#!/bin/sh

# Checks that the configuration documents stay consistent with each other.
# The manual documents every key the reference config sets, the reference
# config sets every key the manual documents and puts scan-path after every
# global setting, and both settings sections of the manual 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 "s/^#\{0,1\}\([a-z][a-zA-Z0-9.<>-]*\)=.*/\1/p" "$ROOT/custom/cgitrc" |
	sed -e "s/^mimetype\..*/mimetype.<ext>/" |
	sort -u >example-keys &&
	sed -n "s/^#\{0,1\}\(repo\.module-link\)\..*=.*/\1.<path>/p" "$ROOT/custom/cgitrc" >>example-keys &&
	sort -o example-keys 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
'

# 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
'

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
'

test_done