From c8aa9fdf5dc15e2c508acb22df03d431983569ed Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Wed, 28 Oct 2015 13:17:29 -0700 Subject: strbuf: make strbuf_getline_crlf() global Often we read "text" files that are supplied by the end user (e.g. commit log message that was edited with $GIT_EDITOR upon 'git commit -e'), and in some environments lines in a text file are terminated with CRLF. Existing strbuf_getline() knows to read a single line and then strip the terminating byte from the result, but it is handy to have a version that is more tailored for a "text" input that takes both '\n' and '\r\n' as line terminator (aka in POSIX lingo) and returns the body of the line after stripping . Recently reimplemented "git am" uses such a function implemented privately; move it to strbuf.[ch] and make it available for others. Note that we do not blindly replace calls to strbuf_getline() that uses LF as the line terminator with calls to strbuf_getline_crlf() and this is very much deliberate. Some callers may want to treat an incoming line that ends with CR (and terminated with LF) to have a payload that includes the final CR, and such a blind replacement will result in misconversion when done without code audit. Signed-off-by: Junio C Hamano --- builtin/am.c | 15 --------------- 1 file changed, 15 deletions(-) (limited to 'builtin') diff --git a/builtin/am.c b/builtin/am.c index 9fb42fdd71..d96735c0be 100644 --- a/builtin/am.c +++ b/builtin/am.c @@ -45,21 +45,6 @@ static int is_empty_file(const char *filename) return !st.st_size; } -/** - * Like strbuf_getline(), but treats both '\n' and "\r\n" as line terminators. - */ -static int strbuf_getline_crlf(struct strbuf *sb, FILE *fp) -{ - if (strbuf_getwholeline(sb, fp, '\n')) - return EOF; - if (sb->buf[sb->len - 1] == '\n') { - strbuf_setlen(sb, sb->len - 1); - if (sb->len > 0 && sb->buf[sb->len - 1] == '\r') - strbuf_setlen(sb, sb->len - 1); - } - return 0; -} - /** * Returns the length of the first line of msg. */ -- cgit v1.2.1 From 8f309aeb8225a9c26f20c0dbc031f1ea8df75d49 Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Wed, 13 Jan 2016 15:31:17 -0800 Subject: strbuf: introduce strbuf_getline_{lf,nul}() The strbuf_getline() interface allows a byte other than LF or NUL as the line terminator, but this is only because I wrote these codepaths anticipating that there might be a value other than NUL and LF that could be useful when I introduced line_termination long time ago. No useful caller that uses other value has emerged. By now, it is clear that the interface is overly broad without a good reason. Many codepaths have hardcoded preference to read either LF terminated or NUL terminated records from their input, and then call strbuf_getline() with LF or NUL as the third parameter. This step introduces two thin wrappers around strbuf_getline(), namely, strbuf_getline_lf() and strbuf_getline_nul(), and mechanically rewrites these call sites to call either one of them. The changes contained in this patch are: * introduction of these two functions in strbuf.[ch] * mechanical conversion of all callers to strbuf_getline() with either '\n' or '\0' as the third parameter to instead call the respective thin wrapper. After this step, output from "git grep 'strbuf_getline('" would become a lot smaller. An interim goal of this series is to make this an empty set, so that we can have strbuf_getline_crlf() take over the shorter name strbuf_getline(). Signed-off-by: Junio C Hamano --- builtin/am.c | 14 +++++++------- builtin/cat-file.c | 2 +- builtin/check-mailmap.c | 2 +- builtin/clean.c | 6 +++--- builtin/clone.c | 2 +- builtin/column.c | 2 +- builtin/commit.c | 2 +- builtin/fetch-pack.c | 2 +- builtin/grep.c | 2 +- builtin/hash-object.c | 2 +- builtin/notes.c | 2 +- builtin/pull.c | 2 +- builtin/repack.c | 2 +- builtin/rev-parse.c | 4 ++-- builtin/send-pack.c | 2 +- 15 files changed, 24 insertions(+), 24 deletions(-) (limited to 'builtin') diff --git a/builtin/am.c b/builtin/am.c index d96735c0be..9063a4ac2c 100644 --- a/builtin/am.c +++ b/builtin/am.c @@ -269,7 +269,7 @@ static char *read_shell_var(FILE *fp, const char *key) struct strbuf sb = STRBUF_INIT; const char *str; - if (strbuf_getline(&sb, fp, '\n')) + if (strbuf_getline_lf(&sb, fp)) goto fail; if (!skip_prefix(sb.buf, key, &str)) @@ -558,7 +558,7 @@ static int copy_notes_for_rebase(const struct am_state *state) fp = xfopen(am_path(state, "rewritten"), "r"); - while (!strbuf_getline(&sb, fp, '\n')) { + while (!strbuf_getline_lf(&sb, fp)) { unsigned char from_obj[GIT_SHA1_RAWSZ], to_obj[GIT_SHA1_RAWSZ]; if (sb.len != GIT_SHA1_HEXSZ * 2 + 1) { @@ -802,7 +802,7 @@ static int stgit_patch_to_mail(FILE *out, FILE *in, int keep_cr) struct strbuf sb = STRBUF_INIT; int subject_printed = 0; - while (!strbuf_getline(&sb, in, '\n')) { + while (!strbuf_getline_lf(&sb, in)) { const char *str; if (str_isspace(sb.buf)) @@ -860,7 +860,7 @@ static int split_mail_stgit_series(struct am_state *state, const char **paths, return error(_("could not open '%s' for reading: %s"), *paths, strerror(errno)); - while (!strbuf_getline(&sb, fp, '\n')) { + while (!strbuf_getline_lf(&sb, fp)) { if (*sb.buf == '#') continue; /* skip comment lines */ @@ -885,7 +885,7 @@ static int hg_patch_to_mail(FILE *out, FILE *in, int keep_cr) { struct strbuf sb = STRBUF_INIT; - while (!strbuf_getline(&sb, in, '\n')) { + while (!strbuf_getline_lf(&sb, in)) { const char *str; if (skip_prefix(sb.buf, "# User ", &str)) @@ -1302,7 +1302,7 @@ static int parse_mail(struct am_state *state, const char *mail) /* Extract message and author information */ fp = xfopen(am_path(state, "info"), "r"); - while (!strbuf_getline(&sb, fp, '\n')) { + while (!strbuf_getline_lf(&sb, fp)) { const char *x; if (skip_prefix(sb.buf, "Subject: ", &x)) { @@ -1368,7 +1368,7 @@ static int get_mail_commit_sha1(unsigned char *commit_id, const char *mail) FILE *fp = xfopen(mail, "r"); const char *x; - if (strbuf_getline(&sb, fp, '\n')) + if (strbuf_getline_lf(&sb, fp)) return -1; if (!skip_prefix(sb.buf, "From ", &x)) diff --git a/builtin/cat-file.c b/builtin/cat-file.c index c0fd8dbb1c..d2ebaf1f58 100644 --- a/builtin/cat-file.c +++ b/builtin/cat-file.c @@ -401,7 +401,7 @@ static int batch_objects(struct batch_options *opt) save_warning = warn_on_object_refname_ambiguity; warn_on_object_refname_ambiguity = 0; - while (strbuf_getline(&buf, stdin, '\n') != EOF) { + while (strbuf_getline_lf(&buf, stdin) != EOF) { if (data.split_on_whitespace) { /* * Split at first whitespace, tying off the beginning diff --git a/builtin/check-mailmap.c b/builtin/check-mailmap.c index eaaea546d3..cf0f54f6b9 100644 --- a/builtin/check-mailmap.c +++ b/builtin/check-mailmap.c @@ -54,7 +54,7 @@ int cmd_check_mailmap(int argc, const char **argv, const char *prefix) if (use_stdin) { struct strbuf buf = STRBUF_INIT; - while (strbuf_getline(&buf, stdin, '\n') != EOF) { + while (strbuf_getline_lf(&buf, stdin) != EOF) { check_mailmap(&mailmap, buf.buf); maybe_flush_or_die(stdout, "stdout"); } diff --git a/builtin/clean.c b/builtin/clean.c index d7acb94a95..cc5f9723de 100644 --- a/builtin/clean.c +++ b/builtin/clean.c @@ -594,7 +594,7 @@ static int *list_and_choose(struct menu_opts *opts, struct menu_stuff *stuff) clean_get_color(CLEAN_COLOR_RESET)); } - if (strbuf_getline(&choice, stdin, '\n') != EOF) { + if (strbuf_getline_lf(&choice, stdin) != EOF) { strbuf_trim(&choice); } else { eof = 1; @@ -676,7 +676,7 @@ static int filter_by_patterns_cmd(void) clean_print_color(CLEAN_COLOR_PROMPT); printf(_("Input ignore patterns>> ")); clean_print_color(CLEAN_COLOR_RESET); - if (strbuf_getline(&confirm, stdin, '\n') != EOF) + if (strbuf_getline_lf(&confirm, stdin) != EOF) strbuf_trim(&confirm); else putchar('\n'); @@ -774,7 +774,7 @@ static int ask_each_cmd(void) qname = quote_path_relative(item->string, NULL, &buf); /* TRANSLATORS: Make sure to keep [y/N] as is */ printf(_("Remove %s [y/N]? "), qname); - if (strbuf_getline(&confirm, stdin, '\n') != EOF) { + if (strbuf_getline_lf(&confirm, stdin) != EOF) { strbuf_trim(&confirm); } else { putchar('\n'); diff --git a/builtin/clone.c b/builtin/clone.c index a0b3cd9e56..29741f4446 100644 --- a/builtin/clone.c +++ b/builtin/clone.c @@ -339,7 +339,7 @@ static void copy_alternates(struct strbuf *src, struct strbuf *dst, FILE *in = fopen(src->buf, "r"); struct strbuf line = STRBUF_INIT; - while (strbuf_getline(&line, in, '\n') != EOF) { + while (strbuf_getline_lf(&line, in) != EOF) { char *abs_path; if (!line.len || line.buf[0] == '#') continue; diff --git a/builtin/column.c b/builtin/column.c index 449413c8a8..40eab08594 100644 --- a/builtin/column.c +++ b/builtin/column.c @@ -51,7 +51,7 @@ int cmd_column(int argc, const char **argv, const char *prefix) die(_("--command must be the first argument")); } finalize_colopts(&colopts, -1); - while (!strbuf_getline(&sb, stdin, '\n')) + while (!strbuf_getline_lf(&sb, stdin)) string_list_append(&list, sb.buf); print_columns(&list, colopts, &copts); diff --git a/builtin/commit.c b/builtin/commit.c index d054f84960..d9db59e1d2 100644 --- a/builtin/commit.c +++ b/builtin/commit.c @@ -1690,7 +1690,7 @@ int cmd_commit(int argc, const char **argv, const char *prefix) if (fp == NULL) die_errno(_("could not open '%s' for reading"), git_path_merge_head()); - while (strbuf_getline(&m, fp, '\n') != EOF) { + while (strbuf_getline_lf(&m, fp) != EOF) { struct commit *parent; parent = get_merge_parent(m.buf); diff --git a/builtin/fetch-pack.c b/builtin/fetch-pack.c index cf3019e05b..9b2a514e1d 100644 --- a/builtin/fetch-pack.c +++ b/builtin/fetch-pack.c @@ -158,7 +158,7 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix) else { /* read from stdin one ref per line, until EOF */ struct strbuf line = STRBUF_INIT; - while (strbuf_getline(&line, stdin, '\n') != EOF) + while (strbuf_getline_lf(&line, stdin) != EOF) add_sought_entry(&sought, &nr_sought, &alloc_sought, line.buf); strbuf_release(&line); } diff --git a/builtin/grep.c b/builtin/grep.c index 4229cae390..5a5beb8109 100644 --- a/builtin/grep.c +++ b/builtin/grep.c @@ -562,7 +562,7 @@ static int file_callback(const struct option *opt, const char *arg, int unset) patterns = from_stdin ? stdin : fopen(arg, "r"); if (!patterns) die_errno(_("cannot open '%s'"), arg); - while (strbuf_getline(&sb, patterns, '\n') == 0) { + while (strbuf_getline_lf(&sb, patterns) == 0) { /* ignore empty line like grep does */ if (sb.len == 0) continue; diff --git a/builtin/hash-object.c b/builtin/hash-object.c index 43b098b76c..3bc5ec1d21 100644 --- a/builtin/hash-object.c +++ b/builtin/hash-object.c @@ -60,7 +60,7 @@ static void hash_stdin_paths(const char *type, int no_filters, unsigned flags, { struct strbuf buf = STRBUF_INIT, nbuf = STRBUF_INIT; - while (strbuf_getline(&buf, stdin, '\n') != EOF) { + while (strbuf_getline_lf(&buf, stdin) != EOF) { if (buf.buf[0] == '"') { strbuf_reset(&nbuf); if (unquote_c_style(&nbuf, buf.buf, NULL)) diff --git a/builtin/notes.c b/builtin/notes.c index 52aa9af74b..3775e38963 100644 --- a/builtin/notes.c +++ b/builtin/notes.c @@ -290,7 +290,7 @@ static int notes_copy_from_stdin(int force, const char *rewrite_cmd) t = &default_notes_tree; } - while (strbuf_getline(&buf, stdin, '\n') != EOF) { + while (strbuf_getline_lf(&buf, stdin) != EOF) { unsigned char from_obj[20], to_obj[20]; struct strbuf **split; int err; diff --git a/builtin/pull.c b/builtin/pull.c index 5145fc60a0..52606a84ce 100644 --- a/builtin/pull.c +++ b/builtin/pull.c @@ -378,7 +378,7 @@ static void get_merge_heads(struct sha1_array *merge_heads) if (!(fp = fopen(filename, "r"))) die_errno(_("could not open '%s' for reading"), filename); - while (strbuf_getline(&sb, fp, '\n') != EOF) { + while (strbuf_getline_lf(&sb, fp) != EOF) { if (get_sha1_hex(sb.buf, sha1)) continue; /* invalid line: does not start with SHA1 */ if (starts_with(sb.buf + GIT_SHA1_HEXSZ, "\tnot-for-merge\t")) diff --git a/builtin/repack.c b/builtin/repack.c index 945611006a..858db38f52 100644 --- a/builtin/repack.c +++ b/builtin/repack.c @@ -266,7 +266,7 @@ int cmd_repack(int argc, const char **argv, const char *prefix) return ret; out = xfdopen(cmd.out, "r"); - while (strbuf_getline(&line, out, '\n') != EOF) { + while (strbuf_getline_lf(&line, out) != EOF) { if (line.len != 40) die("repack: Expecting 40 character sha1 lines only from pack-objects."); string_list_append(&names, line.buf); diff --git a/builtin/rev-parse.c b/builtin/rev-parse.c index 7e074aad40..0324abb749 100644 --- a/builtin/rev-parse.c +++ b/builtin/rev-parse.c @@ -383,7 +383,7 @@ static int cmd_parseopt(int argc, const char **argv, const char *prefix) /* get the usage up to the first line with a -- on it */ for (;;) { - if (strbuf_getline(&sb, stdin, '\n') == EOF) + if (strbuf_getline_lf(&sb, stdin) == EOF) die("premature end of input"); ALLOC_GROW(usage, unb + 1, usz); if (!strcmp("--", sb.buf)) { @@ -396,7 +396,7 @@ static int cmd_parseopt(int argc, const char **argv, const char *prefix) } /* parse: (|,|)[*=?!]*? SP+ */ - while (strbuf_getline(&sb, stdin, '\n') != EOF) { + while (strbuf_getline_lf(&sb, stdin) != EOF) { const char *s; const char *help; struct option *o; diff --git a/builtin/send-pack.c b/builtin/send-pack.c index f6e5d643c1..8f9f4f148d 100644 --- a/builtin/send-pack.c +++ b/builtin/send-pack.c @@ -212,7 +212,7 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix) argv_array_push(&all_refspecs, buf); } else { struct strbuf line = STRBUF_INIT; - while (strbuf_getline(&line, stdin, '\n') != EOF) + while (strbuf_getline_lf(&line, stdin) != EOF) argv_array_push(&all_refspecs, line.buf); strbuf_release(&line); } -- cgit v1.2.1 From b4df87b8ca3b9cf8e648058af4870cfc7305b082 Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Wed, 13 Jan 2016 15:55:12 -0800 Subject: mktree: there are only two possible line terminations The program by default reads LF terminated lines, with an option to use NUL terminated records. Instead of pretending that there can be other useful values for line_termination, use a boolean variable, nul_term_line, to tell if NUL terminated records are used, and switch between strbuf_getline_{lf,nul} based on it. Signed-off-by: Junio C Hamano --- builtin/mktree.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) (limited to 'builtin') diff --git a/builtin/mktree.c b/builtin/mktree.c index a964d6be52..a237caacfd 100644 --- a/builtin/mktree.c +++ b/builtin/mktree.c @@ -65,7 +65,7 @@ static const char *mktree_usage[] = { NULL }; -static void mktree_line(char *buf, size_t len, int line_termination, int allow_missing) +static void mktree_line(char *buf, size_t len, int nul_term_line, int allow_missing) { char *ptr, *ntr; unsigned mode; @@ -97,7 +97,7 @@ static void mktree_line(char *buf, size_t len, int line_termination, int allow_m *ntr++ = 0; /* now at the beginning of SHA1 */ path = ntr + 41; /* at the beginning of name */ - if (line_termination && path[0] == '"') { + if (!nul_term_line && path[0] == '"') { struct strbuf p_uq = STRBUF_INIT; if (unquote_c_style(&p_uq, path, NULL)) die("invalid quoting"); @@ -141,23 +141,25 @@ int cmd_mktree(int ac, const char **av, const char *prefix) { struct strbuf sb = STRBUF_INIT; unsigned char sha1[20]; - int line_termination = '\n'; + int nul_term_line = 0; int allow_missing = 0; int is_batch_mode = 0; int got_eof = 0; + strbuf_getline_fn getline_fn; const struct option option[] = { - OPT_SET_INT('z', NULL, &line_termination, N_("input is NUL terminated"), '\0'), + OPT_BOOL('z', NULL, &nul_term_line, N_("input is NUL terminated")), OPT_SET_INT( 0 , "missing", &allow_missing, N_("allow missing objects"), 1), OPT_SET_INT( 0 , "batch", &is_batch_mode, N_("allow creation of more than one tree"), 1), OPT_END() }; ac = parse_options(ac, av, prefix, option, mktree_usage, 0); + getline_fn = nul_term_line ? strbuf_getline_nul : strbuf_getline_lf; while (!got_eof) { while (1) { - if (strbuf_getline(&sb, stdin, line_termination) == EOF) { + if (getline_fn(&sb, stdin) == EOF) { got_eof = 1; break; } @@ -167,7 +169,7 @@ int cmd_mktree(int ac, const char **av, const char *prefix) break; die("input format error: (blank line only valid in batch mode)"); } - mktree_line(sb.buf, sb.len, line_termination, allow_missing); + mktree_line(sb.buf, sb.len, nul_term_line, allow_missing); } if (is_batch_mode && got_eof && used < 1) { /* -- cgit v1.2.1 From f418afa98afb15afb8f93fe1ab11d5b83266d17d Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Thu, 14 Jan 2016 13:26:20 -0800 Subject: check-attr: there are only two possible line terminations The program by default reads LF terminated lines, with an option to use NUL terminated records. Instead of pretending that there can be other useful values for line_termination, use a boolean variable, nul_term_line, to tell if NUL terminated records are used, and switch between strbuf_getline_{lf,nul} based on it. Signed-off-by: Junio C Hamano --- builtin/check-attr.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'builtin') diff --git a/builtin/check-attr.c b/builtin/check-attr.c index 265c9ba022..087325ef69 100644 --- a/builtin/check-attr.c +++ b/builtin/check-attr.c @@ -73,12 +73,13 @@ static void check_attr_stdin_paths(const char *prefix, int cnt, struct git_attr_check *check) { struct strbuf buf, nbuf; - int line_termination = nul_term_line ? 0 : '\n'; + strbuf_getline_fn getline_fn; + getline_fn = nul_term_line ? strbuf_getline_nul : strbuf_getline_lf; strbuf_init(&buf, 0); strbuf_init(&nbuf, 0); - while (strbuf_getline(&buf, stdin, line_termination) != EOF) { - if (line_termination && buf.buf[0] == '"') { + while (getline_fn(&buf, stdin) != EOF) { + if (!nul_term_line && buf.buf[0] == '"') { strbuf_reset(&nbuf); if (unquote_c_style(&nbuf, buf.buf, NULL)) die("line is badly quoted"); -- cgit v1.2.1 From dca90031fb777b80fab5084d48cba2e163e2596d Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Thu, 14 Jan 2016 13:31:17 -0800 Subject: check-ignore: there are only two possible line terminations The program by default reads LF terminated lines, with an option to use NUL terminated records. Instead of pretending that there can be other useful values for line_termination, use a boolean variable, nul_term_line, to tell if NUL terminated records are used, and switch between strbuf_getline_{lf,nul} based on it. Signed-off-by: Junio C Hamano --- builtin/check-ignore.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'builtin') diff --git a/builtin/check-ignore.c b/builtin/check-ignore.c index 43f361797a..4f0b09e2db 100644 --- a/builtin/check-ignore.c +++ b/builtin/check-ignore.c @@ -117,13 +117,14 @@ static int check_ignore_stdin_paths(struct dir_struct *dir, const char *prefix) { struct strbuf buf, nbuf; char *pathspec[2] = { NULL, NULL }; - int line_termination = nul_term_line ? 0 : '\n'; + strbuf_getline_fn getline_fn; int num_ignored = 0; + getline_fn = nul_term_line ? strbuf_getline_nul : strbuf_getline_lf; strbuf_init(&buf, 0); strbuf_init(&nbuf, 0); - while (strbuf_getline(&buf, stdin, line_termination) != EOF) { - if (line_termination && buf.buf[0] == '"') { + while (getline_fn(&buf, stdin) != EOF) { + if (!nul_term_line && buf.buf[0] == '"') { strbuf_reset(&nbuf); if (unquote_c_style(&nbuf, buf.buf, NULL)) die("line is badly quoted"); -- cgit v1.2.1 From 7e07ed84186d4047b39a4e9047d41df0322c7338 Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Thu, 14 Jan 2016 13:34:29 -0800 Subject: update-index: there are only two possible line terminations The program by default reads LF terminated lines, with an option to use NUL terminated records. Instead of pretending that there can be other useful values for line_termination, use a boolean variable, nul_term_line, to tell if NUL terminated records are used, and switch between strbuf_getline_{lf,nul} based on it. Signed-off-by: Junio C Hamano --- builtin/update-index.c | 27 ++++++++++++++++----------- 1 file changed, 16 insertions(+), 11 deletions(-) (limited to 'builtin') diff --git a/builtin/update-index.c b/builtin/update-index.c index 7431938fa6..7c5c143de5 100644 --- a/builtin/update-index.c +++ b/builtin/update-index.c @@ -468,12 +468,14 @@ static void update_one(const char *path) report("add '%s'", path); } -static void read_index_info(int line_termination) +static void read_index_info(int nul_term_line) { struct strbuf buf = STRBUF_INIT; struct strbuf uq = STRBUF_INIT; + strbuf_getline_fn getline_fn; - while (strbuf_getline(&buf, stdin, line_termination) != EOF) { + getline_fn = nul_term_line ? strbuf_getline_nul : strbuf_getline_lf; + while (getline_fn(&buf, stdin) != EOF) { char *ptr, *tab; char *path_name; unsigned char sha1[20]; @@ -522,7 +524,7 @@ static void read_index_info(int line_termination) goto bad_line; path_name = ptr; - if (line_termination && path_name[0] == '"') { + if (!nul_term_line && path_name[0] == '"') { strbuf_reset(&uq); if (unquote_c_style(&uq, path_name, NULL)) { die("git update-index: bad quoting of path name"); @@ -844,12 +846,12 @@ static int cacheinfo_callback(struct parse_opt_ctx_t *ctx, static int stdin_cacheinfo_callback(struct parse_opt_ctx_t *ctx, const struct option *opt, int unset) { - int *line_termination = opt->value; + int *nul_term_line = opt->value; if (ctx->argc != 1) return error("option '%s' must be the last argument", opt->long_name); allow_add = allow_replace = allow_remove = 1; - read_index_info(*line_termination); + read_index_info(*nul_term_line); return 0; } @@ -901,7 +903,7 @@ static int reupdate_callback(struct parse_opt_ctx_t *ctx, int cmd_update_index(int argc, const char **argv, const char *prefix) { - int newfd, entries, has_errors = 0, line_termination = '\n'; + int newfd, entries, has_errors = 0, nul_term_line = 0; int untracked_cache = -1; int read_from_stdin = 0; int prefix_length = prefix ? strlen(prefix) : 0; @@ -912,6 +914,7 @@ int cmd_update_index(int argc, const char **argv, const char *prefix) int split_index = -1; struct lock_file *lock_file; struct parse_opt_ctx_t ctx; + strbuf_getline_fn getline_fn; int parseopt_state = PARSE_OPT_UNKNOWN; struct option options[] = { OPT_BIT('q', NULL, &refresh_args.flags, @@ -963,13 +966,13 @@ int cmd_update_index(int argc, const char **argv, const char *prefix) N_("add to index only; do not add content to object database"), 1), OPT_SET_INT(0, "force-remove", &force_remove, N_("remove named paths even if present in worktree"), 1), - OPT_SET_INT('z', NULL, &line_termination, - N_("with --stdin: input lines are terminated by null bytes"), '\0'), + OPT_BOOL('z', NULL, &nul_term_line, + N_("with --stdin: input lines are terminated by null bytes")), {OPTION_LOWLEVEL_CALLBACK, 0, "stdin", &read_from_stdin, NULL, N_("read list of paths to be updated from standard input"), PARSE_OPT_NONEG | PARSE_OPT_NOARG, (parse_opt_cb *) stdin_callback}, - {OPTION_LOWLEVEL_CALLBACK, 0, "index-info", &line_termination, NULL, + {OPTION_LOWLEVEL_CALLBACK, 0, "index-info", &nul_term_line, NULL, N_("add entries from standard input to the index"), PARSE_OPT_NONEG | PARSE_OPT_NOARG, (parse_opt_cb *) stdin_cacheinfo_callback}, @@ -1057,6 +1060,8 @@ int cmd_update_index(int argc, const char **argv, const char *prefix) } } argc = parse_options_end(&ctx); + + getline_fn = nul_term_line ? strbuf_getline_nul : strbuf_getline_lf; if (preferred_index_format) { if (preferred_index_format < INDEX_FORMAT_LB || INDEX_FORMAT_UB < preferred_index_format) @@ -1073,9 +1078,9 @@ int cmd_update_index(int argc, const char **argv, const char *prefix) struct strbuf buf = STRBUF_INIT, nbuf = STRBUF_INIT; setup_work_tree(); - while (strbuf_getline(&buf, stdin, line_termination) != EOF) { + while (getline_fn(&buf, stdin) != EOF) { char *p; - if (line_termination && buf.buf[0] == '"') { + if (!nul_term_line && buf.buf[0] == '"') { strbuf_reset(&nbuf); if (unquote_c_style(&nbuf, buf.buf, NULL)) die("line is badly quoted"); -- cgit v1.2.1 From a392f57daf7dc5e72ab3ada7802eddc000fa3081 Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Wed, 13 Jan 2016 16:14:48 -0800 Subject: checkout-index: there are only two possible line terminations The program by default reads LF terminated lines, with an option to use NUL terminated records. Instead of pretending that there can be other useful values for line_termination, use a boolean variable, nul_term_line, to tell if NUL terminated records are used, and switch between strbuf_getline_{lf,nul} based on it. Signed-off-by: Junio C Hamano --- builtin/checkout-index.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'builtin') diff --git a/builtin/checkout-index.c b/builtin/checkout-index.c index 8028c3768f..ed888a5b9e 100644 --- a/builtin/checkout-index.c +++ b/builtin/checkout-index.c @@ -11,7 +11,7 @@ #include "parse-options.h" #define CHECKOUT_ALL 4 -static int line_termination = '\n'; +static int nul_term_line; static int checkout_stage; /* default to checkout stage0 */ static int to_tempfile; static char topath[4][TEMPORARY_FILENAME_LENGTH + 1]; @@ -35,7 +35,8 @@ static void write_tempfile_record(const char *name, const char *prefix) fputs(topath[checkout_stage], stdout); putchar('\t'); - write_name_quoted_relative(name, prefix, stdout, line_termination); + write_name_quoted_relative(name, prefix, stdout, + nul_term_line ? '\0' : '\n'); for (i = 0; i < 4; i++) { topath[i][0] = 0; @@ -144,10 +145,7 @@ static int option_parse_u(const struct option *opt, static int option_parse_z(const struct option *opt, const char *arg, int unset) { - if (unset) - line_termination = '\n'; - else - line_termination = 0; + nul_term_line = !unset; return 0; } @@ -254,13 +252,15 @@ int cmd_checkout_index(int argc, const char **argv, const char *prefix) if (read_from_stdin) { struct strbuf buf = STRBUF_INIT, nbuf = STRBUF_INIT; + strbuf_getline_fn getline_fn; if (all) die("git checkout-index: don't mix '--all' and '--stdin'"); - while (strbuf_getline(&buf, stdin, line_termination) != EOF) { + getline_fn = nul_term_line ? strbuf_getline_nul : strbuf_getline_lf; + while (getline_fn(&buf, stdin) != EOF) { char *p; - if (line_termination && buf.buf[0] == '"') { + if (!nul_term_line && buf.buf[0] == '"') { strbuf_reset(&nbuf); if (unquote_c_style(&nbuf, buf.buf, NULL)) die("line is badly quoted"); -- cgit v1.2.1 From 1a0c8dfd89475d6bb09ddee8c019cf0ae5b3bdc2 Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Wed, 13 Jan 2016 18:32:23 -0800 Subject: strbuf: give strbuf_getline() to the "most text friendly" variant Now there is no direct caller to strbuf_getline(), we can demote it to file-scope static that is private to strbuf.c and rename it to strbuf_getdelim(). Rename strbuf_getline_crlf(), which is designed to be the most "text friendly" variant, and allow it to take over this simplest name, strbuf_getline(), so we can add more uses of it without having to type _crlf over and over again in the coming steps. Signed-off-by: Junio C Hamano --- builtin/am.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'builtin') diff --git a/builtin/am.c b/builtin/am.c index 9063a4ac2c..7b8351dede 100644 --- a/builtin/am.c +++ b/builtin/am.c @@ -613,7 +613,7 @@ static int is_mail(FILE *fp) if (regcomp(®ex, header_regex, REG_NOSUB | REG_EXTENDED)) die("invalid pattern: %s", header_regex); - while (!strbuf_getline_crlf(&sb, fp)) { + while (!strbuf_getline(&sb, fp)) { if (!sb.len) break; /* End of header */ @@ -660,7 +660,7 @@ static int detect_patch_format(const char **paths) fp = xfopen(*paths, "r"); - while (!strbuf_getline_crlf(&l1, fp)) { + while (!strbuf_getline(&l1, fp)) { if (l1.len) break; } @@ -681,9 +681,9 @@ static int detect_patch_format(const char **paths) } strbuf_reset(&l2); - strbuf_getline_crlf(&l2, fp); + strbuf_getline(&l2, fp); strbuf_reset(&l3); - strbuf_getline_crlf(&l3, fp); + strbuf_getline(&l3, fp); /* * If the second line is empty and the third is a From, Author or Date -- cgit v1.2.1