Make 'grep -l' work

diff --git a/applets/usage.h b/applets/usage.h
index bf2f7bd..5712c44 100644 (file)
--- a/applets/usage.h
+++ b/applets/usage.h
@@ -522,6 +522,7 @@
        "\t-H\tprefix output lines with filename where match was found\n" \
        "\t-h\tsuppress the prefixing filename on output\n" \
        "\t-i\tignore case distinctions\n" \
+       "\t-l\tlist names of files that match\n" \
        "\t-n\tprint line number with output lines\n" \
        "\t-q\tbe quiet. Returns 0 if result was found, 1 otherwise\n" \
        "\t-v\tselect non-matching lines\n" \

diff --git a/findutils/grep.c b/findutils/grep.c
index 8c67976..b519adf 100644 (file)
--- a/findutils/grep.c
+++ b/findutils/grep.c
@@ -41,6 +41,7 @@ static int print_count_only  = 0;
 static int be_quiet          = 0;
 static int invert_search     = 0;
 static int suppress_err_msgs = 0;
+static int files_that_match  = 0;
 
 #ifdef BB_FEATURE_GREP_CONTEXT
 extern char *optarg; /* in getopt.h */
@@ -105,7 +106,7 @@ static void grep_file(FILE *file)
 
                        /* otherwise, keep track of matches and print the matched line */
                        nmatches++;
-                       if (!print_count_only) {
+                       if (print_count_only==0 && files_that_match==0) {
 #ifdef BB_FEATURE_GREP_CONTEXT
                                int prevpos = (curpos == 0) ? lines_before - 1 : curpos - 1;
 
@@ -163,11 +164,18 @@ static void grep_file(FILE *file)
        }
 
        /* special-case post processing */
-       if (print_count_only) {
+       if (files_that_match) {
+           if (nmatches > 0) {
+               printf("%s", cur_file);
+               if (nmatches)
+                   printf(":%d", nmatches);
+               printf("\n");
+           }
+       } else if (print_count_only) {
                if (print_filename)
                        printf("%s:", cur_file);
                printf("%i\n", nmatches);
-       }
+       } 
 
        /* remember if we matched */
        if (nmatches != 0)
@@ -183,7 +191,7 @@ extern int grep_main(int argc, char **argv)
 #endif
 
        /* do normal option parsing */
-       while ((opt = getopt(argc, argv, "iHhnqvsc"
+       while ((opt = getopt(argc, argv, "iHhlnqvsc"
 #ifdef BB_FEATURE_GREP_CONTEXT
 "A:B:C:"
 #endif
@@ -192,6 +200,9 @@ extern int grep_main(int argc, char **argv)
                        case 'i':
                                ignore_case++;
                                break;
+                       case 'l':
+                               files_that_match++;
+                               break;
                        case 'H':
                                print_filename++;
                                break;
@@ -242,7 +253,7 @@ extern int grep_main(int argc, char **argv)
                show_usage();
 
        /* sanity check */
-       if (print_count_only || be_quiet) {
+       if (print_count_only || be_quiet || files_that_match) {
                print_line_num = 0;
 #ifdef BB_FEATURE_GREP_CONTEXT
                lines_before = 0;

diff --git a/grep.c b/grep.c
index 8c67976..b519adf 100644 (file)
--- a/grep.c
+++ b/grep.c
@@ -41,6 +41,7 @@ static int print_count_only  = 0;
 static int be_quiet          = 0;
 static int invert_search     = 0;
 static int suppress_err_msgs = 0;
+static int files_that_match  = 0;
 
 #ifdef BB_FEATURE_GREP_CONTEXT
 extern char *optarg; /* in getopt.h */
@@ -105,7 +106,7 @@ static void grep_file(FILE *file)
 
                        /* otherwise, keep track of matches and print the matched line */
                        nmatches++;
-                       if (!print_count_only) {
+                       if (print_count_only==0 && files_that_match==0) {
 #ifdef BB_FEATURE_GREP_CONTEXT
                                int prevpos = (curpos == 0) ? lines_before - 1 : curpos - 1;
 
@@ -163,11 +164,18 @@ static void grep_file(FILE *file)
        }
 
        /* special-case post processing */
-       if (print_count_only) {
+       if (files_that_match) {
+           if (nmatches > 0) {
+               printf("%s", cur_file);
+               if (nmatches)
+                   printf(":%d", nmatches);
+               printf("\n");
+           }
+       } else if (print_count_only) {
                if (print_filename)
                        printf("%s:", cur_file);
                printf("%i\n", nmatches);
-       }
+       } 
 
        /* remember if we matched */
        if (nmatches != 0)
@@ -183,7 +191,7 @@ extern int grep_main(int argc, char **argv)
 #endif
 
        /* do normal option parsing */
-       while ((opt = getopt(argc, argv, "iHhnqvsc"
+       while ((opt = getopt(argc, argv, "iHhlnqvsc"
 #ifdef BB_FEATURE_GREP_CONTEXT
 "A:B:C:"
 #endif
@@ -192,6 +200,9 @@ extern int grep_main(int argc, char **argv)
                        case 'i':
                                ignore_case++;
                                break;
+                       case 'l':
+                               files_that_match++;
+                               break;
                        case 'H':
                                print_filename++;
                                break;
@@ -242,7 +253,7 @@ extern int grep_main(int argc, char **argv)
                show_usage();
 
        /* sanity check */
-       if (print_count_only || be_quiet) {
+       if (print_count_only || be_quiet || files_that_match) {
                print_line_num = 0;
 #ifdef BB_FEATURE_GREP_CONTEXT
                lines_before = 0;

diff --git a/include/usage.h b/include/usage.h
index bf2f7bd..5712c44 100644 (file)
--- a/include/usage.h
+++ b/include/usage.h
@@ -522,6 +522,7 @@
        "\t-H\tprefix output lines with filename where match was found\n" \
        "\t-h\tsuppress the prefixing filename on output\n" \
        "\t-i\tignore case distinctions\n" \
+       "\t-l\tlist names of files that match\n" \
        "\t-n\tprint line number with output lines\n" \
        "\t-q\tbe quiet. Returns 0 if result was found, 1 otherwise\n" \
        "\t-v\tselect non-matching lines\n" \

diff --git a/usage.h b/usage.h
index bf2f7bd..5712c44 100644 (file)
--- a/usage.h
+++ b/usage.h
@@ -522,6 +522,7 @@
        "\t-H\tprefix output lines with filename where match was found\n" \
        "\t-h\tsuppress the prefixing filename on output\n" \
        "\t-i\tignore case distinctions\n" \
+       "\t-l\tlist names of files that match\n" \
        "\t-n\tprint line number with output lines\n" \
        "\t-q\tbe quiet. Returns 0 if result was found, 1 otherwise\n" \
        "\t-v\tselect non-matching lines\n" \