diff options
| -rw-r--r-- | builtin-apply.c | 30 | ||||
| -rw-r--r-- | builtin-blame.c | 35 | ||||
| -rw-r--r-- | builtin-commit-tree.c | 60 | ||||
| -rw-r--r-- | diff.c | 27 |
4 files changed, 44 insertions, 108 deletions
diff --git a/builtin-apply.c b/builtin-apply.c index 976ec77041..90e328ef91 100644 --- a/builtin-apply.c +++ b/builtin-apply.c @@ -12,6 +12,7 @@ #include "blob.h" #include "delta.h" #include "builtin.h" +#include "strbuf.h" /* * --check turns on checking that the working tree matches the @@ -181,34 +182,21 @@ static void say_patch_name(FILE *output, const char *pre, struct patch *patch, c static void *read_patch_file(int fd, unsigned long *sizep) { - unsigned long size = 0, alloc = CHUNKSIZE; - void *buffer = xmalloc(alloc); + struct strbuf buf; - for (;;) { - ssize_t nr = alloc - size; - if (nr < 1024) { - alloc += CHUNKSIZE; - buffer = xrealloc(buffer, alloc); - nr = alloc - size; - } - nr = xread(fd, (char *) buffer + size, nr); - if (!nr) - break; - if (nr < 0) - die("git-apply: read returned %s", strerror(errno)); - size += nr; - } - *sizep = size; + strbuf_init(&buf); + if (strbuf_read(&buf, fd) < 0) + die("git-apply: read returned %s", strerror(errno)); + *sizep = buf.len; /* * Make sure that we have some slop in the buffer * so that we can do speculative "memcmp" etc, and * see to it that it is NUL-filled. */ - if (alloc < size + SLOP) - buffer = xrealloc(buffer, size + SLOP); - memset((char *) buffer + size, 0, SLOP); - return buffer; + strbuf_grow(&buf, SLOP); + memset(buf.buf + buf.len, 0, SLOP); + return strbuf_detach(&buf); } static unsigned long linelen(const char *buffer, unsigned long size) diff --git a/builtin-blame.c b/builtin-blame.c index dc88a953a5..1b1e6da853 100644 --- a/builtin-blame.c +++ b/builtin-blame.c @@ -18,6 +18,7 @@ #include "cache-tree.h" #include "path-list.h" #include "mailmap.h" +#include "strbuf.h" static char blame_usage[] = "git-blame [-c] [-b] [-l] [--root] [-t] [-f] [-n] [-s] [-p] [-w] [-L n,m] [-S <revs-file>] [-M] [-C] [-C] [--contents <filename>] [--incremental] [commit] [--] file\n" @@ -2001,11 +2002,10 @@ static struct commit *fake_working_tree_commit(const char *path, const char *con struct commit *commit; struct origin *origin; unsigned char head_sha1[20]; - char *buf; + struct strbuf buf; const char *ident; int fd; time_t now; - unsigned long fin_size; int size, len; struct cache_entry *ce; unsigned mode; @@ -2023,9 +2023,11 @@ static struct commit *fake_working_tree_commit(const char *path, const char *con origin = make_origin(commit, path); + strbuf_init(&buf); if (!contents_from || strcmp("-", contents_from)) { struct stat st; const char *read_from; + unsigned long fin_size; if (contents_from) { if (stat(contents_from, &st) < 0) @@ -2038,19 +2040,19 @@ static struct commit *fake_working_tree_commit(const char *path, const char *con read_from = path; } fin_size = xsize_t(st.st_size); - buf = xmalloc(fin_size+1); mode = canon_mode(st.st_mode); switch (st.st_mode & S_IFMT) { case S_IFREG: fd = open(read_from, O_RDONLY); if (fd < 0) die("cannot open %s", read_from); - if (read_in_full(fd, buf, fin_size) != fin_size) + if (strbuf_read(&buf, fd) != xsize_t(st.st_size)) die("cannot read %s", read_from); break; case S_IFLNK: - if (readlink(read_from, buf, fin_size+1) != fin_size) + if (readlink(read_from, buf.buf, buf.alloc) != fin_size) die("cannot readlink %s", read_from); + buf.len = fin_size; break; default: die("unsupported file type %s", read_from); @@ -2059,26 +2061,13 @@ static struct commit *fake_working_tree_commit(const char *path, const char *con else { /* Reading from stdin */ contents_from = "standard input"; - buf = NULL; - fin_size = 0; mode = 0; - while (1) { - ssize_t cnt = 8192; - buf = xrealloc(buf, fin_size + cnt); - cnt = xread(0, buf + fin_size, cnt); - if (cnt < 0) - die("read error %s from stdin", - strerror(errno)); - if (!cnt) - break; - fin_size += cnt; - } - buf = xrealloc(buf, fin_size + 1); + if (strbuf_read(&buf, 0) < 0) + die("read error %s from stdin", strerror(errno)); } - buf[fin_size] = 0; - origin->file.ptr = buf; - origin->file.size = fin_size; - pretend_sha1_file(buf, fin_size, OBJ_BLOB, origin->blob_sha1); + origin->file.ptr = buf.buf; + origin->file.size = buf.len; + pretend_sha1_file(buf.buf, buf.len, OBJ_BLOB, origin->blob_sha1); commit->util = origin; /* diff --git a/builtin-commit-tree.c b/builtin-commit-tree.c index ccbcbe30da..bc9502c135 100644 --- a/builtin-commit-tree.c +++ b/builtin-commit-tree.c @@ -8,42 +8,13 @@ #include "tree.h" #include "builtin.h" #include "utf8.h" +#include "strbuf.h" #define BLOCKING (1ul << 14) /* * FIXME! Share the code with "write-tree.c" */ -static void init_buffer(char **bufp, unsigned int *sizep) -{ - *bufp = xmalloc(BLOCKING); - *sizep = 0; -} - -static void add_buffer(char **bufp, unsigned int *sizep, const char *fmt, ...) -{ - char one_line[2048]; - va_list args; - int len; - unsigned long alloc, size, newsize; - char *buf; - - va_start(args, fmt); - len = vsnprintf(one_line, sizeof(one_line), fmt, args); - va_end(args); - size = *sizep; - newsize = size + len + 1; - alloc = (size + 32767) & ~32767; - buf = *bufp; - if (newsize > alloc) { - alloc = (newsize + 32767) & ~32767; - buf = xrealloc(buf, alloc); - *bufp = buf; - } - *sizep = newsize - 1; - memcpy(buf + size, one_line, len); -} - static void check_valid(unsigned char *sha1, enum object_type expect) { enum object_type type = sha1_object_info(sha1, NULL); @@ -87,9 +58,7 @@ int cmd_commit_tree(int argc, const char **argv, const char *prefix) int parents = 0; unsigned char tree_sha1[20]; unsigned char commit_sha1[20]; - char comment[1000]; - char *buffer; - unsigned int size; + struct strbuf buffer; int encoding_is_utf8; git_config(git_default_config); @@ -118,8 +87,9 @@ int cmd_commit_tree(int argc, const char **argv, const char *prefix) /* Not having i18n.commitencoding is the same as having utf-8 */ encoding_is_utf8 = is_encoding_utf8(git_commit_encoding); - init_buffer(&buffer, &size); - add_buffer(&buffer, &size, "tree %s\n", sha1_to_hex(tree_sha1)); + strbuf_init(&buffer); + strbuf_grow(&buffer, 8192); /* should avoid reallocs for the headers */ + strbuf_addf(&buffer, "tree %s\n", sha1_to_hex(tree_sha1)); /* * NOTE! This ordering means that the same exact tree merged with a @@ -127,26 +97,24 @@ int cmd_commit_tree(int argc, const char **argv, const char *prefix) * if everything else stays the same. */ for (i = 0; i < parents; i++) - add_buffer(&buffer, &size, "parent %s\n", sha1_to_hex(parent_sha1[i])); + strbuf_addf(&buffer, "parent %s\n", sha1_to_hex(parent_sha1[i])); /* Person/date information */ - add_buffer(&buffer, &size, "author %s\n", git_author_info(1)); - add_buffer(&buffer, &size, "committer %s\n", git_committer_info(1)); + strbuf_addf(&buffer, "author %s\n", git_author_info(1)); + strbuf_addf(&buffer, "committer %s\n", git_committer_info(1)); if (!encoding_is_utf8) - add_buffer(&buffer, &size, - "encoding %s\n", git_commit_encoding); - add_buffer(&buffer, &size, "\n"); + strbuf_addf(&buffer, "encoding %s\n", git_commit_encoding); + strbuf_addch(&buffer, '\n'); /* And add the comment */ - while (fgets(comment, sizeof(comment), stdin) != NULL) - add_buffer(&buffer, &size, "%s", comment); + if (strbuf_read(&buffer, 0) < 0) + die("git-commit-tree: read returned %s", strerror(errno)); /* And check the encoding */ - buffer[size] = '\0'; - if (encoding_is_utf8 && !is_utf8(buffer)) + if (encoding_is_utf8 && !is_utf8(buffer.buf)) fprintf(stderr, commit_utf8_warn); - if (!write_sha1_file(buffer, size, commit_type, commit_sha1)) { + if (!write_sha1_file(buffer.buf, buffer.len, commit_type, commit_sha1)) { printf("%s\n", sha1_to_hex(commit_sha1)); return 0; } @@ -9,6 +9,7 @@ #include "xdiff-interface.h" #include "color.h" #include "attr.h" +#include "strbuf.h" #ifdef NO_FAST_WORKING_DIRECTORY #define FAST_WORKING_DIRECTORY 0 @@ -1545,26 +1546,16 @@ static int reuse_worktree_file(const char *name, const unsigned char *sha1, int static int populate_from_stdin(struct diff_filespec *s) { -#define INCREMENT 1024 - char *buf; - unsigned long size; - ssize_t got; - - size = 0; - buf = NULL; - while (1) { - buf = xrealloc(buf, size + INCREMENT); - got = xread(0, buf + size, INCREMENT); - if (!got) - break; /* EOF */ - if (got < 0) - return error("error while reading from stdin %s", + struct strbuf buf; + + strbuf_init(&buf); + if (strbuf_read(&buf, 0) < 0) + return error("error while reading from stdin %s", strerror(errno)); - size += got; - } + s->should_munmap = 0; - s->data = buf; - s->size = size; + s->size = buf.len; + s->data = strbuf_detach(&buf); s->should_free = 1; return 0; } |