Extensions: skills, plugins, MCP, sub-agents; configurable keys
- Skills (SKILL.md discovery, skill tool, /skills /skill) - plugin.json exec tools with permission prompts, timeouts and workspace trust (/plugins) - MCP stdio client: JSON-RPC initialize/tools/list/tools/call, mcp__server__tool, /mcp and sidebar status - task tool with general/explore/plan and .agent/agents/*.md roles, parallel read-only runs, cancel propagation, /agents - Keymap with Ctrl+X leader, keybinds.json overrides and /keys panel - Collapsed thinking, throttled streaming Markdown, leaner tool output, parallel read-only tools - Spawn: close-on-exec pipes and a process-wide fork lock - Tests for keymap, skills, plugins, MCP, sub-agents, shell compaction; docs/plugins.md
This commit is contained in:
WHC
+333
-89
@@ -50,6 +50,93 @@ static int is_regular(const char *full) {
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/* --- read_file ----------------------------------------------------------- */
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#define READ_LINE_MAX 2000
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/* Default-profile read: "path · lines a-b of N" header, `N|` numbers,
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* long lines cut, and the next offset when more remains. */
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static int read_compact(FILE *fp, const char *path, long offset, long limit,
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int numbers, cst_tool_result_t *r) {
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if (offset <= 0)
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offset = 1;
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if (limit <= 0)
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limit = RANGE_DEFAULT_LINES;
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cst_buf_t b = {0}, line = {0};
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long lineno = 0, shown = 0, cut_lines = 0;
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int full = 0, binary = 0, ch;
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for (;;) {
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line.len = 0;
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int got = 0, cr = 0;
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size_t len = 0;
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while ((ch = fgetc(fp)) != EOF) {
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got = 1;
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if (ch == 0)
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binary = 1;
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if (ch == '\n')
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break;
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len++;
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cr = ch == '\r';
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if (line.len < READ_LINE_MAX + 8) {
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char cc = (char)ch;
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cst_buf_append(&line, &cc, 1);
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}
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}
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if (!got || binary)
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break;
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lineno++;
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if (lineno < offset || shown >= limit || full)
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continue;
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len -= (size_t)cr;
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if (b.len + (len < READ_LINE_MAX ? len : READ_LINE_MAX) > RANGE_OUT_MAX) {
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full = 1;
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continue;
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}
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if (numbers)
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cst_buf_printf(&b, "%ld|", lineno);
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if (len > READ_LINE_MAX) {
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size_t keep = cst_utf8_floor(line.buf, READ_LINE_MAX);
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cst_buf_append(&b, line.buf, keep);
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cst_buf_printf(&b, " … [line cut, +%zu bytes]\n", len - keep);
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cut_lines++;
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} else {
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if (len)
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cst_buf_append(&b, line.buf, len);
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cst_buf_puts(&b, "\n");
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}
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shown++;
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}
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cst_buf_free(&line);
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if (binary) {
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cst_buf_free(&b);
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return tool_set_resultf(r, 1,
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"error: %.200s is a binary file; inspect it with "
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"run_shell (file, xxd | head)",
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path);
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}
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long last = offset + shown - 1;
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cst_buf_t out = {0};
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if (lineno == 0)
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cst_buf_printf(&out, "%s · empty file\n", path);
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else if (shown == 0)
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cst_buf_printf(&out, "%s · %ld line%s; offset %ld is past the end\n", path,
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lineno, lineno == 1 ? "" : "s", offset);
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else if (offset == 1 && last == lineno)
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cst_buf_printf(&out, "%s · %ld line%s\n", path, lineno,
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lineno == 1 ? "" : "s");
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else
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cst_buf_printf(&out, "%s · lines %ld-%ld of %ld\n", path, offset, last,
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lineno);
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if (b.buf)
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cst_buf_append(&out, b.buf, b.len);
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cst_buf_free(&b);
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if (shown && last < lineno)
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cst_buf_printf(&out, "… %ld more line%s; continue with offset=%ld\n",
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lineno - last, lineno - last == 1 ? "" : "s", last + 1);
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if (cut_lines)
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cst_buf_printf(&out, "(%ld long line%s cut at %d bytes)\n", cut_lines,
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cut_lines == 1 ? "" : "s", READ_LINE_MAX);
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return tool_take_buf(r, &out, 0);
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}
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int cst_tool_read_file2(const cst_tool_ctx_t *ctx, const ctl_tool_call_t *c,
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cst_tool_result_t *r) {
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const char *path = tool_arg(c, "path");
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@@ -70,8 +157,13 @@ int cst_tool_read_file2(const cst_tool_ctx_t *ctx, const ctl_tool_call_t *c,
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long offset = tool_arg_long(c, "offset", 0);
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long limit = tool_arg_long(c, "limit", 0);
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int numbers = tool_arg_bool(c, "line_numbers", 0);
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int numbers = tool_arg_bool(c, "line_numbers", ctx->compact);
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if (ctx->compact) {
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int rc = read_compact(fp, path, offset, limit, numbers, r);
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fclose(fp);
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return rc;
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}
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if (offset <= 0 && limit <= 0 && !numbers) {
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fclose(fp);
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size_t n = 0;
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@@ -168,6 +260,87 @@ static size_t count_occ(const char *hay, size_t hn, const char *needle,
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return cnt;
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}
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/* "12, 40, 77" — line numbers of the first few occurrences. */
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static void occ_lines(const char *hay, size_t hn, const char *nd, size_t nn,
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char *out, size_t out_sz) {
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out[0] = 0;
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size_t used = 0;
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long line = 1;
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size_t last = 0;
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int k = 0;
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for (size_t i = 0; nn && i + nn <= hn && k < 6;) {
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const char *p = memchr(hay + i, nd[0], hn - i - nn + 1);
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if (!p)
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break;
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i = (size_t)(p - hay);
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if (memcmp(p, nd, nn) != 0) {
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i++;
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continue;
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}
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for (size_t j = last; j < i; j++)
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line += hay[j] == '\n';
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last = i;
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int w = snprintf(out + used, out_sz - used, "%s%ld", k ? ", " : "", line);
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if (w < 0 || (size_t)w >= out_sz - used)
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break;
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used += (size_t)w;
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k++;
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i += nn;
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}
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}
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static int trimmed_eq(const char *a, size_t an, const char *b, size_t bn) {
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while (an && isspace((unsigned char)*a))
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a++, an--;
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while (an && isspace((unsigned char)a[an - 1]))
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an--;
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while (bn && isspace((unsigned char)*b))
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b++, bn--;
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while (bn && isspace((unsigned char)b[bn - 1]))
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bn--;
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return an && an == bn && memcmp(a, b, an) == 0;
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}
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/* old_string was not found: lines whose trimmed text equals old_string's
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* first non-blank line, as "42, 97" (empty when none). */
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static void near_lines(const char *hay, size_t hn, const char *old, size_t on,
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char *out, size_t out_sz) {
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out[0] = 0;
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const char *f = old;
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size_t fl = 0;
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for (size_t i = 0; i < on;) {
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const char *e = memchr(old + i, '\n', on - i);
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size_t end = e ? (size_t)(e - old) : on;
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int blank = 1;
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for (size_t j = i; j < end; j++)
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if (!isspace((unsigned char)old[j]))
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blank = 0;
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if (!blank) {
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f = old + i;
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fl = end - i;
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break;
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}
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i = end + 1;
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}
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if (!fl)
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return;
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size_t used = 0;
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long line = 1;
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int k = 0;
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for (size_t i = 0; i < hn && k < 5; line++) {
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const char *e = memchr(hay + i, '\n', hn - i);
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size_t end = e ? (size_t)(e - hay) : hn;
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if (trimmed_eq(hay + i, end - i, f, fl)) {
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int w = snprintf(out + used, out_sz - used, "%s%ld", k ? ", " : "", line);
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if (w < 0 || (size_t)w >= out_sz - used)
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break;
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used += (size_t)w;
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k++;
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}
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i = end + 1;
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}
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}
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static char *replace_all(const char *hay, size_t hn, const char *old,
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size_t on, const char *nw, size_t nwn, int all,
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size_t *out_len) {
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@@ -272,17 +445,29 @@ static int plan_edit(const cst_tool_ctx_t *ctx, const ctl_tool_call_t *c,
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}
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int rc = 0;
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if (cnt == 0) {
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snprintf(err, err_sz,
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"error: old_string not found in %.200s; it must match the file "
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"exactly (whitespace and indentation included) — re-read the "
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"file and copy the text",
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path);
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char near[64];
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near_lines(pl->oldc, pl->olen, old, on, near, sizeof(near));
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if (near[0])
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snprintf(err, err_sz,
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"error: old_string not found in %.200s, but its first line "
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"appears (whitespace aside) at line %s — read_file around "
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"there and copy the exact text, indentation included",
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path, near);
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else
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snprintf(err, err_sz,
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"error: old_string not found in %.200s; it must match the file "
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"exactly (whitespace and indentation included) — re-read the "
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"file (or grep for a distinctive word) and copy the text",
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path);
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rc = -1;
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} else if (cnt > 1 && !all) {
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char where[64];
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occ_lines(pl->oldc, pl->olen, old, on, where, sizeof(where));
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snprintf(err, err_sz,
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"error: old_string matches %zu places in %.200s; include more "
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"surrounding lines to make it unique, or set replace_all=true",
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cnt, path);
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"error: old_string matches %zu places in %.200s (lines %s%s); "
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"include more surrounding lines to make it unique, or set "
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"replace_all=true",
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cnt, path, where, cnt > 6 ? ", …" : "");
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rc = -1;
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} else {
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pl->newc = replace_all(pl->oldc, pl->olen, old, on, nw, nwn, all,
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@@ -665,29 +850,54 @@ static int start_rel(const cst_tool_ctx_t *ctx, const char *path,
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}
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/* list_dir */
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#define LIST_COUNT_MAX 100000
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typedef struct {
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cst_buf_t b;
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int count;
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int base_depth;
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int truncated;
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int more; /* entries past LIST_MAX (counted, not shown) */
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int truncated; /* stopped counting */
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} list_ud_t;
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/* Entries directly inside a directory (for the depth boundary). */
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static int dir_entries(const char *full) {
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DIR *d = opendir(full);
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if (!d)
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return -1;
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int n = 0;
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struct dirent *de;
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while ((de = readdir(d)) != NULL) {
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if (strcmp(de->d_name, ".") != 0 && strcmp(de->d_name, "..") != 0)
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n++;
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}
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closedir(d);
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return n;
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}
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static int list_cb(walker_t *w, const char *rel, const char *full,
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const struct stat *st, int depth) {
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(void)full;
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list_ud_t *u = w->ud;
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if (u->count >= LIST_MAX) {
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u->truncated = 1;
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return 1;
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if (++u->more >= LIST_COUNT_MAX) {
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u->truncated = 1;
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return 1;
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}
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return 0;
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}
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const char *name = strrchr(rel, '/');
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name = name ? name + 1 : rel;
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for (int i = 0; i < depth; i++)
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cst_buf_puts(&u->b, " ");
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if (S_ISDIR(st->st_mode))
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cst_buf_printf(&u->b, "%s/%s\n", name,
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skip_dir_name(name) ? " (skipped)" : "");
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else if (S_ISLNK(st->st_mode))
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if (S_ISDIR(st->st_mode)) {
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int k = -1;
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if (skip_dir_name(name))
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cst_buf_printf(&u->b, "%s/ (skipped)\n", name);
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else if (depth + 1 >= w->max_depth && (k = dir_entries(full)) > 0)
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cst_buf_printf(&u->b, "%s/ (%d entr%s)\n", name, k,
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k == 1 ? "y" : "ies");
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else
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cst_buf_printf(&u->b, "%s/%s\n", name, k == 0 ? " (empty)" : "");
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} else if (S_ISLNK(st->st_mode))
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cst_buf_printf(&u->b, "%s@\n", name);
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else
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cst_buf_printf(&u->b, "%s (%lld B)\n", name, (long long)st->st_size);
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@@ -726,9 +936,10 @@ int cst_tool_list_dir(const cst_tool_ctx_t *ctx, const ctl_tool_call_t *c,
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free(w.ig.v);
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if (u.count == 0)
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cst_buf_puts(&u.b, "(empty)\n");
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if (u.truncated)
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cst_buf_printf(&u.b, "... (stopped after %d entries; list a subdirectory)\n",
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LIST_MAX);
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if (u.more)
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cst_buf_printf(&u.b, "… %s%d more entries not shown (list a subdirectory "
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"or use a smaller depth)\n",
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u.truncated ? "over " : "", u.more);
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return tool_take_buf(r, &u.b, 0);
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}
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@@ -824,15 +1035,16 @@ static int glob_cb(walker_t *w, const char *rel, const char *full,
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return 0;
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}
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static glob_ud_t *g_sort_ud;
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static int idx_by_mtime(const void *a, const void *b) {
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int ia = *(const int *)a, ib = *(const int *)b;
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double d = g_sort_ud->mtimes[ib] - g_sort_ud->mtimes[ia];
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if (d > 0)
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return 1;
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if (d < 0)
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return -1;
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return strcmp(g_sort_ud->hits[ia], g_sort_ud->hits[ib]);
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typedef struct {
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const char *path;
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double mtime;
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} glob_hit_t;
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static int hit_by_mtime(const void *a, const void *b) {
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const glob_hit_t *x = a, *y = b;
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if (x->mtime != y->mtime)
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return x->mtime < y->mtime ? 1 : -1;
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return strcmp(x->path, y->path);
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}
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int cst_tool_glob(const cst_tool_ctx_t *ctx, const ctl_tool_call_t *c,
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@@ -865,22 +1077,24 @@ int cst_tool_glob(const cst_tool_ctx_t *ctx, const ctl_tool_call_t *c,
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free(w.ig.v);
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cst_buf_t b = {0};
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int *idx = malloc((size_t)(u.n ? u.n : 1) * sizeof(int));
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if (idx) {
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for (int i = 0; i < u.n; i++)
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idx[i] = i;
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g_sort_ud = &u;
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qsort(idx, (size_t)u.n, sizeof(int), idx_by_mtime);
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g_sort_ud = NULL;
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glob_hit_t *hs = malloc((size_t)(u.n ? u.n : 1) * sizeof(*hs));
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if (hs) {
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for (int i = 0; i < u.n; i++) {
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hs[i].path = u.hits[i];
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hs[i].mtime = u.mtimes[i];
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}
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qsort(hs, (size_t)u.n, sizeof(*hs), hit_by_mtime);
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for (int i = 0; i < u.n && i < GLOB_MAX; i++)
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cst_buf_printf(&b, "%s\n", u.hits[idx[i]]);
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cst_buf_printf(&b, "%s\n", hs[i].path);
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}
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free(idx);
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free(hs);
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if (u.n == 0)
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cst_buf_printf(&b, "(no files match %s)\n", pattern);
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else if (u.n > GLOB_MAX || u.truncated)
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cst_buf_printf(&b, "... (%s%d matches; showing the %d newest)\n",
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u.truncated ? "over " : "", u.n, GLOB_MAX);
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cst_buf_printf(&b, "… %s%d more files (showing the %d newest of %s%d; "
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"narrow the pattern or path)\n",
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u.truncated ? "over " : "", u.n - GLOB_MAX, GLOB_MAX,
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u.truncated ? "over " : "", u.n);
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for (int i = 0; i < u.n; i++)
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free(u.hits[i]);
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free(u.hits);
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@@ -930,19 +1144,24 @@ int cst_workspace_files(const char *ws, char ***out, int max) {
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return u.n;
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}
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/* grep */
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/* grep: matches grouped by file, "N matches in F files" summary. */
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#define GREP_PER_FILE 20
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#define GREP_COUNT_MAX 5000
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typedef struct {
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regex_t re;
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const char *glob;
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int context;
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cst_buf_t b;
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int matches;
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int files;
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int truncated;
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int matches; /* counted (up to GREP_COUNT_MAX) */
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int shown;
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int files; /* text files searched */
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int hit_files; /* files with a match */
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int truncated; /* stopped counting */
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} grep_ud_t;
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static void put_line(cst_buf_t *b, const char *rel, long ln, char sep,
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const char *s, size_t n) {
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static void put_line(cst_buf_t *b, long ln, char sep, const char *s,
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size_t n) {
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if (n && s[n - 1] == '\n')
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n--;
|
||||
if (n && s[n - 1] == '\r')
|
||||
@@ -952,11 +1171,23 @@ static void put_line(cst_buf_t *b, const char *rel, long ln, char sep,
|
||||
n = cst_utf8_floor(s, GREP_LINE_MAX);
|
||||
cut = 1;
|
||||
}
|
||||
cst_buf_printf(b, "%s%c%ld%c", rel, sep, ln, sep);
|
||||
cst_buf_printf(b, "%ld%c", ln, sep);
|
||||
cst_buf_append(b, s, n);
|
||||
cst_buf_puts(b, cut ? " …\n" : "\n");
|
||||
}
|
||||
|
||||
static int line_hit(grep_ud_t *u, const char *s, size_t n) {
|
||||
char tmp[GREP_LINE_MAX * 8];
|
||||
size_t m = n < sizeof(tmp) - 1 ? n : sizeof(tmp) - 1;
|
||||
memcpy(tmp, s, m);
|
||||
tmp[m] = 0;
|
||||
if (m && tmp[m - 1] == '\n')
|
||||
tmp[--m] = 0;
|
||||
if (m && tmp[m - 1] == '\r')
|
||||
tmp[--m] = 0;
|
||||
return regexec(&u->re, tmp, 0, NULL, 0) == 0;
|
||||
}
|
||||
|
||||
static void grep_file(grep_ud_t *u, const char *rel, const char *full) {
|
||||
size_t n = 0;
|
||||
char *buf = tool_slurp(full, &n, READ_FILE_MAX);
|
||||
@@ -996,45 +1227,48 @@ static void grep_file(grep_ud_t *u, const char *rel, const char *full) {
|
||||
nl++;
|
||||
i = end;
|
||||
}
|
||||
int last_printed = -1;
|
||||
for (int i = 0; i < nl && !u->truncated; i++) {
|
||||
char tmp[GREP_LINE_MAX * 8];
|
||||
size_t m = ln[i] < sizeof(tmp) - 1 ? ln[i] : sizeof(tmp) - 1;
|
||||
memcpy(tmp, ls[i], m);
|
||||
tmp[m] = 0;
|
||||
if (m && tmp[m - 1] == '\n')
|
||||
tmp[--m] = 0;
|
||||
if (regexec(&u->re, tmp, 0, NULL, 0) != 0)
|
||||
cst_buf_t fb = {0};
|
||||
int fm = 0, fshown = 0, last_printed = -1;
|
||||
for (int i = 0; i < nl; i++) {
|
||||
if (!line_hit(u, ls[i], ln[i]))
|
||||
continue;
|
||||
if (u->matches >= GREP_MAX_MATCHES) {
|
||||
fm++;
|
||||
if (++u->matches >= GREP_COUNT_MAX)
|
||||
u->truncated = 1;
|
||||
if (fshown < GREP_PER_FILE && u->shown < GREP_MAX_MATCHES) {
|
||||
int from = i - u->context < 0 ? 0 : i - u->context;
|
||||
if (from <= last_printed)
|
||||
from = last_printed + 1;
|
||||
else if (u->context && last_printed >= 0)
|
||||
cst_buf_puts(&fb, "--\n");
|
||||
for (int k = from; k < i; k++)
|
||||
put_line(&fb, k + 1, '-', ls[k], ln[k]);
|
||||
put_line(&fb, i + 1, ':', ls[i], ln[i]);
|
||||
last_printed = i;
|
||||
for (int k = i + 1; k <= i + u->context && k < nl; k++) {
|
||||
if (line_hit(u, ls[k], ln[k]))
|
||||
break; /* printed by the main loop */
|
||||
put_line(&fb, k + 1, '-', ls[k], ln[k]);
|
||||
last_printed = k;
|
||||
}
|
||||
fshown++;
|
||||
u->shown++;
|
||||
}
|
||||
if (u->truncated)
|
||||
break;
|
||||
}
|
||||
int from = i - u->context < 0 ? 0 : i - u->context;
|
||||
if (from <= last_printed)
|
||||
from = last_printed + 1;
|
||||
else if (u->context && last_printed >= 0)
|
||||
cst_buf_puts(&u->b, "--\n");
|
||||
for (int k = from; k < i; k++)
|
||||
put_line(&u->b, rel, k + 1, '-', ls[k], ln[k]);
|
||||
put_line(&u->b, rel, i + 1, ':', ls[i], ln[i]);
|
||||
last_printed = i;
|
||||
u->matches++;
|
||||
int to = i + u->context;
|
||||
for (int k = i + 1; k <= to && k < nl; k++) {
|
||||
/* a later matching line is printed by the main loop */
|
||||
char t2[GREP_LINE_MAX * 8];
|
||||
size_t m2 = ln[k] < sizeof(t2) - 1 ? ln[k] : sizeof(t2) - 1;
|
||||
memcpy(t2, ls[k], m2);
|
||||
t2[m2] = 0;
|
||||
if (m2 && t2[m2 - 1] == '\n')
|
||||
t2[--m2] = 0;
|
||||
if (regexec(&u->re, t2, 0, NULL, 0) == 0)
|
||||
break;
|
||||
put_line(&u->b, rel, k + 1, '-', ls[k], ln[k]);
|
||||
last_printed = k;
|
||||
}
|
||||
}
|
||||
if (fm) {
|
||||
u->hit_files++;
|
||||
if (fm == 1)
|
||||
cst_buf_printf(&u->b, "%s\n", rel);
|
||||
else
|
||||
cst_buf_printf(&u->b, "%s (%d matches)\n", rel, fm);
|
||||
if (fb.buf)
|
||||
cst_buf_append(&u->b, fb.buf, fb.len);
|
||||
if (fm > fshown)
|
||||
cst_buf_printf(&u->b, "… %d more in this file\n", fm - fshown);
|
||||
}
|
||||
cst_buf_free(&fb);
|
||||
free(ls);
|
||||
free(ln);
|
||||
free(buf);
|
||||
@@ -1137,14 +1371,24 @@ int cst_tool_grep(const cst_tool_ctx_t *ctx, const ctl_tool_call_t *c,
|
||||
free(w.ig.v);
|
||||
}
|
||||
regfree(&u.re);
|
||||
if (u.matches == 0)
|
||||
if (u.matches == 0) {
|
||||
cst_buf_free(&u.b);
|
||||
cst_buf_printf(&u.b, "(no matches in %d file%s)\n", u.files,
|
||||
u.files == 1 ? "" : "s");
|
||||
else if (u.truncated)
|
||||
cst_buf_printf(&u.b, "... (stopped at %d matches; narrow the pattern or "
|
||||
"path)\n",
|
||||
GREP_MAX_MATCHES);
|
||||
return tool_take_buf(r, &u.b, 0);
|
||||
return tool_take_buf(r, &u.b, 0);
|
||||
}
|
||||
cst_buf_t out = {0};
|
||||
cst_buf_printf(&out, "%s%d match%s in %d file%s", u.truncated ? "over " : "",
|
||||
u.matches, u.matches == 1 ? "" : "es", u.hit_files,
|
||||
u.hit_files == 1 ? "" : "s");
|
||||
if (u.shown < u.matches)
|
||||
cst_buf_printf(&out, " (showing %d; narrow with path/glob or a tighter "
|
||||
"pattern)",
|
||||
u.shown);
|
||||
cst_buf_puts(&out, "\n");
|
||||
cst_buf_append(&out, u.b.buf, u.b.len);
|
||||
cst_buf_free(&u.b);
|
||||
return tool_take_buf(r, &out, 0);
|
||||
}
|
||||
|
||||
#else /* _WIN32: directory tools are not implemented natively */
|
||||
|
||||
Reference in New Issue
Block a user