pidgin/nest
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Fix the title of the index page.
2020-03-05, Elliott Sales de Andrade
03c86a48e9c0
Fix the title of the index page.
Currently, all breadcrumbs are subpages of "About", which is really
weird on the about subpages, since they become "About > About >
Subpage".
/**
* For each content page:
* * reads last change date form mercurial
* * writes last edited date to front matter
*/
/*****************************************************************************
* Imports
*****************************************************************************/
const
fs
=
require
(
'fs'
).
promises
const
path
=
require
(
'path'
)
const
{
spawn
}
=
require
(
'child_process'
)
const
front
=
require
(
'front-matter'
)
const
yaml
=
require
(
'js-yaml'
)
/*****************************************************************************
* Set Up
*****************************************************************************/
const
mdRegex
=
/\.md$/
const
hgLogArgs
=
[
'log'
,
'--follow'
,
'--pager'
,
'never'
,
'--color'
,
'never'
]
const
yamlDumpSettings
=
{
indent
:
2
}
/*****************************************************************************
* Execution
*****************************************************************************/
getMdPaths
(
path
.
join
(
__dirname
,
'../hugo/content/'
)).
then
(
paths
=>
paths
.
map
(
async
function
(
file
)
{
const
[
commits
,
{
attributes
,
body
}]
=
await
Promise
.
all
([
getCommits
(
file
),
getFrontMatter
(
file
),
])
const
lastmod
=
commits
[
0
].
date
const
date
=
commits
[
commits
.
length
-
1
].
date
const
newFrontString
=
yaml
.
dump
({
...
attributes
,
lastmod
,
date
},
yamlDumpSettings
)
.
trim
()
const
output
=
`---\n
${
newFrontString
}
\n---\n\n
${
body
}
`
await
fs
.
writeFile
(
file
,
output
)
console
.
log
(
`Updated:
${
file
}
`
)
})
)
/*****************************************************************************
* Mercurial
*****************************************************************************/
/**
* Get an ordered array commits for a file
* @param {string} file the file path
*/
function
getCommits
(
file
)
{
return
new
Promise
((
resolve
,
reject
)
=>
{
const
log
=
spawn
(
'hg'
,
[...
hgLogArgs
,
file
])
const
commits
=
[]
log
.
stdout
.
on
(
'data'
,
data
=>
{
commits
.
push
(
...
data
.
toString
()
.
split
(
'\n\n'
)
.
filter
(
Boolean
)
.
map
(
parseCommit
)
.
filter
(
filterCommits
)
)
})
log
.
on
(
'close'
,
code
=>
{
if
(
code
!==
0
)
{
return
reject
(
new
Error
(
`Unexpected return code from hg log
${
code
}
`
)
)
}
resolve
(
commits
.
sort
((
a
,
b
)
=>
a
.
date
-
b
.
date
).
reverse
())
})
})
}
/**
* Converts the raw commit data from log into a a commit object
* @param {string} commitString raw commit from hg output
*/
function
parseCommit
(
commitString
)
{
const
commit
=
{}
commitString
.
split
(
'\n'
)
.
filter
(
Boolean
)
.
forEach
(
line
=>
{
const
[,
key
,
value
]
=
/(\w+):\s+(.+)/
.
exec
(
line
)
switch
(
key
)
{
case
'parent'
:
case
'bookmark'
:
if
(
!
commit
[
key
])
{
commit
[
key
]
=
[]
}
commit
[
key
].
push
(
value
)
break
case
'date'
:
commit
[
key
]
=
new
Date
(
value
)
break
default
:
commit
[
key
]
=
value
}
})
return
commit
}
/**
* Filters out commits that contain an automation flag
* @param {commit}
*/
const
filterCommits
=
({
summary
})
=>
!
/^\[(Automated|Auto|Minor)\]/i
.
test
(
summary
)
/*****************************************************************************
* Helpers
*****************************************************************************/
/**
* reads and parses a markdown file for frontmatter
* @param {string} file path to markdown file
*/
async
function
getFrontMatter
(
file
)
{
return
fs
.
readFile
(
file
,
'utf8'
).
then
(
contents
=>
front
(
contents
))
}
/**
* creates a list of all markdown files in a directory
* @param {string} directory directory to search for markdown files
*/
async
function
getMdPaths
(
directory
)
{
let
output
=
[]
let
items
=
(
await
fs
.
readdir
(
directory
)).
map
(
i
=>
path
.
join
(
directory
,
i
))
while
(
items
.
length
)
{
const
item
=
items
.
pop
()
const
stat
=
await
fs
.
stat
(
item
)
if
(
stat
.
isDirectory
())
{
items
.
push
(...(
await
fs
.
readdir
(
item
)).
map
(
i
=>
path
.
join
(
item
,
i
)
))
}
else
if
(
stat
.
isFile
()
&&
mdRegex
.
test
(
item
))
{
output
.
push
(
item
)
}
}
return
output
.
sort
()
}