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authorZheNing Hu <adlternative@gmail.com>2022-07-23 06:44:45 (GMT)
committerJunio C Hamano <gitster@pobox.com>2022-07-23 17:53:55 (GMT)
commitce74de931d7aea9746e37632534eacc63b0c1a90 (patch)
tree055af157523150f26dd169a7ccedae71f9aa876a
parent8168d5e9c23ed44ae3d604f392320d66556453c9 (diff)
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ls-files: introduce "--format" option
Add a new option "--format" that outputs index entries informations in a custom format, taking inspiration from the option with the same name in the `git ls-tree` command. "--format" cannot used with "-s", "-o", "-k", "-t", " --resolve-undo","--deduplicate" and "--eol". Signed-off-by: ZheNing Hu <adlternative@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--Documentation/git-ls-files.txt39
-rw-r--r--builtin/ls-files.c95
-rwxr-xr-xt/t3013-ls-files-format.sh95
3 files changed, 228 insertions, 1 deletions
diff --git a/Documentation/git-ls-files.txt b/Documentation/git-ls-files.txt
index 0dabf3f..d798641 100644
--- a/Documentation/git-ls-files.txt
+++ b/Documentation/git-ls-files.txt
@@ -20,7 +20,7 @@ SYNOPSIS
[--exclude-standard]
[--error-unmatch] [--with-tree=<tree-ish>]
[--full-name] [--recurse-submodules]
- [--abbrev[=<n>]] [--] [<file>...]
+ [--abbrev[=<n>]] [--format=<format>] [--] [<file>...]
DESCRIPTION
-----------
@@ -192,6 +192,13 @@ followed by the ("attr/<eolattr>").
to the contained files. Sparse directories will be shown with a
trailing slash, such as "x/" for a sparse directory "x".
+--format=<format>::
+ A string that interpolates `%(fieldname)` from the result being shown.
+ It also interpolates `%%` to `%`, and `%xx` where `xx` are hex digits
+ interpolates to character with hex code `xx`; for example `%00`
+ interpolates to `\0` (NUL), `%09` to `\t` (TAB) and %0a to `\n` (LF).
+ --format cannot be combined with `-s`, `-o`, `-k`, `-t`, `--resolve-undo`
+ and `--eol`.
\--::
Do not interpret any more arguments as options.
@@ -223,6 +230,36 @@ quoted as explained for the configuration variable `core.quotePath`
(see linkgit:git-config[1]). Using `-z` the filename is output
verbatim and the line is terminated by a NUL byte.
+It is possible to print in a custom format by using the `--format`
+option, which is able to interpolate different fields using
+a `%(fieldname)` notation. For example, if you only care about the
+"objectname" and "path" fields, you can execute with a specific
+"--format" like
+
+ git ls-files --format='%(objectname) %(path)'
+
+FIELD NAMES
+-----------
+The way each path is shown can be customized by using the
+`--format=<format>` option, where the %(fieldname) in the
+<format> string for various aspects of the index entry are
+interpolated. The following "fieldname" are understood:
+
+objectmode::
+ The mode of the file which is recorded in the index.
+objectname::
+ The name of the file which is recorded in the index.
+stage::
+ The stage of the file which is recorded in the index.
+eolinfo:index::
+eolinfo:worktree::
+ The <eolinfo> (see the description of the `--eol` option) of
+ the contents in the index or in the worktree for the path.
+eolattr::
+ The <eolattr> (see the description of the `--eol` option)
+ that applies to the path.
+path::
+ The pathname of the file which is recorded in the index.
EXCLUDE PATTERNS
----------------
diff --git a/builtin/ls-files.c b/builtin/ls-files.c
index e791b65..779dc18 100644
--- a/builtin/ls-files.c
+++ b/builtin/ls-files.c
@@ -11,6 +11,7 @@
#include "quote.h"
#include "dir.h"
#include "builtin.h"
+#include "strbuf.h"
#include "tree.h"
#include "cache-tree.h"
#include "parse-options.h"
@@ -48,6 +49,7 @@ static char *ps_matched;
static const char *with_tree;
static int exc_given;
static int exclude_args;
+static const char *format;
static const char *tag_cached = "";
static const char *tag_unmerged = "";
@@ -85,6 +87,16 @@ static void write_name(const char *name)
stdout, line_terminator);
}
+static void write_name_to_buf(struct strbuf *sb, const char *name)
+{
+ const char *rel = relative_path(name, prefix_len ? prefix : NULL, sb);
+
+ if (line_terminator)
+ quote_c_style(rel, sb, NULL, 0);
+ else
+ strbuf_addstr(sb, rel);
+}
+
static const char *get_tag(const struct cache_entry *ce, const char *tag)
{
static char alttag[4];
@@ -222,6 +234,73 @@ static void show_submodule(struct repository *superproject,
repo_clear(&subrepo);
}
+struct show_index_data {
+ const char *pathname;
+ struct index_state *istate;
+ const struct cache_entry *ce;
+};
+
+static size_t expand_show_index(struct strbuf *sb, const char *start,
+ void *context)
+{
+ struct show_index_data *data = context;
+ const char *end;
+ const char *p;
+ size_t len = strbuf_expand_literal_cb(sb, start, NULL);
+ struct stat st;
+
+ if (len)
+ return len;
+ if (*start != '(')
+ die(_("bad ls-files format: element '%s' "
+ "does not start with '('"), start);
+
+ end = strchr(start + 1, ')');
+ if (!end)
+ die(_("bad ls-files format: element '%s'"
+ "does not end in ')'"), start);
+
+ len = end - start + 1;
+ if (skip_prefix(start, "(objectmode)", &p))
+ strbuf_addf(sb, "%06o", data->ce->ce_mode);
+ else if (skip_prefix(start, "(objectname)", &p))
+ strbuf_add_unique_abbrev(sb, &data->ce->oid, abbrev);
+ else if (skip_prefix(start, "(stage)", &p))
+ strbuf_addf(sb, "%d", ce_stage(data->ce));
+ else if (skip_prefix(start, "(eolinfo:index)", &p))
+ strbuf_addstr(sb, S_ISREG(data->ce->ce_mode) ?
+ get_cached_convert_stats_ascii(data->istate,
+ data->ce->name) : "");
+ else if (skip_prefix(start, "(eolinfo:worktree)", &p))
+ strbuf_addstr(sb, !lstat(data->pathname, &st) &&
+ S_ISREG(st.st_mode) ?
+ get_wt_convert_stats_ascii(data->pathname) : "");
+ else if (skip_prefix(start, "(eolattr)", &p))
+ strbuf_addstr(sb, get_convert_attr_ascii(data->istate,
+ data->pathname));
+ else if (skip_prefix(start, "(path)", &p))
+ write_name_to_buf(sb, data->pathname);
+ else
+ die(_("bad ls-files format: %%%.*s"), (int)len, start);
+
+ return len;
+}
+
+static void show_ce_fmt(struct repository *repo, const struct cache_entry *ce,
+ const char *format, const char *fullname) {
+ struct show_index_data data = {
+ .pathname = fullname,
+ .istate = repo->index,
+ .ce = ce,
+ };
+ struct strbuf sb = STRBUF_INIT;
+
+ strbuf_expand(&sb, format, expand_show_index, &data);
+ strbuf_addch(&sb, line_terminator);
+ fwrite(sb.buf, sb.len, 1, stdout);
+ strbuf_release(&sb);
+}
+
static void show_ce(struct repository *repo, struct dir_struct *dir,
const struct cache_entry *ce, const char *fullname,
const char *tag)
@@ -236,6 +315,12 @@ static void show_ce(struct repository *repo, struct dir_struct *dir,
max_prefix_len, ps_matched,
S_ISDIR(ce->ce_mode) ||
S_ISGITLINK(ce->ce_mode))) {
+ if (format) {
+ show_ce_fmt(repo, ce, format, fullname);
+ print_debug(ce);
+ return;
+ }
+
tag = get_tag(ce, tag);
if (!show_stage) {
@@ -675,6 +760,9 @@ int cmd_ls_files(int argc, const char **argv, const char *cmd_prefix)
N_("suppress duplicate entries")),
OPT_BOOL(0, "sparse", &show_sparse_dirs,
N_("show sparse directories in the presence of a sparse index")),
+ OPT_STRING_F(0, "format", &format, N_("format"),
+ N_("format to use for the output"),
+ PARSE_OPT_NONEG),
OPT_END()
};
int ret = 0;
@@ -699,6 +787,13 @@ int cmd_ls_files(int argc, const char **argv, const char *cmd_prefix)
for (i = 0; i < exclude_list.nr; i++) {
add_pattern(exclude_list.items[i].string, "", 0, pl, --exclude_args);
}
+
+ if (format && (show_stage || show_others || show_killed ||
+ show_resolve_undo || skipping_duplicates || show_eol || show_tag))
+ usage_msg_opt(_("--format cannot be used with -s, -o, -k, -t, "
+ "--resolve-undo, --deduplicate, --eol"),
+ ls_files_usage, builtin_ls_files_options);
+
if (show_tag || show_valid_bit || show_fsmonitor_bit) {
tag_cached = "H ";
tag_unmerged = "M ";
diff --git a/t/t3013-ls-files-format.sh b/t/t3013-ls-files-format.sh
new file mode 100755
index 0000000..efb7450
--- /dev/null
+++ b/t/t3013-ls-files-format.sh
@@ -0,0 +1,95 @@
+#!/bin/sh
+
+test_description='git ls-files --format test'
+
+TEST_PASSES_SANITIZE_LEAK=true
+. ./test-lib.sh
+
+for flag in -s -o -k -t --resolve-undo --deduplicate --eol
+do
+ test_expect_success "usage: --format is incompatible with $flag" '
+ test_expect_code 129 git ls-files --format="%(objectname)" $flag
+ '
+done
+
+test_expect_success 'setup' '
+ printf "LINEONE\nLINETWO\nLINETHREE\n" >o1.txt &&
+ printf "LINEONE\r\nLINETWO\r\nLINETHREE\r\n" >o2.txt &&
+ printf "LINEONE\r\nLINETWO\nLINETHREE\n" >o3.txt &&
+ git add o?.txt &&
+ oid=$(git hash-object o1.txt) &&
+ git update-index --add --cacheinfo 120000 $oid o4.txt &&
+ git update-index --add --cacheinfo 160000 $oid o5.txt &&
+ git update-index --add --cacheinfo 100755 $oid o6.txt &&
+ git commit -m base
+'
+
+test_expect_success 'git ls-files --format objectmode v.s. -s' '
+ git ls-files -s >files &&
+ cut -d" " -f1 files >expect &&
+ git ls-files --format="%(objectmode)" >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'git ls-files --format objectname v.s. -s' '
+ git ls-files -s >files &&
+ cut -d" " -f2 files >expect &&
+ git ls-files --format="%(objectname)" >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'git ls-files --format v.s. --eol' '
+ git ls-files --eol >tmp &&
+ sed -e "s/ / /g" -e "s/ */ /g" tmp >expect 2>err &&
+ test_must_be_empty err &&
+ git ls-files --format="i/%(eolinfo:index) w/%(eolinfo:worktree) attr/%(eolattr) %(path)" >actual 2>err &&
+ test_must_be_empty err &&
+ test_cmp expect actual
+'
+
+test_expect_success 'git ls-files --format path v.s. -s' '
+ git ls-files -s >files &&
+ cut -f2 files >expect &&
+ git ls-files --format="%(path)" >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'git ls-files --format with -m' '
+ echo change >o1.txt &&
+ cat >expect <<-\EOF &&
+ o1.txt
+ o4.txt
+ o5.txt
+ o6.txt
+ EOF
+ git ls-files --format="%(path)" -m >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'git ls-files --format with -d' '
+ echo o7 >o7.txt &&
+ git add o7.txt &&
+ rm o7.txt &&
+ cat >expect <<-\EOF &&
+ o4.txt
+ o5.txt
+ o6.txt
+ o7.txt
+ EOF
+ git ls-files --format="%(path)" -d >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'git ls-files --format v.s -s' '
+ git ls-files --stage >expect &&
+ git ls-files --format="%(objectmode) %(objectname) %(stage)%x09%(path)" >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'git ls-files --format with --debug' '
+ git ls-files --debug >expect &&
+ git ls-files --format="%(path)" --debug >actual &&
+ test_cmp expect actual
+'
+
+test_done