diff options
Diffstat (limited to 'convert.c')
| -rw-r--r-- | convert.c | 103 |
1 files changed, 61 insertions, 42 deletions
@@ -2,6 +2,7 @@ #include "attr.h" #include "run-command.h" #include "quote.h" +#include "sigchain.h" /* * convert.c - convert a file when checking it out and checking it in. @@ -152,36 +153,13 @@ static void check_safe_crlf(const char *path, enum crlf_action crlf_action, static int has_cr_in_index(const char *path) { - int pos, len; unsigned long sz; - enum object_type type; void *data; int has_cr; - struct index_state *istate = &the_index; - len = strlen(path); - pos = index_name_pos(istate, path, len); - if (pos < 0) { - /* - * We might be in the middle of a merge, in which - * case we would read stage #2 (ours). - */ - int i; - for (i = -pos - 1; - (pos < 0 && i < istate->cache_nr && - !strcmp(istate->cache[i]->name, path)); - i++) - if (ce_stage(istate->cache[i]) == 2) - pos = i; - } - if (pos < 0) - return 0; - data = read_sha1_file(istate->cache[pos]->sha1, &type, &sz); - if (!data || type != OBJ_BLOB) { - free(data); + data = read_blob_data_from_cache(path, &sz); + if (!data) return 0; - } - has_cr = memchr(data, '\r', sz) != NULL; free(data); return has_cr; @@ -195,9 +173,17 @@ static int crlf_to_git(const char *path, const char *src, size_t len, char *dst; if (crlf_action == CRLF_BINARY || - (crlf_action == CRLF_GUESS && auto_crlf == AUTO_CRLF_FALSE) || !len) + (crlf_action == CRLF_GUESS && auto_crlf == AUTO_CRLF_FALSE) || + (src && !len)) return 0; + /* + * If we are doing a dry-run and have no source buffer, there is + * nothing to analyze; we must assume we would convert. + */ + if (!buf && !src) + return 1; + gather_stats(src, len, &stats); if (crlf_action == CRLF_AUTO || crlf_action == CRLF_GUESS) { @@ -231,6 +217,13 @@ static int crlf_to_git(const char *path, const char *src, size_t len, if (!stats.cr) return 0; + /* + * At this point all of our source analysis is done, and we are sure we + * would convert. If we are in dry-run mode, we can give an answer. + */ + if (!buf) + return 1; + /* only grow if not in place */ if (strbuf_avail(buf) + buf->len < len) strbuf_grow(buf, len - buf->len); @@ -360,12 +353,16 @@ static int filter_buffer(int in, int out, void *data) if (start_command(&child_process)) return error("cannot fork to run external filter %s", params->cmd); + sigchain_push(SIGPIPE, SIG_IGN); + write_err = (write_in_full(child_process.in, params->src, params->size) < 0); if (close(child_process.in)) write_err = 1; if (write_err) error("cannot feed the input to external filter %s", params->cmd); + sigchain_pop(SIGPIPE); + status = finish_command(&child_process); if (status) error("external filter %s failed %d", params->cmd, status); @@ -391,6 +388,9 @@ static int apply_filter(const char *path, const char *src, size_t len, if (!cmd) return 0; + if (!dst) + return 1; + memset(&async, 0, sizeof(async)); async.proc = filter_buffer; async.data = ¶ms; @@ -429,11 +429,12 @@ static struct convert_driver { struct convert_driver *next; const char *smudge; const char *clean; + int required; } *user_convert, **user_convert_tail; static int read_convert_config(const char *var, const char *value, void *cb) { - const char *ep, *name; + const char *key, *name; int namelen; struct convert_driver *drv; @@ -441,10 +442,8 @@ static int read_convert_config(const char *var, const char *value, void *cb) * External conversion drivers are configured using * "filter.<name>.variable". */ - if (prefixcmp(var, "filter.") || (ep = strrchr(var, '.')) == var + 6) + if (parse_config_key(var, "filter", &name, &namelen, &key) < 0 || !name) return 0; - name = var + 7; - namelen = ep - name; for (drv = user_convert; drv; drv = drv->next) if (!strncmp(drv->name, name, namelen) && !drv->name[namelen]) break; @@ -455,8 +454,6 @@ static int read_convert_config(const char *var, const char *value, void *cb) user_convert_tail = &(drv->next); } - ep++; - /* * filter.<name>.smudge and filter.<name>.clean specifies * the command line: @@ -466,12 +463,17 @@ static int read_convert_config(const char *var, const char *value, void *cb) * The command-line will not be interpolated in any way. */ - if (!strcmp("smudge", ep)) + if (!strcmp("smudge", key)) return git_config_string(&drv->smudge, var, value); - if (!strcmp("clean", ep)) + if (!strcmp("clean", key)) return git_config_string(&drv->clean, var, value); + if (!strcmp("required", key)) { + drv->required = git_config_bool(var, value); + return 0; + } + return 0; } @@ -522,9 +524,12 @@ static int ident_to_git(const char *path, const char *src, size_t len, { char *dst, *dollar; - if (!ident || !count_ident(src, len)) + if (!ident || (src && !count_ident(src, len))) return 0; + if (!buf) + return 1; + /* only grow if not in place */ if (strbuf_avail(buf) + buf->len < len) strbuf_grow(buf, len - buf->len); @@ -747,20 +752,26 @@ int convert_to_git(const char *path, const char *src, size_t len, { int ret = 0; const char *filter = NULL; + int required = 0; struct conv_attrs ca; convert_attrs(&ca, path); - if (ca.drv) + if (ca.drv) { filter = ca.drv->clean; + required = ca.drv->required; + } ret |= apply_filter(path, src, len, dst, filter); - if (ret) { + if (!ret && required) + die("%s: clean filter '%s' failed", path, ca.drv->name); + + if (ret && dst) { src = dst->buf; len = dst->len; } ca.crlf_action = input_crlf_action(ca.crlf_action, ca.eol_attr); ret |= crlf_to_git(path, src, len, dst, ca.crlf_action, checksafe); - if (ret) { + if (ret && dst) { src = dst->buf; len = dst->len; } @@ -771,13 +782,16 @@ static int convert_to_working_tree_internal(const char *path, const char *src, size_t len, struct strbuf *dst, int normalizing) { - int ret = 0; + int ret = 0, ret_filter = 0; const char *filter = NULL; + int required = 0; struct conv_attrs ca; convert_attrs(&ca, path); - if (ca.drv) + if (ca.drv) { filter = ca.drv->smudge; + required = ca.drv->required; + } ret |= ident_to_worktree(path, src, len, dst, ca.ident); if (ret) { @@ -796,7 +810,12 @@ static int convert_to_working_tree_internal(const char *path, const char *src, len = dst->len; } } - return ret | apply_filter(path, src, len, dst, filter); + + ret_filter = apply_filter(path, src, len, dst, filter); + if (!ret_filter && required) + die("%s: smudge filter %s failed", path, ca.drv->name); + + return ret | ret_filter; } int convert_to_working_tree(const char *path, const char *src, size_t len, struct strbuf *dst) @@ -816,7 +835,7 @@ int renormalize_buffer(const char *path, const char *src, size_t len, struct str /***************************************************************** * - * Streaming converison support + * Streaming conversion support * *****************************************************************/ |