test-lib-functions: add parsing helpers for ls-files and ls-tree

Several tests use awk to parse OIDs from the output of 'git ls-files
--stage' and 'git ls-tree'. Introduce helpers to centralize these uses
of awk.

Update t5317-pack-objects-filter-objects.sh to use the new ls-files
helper so that it has some usages to review. Other updates are left for
the future.

Signed-off-by: Neeraj Singh <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: neerajsi-msft

t/t5317-pack-objects-filter-objects.sh

@@ -10,9 +10,6 @@ export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
 # Test blob:none filter.
 
 test_expect_success 'setup r1' '
-	echo "{print \$1}" >print_1.awk &&
-	echo "{print \$2}" >print_2.awk &&
-
 	git init r1 &&
 	for n in 1 2 3 4 5
 	do
@@ -22,10 +19,13 @@ test_expect_success 'setup r1' '
 	done
 '
 
+parse_verify_pack_blob_oid () {
+	awk '{print $1}' -
+}
+
 test_expect_success 'verify blob count in normal packfile' '
-	git -C r1 ls-files -s file.1 file.2 file.3 file.4 file.5 \
-		>ls_files_result &&
-	awk -f print_2.awk ls_files_result |
+	git -C r1 ls-files -s file.1 file.2 file.3 file.4 file.5 |
+	test_parse_ls_files_stage_oids |
 	sort >expected &&
 
 	git -C r1 pack-objects --revs --stdout >all.pack <<-EOF &&
@@ -35,7 +35,7 @@ test_expect_success 'verify blob count in normal packfile' '
 
 	git -C r1 verify-pack -v ../all.pack >verify_result &&
 	grep blob verify_result |
-	awk -f print_1.awk |
+	parse_verify_pack_blob_oid |
 	sort >observed &&
 
 	test_cmp expected observed
@@ -54,12 +54,12 @@ test_expect_success 'verify blob:none packfile has no blobs' '
 test_expect_success 'verify normal and blob:none packfiles have same commits/trees' '
 	git -C r1 verify-pack -v ../all.pack >verify_result &&
 	grep -E "commit|tree" verify_result |
-	awk -f print_1.awk |
+	parse_verify_pack_blob_oid |
 	sort >expected &&
 
 	git -C r1 verify-pack -v ../filter.pack >verify_result &&
 	grep -E "commit|tree" verify_result |
-	awk -f print_1.awk |
+	parse_verify_pack_blob_oid |
 	sort >observed &&
 
 	test_cmp expected observed
@@ -123,8 +123,8 @@ test_expect_success 'setup r2' '
 '
 
 test_expect_success 'verify blob count in normal packfile' '
-	git -C r2 ls-files -s large.1000 large.10000 >ls_files_result &&
-	awk -f print_2.awk ls_files_result |
+	git -C r2 ls-files -s large.1000 large.10000 |
+	test_parse_ls_files_stage_oids |
 	sort >expected &&
 
 	git -C r2 pack-objects --revs --stdout >all.pack <<-EOF &&
@@ -134,7 +134,7 @@ test_expect_success 'verify blob count in normal packfile' '
 
 	git -C r2 verify-pack -v ../all.pack >verify_result &&
 	grep blob verify_result |
-	awk -f print_1.awk |
+	parse_verify_pack_blob_oid |
 	sort >observed &&
 
 	test_cmp expected observed
@@ -161,8 +161,8 @@ test_expect_success 'verify blob:limit=1000' '
 '
 
 test_expect_success 'verify blob:limit=1001' '
-	git -C r2 ls-files -s large.1000 >ls_files_result &&
-	awk -f print_2.awk ls_files_result |
+	git -C r2 ls-files -s large.1000 |
+	test_parse_ls_files_stage_oids |
 	sort >expected &&
 
 	git -C r2 pack-objects --revs --stdout --filter=blob:limit=1001 >filter.pack <<-EOF &&
@@ -172,15 +172,15 @@ test_expect_success 'verify blob:limit=1001' '
 
 	git -C r2 verify-pack -v ../filter.pack >verify_result &&
 	grep blob verify_result |
-	awk -f print_1.awk |
+	parse_verify_pack_blob_oid |
 	sort >observed &&
 
 	test_cmp expected observed
 '
 
 test_expect_success 'verify blob:limit=10001' '
-	git -C r2 ls-files -s large.1000 large.10000 >ls_files_result &&
-	awk -f print_2.awk ls_files_result |
+	git -C r2 ls-files -s large.1000 large.10000 |
+	test_parse_ls_files_stage_oids |
 	sort >expected &&
 
 	git -C r2 pack-objects --revs --stdout --filter=blob:limit=10001 >filter.pack <<-EOF &&
@@ -190,15 +190,15 @@ test_expect_success 'verify blob:limit=10001' '
 
 	git -C r2 verify-pack -v ../filter.pack >verify_result &&
 	grep blob verify_result |
-	awk -f print_1.awk |
+	parse_verify_pack_blob_oid |
 	sort >observed &&
 
 	test_cmp expected observed
 '
 
 test_expect_success 'verify blob:limit=1k' '
-	git -C r2 ls-files -s large.1000 >ls_files_result &&
-	awk -f print_2.awk ls_files_result |
+	git -C r2 ls-files -s large.1000 |
+	test_parse_ls_files_stage_oids |
 	sort >expected &&
 
 	git -C r2 pack-objects --revs --stdout --filter=blob:limit=1k >filter.pack <<-EOF &&
@@ -208,15 +208,15 @@ test_expect_success 'verify blob:limit=1k' '
 
 	git -C r2 verify-pack -v ../filter.pack >verify_result &&
 	grep blob verify_result |
-	awk -f print_1.awk |
+	parse_verify_pack_blob_oid |
 	sort >observed &&
 
 	test_cmp expected observed
 '
 
 test_expect_success 'verify explicitly specifying oversized blob in input' '
-	git -C r2 ls-files -s large.1000 large.10000 >ls_files_result &&
-	awk -f print_2.awk ls_files_result |
+	git -C r2 ls-files -s large.1000 large.10000 |
+	test_parse_ls_files_stage_oids |
 	sort >expected &&
 
 	echo HEAD >objects &&
@@ -226,15 +226,15 @@ test_expect_success 'verify explicitly specifying oversized blob in input' '
 
 	git -C r2 verify-pack -v ../filter.pack >verify_result &&
 	grep blob verify_result |
-	awk -f print_1.awk |
+	parse_verify_pack_blob_oid |
 	sort >observed &&
 
 	test_cmp expected observed
 '
 
 test_expect_success 'verify blob:limit=1m' '
-	git -C r2 ls-files -s large.1000 large.10000 >ls_files_result &&
-	awk -f print_2.awk ls_files_result |
+	git -C r2 ls-files -s large.1000 large.10000 |
+	test_parse_ls_files_stage_oids |
 	sort >expected &&
 
 	git -C r2 pack-objects --revs --stdout --filter=blob:limit=1m >filter.pack <<-EOF &&
@@ -244,7 +244,7 @@ test_expect_success 'verify blob:limit=1m' '
 
 	git -C r2 verify-pack -v ../filter.pack >verify_result &&
 	grep blob verify_result |
-	awk -f print_1.awk |
+	parse_verify_pack_blob_oid |
 	sort >observed &&
 
 	test_cmp expected observed
@@ -253,12 +253,12 @@ test_expect_success 'verify blob:limit=1m' '
 test_expect_success 'verify normal and blob:limit packfiles have same commits/trees' '
 	git -C r2 verify-pack -v ../all.pack >verify_result &&
 	grep -E "commit|tree" verify_result |
-	awk -f print_1.awk |
+	parse_verify_pack_blob_oid |
 	sort >expected &&
 
 	git -C r2 verify-pack -v ../filter.pack >verify_result &&
 	grep -E "commit|tree" verify_result |
-	awk -f print_1.awk |
+	parse_verify_pack_blob_oid |
 	sort >observed &&
 
 	test_cmp expected observed
@@ -289,9 +289,8 @@ test_expect_success 'setup r3' '
 '
 
 test_expect_success 'verify blob count in normal packfile' '
-	git -C r3 ls-files -s sparse1 sparse2 dir1/sparse1 dir1/sparse2 \
-		>ls_files_result &&
-	awk -f print_2.awk ls_files_result |
+	git -C r3 ls-files -s sparse1 sparse2 dir1/sparse1 dir1/sparse2 |
+	test_parse_ls_files_stage_oids |
 	sort >expected &&
 
 	git -C r3 pack-objects --revs --stdout >all.pack <<-EOF &&
@@ -301,7 +300,7 @@ test_expect_success 'verify blob count in normal packfile' '
 
 	git -C r3 verify-pack -v ../all.pack >verify_result &&
 	grep blob verify_result |
-	awk -f print_1.awk |
+	parse_verify_pack_blob_oid |
 	sort >observed &&
 
 	test_cmp expected observed
@@ -342,9 +341,8 @@ test_expect_success 'setup r4' '
 '
 
 test_expect_success 'verify blob count in normal packfile' '
-	git -C r4 ls-files -s pattern sparse1 sparse2 dir1/sparse1 dir1/sparse2 \
-		>ls_files_result &&
-	awk -f print_2.awk ls_files_result |
+	git -C r4 ls-files -s pattern sparse1 sparse2 dir1/sparse1 dir1/sparse2 |
+	test_parse_ls_files_stage_oids |
 	sort >expected &&
 
 	git -C r4 pack-objects --revs --stdout >all.pack <<-EOF &&
@@ -354,35 +352,35 @@ test_expect_success 'verify blob count in normal packfile' '
 
 	git -C r4 verify-pack -v ../all.pack >verify_result &&
 	grep blob verify_result |
-	awk -f print_1.awk |
+	parse_verify_pack_blob_oid |
 	sort >observed &&
 
 	test_cmp expected observed
 '
 
 test_expect_success 'verify sparse:oid=OID' '
-	git -C r4 ls-files -s dir1/sparse1 dir1/sparse2 >ls_files_result &&
-	awk -f print_2.awk ls_files_result |
+	git -C r4 ls-files -s dir1/sparse1 dir1/sparse2 |
+	test_parse_ls_files_stage_oids |
 	sort >expected &&
 
 	git -C r4 ls-files -s pattern >staged &&
-	oid=$(awk -f print_2.awk staged) &&
+	oid=$(test_parse_ls_files_stage_oids <staged) &&
 	git -C r4 pack-objects --revs --stdout --filter=sparse:oid=$oid >filter.pack <<-EOF &&
 	HEAD
 	EOF
 	git -C r4 index-pack ../filter.pack &&
 
 	git -C r4 verify-pack -v ../filter.pack >verify_result &&
 	grep blob verify_result |
-	awk -f print_1.awk |
+	parse_verify_pack_blob_oid |
 	sort >observed &&
 
 	test_cmp expected observed
 '
 
 test_expect_success 'verify sparse:oid=oid-ish' '
-	git -C r4 ls-files -s dir1/sparse1 dir1/sparse2 >ls_files_result &&
-	awk -f print_2.awk ls_files_result |
+	git -C r4 ls-files -s dir1/sparse1 dir1/sparse2 |
+	test_parse_ls_files_stage_oids |
 	sort >expected &&
 
 	git -C r4 pack-objects --revs --stdout --filter=sparse:oid=main:pattern >filter.pack <<-EOF &&
@@ -392,7 +390,7 @@ test_expect_success 'verify sparse:oid=oid-ish' '
 
 	git -C r4 verify-pack -v ../filter.pack >verify_result &&
 	grep blob verify_result |
-	awk -f print_1.awk |
+	parse_verify_pack_blob_oid |
 	sort >observed &&
 
 	test_cmp expected observed
@@ -402,9 +400,8 @@ test_expect_success 'verify sparse:oid=oid-ish' '
 # This models previously omitted objects that we did not receive.
 
 test_expect_success 'setup r1 - delete loose blobs' '
-	git -C r1 ls-files -s file.1 file.2 file.3 file.4 file.5 \
-		>ls_files_result &&
-	awk -f print_2.awk ls_files_result |
+	git -C r1 ls-files -s file.1 file.2 file.3 file.4 file.5 |
+	test_parse_ls_files_stage_oids |
 	sort >expected &&
 
 	for id in `cat expected | sed "s|..|&/|"`

t/test-lib-functions.sh

@@ -1782,6 +1782,16 @@ test_oid_to_path () {
 	echo "${1%$basename}/$basename"
 }
 
+# Parse oids from git ls-files --staged output
+test_parse_ls_files_stage_oids () {
+	awk '{print $2}' -
+}
+
+# Parse oids from git ls-tree output
+test_parse_ls_tree_oids () {
+	awk '{print $3}' -
+}
+
 # Choose a port number based on the test script's number and store it in
 # the given variable name, unless that variable already contains a number.
 test_set_port () {