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added useHead option to get most recent commit hash #4

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added useHead option to get most recent commit hash #4

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2b44bd1
added useHead option to get most recent commit hash
moliver-bb Mar 9, 2016
7129564
Update README.md
moliver-bb Mar 9, 2016
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4 changes: 4 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -34,3 +34,7 @@ module.exports = {
#### `shaLength`

Allows truncating the SHA to a specific character length. 7 by default.

#### `useHead`

Boolean: if useHead is true will return current git hash, if false will return most recent git hash of files within chunk
27 changes: 16 additions & 11 deletions lib/GitSHAPlugin.js
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Expand Up @@ -8,12 +8,14 @@ var async = require('async'),
function GitSHAPlugin(options) {
options = options || {};
this.shaLength = options.shaLength || 7;
this.useHead = options.useHead;
}
module.exports = GitSHAPlugin;

GitSHAPlugin.prototype.constructor = GitSHAPlugin;
GitSHAPlugin.prototype.apply = function(compiler) {
var replaceSha = this.replaceSha.bind(this);
var useHead = this.useHead;
var projectRoot = path.resolve();
var cwdToProjectRoot = path.relative(process.cwd(), projectRoot) || '.';
compiler.plugin("compilation", function(compilation) {
Expand All @@ -22,17 +24,20 @@ GitSHAPlugin.prototype.apply = function(compiler) {
// final hashes and asset paths are computed, so it's most appropriate.
compilation.plugin("optimize-tree", function(chunks, modules, done) {
var tasks = chunks.map(function (chunk) {
var files = chunk.modules.map(function (m) {
return m.resource
&& m.resource.indexOf(projectRoot) === 0
// trim paths a bit - we can give git relative paths, and this
// helps us avoid argument length limits
&& m.resource
.replace(projectRoot, cwdToProjectRoot)
.replace(STRIP_QUERY_REGEXP, '');
}).filter(Boolean);

return gitsha.bind(null, files);
if(!useHead) {
var files = chunk.modules.map(function (m) {
return m.resource
&& m.resource.indexOf(projectRoot) === 0
// trim paths a bit - we can give git relative paths, and this
// helps us avoid argument length limits
&& m.resource
.replace(projectRoot, cwdToProjectRoot)
.replace(STRIP_QUERY_REGEXP, '');
}).filter(Boolean);

return gitsha.bind(null, files);
}
else return gitsha;
});

async.parallel(tasks, function(err, res) {
Expand Down