-send-email-bmwill@google.com>
Convert 'fill_directory()' to use the pathspec struct interface from
using the '_raw' entry in the pathspec struct.
Signed-off-by: Brandon Williams <bmwill@google.com>
---
dir.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/dir.c b/dir.c
index 7df292b..a50b6f0 100644
--- a/dir.c
+++ b/dir.c
@@ -179,17 +179,21 @@ char *common_prefix(const struct pathspec *pathspec)
int fill_directory(struct dir_struct *dir, const struct pathspec *pathspec)
{
- size_t len;
+ char *prefix;
+ size_t prefix_len;
/*
* Calculate common prefix for the pathspec, and
* use that to optimize the directory walk
*/
- len = common_prefix_len(pathspec);
+ prefix = common_prefix(pathspec);
+ prefix_len = prefix ? strlen(prefix) : 0;
/* Read the directory and prune it */
- read_directory(dir, pathspec->nr ? pathspec->_raw[0] : "", len, pathspec);
- return len;
+ read_directory(dir, prefix, prefix_len, pathspec);
+
+ free(prefix);
+ return prefix_len;
}
int within_depth(const char *name, int namelen,
--
2.8.0.rc3.226.g39d4020
^ permalink raw reply related
* [PATCH v2 02/16] dir: convert create_simplify to use the pathspec struct interface
From: Brandon Williams @ 2016-12-08 18:58 UTC (permalink / raw)
To: git; +Cc: Brandon Williams, sbeller, pclouds, gitster
In-Reply-To: <1481223550-65277-1-git-send-email-bmwill@google.com>
Convert 'create_simplify()' to use the pathspec struct interface from
using the '_raw' entry in the pathspec.
Signed-off-by: Brandon Williams <bmwill@google.com>
---
dir.c | 25 ++++++++++++-------------
1 file changed, 12 insertions(+), 13 deletions(-)
diff --git a/dir.c b/dir.c
index bfa8c8a..7df292b 100644
--- a/dir.c
+++ b/dir.c
@@ -1787,25 +1787,24 @@ static int cmp_name(const void *p1, const void *p2)
return name_compare(e1->name, e1->len, e2->name, e2->len);
}
-static struct path_simplify *create_simplify(const char **pathspec)
+static struct path_simplify *create_simplify(const struct pathspec *pathspec)
{
- int nr, alloc = 0;
+ int i;
struct path_simplify *simplify = NULL;
- if (!pathspec)
+ if (!pathspec || !pathspec->nr)
return NULL;
- for (nr = 0 ; ; nr++) {
+ ALLOC_ARRAY(simplify, pathspec->nr + 1);
+ for (i = 0; i < pathspec->nr; i++) {
const char *match;
- ALLOC_GROW(simplify, nr + 1, alloc);
- match = *pathspec++;
- if (!match)
- break;
- simplify[nr].path = match;
- simplify[nr].len = simple_length(match);
+ match = pathspec->items[i].match;
+ simplify[i].path = match;
+ simplify[i].len = pathspec->items[i].nowildcard_len;
}
- simplify[nr].path = NULL;
- simplify[nr].len = 0;
+ simplify[i].path = NULL;
+ simplify[i].len = 0;
+
return simplify;
}
@@ -2036,7 +2035,7 @@ int read_directory(struct dir_struct *dir, const char *path, int len, const stru
* subset of positive ones, which has no impacts on
* create_simplify().
*/
- simplify = create_simplify(pathspec ? pathspec->_raw : NULL);
+ simplify = create_simplify(pathspec);
untracked = validate_untracked_cache(dir, len, pathspec);
if (!untracked)
/*
--
2.8.0.rc3.226.g39d4020
^ permalink raw reply related
* [PATCH v2 01/16] mv: remove use of deprecated 'get_pathspec()'
From: Brandon Williams @ 2016-12-08 18:58 UTC (permalink / raw)
To: git; +Cc: Brandon Williams, sbeller, pclouds, gitster
In-Reply-To: <1481223550-65277-1-git-send-email-bmwill@google.com>
Convert the 'internal_copy_pathspec()' function to 'prefix_path()'
instead of using the deprecated 'get_pathspec()' interface. Also,
rename 'internal_copy_pathspec()' to 'internal_prefix_pathspec()' to be
more descriptive of what the funciton is actually doing.
In addition to this, fix a memory leak caused by only duplicating some
of the pathspec elements. Instead always duplicate all of the the
pathspec elements as an intermediate step (with modificationed based on
the passed in flags). This way the intermediate strings can then be
freed after getting the result from 'prefix_path()'.
Signed-off-by: Brandon Williams <bmwill@google.com>
---
builtin/mv.c | 50 +++++++++++++++++++++++++++++++-------------------
1 file changed, 31 insertions(+), 19 deletions(-)
diff --git a/builtin/mv.c b/builtin/mv.c
index 2f43877..4e86dc5 100644
--- a/builtin/mv.c
+++ b/builtin/mv.c
@@ -4,6 +4,7 @@
* Copyright (C) 2006 Johannes Schindelin
*/
#include "builtin.h"
+#include "pathspec.h"
#include "lockfile.h"
#include "dir.h"
#include "cache-tree.h"
@@ -19,31 +20,42 @@ static const char * const builtin_mv_usage[] = {
#define DUP_BASENAME 1
#define KEEP_TRAILING_SLASH 2
-static const char **internal_copy_pathspec(const char *prefix,
- const char **pathspec,
- int count, unsigned flags)
+static const char **internal_prefix_pathspec(const char *prefix,
+ const char **pathspec,
+ int count, unsigned flags)
{
int i;
const char **result;
+ int prefixlen = prefix ? strlen(prefix) : 0;
ALLOC_ARRAY(result, count + 1);
- COPY_ARRAY(result, pathspec, count);
- result[count] = NULL;
+
+ /* Create an intermediate copy of the pathspec based on the flags */
for (i = 0; i < count; i++) {
- int length = strlen(result[i]);
+ int length = strlen(pathspec[i]);
int to_copy = length;
+ char *it;
while (!(flags & KEEP_TRAILING_SLASH) &&
- to_copy > 0 && is_dir_sep(result[i][to_copy - 1]))
+ to_copy > 0 && is_dir_sep(pathspec[i][to_copy - 1]))
to_copy--;
- if (to_copy != length || flags & DUP_BASENAME) {
- char *it = xmemdupz(result[i], to_copy);
- if (flags & DUP_BASENAME) {
- result[i] = xstrdup(basename(it));
- free(it);
- } else
- result[i] = it;
+
+ it = xmemdupz(pathspec[i], to_copy);
+ if (flags & DUP_BASENAME) {
+ result[i] = xstrdup(basename(it));
+ free(it);
+ } else {
+ result[i] = it;
}
}
- return get_pathspec(prefix, result);
+ result[count] = NULL;
+
+ /* Prefix the pathspec and free the old intermediate strings */
+ for (i = 0; i < count; i++) {
+ const char *match = prefix_path(prefix, prefixlen, result[i]);
+ free((char *) result[i]);
+ result[i] = match;
+ }
+
+ return result;
}
static const char *add_slash(const char *path)
@@ -130,7 +142,7 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
if (read_cache() < 0)
die(_("index file corrupt"));
- source = internal_copy_pathspec(prefix, argv, argc, 0);
+ source = internal_prefix_pathspec(prefix, argv, argc, 0);
modes = xcalloc(argc, sizeof(enum update_mode));
/*
* Keep trailing slash, needed to let
@@ -140,16 +152,16 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
flags = KEEP_TRAILING_SLASH;
if (argc == 1 && is_directory(argv[0]) && !is_directory(argv[1]))
flags = 0;
- dest_path = internal_copy_pathspec(prefix, argv + argc, 1, flags);
+ dest_path = internal_prefix_pathspec(prefix, argv + argc, 1, flags);
submodule_gitfile = xcalloc(argc, sizeof(char *));
if (dest_path[0][0] == '\0')
/* special case: "." was normalized to "" */
- destination = internal_copy_pathspec(dest_path[0], argv, argc, DUP_BASENAME);
+ destination = internal_prefix_pathspec(dest_path[0], argv, argc, DUP_BASENAME);
else if (!lstat(dest_path[0], &st) &&
S_ISDIR(st.st_mode)) {
dest_path[0] = add_slash(dest_path[0]);
- destination = internal_copy_pathspec(dest_path[0], argv, argc, DUP_BASENAME);
+ destination = internal_prefix_pathspec(dest_path[0], argv, argc, DUP_BASENAME);
} else {
if (argc != 1)
die(_("destination '%s' is not a directory"), dest_path[0]);
--
2.8.0.rc3.226.g39d4020
^ permalink raw reply related
* [PATCH v2 00/16] pathspec cleanup
From: Brandon Williams @ 2016-12-08 18:58 UTC (permalink / raw)
To: git; +Cc: Brandon Williams, sbeller, pclouds, gitster
In-Reply-To: <1481061106-117775-1-git-send-email-bmwill@google.com>
v2 of this series addresses the comments brought up in v1, most of which were
small cosmetic changes (since this is mostly a cosmetic series to begin with).
Brandon Williams (16):
mv: remove use of deprecated 'get_pathspec()'
dir: convert create_simplify to use the pathspec struct interface
dir: convert fill_directory to use the pathspec struct interface
ls-tree: convert show_recursive to use the pathspec struct interface
pathspec: remove the deprecated get_pathspec function
pathspec: copy and free owned memory
pathspec: remove unused variable from unsupported_magic
pathspec: always show mnemonic and name in unsupported_magic
pathspec: simpler logic to prefix original pathspec elements
pathspec: factor global magic into its own function
pathspec: create parse_short_magic function
pathspec: create parse_long_magic function
pathspec: create parse_element_magic helper
pathspec: create strip submodule slash helpers
pathspec: small readability changes
pathspec: rename prefix_pathspec to init_pathspec_item
Documentation/technical/api-setup.txt | 2 -
builtin/ls-tree.c | 16 +-
builtin/mv.c | 50 ++--
cache.h | 1 -
dir.c | 37 +--
pathspec.c | 468 +++++++++++++++++++---------------
pathspec.h | 5 +-
7 files changed, 317 insertions(+), 262 deletions(-)
--- interdiff from v1
diff --git a/builtin/ls-tree.c b/builtin/ls-tree.c
index e0f4307..d7ebeb4 100644
--- a/builtin/ls-tree.c
+++ b/builtin/ls-tree.c
@@ -173,8 +173,8 @@ int cmd_ls_tree(int argc, const char **argv, const char *prefix)
* cannot be lifted until it is converted to use
* match_pathspec() or tree_entry_interesting()
*/
- parse_pathspec(&pathspec, PATHSPEC_GLOB | PATHSPEC_ICASE |
- PATHSPEC_EXCLUDE,
+ parse_pathspec(&pathspec, PATHSPEC_ALL_MAGIC &
+ ~(PATHSPEC_FROMTOP | PATHSPEC_LITERAL),
PATHSPEC_PREFER_CWD,
prefix, argv + 1);
for (i = 0; i < pathspec.nr; i++)
diff --git a/builtin/mv.c b/builtin/mv.c
index b7cceb6..4e86dc5 100644
--- a/builtin/mv.c
+++ b/builtin/mv.c
@@ -20,13 +20,13 @@ static const char * const builtin_mv_usage[] = {
#define DUP_BASENAME 1
#define KEEP_TRAILING_SLASH 2
-static const char **internal_copy_pathspec(const char *prefix,
- const char **pathspec,
- int count, unsigned flags)
+static const char **internal_prefix_pathspec(const char *prefix,
+ const char **pathspec,
+ int count, unsigned flags)
{
int i;
const char **result;
- struct pathspec ps;
+ int prefixlen = prefix ? strlen(prefix) : 0;
ALLOC_ARRAY(result, count + 1);
/* Create an intermediate copy of the pathspec based on the flags */
@@ -42,25 +42,19 @@ static const char **internal_copy_pathspec(const char *prefix,
if (flags & DUP_BASENAME) {
result[i] = xstrdup(basename(it));
free(it);
- } else
+ } else {
result[i] = it;
+ }
}
result[count] = NULL;
- parse_pathspec(&ps,
- PATHSPEC_ALL_MAGIC &
- ~(PATHSPEC_FROMTOP | PATHSPEC_LITERAL),
- PATHSPEC_KEEP_ORDER | PATHSPEC_PREFER_CWD,
- prefix, result);
- assert(count == ps.nr);
-
- /* Copy the pathspec and free the old intermediate strings */
+ /* Prefix the pathspec and free the old intermediate strings */
for (i = 0; i < count; i++) {
+ const char *match = prefix_path(prefix, prefixlen, result[i]);
free((char *) result[i]);
- result[i] = xstrdup(ps.items[i].match);
+ result[i] = match;
}
- clear_pathspec(&ps);
return result;
}
@@ -148,7 +142,7 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
if (read_cache() < 0)
die(_("index file corrupt"));
- source = internal_copy_pathspec(prefix, argv, argc, 0);
+ source = internal_prefix_pathspec(prefix, argv, argc, 0);
modes = xcalloc(argc, sizeof(enum update_mode));
/*
* Keep trailing slash, needed to let
@@ -158,16 +152,16 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
flags = KEEP_TRAILING_SLASH;
if (argc == 1 && is_directory(argv[0]) && !is_directory(argv[1]))
flags = 0;
- dest_path = internal_copy_pathspec(prefix, argv + argc, 1, flags);
+ dest_path = internal_prefix_pathspec(prefix, argv + argc, 1, flags);
submodule_gitfile = xcalloc(argc, sizeof(char *));
if (dest_path[0][0] == '\0')
/* special case: "." was normalized to "" */
- destination = internal_copy_pathspec(dest_path[0], argv, argc, DUP_BASENAME);
+ destination = internal_prefix_pathspec(dest_path[0], argv, argc, DUP_BASENAME);
else if (!lstat(dest_path[0], &st) &&
S_ISDIR(st.st_mode)) {
dest_path[0] = add_slash(dest_path[0]);
- destination = internal_copy_pathspec(dest_path[0], argv, argc, DUP_BASENAME);
+ destination = internal_prefix_pathspec(dest_path[0], argv, argc, DUP_BASENAME);
} else {
if (argc != 1)
die(_("destination '%s' is not a directory"), dest_path[0]);
diff --git a/dir.c b/dir.c
index 8730a4f..a50b6f0 100644
--- a/dir.c
+++ b/dir.c
@@ -179,18 +179,21 @@ char *common_prefix(const struct pathspec *pathspec)
int fill_directory(struct dir_struct *dir, const struct pathspec *pathspec)
{
- size_t len;
+ char *prefix;
+ size_t prefix_len;
/*
* Calculate common prefix for the pathspec, and
* use that to optimize the directory walk
*/
- len = common_prefix_len(pathspec);
+ prefix = common_prefix(pathspec);
+ prefix_len = prefix ? strlen(prefix) : 0;
/* Read the directory and prune it */
- read_directory(dir, pathspec->nr ? pathspec->items[0].match : "",
- len, pathspec);
- return len;
+ read_directory(dir, prefix, prefix_len, pathspec);
+
+ free(prefix);
+ return prefix_len;
}
int within_depth(const char *name, int namelen,
diff --git a/pathspec.c b/pathspec.c
index 66db257..08abdd3 100644
--- a/pathspec.c
+++ b/pathspec.c
@@ -89,41 +89,42 @@ static void prefix_magic(struct strbuf *sb, int prefixlen, unsigned magic)
static inline int get_literal_global(void)
{
- static int literal_global = -1;
+ static int literal = -1;
- if (literal_global < 0)
- literal_global = git_env_bool(GIT_LITERAL_PATHSPECS_ENVIRONMENT,
- 0);
- return literal_global;
+ if (literal < 0)
+ literal = git_env_bool(GIT_LITERAL_PATHSPECS_ENVIRONMENT, 0);
+
+ return literal;
}
static inline int get_glob_global(void)
{
- static int glob_global = -1;
+ static int glob = -1;
+
+ if (glob < 0)
+ glob = git_env_bool(GIT_GLOB_PATHSPECS_ENVIRONMENT, 0);
- if (glob_global < 0)
- glob_global = git_env_bool(GIT_GLOB_PATHSPECS_ENVIRONMENT, 0);
- return glob_global;
+ return glob;
}
static inline int get_noglob_global(void)
{
- static int noglob_global = -1;
+ static int noglob = -1;
+
+ if (noglob < 0)
+ noglob = git_env_bool(GIT_NOGLOB_PATHSPECS_ENVIRONMENT, 0);
- if (noglob_global < 0)
- noglob_global = git_env_bool(GIT_NOGLOB_PATHSPECS_ENVIRONMENT,
- 0);
- return noglob_global;
+ return noglob;
}
static inline int get_icase_global(void)
{
- static int icase_global = -1;
+ static int icase = -1;
- if (icase_global < 0)
- icase_global = git_env_bool(GIT_ICASE_PATHSPECS_ENVIRONMENT, 0);
+ if (icase < 0)
+ icase = git_env_bool(GIT_ICASE_PATHSPECS_ENVIRONMENT, 0);
- return icase_global;
+ return icase;
}
static int get_global_magic(int element_magic)
@@ -296,13 +297,11 @@ static void strip_submodule_slash_expensive(struct pathspec_item *item)
}
/*
- * Take an element of a pathspec and check for magic signatures.
- * Append the result to the prefix. Return the magic bitmap.
+ * Perform the initialization of a pathspec_item based on a pathspec element.
*/
-static unsigned prefix_pathspec(struct pathspec_item *item,
- unsigned flags,
- const char *prefix, int prefixlen,
- const char *elt)
+static void init_pathspec_item(struct pathspec_item *item, unsigned flags,
+ const char *prefix, int prefixlen,
+ const char *elt)
{
unsigned magic = 0, element_magic = 0;
const char *copyfrom = elt;
@@ -310,7 +309,9 @@ static unsigned prefix_pathspec(struct pathspec_item *item,
int pathspec_prefix = -1;
/* PATHSPEC_LITERAL_PATH ignores magic */
- if (!(flags & PATHSPEC_LITERAL_PATH)) {
+ if (flags & PATHSPEC_LITERAL_PATH) {
+ magic = PATHSPEC_LITERAL;
+ } else {
copyfrom = parse_element_magic(&element_magic,
&pathspec_prefix,
elt);
@@ -318,6 +319,8 @@ static unsigned prefix_pathspec(struct pathspec_item *item,
magic |= get_global_magic(element_magic);
}
+ item->magic = magic;
+
if (pathspec_prefix >= 0 &&
(prefixlen || (prefix && *prefix)))
die("BUG: 'prefix' magic is supposed to be used at worktree's root");
@@ -390,7 +393,6 @@ static unsigned prefix_pathspec(struct pathspec_item *item,
/* sanity checks, pathspec matchers assume these are sane */
assert(item->nowildcard_len <= item->len &&
item->prefix <= item->len);
- return magic;
}
static int pathspec_item_cmp(const void *a_, const void *b_)
@@ -489,17 +491,12 @@ void parse_pathspec(struct pathspec *pathspec,
for (i = 0; i < n; i++) {
entry = argv[i];
- item[i].magic = prefix_pathspec(item + i,
- flags,
- prefix, prefixlen, entry);
- if ((flags & PATHSPEC_LITERAL_PATH) &&
- !(magic_mask & PATHSPEC_LITERAL))
- item[i].magic |= PATHSPEC_LITERAL;
+ init_pathspec_item(item + i, flags, prefix, prefixlen, entry);
+
if (item[i].magic & PATHSPEC_EXCLUDE)
nr_exclude++;
if (item[i].magic & magic_mask)
- unsupported_magic(entry,
- item[i].magic & magic_mask);
+ unsupported_magic(entry, item[i].magic & magic_mask);
if ((flags & PATHSPEC_SYMLINK_LEADING_PATH) &&
has_symlink_leading_path(item[i].match, item[i].len)) {
--
2.8.0.rc3.226.g39d4020
^ permalink raw reply related
* Re: [PATCH 2/2] ref-filter: add function to parse atoms from a nul-terminated string
From: SZEDER Gábor @ 2016-12-08 18:58 UTC (permalink / raw)
To: Junio C Hamano; +Cc: git, SZEDER Gábor
In-Reply-To: <20161207160923.7028-3-szeder.dev@gmail.com>
On Wed, Dec 7, 2016 at 5:09 PM, SZEDER Gábor <szeder.dev@gmail.com> wrote:
> ref-filter's parse_ref_filter_atom() function parses an atom between
> the start and end pointers it gets as arguments. This is fine for two
> of its callers, which process '%(atom)' format specifiers and the end
> pointer comes directly from strchr() looking for the closing ')'.
> However, it's not quite so straightforward for its other two callers,
> which process sort specifiers given as plain nul-terminated strings.
> Especially not for ref_default_sorting(), which has the default
> hard-coded as a string literal, but can't use it directly, because a
> pointer to the end of that string literal is needed as well.
> The next patch will add yet another caller using a string literal.
Oops, that last sentence should be deleted, there is no third patch, sorry.
Gábor
^ permalink raw reply
* Re: [PATCH v8 00/19] port branch.c to use ref-filter's printing options
From: Junio C Hamano @ 2016-12-08 18:58 UTC (permalink / raw)
To: Jacob Keller; +Cc: Karthik Nayak, Git mailing list, Jakub Narębski
In-Reply-To: <CA+P7+xquordVY19dypqNcAuQqoRbFmHhzb0w+HXCaJmm_Ex7zQ@mail.gmail.com>
Jacob Keller <jacob.keller@gmail.com> writes:
>> + are left behind. If a displayed ref has fewer components than
>> + `<N>`, the command aborts with an error.
>>
>
> Would it make more sense to not die and instead just return the empty
> string? On the one hand, if we die() it's obvious that you tried to
> strip too many components. But on the other hand, it's also somewhat
> annoying to have the whole command fail because we happen upon a
> single ref that has fewer components?
>
> So, for positive numbers, we simply strip what we can, which may
> result in the empty string, and for negative numbers, we keep up to
> what we said, while potentially keeping the entire string. I feel
> that's a better alternative than a die() in the middle of a ref
> filter..
>
> What are other people's thoughts on this?
There probably are three ways to handle a formatting request that
cannot be satisfied for some refs but not others [*1*]. I agree
with you that dying the whole thing is probably the least useful
one.
We already format "%(taggername)" into an empty string when the ref
points at an object that is not an annotated tag, and substituting
an unsatisifiable request "%(refname:lstrip=N)" with an empty string
for a ref whose name does not have enough number of components is in
line with that existing practice.
The other possibility is to omit refs that cannot be formatted
according to the format specifier. We do not currently have
provision for doing so, but it may not be bad if we can say:
$ git for-each-ref \
--require="%(taggername)" \
--require="%(refname:lstrip=4)" \
--format="%(refname:short)" \
refs/tags/
to list _only_ annotated tags that has at least 4 components from
refs/tags/ hierarchy.
The "--require" thing obviously is an orthogonal feature, that
nobody has asked for, and does not have to exist. For the purpose
of this review thread, I think it is OK to just conclude:
"--format" should replace "%(any unsatisifiable atom)" with an
empty string.
Thanks.
[Footnote]
*1* A malformed formatting request (e.g. %(if) that is not closed)
cannot be satisified but that is true for all refs and is
outside of the scope of this discussion. The command should die
and I think it already does.
^ permalink raw reply
* Re: [PATCHv6 4/7] worktree: get worktrees from submodules
From: Stefan Beller @ 2016-12-08 18:55 UTC (permalink / raw)
To: Duy Nguyen; +Cc: Brandon Williams, Git Mailing List, Junio C Hamano
In-Reply-To: <CACsJy8Bs78ywGq5p6yAFGi1KACAXFEeroyQSJye5-RL5gqOS+Q@mail.gmail.com>
On Thu, Dec 8, 2016 at 2:09 AM, Duy Nguyen <pclouds@gmail.com> wrote:
> On Thu, Dec 8, 2016 at 8:46 AM, Stefan Beller <sbeller@google.com> wrote:
>>
>> worktree = xcalloc(1, sizeof(*worktree));
>> worktree->path = strbuf_detach(&worktree_path, NULL);
>> @@ -101,7 +101,8 @@ static struct worktree *get_main_worktree(void)
>
> All the good stuff is outside context lines again.. Somewhere between
> here we call add_head_info() which calls resolve_ref_unsafe(), which
> always uses data from current repo, not the submodule we want it to
> look at.
Unrelated side question: What would you think of "variable context line
configuration" ? e.g. you could configure it to include anything from
up that line
that is currently shown after the @@ which is the function signature line.
As to the add_head_info/resolve_ref_unsafe what impact does that have?
It produces a wrong head info but AFAICT it will never die(), such that for the
purposes of this series (which only wants to know if a submodule uses the
worktree feature) it should be fine.
It is highly misleading though for others to build upon this.
So maybe I'll only add the functionality internally in worktree.c
and document why the values are wrong, and only expose the
"int submodule_uses_worktrees(const char *path)" ?
>> @@ -209,6 +211,30 @@ struct worktree **get_worktrees(unsigned flags)
>> return list;
>
> Right before this line is mark_current_worktree(), which in turn calls
> get_git_dir() and not suitable for peeking into another repository the
> way submodule code does. get_worktree_git_dir() called within that
> function shares the same problem.
It actually works correctly: "No submodule is the current worktree".
>
>> }
>>
>> +struct worktree **get_worktrees(unsigned flags)
>> +{
>> + return get_worktrees_internal(get_git_common_dir(), flags);
>> +}
>> +
>> +struct worktree **get_submodule_worktrees(const char *path, unsigned flags)
>> +{
>> + char *submodule_gitdir;
>> + struct strbuf sb = STRBUF_INIT;
>> + struct worktree **ret;
>> +
>> + submodule_gitdir = git_pathdup_submodule(path, "%s", "");
>> + if (!submodule_gitdir)
>> + return NULL;
>> +
>> + /* the env would be set for the superproject */
>> + get_common_dir_noenv(&sb, submodule_gitdir);
>
> Technically we need to read submodule_gitdir/.config and see if we can
> understand core.repositoryformatversion, or find any unrecognized
> extensions. But the problem is not specific to this code. And fixing
> it is no small task. But perhaps we could call a dummy
> validate_submodule_gitdir() here? Then when we implement that function
> for real, we don't have to search the entire code base to see where to
> put it.
>
> Kinda off-topic though. Feel free to ignore the above comment.
ok I'll add a TODO/emptyfunction for that.
Thanks for the review!
Stefan
^ permalink raw reply
* Re: [PATCH] submodule--helper: set alternateLocation for cloned submodules
From: Jeff King @ 2016-12-08 18:53 UTC (permalink / raw)
To: vi0oss; +Cc: Stefan Beller, git@vger.kernel.org, Stefan Beller
In-Reply-To: <d445a6c3-5375-22cf-4f03-1717559f1157@gmail.com>
On Thu, Dec 08, 2016 at 09:04:46PM +0300, vi0oss wrote:
> Why Git test use &&-chains instead of proper "set -e"?
Because "set -e" comes with all kinds of confusing corner cases. Using
&& chains is annoying, but rarely surprising.
One of my favorite examples is:
set -e
(
false
echo 1
) || {
echo outcome=$?
false
}
echo 2
which prints both "1" and "2".
Inside the subshell, "set -e" has no effect, and you cannot re-enable it
by setting "-e" (it's suppressed entirely because we are on the
left-hand side of an || conditional).
So you could write a function like this:
foo() {
do_one
do_two
}
that relies on catching the failure from do_one. And it works here:
set -e
foo
but not here:
set -e
if foo then
do_something
fi
And there's no way to make it work without adding back in the
&&-chaining.
-Peff
^ permalink raw reply
* Re: [PATCH] real_path: make real_path thread-safe
From: Johannes Sixt @ 2016-12-08 18:41 UTC (permalink / raw)
To: Torsten Bögershausen
Cc: Brandon Williams, Junio C Hamano, Ramsay Jones, git, sbeller,
peff, jacob.keller
In-Reply-To: <20161208075555.GA23595@tb-raspi>
Am 08.12.2016 um 08:55 schrieb Torsten Bögershausen:
> Some conversion may be done in mingw.c:
> https://github.com/github/git-msysgit/blob/master/compat/mingw.c
> So what I understand, '/' in Git are already converted into '\' if needed ?
Only if needed, and there are not many places where this is the case.
(Actually, I can't find one place where we do.) In particular, typical
file accesses does not require the conversion.
> It seams that we may wnat a function get_start_of_path(uncpath),
> which returns:
>
> get_start_of_path_win("//?/D:/very-long-path") "/very-long-path"
We have offset_1st_component().
-- Hannes
^ permalink raw reply
* Re: [PATCH 3/3] lockfile: LOCK_REPORT_ON_ERROR
From: Junio C Hamano @ 2016-12-08 18:22 UTC (permalink / raw)
To: Johannes Schindelin; +Cc: git, Robbie Iannucci
In-Reply-To: <alpine.DEB.2.20.1612081252490.23160@virtualbox>
Johannes Schindelin <Johannes.Schindelin@gmx.de> writes:
> Sorry for the breakage.
Apologies from me, too. Once a topic is merged, the credit still
remains with the contributor, but the blame is shared by the project
as a whole, with those who missed breakages during their reviews,
and those who didn't review or test and let breakages pass.
> When libifying the code, I tried to be careful to retain the error
> messages when not dying,...
Quite honestly, I do not think either of us cared about preserving
the exact error message the end-user was getting from each failure
sites that the series changed a call with die-on-error=1 to a call
with die-on-error=0 that is followed by a negative return while
reviewing this series. As I wrote in the proposed log message for
3/3, this one was noticed as a end-user breaking change because it
was the only one that has become totally silent. For example, this
bit from sequencer.c::write_message() we can see in the output from
"git show --first-parent 2a4062a4a8" does not preserve the message
at all:
diff --git a/sequencer.c b/sequencer.c
index 3804fa931d..eec8a60d6b 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -180,17 +180,20 @@
...
-static void write_message(struct strbuf *msgbuf, const char *filename)
+static int write_message(struct strbuf *msgbuf, const char *filename)
{
static struct lock_file msg_file;
- int msg_fd = hold_lock_file_for_update(&msg_file, filename,
- LOCK_DIE_ON_ERROR);
+ int msg_fd = hold_lock_file_for_update(&msg_file, filename, 0);
+ if (msg_fd < 0)
+ return error_errno(_("Could not lock '%s'"), filename);
And I do not think it is necessarily bad that the error message
changed with this conversion. In other words, I do not think it
should have been the goal to preserve the exact error message.
hold_lock*() can afford to give a detailed message that strongly
sounds as being the final decision when called with die-on-error=1
because it knows it is dying. However, the message from the updated
write_message(), "could not lock", cannot be final---the caller may
want to add something else after it to describe what failed in a
larger picture.
^ permalink raw reply
* Re: [PATCH] submodule--helper: set alternateLocation for cloned submodules
From: Stefan Beller @ 2016-12-08 18:21 UTC (permalink / raw)
To: vi0oss; +Cc: Jeff King, git@vger.kernel.org, Stefan Beller
In-Reply-To: <d445a6c3-5375-22cf-4f03-1717559f1157@gmail.com>
On Thu, Dec 8, 2016 at 10:04 AM, vi0oss <vi0oss@gmail.com> wrote:
> On 12/08/2016 08:46 PM, Jeff King wrote:
>>
>> On Wed, Dec 07, 2016 at 05:22:30PM -0800, Stefan Beller wrote:
>>
>>> On Wed, Dec 7, 2016 at 4:39 PM, <vi0oss@gmail.com> wrote:
>>>
>>>> Previously test contained errorneous
>>>> test_must_fail, which was masked by
>>>> missing &&.
>>>
>>> I wonder if we could make either
>>> the test_must_fail intelligent to detect such a broken && call chain
>>> or the test_expect_success macro to see for those broken chains.
>>>
>>>
>>> I wish we could improve that, but I spend a lot of brain cycles on it at
>>> one point and couldn't come up with a workable solution.
>>>
>>> -Peff
>>>
> Why Git test use &&-chains instead of proper "set -e"?
>
"Because set -e kills the shell and we would want to keep going
until the test suite is finished and display a summary what failed"
would be my first reaction, but let's dig into history:
bb79af9d09 might be helpful on that, but it doesn't explain why
we use && chains.
I could not find any commit explaining the use of && chains.
e1970ce43abf might be interesting (the introduction of the test
suite), as that did not contain && chains.
I guess it would be hard(er) to implement e.g. test_must_fail
in an environment where -e is set.
^ permalink raw reply
* Re: [PATCH 02/17] dir: convert create_simplify to use the pathspec struct interface
From: Brandon Williams @ 2016-12-08 18:19 UTC (permalink / raw)
To: Duy Nguyen; +Cc: Git Mailing List, Stefan Beller, Junio C Hamano
In-Reply-To: <CACsJy8DtUwnOjBV49navkfgqPzEsNuX2LVaeVU=Ap2PWLpGFdA@mail.gmail.com>
On 12/08, Duy Nguyen wrote:
> On Thu, Dec 8, 2016 at 7:03 AM, Brandon Williams <bmwill@google.com> wrote:
> > On 12/07, Duy Nguyen wrote:
> >> On Wed, Dec 7, 2016 at 4:51 AM, Brandon Williams <bmwill@google.com> wrote:
> >> > Convert 'create_simplify()' to use the pathspec struct interface from
> >> > using the '_raw' entry in the pathspec.
> >>
> >> It would be even better to kill this create_simplify() and let
> >> simplify_away() handle struct pathspec directly.
> >>
> >> There is a bug in this code, that might have been found if we
> >> simpify_away() handled pathspec directly: the memcmp() in
> >> simplify_away() will not play well with :(icase) magic. My bad. If
> >> :(icase) is used, the easiest/safe way is simplify nothing. Later on
> >> maybe we can teach simplify_away() to do strncasecmp instead. We could
> >> ignore exclude patterns there too (although not excluding is not a
> >> bug).
> >
> > So are you implying that the simplify struct needs to be killed? That
> > way the pathspec struct itself is being passed around instead?
>
> Yes. simplify struct was a thing when pathspec was an array of char *.
> At this point I think it can retire (when we have time to retire it)
Alright, then for now I can leave this change as is and have a follow up
series that kills the simplify struct.
--
Brandon Williams
^ permalink raw reply
* Re: [PATCH 3/3] lockfile: LOCK_REPORT_ON_ERROR
From: Robbie Iannucci @ 2016-12-08 18:10 UTC (permalink / raw)
To: Johannes Schindelin; +Cc: Junio C Hamano, git
In-Reply-To: <alpine.DEB.2.20.1612081252490.23160@virtualbox>
Thanks all for taking a look at this, I didn't expect such a quick response :).
No hard feelings re: breakage; I know how gnarly these sorts of
refactors can be (and more libification is always better :)).
Robbie
On Thu, Dec 8, 2016 at 3:53 AM, Johannes Schindelin
<Johannes.Schindelin@gmx.de> wrote:
> Hi Junio,
>
> On Wed, 7 Dec 2016, Junio C Hamano wrote:
>
>> The "libify sequencer" topic stopped passing the die_on_error option
>> to hold_locked_index(), and this lost an error message from "git
>> merge --ff-only $commit" when there are competing updates in
>> progress.
>
> Sorry for the breakage.
>
> When libifying the code, I tried to be careful to retain the error
> messages when not dying, and mistakenly assumed that hold_locked_index()
> would do the same.
>
> Ciao,
> Dscho
^ permalink raw reply
* Re: [PATCH 01/17] mv: convert to using pathspec struct interface
From: Brandon Williams @ 2016-12-08 18:06 UTC (permalink / raw)
To: Duy Nguyen; +Cc: Git Mailing List, Stefan Beller, Junio C Hamano
In-Reply-To: <CACsJy8DVuOdRsu4x9iFTwweSVn=RRJYzBTm43ufBevTWMf4Qmg@mail.gmail.com>
On 12/08, Duy Nguyen wrote:
> On Thu, Dec 8, 2016 at 7:36 AM, Brandon Williams <bmwill@google.com> wrote:
> >> > @@ -25,25 +26,43 @@ static const char **internal_copy_pathspec(const char *prefix,
> >> > {
> >> > int i;
> >> > const char **result;
> >> > + struct pathspec ps;
> >> > ALLOC_ARRAY(result, count + 1);
> >> > - COPY_ARRAY(result, pathspec, count);
> >> > - result[count] = NULL;
> >> > +
> >> > + /* Create an intermediate copy of the pathspec based on the flags */
> >> > for (i = 0; i < count; i++) {
> >> > - int length = strlen(result[i]);
> >> > + int length = strlen(pathspec[i]);
> >> > int to_copy = length;
> >> > + char *it;
> >> > while (!(flags & KEEP_TRAILING_SLASH) &&
> >> > - to_copy > 0 && is_dir_sep(result[i][to_copy - 1]))
> >> > + to_copy > 0 && is_dir_sep(pathspec[i][to_copy - 1]))
> >> > to_copy--;
> >> > - if (to_copy != length || flags & DUP_BASENAME) {
> >> > - char *it = xmemdupz(result[i], to_copy);
> >> > - if (flags & DUP_BASENAME) {
> >> > - result[i] = xstrdup(basename(it));
> >> > - free(it);
> >> > - } else
> >> > - result[i] = it;
> >> > - }
> >> > +
> >> > + it = xmemdupz(pathspec[i], to_copy);
> >> > + if (flags & DUP_BASENAME) {
> >> > + result[i] = xstrdup(basename(it));
> >> > + free(it);
> >> > + } else
> >> > + result[i] = it;
> >> > + }
> >> > + result[count] = NULL;
> >> > +
> >> > + parse_pathspec(&ps,
> >> > + PATHSPEC_ALL_MAGIC &
> >> > + ~(PATHSPEC_FROMTOP | PATHSPEC_LITERAL),
> >> > + PATHSPEC_KEEP_ORDER | PATHSPEC_PREFER_CWD,
> >> > + prefix, result);
> >> > + assert(count == ps.nr);
> >> > +
> >> > + /* Copy the pathspec and free the old intermediate strings */
> >> > + for (i = 0; i < count; i++) {
> >> > + const char *match = xstrdup(ps.items[i].match);
> >> > + free((char *) result[i]);
> >> > + result[i] = match;
> >>
> >> Sigh.. it looks so weird that we do all the parsing (in a _copy_
> >> pathspec function) then remove struct pathspec and return the plain
> >> string. I guess we can't do anything more until we rework cmd_mv code
> >> to handle pathspec natively.
> >>
> >> At the least I think we should rename this function to something else.
> >> But if you have time I really wish we could kill this function. I
> >> haven't stared at cmd_mv() long and hard, but it looks to me that we
> >> combining two separate functionalities in the same function here.
> >>
> >> If "mv" takes n arguments, then the first <n-1> arguments may be
> >> pathspec, the last one is always a plain path. The "dest_path =
> >> internal_copy_pathspec..." could be as simple as "dest_path =
> >> prefix_path(argv[argc - 1])". the special treatment for this last
> >> argument [1] can live here. Then, we can do parse_pathspec for the
> >> <n-1> arguments in cmd_mv(). It's still far from perfect, because
> >> cmd_mv can't handle pathspec properly, but it reduces the messy mess
> >> in internal_copy_pathspec a bit, I hope.
> >>
> >
> > Actually, after looking at this a bit more it seems like we could
> > technically use prefix_path for both source and dest (based on how the
> > current code is structured) since the source's provied must all exist (as
> > in no wildcards are allowed). We could drop using the pathspec struct
> > completely in addition to renaming the function (to what I'm still
> > unsure).
>
> Yeah that sounds good too (with a caveat: I'm not a heavy user of
> git-mv nor touching this code a lot, I might be missing something).
> It'll take some looong time before somebody starts converting it to
> use pathspec properly, I guess. prefix_path() would keep the code
> clean meanwhile.
K for now I'll switch to using prefix_path() and rename the function
`internal_prefix_pathspec()` as that is a bit more descriptive.
--
Brandon Williams
^ permalink raw reply
* Re: [PATCH] submodule--helper: set alternateLocation for cloned submodules
From: vi0oss @ 2016-12-08 18:04 UTC (permalink / raw)
To: Jeff King; +Cc: Stefan Beller, git@vger.kernel.org, Stefan Beller
In-Reply-To: <20161208174633.bsktiflql6jpn5t3@sigill.intra.peff.net>
On 12/08/2016 08:46 PM, Jeff King wrote:
> On Wed, Dec 07, 2016 at 05:22:30PM -0800, Stefan Beller wrote:
>
>> On Wed, Dec 7, 2016 at 4:39 PM, <vi0oss@gmail.com> wrote:
>>
>>> Previously test contained errorneous
>>> test_must_fail, which was masked by
>>> missing &&.
>> I wonder if we could make either
>> the test_must_fail intelligent to detect such a broken && call chain
>> or the test_expect_success macro to see for those broken chains.
>>
>>
>> I wish we could improve that, but I spend a lot of brain cycles on it at
>> one point and couldn't come up with a workable solution.
>>
>> -Peff
>>
Why Git test use &&-chains instead of proper "set -e"?
^ permalink raw reply
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