#!/bin/sh

# Checks that the configuration documents stay consistent with each other and
# with cgit. The manual and the reference config name the same keys, and cgit
# accepts every key the manual documents and no other. The reference config
# changes nothing as it ships and puts scan-path after every global setting,
# and two settings the manual wants prior to scan-path are shown to miss a
# scan above them. The manual's contents name its sections in order, and both
# settings sections keep their entries sorted.

test_description='Check the configuration documents'
CGIT_TEST_NO_CREATE_REPOS=YesPlease
. ./setup.sh

ROOT="$TEST_OUTPUT_DIRECTORY/.."

test_expect_success 'extract the key lists' '
	sed -n "/^Global settings$/,/^Repository-specific cgitrc file$/p" "$ROOT/MANUAL.txt" |
	sed -n "s/^\([a-z][a-zA-Z0-9.<>-]*\)::$/\1/p" |
	sort >manual-keys &&
	sed -n -e "s/^#\{0,1\}\(mimetype\)\..*=.*/\1.<ext>/p" \
		-e "s/^#\{0,1\}\(repo\.module-link\)\..*=.*/\1.<path>/p" \
		-e "s/^#\{0,1\}\([a-z][a-zA-Z0-9.<>-]*\)=.*/\1/p" "$ROOT/custom/cgitrc" |
	sort -u >example-keys &&
	test -s manual-keys && test -s example-keys
'

test_expect_success 'the reference config sets every documented key' '
	comm -23 manual-keys example-keys >missing &&
	test_must_be_empty missing
'

test_expect_success 'every key the reference config sets is documented' '
	comm -13 manual-keys example-keys >undocumented &&
	test_must_be_empty undocumented
'

# Each documented key is given an empty value, the global ones ahead of the
# repository and the repo.* ones after it, along with one key of each kind
# that cgit does not know, which shows the warning would be seen.
test_expect_success 'cgit accepts every key the manual documents' '
	{
		grep -v "^repo\." manual-keys |
		sed -e "s/^mimetype\.<ext>$/mimetype.txt/" -e "s/$/=/" &&
		echo "no-such-key=" &&
		echo "repo.url=docs" &&
		grep "^repo\." manual-keys | grep -v "^repo\.url$" |
		sed -e "s/^repo\.module-link\.<path>$/repo.module-link.sub/" -e "s/$/=/" &&
		echo "repo.no-such-key="
	} >keysrc &&
	cgit_rc keysrc "url=" >keys.out 2>keys.err &&
	grep "Unknown" keys.err >unknown &&
	test_write_lines "[cgit] Unknown config key: no-such-key" \
		"[cgit] Unknown repo config key: no-such-key" >expect &&
	test_cmp expect unknown
'

# The names are read off the comparisons apply_config and cgit_repo_config
# make, the latter written without the repo. prefix.
test_expect_success 'the manual documents every key cgit accepts' '
	sed -n "/^static void apply_config(/,/^}/p" "$ROOT/source/cgit.c" |
	sed -n "s/.*strcmp(name, \"\([^\"]*\)\").*/\1/p" >accepted &&
	sed -n "/^void cgit_repo_config(/,/^}/p" "$ROOT/source/cgit.c" |
	sed -n "s/.*strcmp(name, \"\([^\"]*\)\").*/repo.\1/p" >>accepted &&
	echo mimetype.\<ext\> >>accepted &&
	echo repo.module-link.\<path\> >>accepted &&
	test_line_count -gt 100 accepted &&
	sort -u -o accepted accepted &&
	comm -23 accepted manual-keys >undocumented &&
	test_must_be_empty undocumented
'

# The sample says that copied as-is it leaves cgit as if nothing were set, so
# a repository listed after it renders the same as one listed alone, and
# nothing in it is logged.
test_expect_success 'the reference config changes nothing as it ships' '
	mkrepo repos/sample 1 >/dev/null &&
	{
		echo "repo.url=sample" &&
		echo "repo.path=$PWD/repos/sample/.git"
	} >alonerc &&
	cat "$ROOT/custom/cgitrc" alonerc >samplerc &&
	for url in "" sample/ sample/log/
	do
		cgit_ok alonerc "url=$url" >alone.out &&
		cgit_ok samplerc "url=$url" >sample.out &&
		strip_headers <alone.out >expect &&
		strip_headers <sample.out >actual &&
		test_grep "data-page=" actual &&
		test_cmp expect actual || return 1
	done
'

# A scanned repository inherits the global settings above scan-path, so the
# sample keeps none below it.
test_expect_success 'the reference config scans after every global setting' '
	sed -n "/^#\{0,1\}scan-path=/,\$p" "$ROOT/custom/cgitrc" |
	sed -n "s/^#\{0,1\}\([a-z][a-zA-Z0-9.<>-]*\)=.*/\1/p" |
	grep -v "^repo\." >after-scan-path &&
	echo scan-path >expect &&
	test_cmp expect after-scan-path
'

# The scan runs as its line is read, which is why the manual has these two
# defined prior to it. Below it, strict-export comes too late to filter and
# cache-size too late to keep the list, though the page is still cached.
test_expect_success 'strict-export and cache-size reach the scan only above it' '
	mkrepo scanned/exported 1 >/dev/null &&
	mkrepo scanned/plain 1 >/dev/null &&
	touch scanned/exported/.git/export-ok &&
	mkdir above below &&
	{
		echo "virtual-root=/" &&
		echo "cache-root=$PWD/above" &&
		echo "strict-export=export-ok" &&
		echo "cache-size=64" &&
		echo "scan-path=$PWD/scanned"
	} >aboverc &&
	{
		echo "virtual-root=/" &&
		echo "cache-root=$PWD/below" &&
		echo "scan-path=$PWD/scanned" &&
		echo "strict-export=export-ok" &&
		echo "cache-size=64"
	} >belowrc &&
	cgit_ok aboverc "url=" >tmp &&
	test_grep ">exported</a>" tmp &&
	test_grep ! ">plain</a>" tmp &&
	ls above/rc-* &&
	cgit_ok belowrc "url=" >tmp &&
	test_grep ">plain</a>" tmp &&
	ls below >slots &&
	test_line_count = 1 slots &&
	test_grep ! "^rc-" slots
'

test_expect_success 'the manual lists its global settings in order' '
	sed -n "/^Global settings$/,/^Repository settings$/p" "$ROOT/MANUAL.txt" |
	sed -n "s/^\([a-z][a-zA-Z0-9.<>-]*\)::$/\1/p" >global-order &&
	sort -c global-order
'

test_expect_success 'the manual lists its repository settings in order' '
	sed -n "/^Repository settings$/,/^Repository-specific cgitrc file$/p" "$ROOT/MANUAL.txt" |
	sed -n "s/^\(repo\.[a-zA-Z0-9.<>-]*\)::$/\1/p" >repo-order &&
	sort -c repo-order
'

# A section heading is the line above a row of dashes, and the contents list
# names every section but its own.
test_expect_success 'the contents of the manual name its sections in order' '
	sed -n "/^Contents$/,/^[^-]/s/^- //p" "$ROOT/MANUAL.txt" >contents &&
	test -s contents &&
	sed -n "\$!N;/\n--*\$/P;D" "$ROOT/MANUAL.txt" |
	grep -v "^Contents$" >sections &&
	test_cmp sections contents
'

test_done