diff options
Diffstat (limited to 'entry.c')
| -rw-r--r-- | entry.c | 93 |
1 files changed, 66 insertions, 27 deletions
@@ -1,6 +1,7 @@ #include "cache.h" #include "blob.h" #include "dir.h" +#include "streaming.h" static void create_directories(const char *path, int path_len, const struct checkout *state) @@ -91,6 +92,48 @@ static void *read_blob_entry(struct cache_entry *ce, unsigned long *size) return NULL; } +static int open_output_fd(char *path, struct cache_entry *ce, int to_tempfile) +{ + int symlink = (ce->ce_mode & S_IFMT) != S_IFREG; + if (to_tempfile) { + strcpy(path, symlink + ? ".merge_link_XXXXXX" : ".merge_file_XXXXXX"); + return mkstemp(path); + } else { + return create_file(path, !symlink ? ce->ce_mode : 0666); + } +} + +static int fstat_output(int fd, const struct checkout *state, struct stat *st) +{ + /* use fstat() only when path == ce->name */ + if (fstat_is_reliable() && + state->refresh_cache && !state->base_dir_len) { + fstat(fd, st); + return 1; + } + return 0; +} + +static int streaming_write_entry(struct cache_entry *ce, char *path, + struct stream_filter *filter, + const struct checkout *state, int to_tempfile, + int *fstat_done, struct stat *statbuf) +{ + int result = -1; + int fd; + + fd = open_output_fd(path, ce, to_tempfile); + if (0 <= fd) { + result = stream_blob_to_fd(fd, ce->sha1, filter, 1); + *fstat_done = fstat_output(fd, state, statbuf); + result = close(fd); + } + if (result && 0 <= fd) + unlink(path); + return result; +} + static int write_entry(struct cache_entry *ce, char *path, const struct checkout *state, int to_tempfile) { unsigned int ce_mode_s_ifmt = ce->ce_mode & S_IFMT; @@ -101,19 +144,28 @@ static int write_entry(struct cache_entry *ce, char *path, const struct checkout size_t wrote, newsize = 0; struct stat st; + if (ce_mode_s_ifmt == S_IFREG) { + struct stream_filter *filter = get_stream_filter(path, ce->sha1); + if (filter && + !streaming_write_entry(ce, path, filter, + state, to_tempfile, + &fstat_done, &st)) + goto finish; + } + switch (ce_mode_s_ifmt) { case S_IFREG: case S_IFLNK: new = read_blob_entry(ce, &size); if (!new) - return error("git checkout-index: unable to read sha1 file of %s (%s)", + return error("unable to read sha1 file of %s (%s)", path, sha1_to_hex(ce->sha1)); if (ce_mode_s_ifmt == S_IFLNK && has_symlinks && !to_tempfile) { ret = symlink(new, path); free(new); if (ret) - return error("git checkout-index: unable to create symlink %s (%s)", + return error("unable to create symlink %s (%s)", path, strerror(errno)); break; } @@ -128,45 +180,32 @@ static int write_entry(struct cache_entry *ce, char *path, const struct checkout size = newsize; } - if (to_tempfile) { - if (ce_mode_s_ifmt == S_IFREG) - strcpy(path, ".merge_file_XXXXXX"); - else - strcpy(path, ".merge_link_XXXXXX"); - fd = mkstemp(path); - } else if (ce_mode_s_ifmt == S_IFREG) { - fd = create_file(path, ce->ce_mode); - } else { - fd = create_file(path, 0666); - } + fd = open_output_fd(path, ce, to_tempfile); if (fd < 0) { free(new); - return error("git checkout-index: unable to create file %s (%s)", + return error("unable to create file %s (%s)", path, strerror(errno)); } wrote = write_in_full(fd, new, size); - /* use fstat() only when path == ce->name */ - if (fstat_is_reliable() && - state->refresh_cache && !to_tempfile && !state->base_dir_len) { - fstat(fd, &st); - fstat_done = 1; - } + if (!to_tempfile) + fstat_done = fstat_output(fd, state, &st); close(fd); free(new); if (wrote != size) - return error("git checkout-index: unable to write file %s", path); + return error("unable to write file %s", path); break; case S_IFGITLINK: if (to_tempfile) - return error("git checkout-index: cannot create temporary subproject %s", path); + return error("cannot create temporary subproject %s", path); if (mkdir(path, 0777) < 0) - return error("git checkout-index: cannot create subproject directory %s", path); + return error("cannot create subproject directory %s", path); break; default: - return error("git checkout-index: unknown file mode for %s", path); + return error("unknown file mode for %s in index", path); } +finish: if (state->refresh_cache) { if (!fstat_done) lstat(ce->name, &st); @@ -179,7 +218,7 @@ static int write_entry(struct cache_entry *ce, char *path, const struct checkout * This is like 'lstat()', except it refuses to follow symlinks * in the path, after skipping "skiplen". */ -int check_path(const char *path, int len, struct stat *st, int skiplen) +static int check_path(const char *path, int len, struct stat *st, int skiplen) { const char *slash = path + len; @@ -206,12 +245,12 @@ int checkout_entry(struct cache_entry *ce, const struct checkout *state, char *t len += ce_namelen(ce); if (!check_path(path, len, &st, state->base_dir_len)) { - unsigned changed = ce_match_stat(ce, &st, CE_MATCH_IGNORE_VALID); + unsigned changed = ce_match_stat(ce, &st, CE_MATCH_IGNORE_VALID|CE_MATCH_IGNORE_SKIP_WORKTREE); if (!changed) return 0; if (!state->force) { if (!state->quiet) - fprintf(stderr, "git-checkout-index: %s already exists\n", path); + fprintf(stderr, "%s already exists, no checkout\n", path); return -1; } |